Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1 | /* -*- mode: c; c-basic-offset: 8; -*- |
| 2 | * vim: noexpandtab sw=8 ts=8 sts=0: |
| 3 | * |
| 4 | * namei.c |
| 5 | * |
| 6 | * Create and rename file, directory, symlinks |
| 7 | * |
| 8 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. |
| 9 | * |
| 10 | * Portions of this code from linux/fs/ext3/dir.c |
| 11 | * |
| 12 | * Copyright (C) 1992, 1993, 1994, 1995 |
| 13 | * Remy Card (card@masi.ibp.fr) |
| 14 | * Laboratoire MASI - Institut Blaise pascal |
| 15 | * Universite Pierre et Marie Curie (Paris VI) |
| 16 | * |
| 17 | * from |
| 18 | * |
| 19 | * linux/fs/minix/dir.c |
| 20 | * |
| 21 | * Copyright (C) 1991, 1992 Linux Torvalds |
| 22 | * |
| 23 | * This program is free software; you can redistribute it and/or |
| 24 | * modify it under the terms of the GNU General Public |
| 25 | * License as published by the Free Software Foundation; either |
| 26 | * version 2 of the License, or (at your option) any later version. |
| 27 | * |
| 28 | * This program is distributed in the hope that it will be useful, |
| 29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 31 | * General Public License for more details. |
| 32 | * |
| 33 | * You should have received a copy of the GNU General Public |
| 34 | * License along with this program; if not, write to the |
| 35 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 36 | * Boston, MA 021110-1307, USA. |
| 37 | */ |
| 38 | |
| 39 | #include <linux/fs.h> |
| 40 | #include <linux/types.h> |
| 41 | #include <linux/slab.h> |
| 42 | #include <linux/highmem.h> |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 43 | #include <linux/quotaops.h> |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 44 | |
| 45 | #define MLOG_MASK_PREFIX ML_NAMEI |
| 46 | #include <cluster/masklog.h> |
| 47 | |
| 48 | #include "ocfs2.h" |
| 49 | |
| 50 | #include "alloc.h" |
| 51 | #include "dcache.h" |
| 52 | #include "dir.h" |
| 53 | #include "dlmglue.h" |
| 54 | #include "extent_map.h" |
| 55 | #include "file.h" |
| 56 | #include "inode.h" |
| 57 | #include "journal.h" |
| 58 | #include "namei.h" |
| 59 | #include "suballoc.h" |
Mark Fasheh | aa95887 | 2006-04-21 13:49:02 -0700 | [diff] [blame] | 60 | #include "super.h" |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 61 | #include "symlink.h" |
| 62 | #include "sysfile.h" |
| 63 | #include "uptodate.h" |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 64 | #include "xattr.h" |
Tiger Yang | 89c38bd | 2008-11-14 11:17:41 +0800 | [diff] [blame] | 65 | #include "acl.h" |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 66 | |
| 67 | #include "buffer_head_io.h" |
| 68 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 69 | static int ocfs2_mknod_locked(struct ocfs2_super *osb, |
| 70 | struct inode *dir, |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 71 | struct inode *inode, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 72 | dev_t dev, |
| 73 | struct buffer_head **new_fe_bh, |
| 74 | struct buffer_head *parent_fe_bh, |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 75 | handle_t *handle, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 76 | struct ocfs2_alloc_context *inode_ac); |
| 77 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 78 | static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb, |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 79 | struct inode **ret_orphan_dir, |
Tao Ma | 19bd341 | 2009-08-18 11:44:10 +0800 | [diff] [blame] | 80 | u64 blkno, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 81 | char *name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 82 | struct ocfs2_dir_lookup_result *lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 83 | |
| 84 | static int ocfs2_orphan_add(struct ocfs2_super *osb, |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 85 | handle_t *handle, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 86 | struct inode *inode, |
Tristan Ye | 3939fda | 2010-03-19 09:21:09 +0800 | [diff] [blame] | 87 | struct buffer_head *fe_bh, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 88 | char *name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 89 | struct ocfs2_dir_lookup_result *lookup, |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 90 | struct inode *orphan_dir_inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 91 | |
| 92 | static int ocfs2_create_symlink_data(struct ocfs2_super *osb, |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 93 | handle_t *handle, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 94 | struct inode *inode, |
| 95 | const char *symname); |
| 96 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 97 | /* An orphan dir name is an 8 byte value, printed as a hex string */ |
| 98 | #define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64))) |
| 99 | |
| 100 | static struct dentry *ocfs2_lookup(struct inode *dir, struct dentry *dentry, |
| 101 | struct nameidata *nd) |
| 102 | { |
| 103 | int status; |
| 104 | u64 blkno; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 105 | struct inode *inode = NULL; |
| 106 | struct dentry *ret; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 107 | struct ocfs2_inode_info *oi; |
| 108 | |
| 109 | mlog_entry("(0x%p, 0x%p, '%.*s')\n", dir, dentry, |
| 110 | dentry->d_name.len, dentry->d_name.name); |
| 111 | |
| 112 | if (dentry->d_name.len > OCFS2_MAX_FILENAME_LEN) { |
| 113 | ret = ERR_PTR(-ENAMETOOLONG); |
| 114 | goto bail; |
| 115 | } |
| 116 | |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 117 | mlog(0, "find name %.*s in directory %llu\n", dentry->d_name.len, |
| 118 | dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 119 | |
Jan Kara | cb25797 | 2009-06-04 15:26:50 +0200 | [diff] [blame] | 120 | status = ocfs2_inode_lock_nested(dir, NULL, 0, OI_LS_PARENT); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 121 | if (status < 0) { |
| 122 | if (status != -ENOENT) |
| 123 | mlog_errno(status); |
| 124 | ret = ERR_PTR(status); |
| 125 | goto bail; |
| 126 | } |
| 127 | |
Mark Fasheh | be94d11 | 2007-09-11 15:22:06 -0700 | [diff] [blame] | 128 | status = ocfs2_lookup_ino_from_name(dir, dentry->d_name.name, |
| 129 | dentry->d_name.len, &blkno); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 130 | if (status < 0) |
| 131 | goto bail_add; |
| 132 | |
Jan Kara | 5fa0613 | 2008-01-11 00:11:45 +0100 | [diff] [blame] | 133 | inode = ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 134 | if (IS_ERR(inode)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 135 | ret = ERR_PTR(-EACCES); |
| 136 | goto bail_unlock; |
| 137 | } |
| 138 | |
| 139 | oi = OCFS2_I(inode); |
| 140 | /* Clear any orphaned state... If we were able to look up the |
| 141 | * inode from a directory, it certainly can't be orphaned. We |
| 142 | * might have the bad state from a node which intended to |
| 143 | * orphan this inode but crashed before it could commit the |
| 144 | * unlink. */ |
| 145 | spin_lock(&oi->ip_lock); |
| 146 | oi->ip_flags &= ~OCFS2_INODE_MAYBE_ORPHANED; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 147 | spin_unlock(&oi->ip_lock); |
| 148 | |
| 149 | bail_add: |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 150 | dentry->d_op = &ocfs2_dentry_ops; |
| 151 | ret = d_splice_alias(inode, dentry); |
| 152 | |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 153 | if (inode) { |
| 154 | /* |
| 155 | * If d_splice_alias() finds a DCACHE_DISCONNECTED |
| 156 | * dentry, it will d_move() it on top of ourse. The |
| 157 | * return value will indicate this however, so in |
| 158 | * those cases, we switch them around for the locking |
| 159 | * code. |
| 160 | * |
| 161 | * NOTE: This dentry already has ->d_op set from |
| 162 | * ocfs2_get_parent() and ocfs2_get_dentry() |
| 163 | */ |
| 164 | if (ret) |
| 165 | dentry = ret; |
| 166 | |
| 167 | status = ocfs2_dentry_attach_lock(dentry, inode, |
Mark Fasheh | 0027dd5 | 2006-09-21 16:51:28 -0700 | [diff] [blame] | 168 | OCFS2_I(dir)->ip_blkno); |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 169 | if (status) { |
| 170 | mlog_errno(status); |
| 171 | ret = ERR_PTR(status); |
| 172 | goto bail_unlock; |
| 173 | } |
| 174 | } |
| 175 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 176 | bail_unlock: |
| 177 | /* Don't drop the cluster lock until *after* the d_add -- |
| 178 | * unlink on another node will message us to remove that |
| 179 | * dentry under this lock so otherwise we can race this with |
Mark Fasheh | 34d024f | 2007-09-24 15:56:19 -0700 | [diff] [blame] | 180 | * the downconvert thread and have a stale dentry. */ |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 181 | ocfs2_inode_unlock(dir, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 182 | |
| 183 | bail: |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 184 | |
| 185 | mlog_exit_ptr(ret); |
| 186 | |
| 187 | return ret; |
| 188 | } |
| 189 | |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 190 | static struct inode *ocfs2_get_init_inode(struct inode *dir, int mode) |
| 191 | { |
| 192 | struct inode *inode; |
| 193 | |
| 194 | inode = new_inode(dir->i_sb); |
| 195 | if (!inode) { |
| 196 | mlog(ML_ERROR, "new_inode failed!\n"); |
| 197 | return NULL; |
| 198 | } |
| 199 | |
| 200 | /* populate as many fields early on as possible - many of |
| 201 | * these are used by the support functions here and in |
| 202 | * callers. */ |
| 203 | if (S_ISDIR(mode)) |
| 204 | inode->i_nlink = 2; |
| 205 | else |
| 206 | inode->i_nlink = 1; |
| 207 | inode->i_uid = current_fsuid(); |
| 208 | if (dir->i_mode & S_ISGID) { |
| 209 | inode->i_gid = dir->i_gid; |
| 210 | if (S_ISDIR(mode)) |
| 211 | mode |= S_ISGID; |
| 212 | } else |
| 213 | inode->i_gid = current_fsgid(); |
| 214 | inode->i_mode = mode; |
Christoph Hellwig | 871a293 | 2010-03-03 09:05:07 -0500 | [diff] [blame] | 215 | dquot_initialize(inode); |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 216 | return inode; |
| 217 | } |
| 218 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 219 | static int ocfs2_mknod(struct inode *dir, |
| 220 | struct dentry *dentry, |
| 221 | int mode, |
| 222 | dev_t dev) |
| 223 | { |
| 224 | int status = 0; |
| 225 | struct buffer_head *parent_fe_bh = NULL; |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 226 | handle_t *handle = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 227 | struct ocfs2_super *osb; |
| 228 | struct ocfs2_dinode *dirfe; |
| 229 | struct buffer_head *new_fe_bh = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 230 | struct inode *inode = NULL; |
| 231 | struct ocfs2_alloc_context *inode_ac = NULL; |
| 232 | struct ocfs2_alloc_context *data_ac = NULL; |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 233 | struct ocfs2_alloc_context *meta_ac = NULL; |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 234 | int want_clusters = 0; |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 235 | int want_meta = 0; |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 236 | int xattr_credits = 0; |
| 237 | struct ocfs2_security_xattr_info si = { |
| 238 | .enable = 1, |
| 239 | }; |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 240 | int did_quota_inode = 0; |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 241 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 242 | |
| 243 | mlog_entry("(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry, mode, |
| 244 | (unsigned long)dev, dentry->d_name.len, |
| 245 | dentry->d_name.name); |
| 246 | |
Christoph Hellwig | 871a293 | 2010-03-03 09:05:07 -0500 | [diff] [blame] | 247 | dquot_initialize(dir); |
Christoph Hellwig | 907f455 | 2010-03-03 09:05:06 -0500 | [diff] [blame] | 248 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 249 | /* get our super block */ |
| 250 | osb = OCFS2_SB(dir->i_sb); |
| 251 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 252 | status = ocfs2_inode_lock(dir, &parent_fe_bh, 1); |
Mark Fasheh | e3a8213 | 2006-10-05 16:04:17 -0700 | [diff] [blame] | 253 | if (status < 0) { |
| 254 | if (status != -ENOENT) |
| 255 | mlog_errno(status); |
| 256 | return status; |
| 257 | } |
| 258 | |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 259 | if (S_ISDIR(mode) && (dir->i_nlink >= ocfs2_link_max(osb))) { |
Mark Fasheh | a663e30 | 2006-08-09 11:45:07 -0700 | [diff] [blame] | 260 | status = -EMLINK; |
| 261 | goto leave; |
| 262 | } |
| 263 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 264 | dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data; |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 265 | if (!ocfs2_read_links_count(dirfe)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 266 | /* can't make a file in a deleted directory. */ |
| 267 | status = -ENOENT; |
| 268 | goto leave; |
| 269 | } |
| 270 | |
| 271 | status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, |
| 272 | dentry->d_name.len); |
| 273 | if (status) |
| 274 | goto leave; |
| 275 | |
| 276 | /* get a spot inside the dir. */ |
| 277 | status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, |
| 278 | dentry->d_name.name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 279 | dentry->d_name.len, &lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 280 | if (status < 0) { |
| 281 | mlog_errno(status); |
| 282 | goto leave; |
| 283 | } |
| 284 | |
| 285 | /* reserve an inode spot */ |
Mark Fasheh | da5cbf2 | 2006-10-06 18:34:35 -0700 | [diff] [blame] | 286 | status = ocfs2_reserve_new_inode(osb, &inode_ac); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 287 | if (status < 0) { |
| 288 | if (status != -ENOSPC) |
| 289 | mlog_errno(status); |
| 290 | goto leave; |
| 291 | } |
| 292 | |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 293 | inode = ocfs2_get_init_inode(dir, mode); |
| 294 | if (!inode) { |
| 295 | status = -ENOMEM; |
| 296 | mlog_errno(status); |
| 297 | goto leave; |
| 298 | } |
| 299 | |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 300 | /* get security xattr */ |
| 301 | status = ocfs2_init_security_get(inode, dir, &si); |
| 302 | if (status) { |
| 303 | if (status == -EOPNOTSUPP) |
| 304 | si.enable = 0; |
| 305 | else { |
| 306 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 307 | goto leave; |
| 308 | } |
| 309 | } |
| 310 | |
Tiger Yang | 89c38bd | 2008-11-14 11:17:41 +0800 | [diff] [blame] | 311 | /* calculate meta data/clusters for setting security and acl xattr */ |
| 312 | status = ocfs2_calc_xattr_init(dir, parent_fe_bh, mode, |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 313 | &si, &want_clusters, |
| 314 | &xattr_credits, &want_meta); |
Tiger Yang | 89c38bd | 2008-11-14 11:17:41 +0800 | [diff] [blame] | 315 | if (status < 0) { |
| 316 | mlog_errno(status); |
| 317 | goto leave; |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | /* Reserve a cluster if creating an extent based directory. */ |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 321 | if (S_ISDIR(mode) && !ocfs2_supports_inline_data(osb)) { |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 322 | want_clusters += 1; |
| 323 | |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 324 | /* Dir indexing requires extra space as well */ |
Mark Fasheh | 4ed8a6b | 2008-11-24 17:02:08 -0800 | [diff] [blame] | 325 | if (ocfs2_supports_indexed_dirs(osb)) |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 326 | want_meta++; |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 327 | } |
| 328 | |
| 329 | status = ocfs2_reserve_new_metadata_blocks(osb, want_meta, &meta_ac); |
| 330 | if (status < 0) { |
| 331 | if (status != -ENOSPC) |
| 332 | mlog_errno(status); |
| 333 | goto leave; |
| 334 | } |
| 335 | |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 336 | status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac); |
| 337 | if (status < 0) { |
| 338 | if (status != -ENOSPC) |
| 339 | mlog_errno(status); |
| 340 | goto leave; |
| 341 | } |
| 342 | |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 343 | handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, |
| 344 | S_ISDIR(mode), |
| 345 | xattr_credits)); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 346 | if (IS_ERR(handle)) { |
| 347 | status = PTR_ERR(handle); |
| 348 | handle = NULL; |
| 349 | mlog_errno(status); |
| 350 | goto leave; |
| 351 | } |
| 352 | |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 353 | status = dquot_alloc_inode(inode); |
| 354 | if (status) |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 355 | goto leave; |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 356 | did_quota_inode = 1; |
| 357 | |
Tao Ma | 19bd341 | 2009-08-18 11:44:10 +0800 | [diff] [blame] | 358 | mlog_entry("(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry, |
| 359 | inode->i_mode, (unsigned long)dev, dentry->d_name.len, |
| 360 | dentry->d_name.name); |
| 361 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 362 | /* do the real work now. */ |
Tao Ma | 19bd341 | 2009-08-18 11:44:10 +0800 | [diff] [blame] | 363 | status = ocfs2_mknod_locked(osb, dir, inode, dev, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 364 | &new_fe_bh, parent_fe_bh, handle, |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 365 | inode_ac); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 366 | if (status < 0) { |
| 367 | mlog_errno(status); |
| 368 | goto leave; |
| 369 | } |
| 370 | |
| 371 | if (S_ISDIR(mode)) { |
| 372 | status = ocfs2_fill_new_dir(osb, handle, dir, inode, |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 373 | new_fe_bh, data_ac, meta_ac); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 374 | if (status < 0) { |
| 375 | mlog_errno(status); |
| 376 | goto leave; |
| 377 | } |
| 378 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 379 | status = ocfs2_journal_access_di(handle, INODE_CACHE(dir), |
| 380 | parent_fe_bh, |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 381 | OCFS2_JOURNAL_ACCESS_WRITE); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 382 | if (status < 0) { |
| 383 | mlog_errno(status); |
| 384 | goto leave; |
| 385 | } |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 386 | ocfs2_add_links_count(dirfe, 1); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 387 | status = ocfs2_journal_dirty(handle, parent_fe_bh); |
| 388 | if (status < 0) { |
| 389 | mlog_errno(status); |
| 390 | goto leave; |
| 391 | } |
Dave Hansen | d8c76e6 | 2006-09-30 23:29:04 -0700 | [diff] [blame] | 392 | inc_nlink(dir); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 393 | } |
| 394 | |
Tiger Yang | 89c38bd | 2008-11-14 11:17:41 +0800 | [diff] [blame] | 395 | status = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh, |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 396 | meta_ac, data_ac); |
Tiger Yang | 89c38bd | 2008-11-14 11:17:41 +0800 | [diff] [blame] | 397 | if (status < 0) { |
| 398 | mlog_errno(status); |
| 399 | goto leave; |
| 400 | } |
| 401 | |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 402 | if (si.enable) { |
| 403 | status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si, |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 404 | meta_ac, data_ac); |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 405 | if (status < 0) { |
| 406 | mlog_errno(status); |
| 407 | goto leave; |
| 408 | } |
| 409 | } |
| 410 | |
Mark Fasheh | a9743fc | 2010-04-23 11:42:22 -0700 | [diff] [blame^] | 411 | /* |
| 412 | * Do this before adding the entry to the directory. We add |
| 413 | * also set d_op after success so that ->d_iput() will cleanup |
| 414 | * the dentry lock even if ocfs2_add_entry() fails below. |
| 415 | */ |
| 416 | status = ocfs2_dentry_attach_lock(dentry, inode, |
| 417 | OCFS2_I(dir)->ip_blkno); |
| 418 | if (status) { |
| 419 | mlog_errno(status); |
| 420 | goto leave; |
| 421 | } |
| 422 | dentry->d_op = &ocfs2_dentry_ops; |
| 423 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 424 | status = ocfs2_add_entry(handle, dentry, inode, |
| 425 | OCFS2_I(inode)->ip_blkno, parent_fe_bh, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 426 | &lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 427 | if (status < 0) { |
| 428 | mlog_errno(status); |
| 429 | goto leave; |
| 430 | } |
| 431 | |
| 432 | insert_inode_hash(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 433 | d_instantiate(dentry, inode); |
| 434 | status = 0; |
| 435 | leave: |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 436 | if (status < 0 && did_quota_inode) |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 437 | dquot_free_inode(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 438 | if (handle) |
Mark Fasheh | 02dc1af | 2006-10-09 16:48:10 -0700 | [diff] [blame] | 439 | ocfs2_commit_trans(osb, handle); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 440 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 441 | ocfs2_inode_unlock(dir, 1); |
Mark Fasheh | e3a8213 | 2006-10-05 16:04:17 -0700 | [diff] [blame] | 442 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 443 | if (status == -ENOSPC) |
| 444 | mlog(0, "Disk is full\n"); |
| 445 | |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 446 | brelse(new_fe_bh); |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 447 | brelse(parent_fe_bh); |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 448 | kfree(si.name); |
| 449 | kfree(si.value); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 450 | |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 451 | ocfs2_free_dir_lookup_result(&lookup); |
| 452 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 453 | if (inode_ac) |
| 454 | ocfs2_free_alloc_context(inode_ac); |
| 455 | |
| 456 | if (data_ac) |
| 457 | ocfs2_free_alloc_context(data_ac); |
| 458 | |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 459 | if (meta_ac) |
| 460 | ocfs2_free_alloc_context(meta_ac); |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 461 | |
Li Dongyang | 062d340 | 2010-04-22 16:11:29 +0800 | [diff] [blame] | 462 | /* |
| 463 | * We should call iput after the i_mutex of the bitmap been |
| 464 | * unlocked in ocfs2_free_alloc_context, or the |
| 465 | * ocfs2_delete_inode will mutex_lock again. |
| 466 | */ |
| 467 | if ((status < 0) && inode) { |
| 468 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; |
| 469 | clear_nlink(inode); |
| 470 | iput(inode); |
| 471 | } |
| 472 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 473 | mlog_exit(status); |
| 474 | |
| 475 | return status; |
| 476 | } |
| 477 | |
| 478 | static int ocfs2_mknod_locked(struct ocfs2_super *osb, |
| 479 | struct inode *dir, |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 480 | struct inode *inode, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 481 | dev_t dev, |
| 482 | struct buffer_head **new_fe_bh, |
| 483 | struct buffer_head *parent_fe_bh, |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 484 | handle_t *handle, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 485 | struct ocfs2_alloc_context *inode_ac) |
| 486 | { |
| 487 | int status = 0; |
| 488 | struct ocfs2_dinode *fe = NULL; |
| 489 | struct ocfs2_extent_list *fel; |
| 490 | u64 fe_blkno = 0; |
| 491 | u16 suballoc_bit; |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 492 | u16 feat; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 493 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 494 | *new_fe_bh = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 495 | |
Tao Ma | 1382115 | 2009-02-25 00:53:23 +0800 | [diff] [blame] | 496 | status = ocfs2_claim_new_inode(osb, handle, dir, parent_fe_bh, |
| 497 | inode_ac, &suballoc_bit, &fe_blkno); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 498 | if (status < 0) { |
| 499 | mlog_errno(status); |
| 500 | goto leave; |
| 501 | } |
| 502 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 503 | /* populate as many fields early on as possible - many of |
| 504 | * these are used by the support functions here and in |
| 505 | * callers. */ |
| 506 | inode->i_ino = ino_from_blkno(osb->sb, fe_blkno); |
| 507 | OCFS2_I(inode)->ip_blkno = fe_blkno; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 508 | spin_lock(&osb->osb_lock); |
| 509 | inode->i_generation = osb->s_next_generation++; |
| 510 | spin_unlock(&osb->osb_lock); |
| 511 | |
| 512 | *new_fe_bh = sb_getblk(osb->sb, fe_blkno); |
| 513 | if (!*new_fe_bh) { |
| 514 | status = -EIO; |
| 515 | mlog_errno(status); |
| 516 | goto leave; |
| 517 | } |
Joel Becker | 8cb471e | 2009-02-10 20:00:41 -0800 | [diff] [blame] | 518 | ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), *new_fe_bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 519 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 520 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), |
| 521 | *new_fe_bh, |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 522 | OCFS2_JOURNAL_ACCESS_CREATE); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 523 | if (status < 0) { |
| 524 | mlog_errno(status); |
| 525 | goto leave; |
| 526 | } |
| 527 | |
| 528 | fe = (struct ocfs2_dinode *) (*new_fe_bh)->b_data; |
| 529 | memset(fe, 0, osb->sb->s_blocksize); |
| 530 | |
| 531 | fe->i_generation = cpu_to_le32(inode->i_generation); |
| 532 | fe->i_fs_generation = cpu_to_le32(osb->fs_generation); |
| 533 | fe->i_blkno = cpu_to_le64(fe_blkno); |
| 534 | fe->i_suballoc_bit = cpu_to_le16(suballoc_bit); |
Tao Ma | 4d0ddb2 | 2008-03-05 16:11:46 +0800 | [diff] [blame] | 535 | fe->i_suballoc_slot = cpu_to_le16(inode_ac->ac_alloc_slot); |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 536 | fe->i_uid = cpu_to_le32(inode->i_uid); |
| 537 | fe->i_gid = cpu_to_le32(inode->i_gid); |
| 538 | fe->i_mode = cpu_to_le16(inode->i_mode); |
| 539 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 540 | fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev)); |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 541 | |
| 542 | ocfs2_set_links_count(fe, inode->i_nlink); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 543 | |
| 544 | fe->i_last_eb_blk = 0; |
| 545 | strcpy(fe->i_signature, OCFS2_INODE_SIGNATURE); |
| 546 | le32_add_cpu(&fe->i_flags, OCFS2_VALID_FL); |
| 547 | fe->i_atime = fe->i_ctime = fe->i_mtime = |
| 548 | cpu_to_le64(CURRENT_TIME.tv_sec); |
| 549 | fe->i_mtime_nsec = fe->i_ctime_nsec = fe->i_atime_nsec = |
| 550 | cpu_to_le32(CURRENT_TIME.tv_nsec); |
| 551 | fe->i_dtime = 0; |
| 552 | |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 553 | /* |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 554 | * If supported, directories start with inline data. If inline |
| 555 | * isn't supported, but indexing is, we start them as indexed. |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 556 | */ |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 557 | feat = le16_to_cpu(fe->i_dyn_features); |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 558 | if (S_ISDIR(inode->i_mode) && ocfs2_supports_inline_data(osb)) { |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 559 | fe->i_dyn_features = cpu_to_le16(feat | OCFS2_INLINE_DATA_FL); |
| 560 | |
Tiger Yang | d9ae49d | 2009-03-05 11:06:15 +0800 | [diff] [blame] | 561 | fe->id2.i_data.id_count = cpu_to_le16( |
| 562 | ocfs2_max_inline_data_with_xattr(osb->sb, fe)); |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 563 | } else { |
| 564 | fel = &fe->id2.i_list; |
| 565 | fel->l_tree_depth = 0; |
| 566 | fel->l_next_free_rec = 0; |
| 567 | fel->l_count = cpu_to_le16(ocfs2_extent_recs_per_inode(osb->sb)); |
| 568 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 569 | |
| 570 | status = ocfs2_journal_dirty(handle, *new_fe_bh); |
| 571 | if (status < 0) { |
| 572 | mlog_errno(status); |
| 573 | goto leave; |
| 574 | } |
| 575 | |
Joel Becker | b657c95 | 2008-11-13 14:49:11 -0800 | [diff] [blame] | 576 | ocfs2_populate_inode(inode, fe, 1); |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 577 | ocfs2_ci_set_new(osb, INODE_CACHE(inode)); |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 578 | if (!ocfs2_mount_local(osb)) { |
| 579 | status = ocfs2_create_new_inode_locks(inode); |
| 580 | if (status < 0) |
| 581 | mlog_errno(status); |
| 582 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 583 | |
| 584 | status = 0; /* error in ocfs2_create_new_inode_locks is not |
| 585 | * critical */ |
| 586 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 587 | leave: |
| 588 | if (status < 0) { |
| 589 | if (*new_fe_bh) { |
| 590 | brelse(*new_fe_bh); |
| 591 | *new_fe_bh = NULL; |
| 592 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 593 | } |
| 594 | |
| 595 | mlog_exit(status); |
| 596 | return status; |
| 597 | } |
| 598 | |
| 599 | static int ocfs2_mkdir(struct inode *dir, |
| 600 | struct dentry *dentry, |
| 601 | int mode) |
| 602 | { |
| 603 | int ret; |
| 604 | |
| 605 | mlog_entry("(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry, mode, |
| 606 | dentry->d_name.len, dentry->d_name.name); |
| 607 | ret = ocfs2_mknod(dir, dentry, mode | S_IFDIR, 0); |
| 608 | mlog_exit(ret); |
| 609 | |
| 610 | return ret; |
| 611 | } |
| 612 | |
| 613 | static int ocfs2_create(struct inode *dir, |
| 614 | struct dentry *dentry, |
| 615 | int mode, |
| 616 | struct nameidata *nd) |
| 617 | { |
| 618 | int ret; |
| 619 | |
| 620 | mlog_entry("(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry, mode, |
| 621 | dentry->d_name.len, dentry->d_name.name); |
| 622 | ret = ocfs2_mknod(dir, dentry, mode | S_IFREG, 0); |
| 623 | mlog_exit(ret); |
| 624 | |
| 625 | return ret; |
| 626 | } |
| 627 | |
| 628 | static int ocfs2_link(struct dentry *old_dentry, |
| 629 | struct inode *dir, |
| 630 | struct dentry *dentry) |
| 631 | { |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 632 | handle_t *handle; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 633 | struct inode *inode = old_dentry->d_inode; |
| 634 | int err; |
| 635 | struct buffer_head *fe_bh = NULL; |
| 636 | struct buffer_head *parent_fe_bh = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 637 | struct ocfs2_dinode *fe = NULL; |
| 638 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 639 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 640 | |
| 641 | mlog_entry("(inode=%lu, old='%.*s' new='%.*s')\n", inode->i_ino, |
| 642 | old_dentry->d_name.len, old_dentry->d_name.name, |
| 643 | dentry->d_name.len, dentry->d_name.name); |
| 644 | |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 645 | if (S_ISDIR(inode->i_mode)) |
| 646 | return -EPERM; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 647 | |
Christoph Hellwig | 871a293 | 2010-03-03 09:05:07 -0500 | [diff] [blame] | 648 | dquot_initialize(dir); |
Christoph Hellwig | 907f455 | 2010-03-03 09:05:06 -0500 | [diff] [blame] | 649 | |
Jan Kara | cb25797 | 2009-06-04 15:26:50 +0200 | [diff] [blame] | 650 | err = ocfs2_inode_lock_nested(dir, &parent_fe_bh, 1, OI_LS_PARENT); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 651 | if (err < 0) { |
| 652 | if (err != -ENOENT) |
| 653 | mlog_errno(err); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 654 | return err; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 655 | } |
| 656 | |
Tiger Yang | 0f62de2 | 2006-08-31 20:39:47 -0700 | [diff] [blame] | 657 | if (!dir->i_nlink) { |
| 658 | err = -ENOENT; |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 659 | goto out; |
Tiger Yang | 0f62de2 | 2006-08-31 20:39:47 -0700 | [diff] [blame] | 660 | } |
| 661 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 662 | err = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, |
| 663 | dentry->d_name.len); |
| 664 | if (err) |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 665 | goto out; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 666 | |
| 667 | err = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, |
| 668 | dentry->d_name.name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 669 | dentry->d_name.len, &lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 670 | if (err < 0) { |
| 671 | mlog_errno(err); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 672 | goto out; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 673 | } |
| 674 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 675 | err = ocfs2_inode_lock(inode, &fe_bh, 1); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 676 | if (err < 0) { |
| 677 | if (err != -ENOENT) |
| 678 | mlog_errno(err); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 679 | goto out; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 680 | } |
| 681 | |
| 682 | fe = (struct ocfs2_dinode *) fe_bh->b_data; |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 683 | if (ocfs2_read_links_count(fe) >= ocfs2_link_max(osb)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 684 | err = -EMLINK; |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 685 | goto out_unlock_inode; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 686 | } |
| 687 | |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 688 | handle = ocfs2_start_trans(osb, ocfs2_link_credits(osb->sb)); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 689 | if (IS_ERR(handle)) { |
| 690 | err = PTR_ERR(handle); |
| 691 | handle = NULL; |
| 692 | mlog_errno(err); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 693 | goto out_unlock_inode; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 694 | } |
| 695 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 696 | err = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 697 | OCFS2_JOURNAL_ACCESS_WRITE); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 698 | if (err < 0) { |
| 699 | mlog_errno(err); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 700 | goto out_commit; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 701 | } |
| 702 | |
Dave Hansen | d8c76e6 | 2006-09-30 23:29:04 -0700 | [diff] [blame] | 703 | inc_nlink(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 704 | inode->i_ctime = CURRENT_TIME; |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 705 | ocfs2_set_links_count(fe, inode->i_nlink); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 706 | fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); |
| 707 | fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); |
| 708 | |
| 709 | err = ocfs2_journal_dirty(handle, fe_bh); |
| 710 | if (err < 0) { |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 711 | ocfs2_add_links_count(fe, -1); |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 712 | drop_nlink(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 713 | mlog_errno(err); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 714 | goto out_commit; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 715 | } |
| 716 | |
| 717 | err = ocfs2_add_entry(handle, dentry, inode, |
| 718 | OCFS2_I(inode)->ip_blkno, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 719 | parent_fe_bh, &lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 720 | if (err) { |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 721 | ocfs2_add_links_count(fe, -1); |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 722 | drop_nlink(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 723 | mlog_errno(err); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 724 | goto out_commit; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 725 | } |
| 726 | |
Mark Fasheh | 0027dd5 | 2006-09-21 16:51:28 -0700 | [diff] [blame] | 727 | err = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 728 | if (err) { |
| 729 | mlog_errno(err); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 730 | goto out_commit; |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 731 | } |
| 732 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 733 | atomic_inc(&inode->i_count); |
| 734 | dentry->d_op = &ocfs2_dentry_ops; |
| 735 | d_instantiate(dentry, inode); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 736 | |
| 737 | out_commit: |
Mark Fasheh | 02dc1af | 2006-10-09 16:48:10 -0700 | [diff] [blame] | 738 | ocfs2_commit_trans(osb, handle); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 739 | out_unlock_inode: |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 740 | ocfs2_inode_unlock(inode, 1); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 741 | |
| 742 | out: |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 743 | ocfs2_inode_unlock(dir, 1); |
Mark Fasheh | 123a964 | 2006-10-05 16:48:23 -0700 | [diff] [blame] | 744 | |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 745 | brelse(fe_bh); |
| 746 | brelse(parent_fe_bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 747 | |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 748 | ocfs2_free_dir_lookup_result(&lookup); |
| 749 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 750 | mlog_exit(err); |
| 751 | |
| 752 | return err; |
| 753 | } |
| 754 | |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 755 | /* |
| 756 | * Takes and drops an exclusive lock on the given dentry. This will |
| 757 | * force other nodes to drop it. |
| 758 | */ |
| 759 | static int ocfs2_remote_dentry_delete(struct dentry *dentry) |
| 760 | { |
| 761 | int ret; |
| 762 | |
| 763 | ret = ocfs2_dentry_lock(dentry, 1); |
| 764 | if (ret) |
| 765 | mlog_errno(ret); |
| 766 | else |
| 767 | ocfs2_dentry_unlock(dentry, 1); |
| 768 | |
| 769 | return ret; |
| 770 | } |
| 771 | |
Mark Fasheh | 17ff785 | 2006-09-30 23:29:05 -0700 | [diff] [blame] | 772 | static inline int inode_is_unlinkable(struct inode *inode) |
| 773 | { |
| 774 | if (S_ISDIR(inode->i_mode)) { |
| 775 | if (inode->i_nlink == 2) |
| 776 | return 1; |
| 777 | return 0; |
| 778 | } |
| 779 | |
| 780 | if (inode->i_nlink == 1) |
| 781 | return 1; |
| 782 | return 0; |
| 783 | } |
| 784 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 785 | static int ocfs2_unlink(struct inode *dir, |
| 786 | struct dentry *dentry) |
| 787 | { |
| 788 | int status; |
Mark Fasheh | 30a4f5e | 2006-10-06 11:49:45 -0700 | [diff] [blame] | 789 | int child_locked = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 790 | struct inode *inode = dentry->d_inode; |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 791 | struct inode *orphan_dir = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 792 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); |
| 793 | u64 blkno; |
| 794 | struct ocfs2_dinode *fe = NULL; |
| 795 | struct buffer_head *fe_bh = NULL; |
| 796 | struct buffer_head *parent_node_bh = NULL; |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 797 | handle_t *handle = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 798 | char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 799 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
| 800 | struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 801 | |
| 802 | mlog_entry("(0x%p, 0x%p, '%.*s')\n", dir, dentry, |
| 803 | dentry->d_name.len, dentry->d_name.name); |
| 804 | |
Christoph Hellwig | 871a293 | 2010-03-03 09:05:07 -0500 | [diff] [blame] | 805 | dquot_initialize(dir); |
Christoph Hellwig | 907f455 | 2010-03-03 09:05:06 -0500 | [diff] [blame] | 806 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 807 | BUG_ON(dentry->d_parent->d_inode != dir); |
| 808 | |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 809 | mlog(0, "ino = %llu\n", (unsigned long long)OCFS2_I(inode)->ip_blkno); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 810 | |
| 811 | if (inode == osb->root_inode) { |
| 812 | mlog(0, "Cannot delete the root directory\n"); |
Mark Fasheh | 30a4f5e | 2006-10-06 11:49:45 -0700 | [diff] [blame] | 813 | return -EPERM; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 814 | } |
| 815 | |
Jan Kara | cb25797 | 2009-06-04 15:26:50 +0200 | [diff] [blame] | 816 | status = ocfs2_inode_lock_nested(dir, &parent_node_bh, 1, |
| 817 | OI_LS_PARENT); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 818 | if (status < 0) { |
| 819 | if (status != -ENOENT) |
| 820 | mlog_errno(status); |
Mark Fasheh | 30a4f5e | 2006-10-06 11:49:45 -0700 | [diff] [blame] | 821 | return status; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 822 | } |
| 823 | |
| 824 | status = ocfs2_find_files_on_disk(dentry->d_name.name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 825 | dentry->d_name.len, &blkno, dir, |
| 826 | &lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 827 | if (status < 0) { |
| 828 | if (status != -ENOENT) |
| 829 | mlog_errno(status); |
| 830 | goto leave; |
| 831 | } |
| 832 | |
| 833 | if (OCFS2_I(inode)->ip_blkno != blkno) { |
| 834 | status = -ENOENT; |
| 835 | |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 836 | mlog(0, "ip_blkno %llu != dirent blkno %llu ip_flags = %x\n", |
| 837 | (unsigned long long)OCFS2_I(inode)->ip_blkno, |
| 838 | (unsigned long long)blkno, OCFS2_I(inode)->ip_flags); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 839 | goto leave; |
| 840 | } |
| 841 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 842 | status = ocfs2_inode_lock(inode, &fe_bh, 1); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 843 | if (status < 0) { |
| 844 | if (status != -ENOENT) |
| 845 | mlog_errno(status); |
| 846 | goto leave; |
| 847 | } |
Mark Fasheh | 30a4f5e | 2006-10-06 11:49:45 -0700 | [diff] [blame] | 848 | child_locked = 1; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 849 | |
| 850 | if (S_ISDIR(inode->i_mode)) { |
Mark Fasheh | b80b549 | 2009-02-18 11:41:38 -0800 | [diff] [blame] | 851 | if (inode->i_nlink != 2 || !ocfs2_empty_dir(inode)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 852 | status = -ENOTEMPTY; |
| 853 | goto leave; |
| 854 | } |
| 855 | } |
| 856 | |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 857 | status = ocfs2_remote_dentry_delete(dentry); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 858 | if (status < 0) { |
Mark Fasheh | 34d024f | 2007-09-24 15:56:19 -0700 | [diff] [blame] | 859 | /* This remote delete should succeed under all normal |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 860 | * circumstances. */ |
| 861 | mlog_errno(status); |
| 862 | goto leave; |
| 863 | } |
| 864 | |
Mark Fasheh | 17ff785 | 2006-09-30 23:29:05 -0700 | [diff] [blame] | 865 | if (inode_is_unlinkable(inode)) { |
Tao Ma | 19bd341 | 2009-08-18 11:44:10 +0800 | [diff] [blame] | 866 | status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, |
| 867 | OCFS2_I(inode)->ip_blkno, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 868 | orphan_name, &orphan_insert); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 869 | if (status < 0) { |
| 870 | mlog_errno(status); |
| 871 | goto leave; |
| 872 | } |
| 873 | } |
| 874 | |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 875 | handle = ocfs2_start_trans(osb, ocfs2_unlink_credits(osb->sb)); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 876 | if (IS_ERR(handle)) { |
| 877 | status = PTR_ERR(handle); |
| 878 | handle = NULL; |
| 879 | mlog_errno(status); |
| 880 | goto leave; |
| 881 | } |
| 882 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 883 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 884 | OCFS2_JOURNAL_ACCESS_WRITE); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 885 | if (status < 0) { |
| 886 | mlog_errno(status); |
| 887 | goto leave; |
| 888 | } |
| 889 | |
| 890 | fe = (struct ocfs2_dinode *) fe_bh->b_data; |
| 891 | |
Mark Fasheh | 17ff785 | 2006-09-30 23:29:05 -0700 | [diff] [blame] | 892 | if (inode_is_unlinkable(inode)) { |
Tristan Ye | 3939fda | 2010-03-19 09:21:09 +0800 | [diff] [blame] | 893 | status = ocfs2_orphan_add(osb, handle, inode, fe_bh, orphan_name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 894 | &orphan_insert, orphan_dir); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 895 | if (status < 0) { |
| 896 | mlog_errno(status); |
| 897 | goto leave; |
| 898 | } |
| 899 | } |
| 900 | |
| 901 | /* delete the name from the parent dir */ |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 902 | status = ocfs2_delete_entry(handle, dir, &lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 903 | if (status < 0) { |
| 904 | mlog_errno(status); |
| 905 | goto leave; |
| 906 | } |
| 907 | |
Mark Fasheh | 17ff785 | 2006-09-30 23:29:05 -0700 | [diff] [blame] | 908 | if (S_ISDIR(inode->i_mode)) |
| 909 | drop_nlink(inode); |
| 910 | drop_nlink(inode); |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 911 | ocfs2_set_links_count(fe, inode->i_nlink); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 912 | |
| 913 | status = ocfs2_journal_dirty(handle, fe_bh); |
| 914 | if (status < 0) { |
| 915 | mlog_errno(status); |
| 916 | goto leave; |
| 917 | } |
| 918 | |
Mark Fasheh | 592282c | 2007-01-02 17:59:40 -0800 | [diff] [blame] | 919 | dir->i_ctime = dir->i_mtime = CURRENT_TIME; |
| 920 | if (S_ISDIR(inode->i_mode)) |
Mark Fasheh | 17ff785 | 2006-09-30 23:29:05 -0700 | [diff] [blame] | 921 | drop_nlink(dir); |
Mark Fasheh | 592282c | 2007-01-02 17:59:40 -0800 | [diff] [blame] | 922 | |
| 923 | status = ocfs2_mark_inode_dirty(handle, dir, parent_node_bh); |
| 924 | if (status < 0) { |
| 925 | mlog_errno(status); |
| 926 | if (S_ISDIR(inode->i_mode)) |
Dave Hansen | d8c76e6 | 2006-09-30 23:29:04 -0700 | [diff] [blame] | 927 | inc_nlink(dir); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 928 | } |
| 929 | |
| 930 | leave: |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 931 | if (handle) |
Mark Fasheh | 02dc1af | 2006-10-09 16:48:10 -0700 | [diff] [blame] | 932 | ocfs2_commit_trans(osb, handle); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 933 | |
Mark Fasheh | 30a4f5e | 2006-10-06 11:49:45 -0700 | [diff] [blame] | 934 | if (child_locked) |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 935 | ocfs2_inode_unlock(inode, 1); |
Mark Fasheh | 30a4f5e | 2006-10-06 11:49:45 -0700 | [diff] [blame] | 936 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 937 | ocfs2_inode_unlock(dir, 1); |
Mark Fasheh | 30a4f5e | 2006-10-06 11:49:45 -0700 | [diff] [blame] | 938 | |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 939 | if (orphan_dir) { |
| 940 | /* This was locked for us in ocfs2_prepare_orphan_dir() */ |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 941 | ocfs2_inode_unlock(orphan_dir, 1); |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 942 | mutex_unlock(&orphan_dir->i_mutex); |
| 943 | iput(orphan_dir); |
| 944 | } |
| 945 | |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 946 | brelse(fe_bh); |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 947 | brelse(parent_node_bh); |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 948 | |
| 949 | ocfs2_free_dir_lookup_result(&orphan_insert); |
| 950 | ocfs2_free_dir_lookup_result(&lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 951 | |
| 952 | mlog_exit(status); |
| 953 | |
| 954 | return status; |
| 955 | } |
| 956 | |
| 957 | /* |
| 958 | * The only place this should be used is rename! |
| 959 | * if they have the same id, then the 1st one is the only one locked. |
| 960 | */ |
| 961 | static int ocfs2_double_lock(struct ocfs2_super *osb, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 962 | struct buffer_head **bh1, |
| 963 | struct inode *inode1, |
| 964 | struct buffer_head **bh2, |
| 965 | struct inode *inode2) |
| 966 | { |
| 967 | int status; |
| 968 | struct ocfs2_inode_info *oi1 = OCFS2_I(inode1); |
| 969 | struct ocfs2_inode_info *oi2 = OCFS2_I(inode2); |
| 970 | struct buffer_head **tmpbh; |
| 971 | struct inode *tmpinode; |
| 972 | |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 973 | mlog_entry("(inode1 = %llu, inode2 = %llu)\n", |
| 974 | (unsigned long long)oi1->ip_blkno, |
| 975 | (unsigned long long)oi2->ip_blkno); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 976 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 977 | if (*bh1) |
| 978 | *bh1 = NULL; |
| 979 | if (*bh2) |
| 980 | *bh2 = NULL; |
| 981 | |
| 982 | /* we always want to lock the one with the lower lockid first. */ |
| 983 | if (oi1->ip_blkno != oi2->ip_blkno) { |
| 984 | if (oi1->ip_blkno < oi2->ip_blkno) { |
| 985 | /* switch id1 and id2 around */ |
| 986 | mlog(0, "switching them around...\n"); |
| 987 | tmpbh = bh2; |
| 988 | bh2 = bh1; |
| 989 | bh1 = tmpbh; |
| 990 | |
| 991 | tmpinode = inode2; |
| 992 | inode2 = inode1; |
| 993 | inode1 = tmpinode; |
| 994 | } |
| 995 | /* lock id2 */ |
Jan Kara | cb25797 | 2009-06-04 15:26:50 +0200 | [diff] [blame] | 996 | status = ocfs2_inode_lock_nested(inode2, bh2, 1, |
| 997 | OI_LS_RENAME1); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 998 | if (status < 0) { |
| 999 | if (status != -ENOENT) |
| 1000 | mlog_errno(status); |
| 1001 | goto bail; |
| 1002 | } |
| 1003 | } |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1004 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1005 | /* lock id1 */ |
Jan Kara | cb25797 | 2009-06-04 15:26:50 +0200 | [diff] [blame] | 1006 | status = ocfs2_inode_lock_nested(inode1, bh1, 1, OI_LS_RENAME2); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1007 | if (status < 0) { |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1008 | /* |
| 1009 | * An error return must mean that no cluster locks |
| 1010 | * were held on function exit. |
| 1011 | */ |
| 1012 | if (oi1->ip_blkno != oi2->ip_blkno) |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1013 | ocfs2_inode_unlock(inode2, 1); |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1014 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1015 | if (status != -ENOENT) |
| 1016 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1017 | } |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1018 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1019 | bail: |
| 1020 | mlog_exit(status); |
| 1021 | return status; |
| 1022 | } |
| 1023 | |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1024 | static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2) |
| 1025 | { |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1026 | ocfs2_inode_unlock(inode1, 1); |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1027 | |
| 1028 | if (inode1 != inode2) |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1029 | ocfs2_inode_unlock(inode2, 1); |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1030 | } |
| 1031 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1032 | static int ocfs2_rename(struct inode *old_dir, |
| 1033 | struct dentry *old_dentry, |
| 1034 | struct inode *new_dir, |
| 1035 | struct dentry *new_dentry) |
| 1036 | { |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1037 | int status = 0, rename_lock = 0, parents_locked = 0, target_exists = 0; |
| 1038 | int old_child_locked = 0, new_child_locked = 0, update_dot_dot = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1039 | struct inode *old_inode = old_dentry->d_inode; |
| 1040 | struct inode *new_inode = new_dentry->d_inode; |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1041 | struct inode *orphan_dir = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1042 | struct ocfs2_dinode *newfe = NULL; |
| 1043 | char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1044 | struct buffer_head *newfe_bh = NULL; |
Mark Fasheh | 592282c | 2007-01-02 17:59:40 -0800 | [diff] [blame] | 1045 | struct buffer_head *old_inode_bh = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1046 | struct ocfs2_super *osb = NULL; |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 1047 | u64 newfe_blkno, old_de_ino; |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 1048 | handle_t *handle = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1049 | struct buffer_head *old_dir_bh = NULL; |
| 1050 | struct buffer_head *new_dir_bh = NULL; |
Mark Fasheh | 592282c | 2007-01-02 17:59:40 -0800 | [diff] [blame] | 1051 | nlink_t old_dir_nlink = old_dir->i_nlink; |
Sunil Mushran | 480214d | 2007-08-06 15:11:56 -0700 | [diff] [blame] | 1052 | struct ocfs2_dinode *old_di; |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1053 | struct ocfs2_dir_lookup_result old_inode_dot_dot_res = { NULL, }; |
| 1054 | struct ocfs2_dir_lookup_result target_lookup_res = { NULL, }; |
| 1055 | struct ocfs2_dir_lookup_result old_entry_lookup = { NULL, }; |
| 1056 | struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; |
| 1057 | struct ocfs2_dir_lookup_result target_insert = { NULL, }; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1058 | |
| 1059 | /* At some point it might be nice to break this function up a |
| 1060 | * bit. */ |
| 1061 | |
| 1062 | mlog_entry("(0x%p, 0x%p, 0x%p, 0x%p, from='%.*s' to='%.*s')\n", |
| 1063 | old_dir, old_dentry, new_dir, new_dentry, |
| 1064 | old_dentry->d_name.len, old_dentry->d_name.name, |
| 1065 | new_dentry->d_name.len, new_dentry->d_name.name); |
| 1066 | |
Christoph Hellwig | 871a293 | 2010-03-03 09:05:07 -0500 | [diff] [blame] | 1067 | dquot_initialize(old_dir); |
| 1068 | dquot_initialize(new_dir); |
Christoph Hellwig | 907f455 | 2010-03-03 09:05:06 -0500 | [diff] [blame] | 1069 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1070 | osb = OCFS2_SB(old_dir->i_sb); |
| 1071 | |
| 1072 | if (new_inode) { |
| 1073 | if (!igrab(new_inode)) |
| 1074 | BUG(); |
| 1075 | } |
| 1076 | |
Uwe Kleine-König | 1b3c371 | 2007-02-17 19:23:03 +0100 | [diff] [blame] | 1077 | /* Assume a directory hierarchy thusly: |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1078 | * a/b/c |
| 1079 | * a/d |
| 1080 | * a,b,c, and d are all directories. |
| 1081 | * |
| 1082 | * from cwd of 'a' on both nodes: |
| 1083 | * node1: mv b/c d |
| 1084 | * node2: mv d b/c |
| 1085 | * |
| 1086 | * And that's why, just like the VFS, we need a file system |
| 1087 | * rename lock. */ |
Jan Kara | 5dabd69 | 2008-02-21 18:00:00 +0100 | [diff] [blame] | 1088 | if (old_dir != new_dir && S_ISDIR(old_inode->i_mode)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1089 | status = ocfs2_rename_lock(osb); |
| 1090 | if (status < 0) { |
| 1091 | mlog_errno(status); |
| 1092 | goto bail; |
| 1093 | } |
| 1094 | rename_lock = 1; |
| 1095 | } |
| 1096 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1097 | /* if old and new are the same, this'll just do one lock. */ |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1098 | status = ocfs2_double_lock(osb, &old_dir_bh, old_dir, |
| 1099 | &new_dir_bh, new_dir); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1100 | if (status < 0) { |
| 1101 | mlog_errno(status); |
| 1102 | goto bail; |
| 1103 | } |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1104 | parents_locked = 1; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1105 | |
| 1106 | /* make sure both dirs have bhs |
| 1107 | * get an extra ref on old_dir_bh if old==new */ |
| 1108 | if (!new_dir_bh) { |
| 1109 | if (old_dir_bh) { |
| 1110 | new_dir_bh = old_dir_bh; |
| 1111 | get_bh(new_dir_bh); |
| 1112 | } else { |
| 1113 | mlog(ML_ERROR, "no old_dir_bh!\n"); |
| 1114 | status = -EIO; |
| 1115 | goto bail; |
| 1116 | } |
| 1117 | } |
| 1118 | |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 1119 | /* |
Mark Fasheh | 592282c | 2007-01-02 17:59:40 -0800 | [diff] [blame] | 1120 | * Aside from allowing a meta data update, the locking here |
Mark Fasheh | 34d024f | 2007-09-24 15:56:19 -0700 | [diff] [blame] | 1121 | * also ensures that the downconvert thread on other nodes |
| 1122 | * won't have to concurrently downconvert the inode and the |
| 1123 | * dentry locks. |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 1124 | */ |
Jan Kara | cb25797 | 2009-06-04 15:26:50 +0200 | [diff] [blame] | 1125 | status = ocfs2_inode_lock_nested(old_inode, &old_inode_bh, 1, |
| 1126 | OI_LS_PARENT); |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 1127 | if (status < 0) { |
| 1128 | if (status != -ENOENT) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1129 | mlog_errno(status); |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 1130 | goto bail; |
| 1131 | } |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1132 | old_child_locked = 1; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1133 | |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 1134 | status = ocfs2_remote_dentry_delete(old_dentry); |
| 1135 | if (status < 0) { |
| 1136 | mlog_errno(status); |
| 1137 | goto bail; |
| 1138 | } |
| 1139 | |
| 1140 | if (S_ISDIR(old_inode->i_mode)) { |
Mark Fasheh | 38760e2 | 2007-09-11 17:21:56 -0700 | [diff] [blame] | 1141 | u64 old_inode_parent; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1142 | |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1143 | update_dot_dot = 1; |
Mark Fasheh | 38760e2 | 2007-09-11 17:21:56 -0700 | [diff] [blame] | 1144 | status = ocfs2_find_files_on_disk("..", 2, &old_inode_parent, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1145 | old_inode, |
| 1146 | &old_inode_dot_dot_res); |
Mark Fasheh | 38760e2 | 2007-09-11 17:21:56 -0700 | [diff] [blame] | 1147 | if (status) { |
| 1148 | status = -EIO; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1149 | goto bail; |
Mark Fasheh | 38760e2 | 2007-09-11 17:21:56 -0700 | [diff] [blame] | 1150 | } |
| 1151 | |
| 1152 | if (old_inode_parent != OCFS2_I(old_dir)->ip_blkno) { |
| 1153 | status = -EIO; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1154 | goto bail; |
Mark Fasheh | 38760e2 | 2007-09-11 17:21:56 -0700 | [diff] [blame] | 1155 | } |
| 1156 | |
| 1157 | if (!new_inode && new_dir != old_dir && |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 1158 | new_dir->i_nlink >= ocfs2_link_max(osb)) { |
Mark Fasheh | 38760e2 | 2007-09-11 17:21:56 -0700 | [diff] [blame] | 1159 | status = -EMLINK; |
| 1160 | goto bail; |
| 1161 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1162 | } |
| 1163 | |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 1164 | status = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name, |
| 1165 | old_dentry->d_name.len, |
| 1166 | &old_de_ino); |
| 1167 | if (status) { |
| 1168 | status = -ENOENT; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1169 | goto bail; |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 1170 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1171 | |
| 1172 | /* |
| 1173 | * Check for inode number is _not_ due to possible IO errors. |
| 1174 | * We might rmdir the source, keep it as pwd of some process |
| 1175 | * and merrily kill the link to whatever was created under the |
| 1176 | * same name. Goodbye sticky bit ;-< |
| 1177 | */ |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 1178 | if (old_de_ino != OCFS2_I(old_inode)->ip_blkno) { |
| 1179 | status = -ENOENT; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1180 | goto bail; |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 1181 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1182 | |
| 1183 | /* check if the target already exists (in which case we need |
| 1184 | * to delete it */ |
| 1185 | status = ocfs2_find_files_on_disk(new_dentry->d_name.name, |
| 1186 | new_dentry->d_name.len, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1187 | &newfe_blkno, new_dir, |
| 1188 | &target_lookup_res); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1189 | /* The only error we allow here is -ENOENT because the new |
| 1190 | * file not existing is perfectly valid. */ |
| 1191 | if ((status < 0) && (status != -ENOENT)) { |
| 1192 | /* If we cannot find the file specified we should just */ |
| 1193 | /* return the error... */ |
| 1194 | mlog_errno(status); |
| 1195 | goto bail; |
| 1196 | } |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1197 | if (status == 0) |
| 1198 | target_exists = 1; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1199 | |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1200 | if (!target_exists && new_inode) { |
Srinivas Eeda | e325a88 | 2007-10-31 16:49:43 -0700 | [diff] [blame] | 1201 | /* |
| 1202 | * Target was unlinked by another node while we were |
| 1203 | * waiting to get to ocfs2_rename(). There isn't |
| 1204 | * anything we can do here to help the situation, so |
| 1205 | * bubble up the appropriate error. |
| 1206 | */ |
| 1207 | status = -ENOENT; |
| 1208 | goto bail; |
| 1209 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1210 | |
| 1211 | /* In case we need to overwrite an existing file, we blow it |
| 1212 | * away first */ |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1213 | if (target_exists) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1214 | /* VFS didn't think there existed an inode here, but |
| 1215 | * someone else in the cluster must have raced our |
| 1216 | * rename to create one. Today we error cleanly, in |
| 1217 | * the future we should consider calling iget to build |
| 1218 | * a new struct inode for this entry. */ |
| 1219 | if (!new_inode) { |
| 1220 | status = -EACCES; |
| 1221 | |
| 1222 | mlog(0, "We found an inode for name %.*s but VFS " |
| 1223 | "didn't give us one.\n", new_dentry->d_name.len, |
| 1224 | new_dentry->d_name.name); |
| 1225 | goto bail; |
| 1226 | } |
| 1227 | |
| 1228 | if (OCFS2_I(new_inode)->ip_blkno != newfe_blkno) { |
| 1229 | status = -EACCES; |
| 1230 | |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 1231 | mlog(0, "Inode %llu and dir %llu disagree. flags = %x\n", |
| 1232 | (unsigned long long)OCFS2_I(new_inode)->ip_blkno, |
| 1233 | (unsigned long long)newfe_blkno, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1234 | OCFS2_I(new_inode)->ip_flags); |
| 1235 | goto bail; |
| 1236 | } |
| 1237 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1238 | status = ocfs2_inode_lock(new_inode, &newfe_bh, 1); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1239 | if (status < 0) { |
| 1240 | if (status != -ENOENT) |
| 1241 | mlog_errno(status); |
| 1242 | goto bail; |
| 1243 | } |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1244 | new_child_locked = 1; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1245 | |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 1246 | status = ocfs2_remote_dentry_delete(new_dentry); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1247 | if (status < 0) { |
| 1248 | mlog_errno(status); |
| 1249 | goto bail; |
| 1250 | } |
| 1251 | |
| 1252 | newfe = (struct ocfs2_dinode *) newfe_bh->b_data; |
| 1253 | |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1254 | mlog(0, "aha rename over existing... new_blkno=%llu " |
| 1255 | "newfebh=%p bhblocknr=%llu\n", |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 1256 | (unsigned long long)newfe_blkno, newfe_bh, newfe_bh ? |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1257 | (unsigned long long)newfe_bh->b_blocknr : 0ULL); |
| 1258 | |
| 1259 | if (S_ISDIR(new_inode->i_mode) || (new_inode->i_nlink == 1)) { |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1260 | status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, |
Tao Ma | 19bd341 | 2009-08-18 11:44:10 +0800 | [diff] [blame] | 1261 | OCFS2_I(new_inode)->ip_blkno, |
| 1262 | orphan_name, &orphan_insert); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1263 | if (status < 0) { |
| 1264 | mlog_errno(status); |
| 1265 | goto bail; |
| 1266 | } |
| 1267 | } |
| 1268 | } else { |
| 1269 | BUG_ON(new_dentry->d_parent->d_inode != new_dir); |
| 1270 | |
| 1271 | status = ocfs2_check_dir_for_entry(new_dir, |
| 1272 | new_dentry->d_name.name, |
| 1273 | new_dentry->d_name.len); |
| 1274 | if (status) |
| 1275 | goto bail; |
| 1276 | |
| 1277 | status = ocfs2_prepare_dir_for_insert(osb, new_dir, new_dir_bh, |
| 1278 | new_dentry->d_name.name, |
| 1279 | new_dentry->d_name.len, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1280 | &target_insert); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1281 | if (status < 0) { |
| 1282 | mlog_errno(status); |
| 1283 | goto bail; |
| 1284 | } |
| 1285 | } |
| 1286 | |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 1287 | handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb)); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1288 | if (IS_ERR(handle)) { |
| 1289 | status = PTR_ERR(handle); |
| 1290 | handle = NULL; |
| 1291 | mlog_errno(status); |
| 1292 | goto bail; |
| 1293 | } |
| 1294 | |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1295 | if (target_exists) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1296 | if (S_ISDIR(new_inode->i_mode)) { |
Mark Fasheh | b80b549 | 2009-02-18 11:41:38 -0800 | [diff] [blame] | 1297 | if (new_inode->i_nlink != 2 || |
| 1298 | !ocfs2_empty_dir(new_inode)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1299 | status = -ENOTEMPTY; |
| 1300 | goto bail; |
| 1301 | } |
| 1302 | } |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 1303 | status = ocfs2_journal_access_di(handle, INODE_CACHE(new_inode), |
| 1304 | newfe_bh, |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 1305 | OCFS2_JOURNAL_ACCESS_WRITE); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1306 | if (status < 0) { |
| 1307 | mlog_errno(status); |
| 1308 | goto bail; |
| 1309 | } |
| 1310 | |
| 1311 | if (S_ISDIR(new_inode->i_mode) || |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 1312 | (ocfs2_read_links_count(newfe) == 1)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1313 | status = ocfs2_orphan_add(osb, handle, new_inode, |
Tristan Ye | 3939fda | 2010-03-19 09:21:09 +0800 | [diff] [blame] | 1314 | newfe_bh, orphan_name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1315 | &orphan_insert, orphan_dir); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1316 | if (status < 0) { |
| 1317 | mlog_errno(status); |
| 1318 | goto bail; |
| 1319 | } |
| 1320 | } |
| 1321 | |
| 1322 | /* change the dirent to point to the correct inode */ |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1323 | status = ocfs2_update_entry(new_dir, handle, &target_lookup_res, |
| 1324 | old_inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1325 | if (status < 0) { |
| 1326 | mlog_errno(status); |
| 1327 | goto bail; |
| 1328 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1329 | new_dir->i_version++; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1330 | |
| 1331 | if (S_ISDIR(new_inode->i_mode)) |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 1332 | ocfs2_set_links_count(newfe, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1333 | else |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 1334 | ocfs2_add_links_count(newfe, -1); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1335 | |
| 1336 | status = ocfs2_journal_dirty(handle, newfe_bh); |
| 1337 | if (status < 0) { |
| 1338 | mlog_errno(status); |
| 1339 | goto bail; |
| 1340 | } |
| 1341 | } else { |
| 1342 | /* if the name was not found in new_dir, add it now */ |
| 1343 | status = ocfs2_add_entry(handle, new_dentry, old_inode, |
| 1344 | OCFS2_I(old_inode)->ip_blkno, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1345 | new_dir_bh, &target_insert); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1346 | } |
| 1347 | |
| 1348 | old_inode->i_ctime = CURRENT_TIME; |
| 1349 | mark_inode_dirty(old_inode); |
Sunil Mushran | 480214d | 2007-08-06 15:11:56 -0700 | [diff] [blame] | 1350 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 1351 | status = ocfs2_journal_access_di(handle, INODE_CACHE(old_inode), |
| 1352 | old_inode_bh, |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 1353 | OCFS2_JOURNAL_ACCESS_WRITE); |
Sunil Mushran | 480214d | 2007-08-06 15:11:56 -0700 | [diff] [blame] | 1354 | if (status >= 0) { |
| 1355 | old_di = (struct ocfs2_dinode *) old_inode_bh->b_data; |
| 1356 | |
| 1357 | old_di->i_ctime = cpu_to_le64(old_inode->i_ctime.tv_sec); |
| 1358 | old_di->i_ctime_nsec = cpu_to_le32(old_inode->i_ctime.tv_nsec); |
| 1359 | |
| 1360 | status = ocfs2_journal_dirty(handle, old_inode_bh); |
| 1361 | if (status < 0) |
| 1362 | mlog_errno(status); |
| 1363 | } else |
| 1364 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1365 | |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 1366 | /* |
| 1367 | * Now that the name has been added to new_dir, remove the old name. |
| 1368 | * |
| 1369 | * We don't keep any directory entry context around until now |
| 1370 | * because the insert might have changed the type of directory |
| 1371 | * we're dealing with. |
| 1372 | */ |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1373 | status = ocfs2_find_entry(old_dentry->d_name.name, |
| 1374 | old_dentry->d_name.len, old_dir, |
| 1375 | &old_entry_lookup); |
| 1376 | if (status) |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 1377 | goto bail; |
Mark Fasheh | 5b6a3a2 | 2007-09-13 16:33:54 -0700 | [diff] [blame] | 1378 | |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1379 | status = ocfs2_delete_entry(handle, old_dir, &old_entry_lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1380 | if (status < 0) { |
| 1381 | mlog_errno(status); |
| 1382 | goto bail; |
| 1383 | } |
| 1384 | |
| 1385 | if (new_inode) { |
| 1386 | new_inode->i_nlink--; |
| 1387 | new_inode->i_ctime = CURRENT_TIME; |
| 1388 | } |
| 1389 | old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME; |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1390 | |
| 1391 | if (update_dot_dot) { |
| 1392 | status = ocfs2_update_entry(old_inode, handle, |
| 1393 | &old_inode_dot_dot_res, new_dir); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1394 | old_dir->i_nlink--; |
| 1395 | if (new_inode) { |
| 1396 | new_inode->i_nlink--; |
| 1397 | } else { |
Dave Hansen | d8c76e6 | 2006-09-30 23:29:04 -0700 | [diff] [blame] | 1398 | inc_nlink(new_dir); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1399 | mark_inode_dirty(new_dir); |
| 1400 | } |
| 1401 | } |
| 1402 | mark_inode_dirty(old_dir); |
Mark Fasheh | 592282c | 2007-01-02 17:59:40 -0800 | [diff] [blame] | 1403 | ocfs2_mark_inode_dirty(handle, old_dir, old_dir_bh); |
| 1404 | if (new_inode) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1405 | mark_inode_dirty(new_inode); |
Mark Fasheh | 592282c | 2007-01-02 17:59:40 -0800 | [diff] [blame] | 1406 | ocfs2_mark_inode_dirty(handle, new_inode, newfe_bh); |
| 1407 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1408 | |
Mark Fasheh | 592282c | 2007-01-02 17:59:40 -0800 | [diff] [blame] | 1409 | if (old_dir != new_dir) { |
| 1410 | /* Keep the same times on both directories.*/ |
| 1411 | new_dir->i_ctime = new_dir->i_mtime = old_dir->i_ctime; |
| 1412 | |
| 1413 | /* |
| 1414 | * This will also pick up the i_nlink change from the |
| 1415 | * block above. |
| 1416 | */ |
| 1417 | ocfs2_mark_inode_dirty(handle, new_dir, new_dir_bh); |
| 1418 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1419 | |
| 1420 | if (old_dir_nlink != old_dir->i_nlink) { |
| 1421 | if (!old_dir_bh) { |
| 1422 | mlog(ML_ERROR, "need to change nlink for old dir " |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 1423 | "%llu from %d to %d but bh is NULL!\n", |
| 1424 | (unsigned long long)OCFS2_I(old_dir)->ip_blkno, |
| 1425 | (int)old_dir_nlink, old_dir->i_nlink); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1426 | } else { |
| 1427 | struct ocfs2_dinode *fe; |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 1428 | status = ocfs2_journal_access_di(handle, |
| 1429 | INODE_CACHE(old_dir), |
| 1430 | old_dir_bh, |
| 1431 | OCFS2_JOURNAL_ACCESS_WRITE); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1432 | fe = (struct ocfs2_dinode *) old_dir_bh->b_data; |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 1433 | ocfs2_set_links_count(fe, old_dir->i_nlink); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1434 | status = ocfs2_journal_dirty(handle, old_dir_bh); |
| 1435 | } |
| 1436 | } |
Mark Fasheh | 379dfe9 | 2006-09-08 14:21:03 -0700 | [diff] [blame] | 1437 | ocfs2_dentry_move(old_dentry, new_dentry, old_dir, new_dir); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1438 | status = 0; |
| 1439 | bail: |
| 1440 | if (rename_lock) |
| 1441 | ocfs2_rename_unlock(osb); |
| 1442 | |
| 1443 | if (handle) |
Mark Fasheh | 02dc1af | 2006-10-09 16:48:10 -0700 | [diff] [blame] | 1444 | ocfs2_commit_trans(osb, handle); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1445 | |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1446 | if (parents_locked) |
| 1447 | ocfs2_double_unlock(old_dir, new_dir); |
| 1448 | |
| 1449 | if (old_child_locked) |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1450 | ocfs2_inode_unlock(old_inode, 1); |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1451 | |
| 1452 | if (new_child_locked) |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1453 | ocfs2_inode_unlock(new_inode, 1); |
Mark Fasheh | 8d5596c | 2006-10-06 15:04:51 -0700 | [diff] [blame] | 1454 | |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1455 | if (orphan_dir) { |
| 1456 | /* This was locked for us in ocfs2_prepare_orphan_dir() */ |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1457 | ocfs2_inode_unlock(orphan_dir, 1); |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1458 | mutex_unlock(&orphan_dir->i_mutex); |
| 1459 | iput(orphan_dir); |
| 1460 | } |
| 1461 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1462 | if (new_inode) |
| 1463 | sync_mapping_buffers(old_inode->i_mapping); |
| 1464 | |
| 1465 | if (new_inode) |
| 1466 | iput(new_inode); |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1467 | |
| 1468 | ocfs2_free_dir_lookup_result(&target_lookup_res); |
| 1469 | ocfs2_free_dir_lookup_result(&old_entry_lookup); |
| 1470 | ocfs2_free_dir_lookup_result(&old_inode_dot_dot_res); |
| 1471 | ocfs2_free_dir_lookup_result(&orphan_insert); |
| 1472 | ocfs2_free_dir_lookup_result(&target_insert); |
| 1473 | |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 1474 | brelse(newfe_bh); |
| 1475 | brelse(old_inode_bh); |
| 1476 | brelse(old_dir_bh); |
| 1477 | brelse(new_dir_bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1478 | |
| 1479 | mlog_exit(status); |
| 1480 | |
| 1481 | return status; |
| 1482 | } |
| 1483 | |
| 1484 | /* |
| 1485 | * we expect i_size = strlen(symname). Copy symname into the file |
| 1486 | * data, including the null terminator. |
| 1487 | */ |
| 1488 | static int ocfs2_create_symlink_data(struct ocfs2_super *osb, |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 1489 | handle_t *handle, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1490 | struct inode *inode, |
| 1491 | const char *symname) |
| 1492 | { |
| 1493 | struct buffer_head **bhs = NULL; |
| 1494 | const char *c; |
| 1495 | struct super_block *sb = osb->sb; |
Mark Fasheh | 4f902c3 | 2007-03-09 16:26:50 -0800 | [diff] [blame] | 1496 | u64 p_blkno, p_blocks; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1497 | int virtual, blocks, status, i, bytes_left; |
| 1498 | |
| 1499 | bytes_left = i_size_read(inode) + 1; |
| 1500 | /* we can't trust i_blocks because we're actually going to |
| 1501 | * write i_size + 1 bytes. */ |
| 1502 | blocks = (bytes_left + sb->s_blocksize - 1) >> sb->s_blocksize_bits; |
| 1503 | |
Andrew Morton | 5515eff | 2006-03-26 01:37:53 -0800 | [diff] [blame] | 1504 | mlog_entry("i_blocks = %llu, i_size = %llu, blocks = %d\n", |
| 1505 | (unsigned long long)inode->i_blocks, |
| 1506 | i_size_read(inode), blocks); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1507 | |
| 1508 | /* Sanity check -- make sure we're going to fit. */ |
| 1509 | if (bytes_left > |
| 1510 | ocfs2_clusters_to_bytes(sb, OCFS2_I(inode)->ip_clusters)) { |
| 1511 | status = -EIO; |
| 1512 | mlog_errno(status); |
| 1513 | goto bail; |
| 1514 | } |
| 1515 | |
| 1516 | bhs = kcalloc(blocks, sizeof(struct buffer_head *), GFP_KERNEL); |
| 1517 | if (!bhs) { |
| 1518 | status = -ENOMEM; |
| 1519 | mlog_errno(status); |
| 1520 | goto bail; |
| 1521 | } |
| 1522 | |
Mark Fasheh | 49cb8d2 | 2007-03-09 16:21:46 -0800 | [diff] [blame] | 1523 | status = ocfs2_extent_map_get_blocks(inode, 0, &p_blkno, &p_blocks, |
| 1524 | NULL); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1525 | if (status < 0) { |
| 1526 | mlog_errno(status); |
| 1527 | goto bail; |
| 1528 | } |
| 1529 | |
| 1530 | /* links can never be larger than one cluster so we know this |
| 1531 | * is all going to be contiguous, but do a sanity check |
| 1532 | * anyway. */ |
| 1533 | if ((p_blocks << sb->s_blocksize_bits) < bytes_left) { |
| 1534 | status = -EIO; |
| 1535 | mlog_errno(status); |
| 1536 | goto bail; |
| 1537 | } |
| 1538 | |
| 1539 | virtual = 0; |
| 1540 | while(bytes_left > 0) { |
| 1541 | c = &symname[virtual * sb->s_blocksize]; |
| 1542 | |
| 1543 | bhs[virtual] = sb_getblk(sb, p_blkno); |
| 1544 | if (!bhs[virtual]) { |
| 1545 | status = -ENOMEM; |
| 1546 | mlog_errno(status); |
| 1547 | goto bail; |
| 1548 | } |
Joel Becker | 8cb471e | 2009-02-10 20:00:41 -0800 | [diff] [blame] | 1549 | ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), |
| 1550 | bhs[virtual]); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1551 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 1552 | status = ocfs2_journal_access(handle, INODE_CACHE(inode), |
| 1553 | bhs[virtual], |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1554 | OCFS2_JOURNAL_ACCESS_CREATE); |
| 1555 | if (status < 0) { |
| 1556 | mlog_errno(status); |
| 1557 | goto bail; |
| 1558 | } |
| 1559 | |
| 1560 | memset(bhs[virtual]->b_data, 0, sb->s_blocksize); |
| 1561 | |
| 1562 | memcpy(bhs[virtual]->b_data, c, |
| 1563 | (bytes_left > sb->s_blocksize) ? sb->s_blocksize : |
| 1564 | bytes_left); |
| 1565 | |
| 1566 | status = ocfs2_journal_dirty(handle, bhs[virtual]); |
| 1567 | if (status < 0) { |
| 1568 | mlog_errno(status); |
| 1569 | goto bail; |
| 1570 | } |
| 1571 | |
| 1572 | virtual++; |
| 1573 | p_blkno++; |
| 1574 | bytes_left -= sb->s_blocksize; |
| 1575 | } |
| 1576 | |
| 1577 | status = 0; |
| 1578 | bail: |
| 1579 | |
| 1580 | if (bhs) { |
| 1581 | for(i = 0; i < blocks; i++) |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 1582 | brelse(bhs[i]); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1583 | kfree(bhs); |
| 1584 | } |
| 1585 | |
| 1586 | mlog_exit(status); |
| 1587 | return status; |
| 1588 | } |
| 1589 | |
| 1590 | static int ocfs2_symlink(struct inode *dir, |
| 1591 | struct dentry *dentry, |
| 1592 | const char *symname) |
| 1593 | { |
| 1594 | int status, l, credits; |
| 1595 | u64 newsize; |
| 1596 | struct ocfs2_super *osb = NULL; |
| 1597 | struct inode *inode = NULL; |
| 1598 | struct super_block *sb; |
| 1599 | struct buffer_head *new_fe_bh = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1600 | struct buffer_head *parent_fe_bh = NULL; |
| 1601 | struct ocfs2_dinode *fe = NULL; |
| 1602 | struct ocfs2_dinode *dirfe; |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 1603 | handle_t *handle = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1604 | struct ocfs2_alloc_context *inode_ac = NULL; |
| 1605 | struct ocfs2_alloc_context *data_ac = NULL; |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 1606 | struct ocfs2_alloc_context *xattr_ac = NULL; |
| 1607 | int want_clusters = 0; |
| 1608 | int xattr_credits = 0; |
| 1609 | struct ocfs2_security_xattr_info si = { |
| 1610 | .enable = 1, |
| 1611 | }; |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 1612 | int did_quota = 0, did_quota_inode = 0; |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1613 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1614 | |
| 1615 | mlog_entry("(0x%p, 0x%p, symname='%s' actual='%.*s')\n", dir, |
| 1616 | dentry, symname, dentry->d_name.len, dentry->d_name.name); |
| 1617 | |
Christoph Hellwig | 871a293 | 2010-03-03 09:05:07 -0500 | [diff] [blame] | 1618 | dquot_initialize(dir); |
Christoph Hellwig | 907f455 | 2010-03-03 09:05:06 -0500 | [diff] [blame] | 1619 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1620 | sb = dir->i_sb; |
| 1621 | osb = OCFS2_SB(sb); |
| 1622 | |
| 1623 | l = strlen(symname) + 1; |
| 1624 | |
| 1625 | credits = ocfs2_calc_symlink_credits(sb); |
| 1626 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1627 | /* lock the parent directory */ |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1628 | status = ocfs2_inode_lock(dir, &parent_fe_bh, 1); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1629 | if (status < 0) { |
| 1630 | if (status != -ENOENT) |
| 1631 | mlog_errno(status); |
Mark Fasheh | 6d8fc40 | 2006-10-06 11:54:33 -0700 | [diff] [blame] | 1632 | return status; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1633 | } |
| 1634 | |
| 1635 | dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data; |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 1636 | if (!ocfs2_read_links_count(dirfe)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1637 | /* can't make a file in a deleted directory. */ |
| 1638 | status = -ENOENT; |
| 1639 | goto bail; |
| 1640 | } |
| 1641 | |
| 1642 | status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, |
| 1643 | dentry->d_name.len); |
| 1644 | if (status) |
| 1645 | goto bail; |
| 1646 | |
| 1647 | status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, |
| 1648 | dentry->d_name.name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1649 | dentry->d_name.len, &lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1650 | if (status < 0) { |
| 1651 | mlog_errno(status); |
| 1652 | goto bail; |
| 1653 | } |
| 1654 | |
Mark Fasheh | da5cbf2 | 2006-10-06 18:34:35 -0700 | [diff] [blame] | 1655 | status = ocfs2_reserve_new_inode(osb, &inode_ac); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1656 | if (status < 0) { |
| 1657 | if (status != -ENOSPC) |
| 1658 | mlog_errno(status); |
| 1659 | goto bail; |
| 1660 | } |
| 1661 | |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 1662 | inode = ocfs2_get_init_inode(dir, S_IFLNK | S_IRWXUGO); |
| 1663 | if (!inode) { |
| 1664 | status = -ENOMEM; |
| 1665 | mlog_errno(status); |
| 1666 | goto bail; |
| 1667 | } |
| 1668 | |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 1669 | /* get security xattr */ |
| 1670 | status = ocfs2_init_security_get(inode, dir, &si); |
| 1671 | if (status) { |
| 1672 | if (status == -EOPNOTSUPP) |
| 1673 | si.enable = 0; |
| 1674 | else { |
| 1675 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1676 | goto bail; |
| 1677 | } |
| 1678 | } |
| 1679 | |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 1680 | /* calculate meta data/clusters for setting security xattr */ |
| 1681 | if (si.enable) { |
| 1682 | status = ocfs2_calc_security_init(dir, &si, &want_clusters, |
| 1683 | &xattr_credits, &xattr_ac); |
| 1684 | if (status < 0) { |
| 1685 | mlog_errno(status); |
| 1686 | goto bail; |
| 1687 | } |
| 1688 | } |
| 1689 | |
| 1690 | /* don't reserve bitmap space for fast symlinks. */ |
| 1691 | if (l > ocfs2_fast_symlink_chars(sb)) |
| 1692 | want_clusters += 1; |
| 1693 | |
| 1694 | status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac); |
| 1695 | if (status < 0) { |
| 1696 | if (status != -ENOSPC) |
| 1697 | mlog_errno(status); |
| 1698 | goto bail; |
| 1699 | } |
| 1700 | |
| 1701 | handle = ocfs2_start_trans(osb, credits + xattr_credits); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1702 | if (IS_ERR(handle)) { |
| 1703 | status = PTR_ERR(handle); |
| 1704 | handle = NULL; |
| 1705 | mlog_errno(status); |
| 1706 | goto bail; |
| 1707 | } |
| 1708 | |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 1709 | status = dquot_alloc_inode(inode); |
| 1710 | if (status) |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 1711 | goto bail; |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 1712 | did_quota_inode = 1; |
| 1713 | |
Tao Ma | 19bd341 | 2009-08-18 11:44:10 +0800 | [diff] [blame] | 1714 | mlog_entry("(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry, |
| 1715 | inode->i_mode, dentry->d_name.len, |
| 1716 | dentry->d_name.name); |
| 1717 | |
| 1718 | status = ocfs2_mknod_locked(osb, dir, inode, |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 1719 | 0, &new_fe_bh, parent_fe_bh, handle, |
| 1720 | inode_ac); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1721 | if (status < 0) { |
| 1722 | mlog_errno(status); |
| 1723 | goto bail; |
| 1724 | } |
| 1725 | |
| 1726 | fe = (struct ocfs2_dinode *) new_fe_bh->b_data; |
| 1727 | inode->i_rdev = 0; |
| 1728 | newsize = l - 1; |
| 1729 | if (l > ocfs2_fast_symlink_chars(sb)) { |
Mark Fasheh | dcd0538 | 2007-01-16 11:32:23 -0800 | [diff] [blame] | 1730 | u32 offset = 0; |
| 1731 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1732 | inode->i_op = &ocfs2_symlink_inode_operations; |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 1733 | status = dquot_alloc_space_nodirty(inode, |
| 1734 | ocfs2_clusters_to_bytes(osb->sb, 1)); |
| 1735 | if (status) |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 1736 | goto bail; |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 1737 | did_quota = 1; |
Tao Ma | 0eb8d47 | 2008-08-18 17:38:45 +0800 | [diff] [blame] | 1738 | status = ocfs2_add_inode_data(osb, inode, &offset, 1, 0, |
| 1739 | new_fe_bh, |
| 1740 | handle, data_ac, NULL, |
| 1741 | NULL); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1742 | if (status < 0) { |
| 1743 | if (status != -ENOSPC && status != -EINTR) { |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 1744 | mlog(ML_ERROR, |
| 1745 | "Failed to extend file to %llu\n", |
| 1746 | (unsigned long long)newsize); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1747 | mlog_errno(status); |
| 1748 | status = -ENOSPC; |
| 1749 | } |
| 1750 | goto bail; |
| 1751 | } |
| 1752 | i_size_write(inode, newsize); |
Mark Fasheh | 8110b07 | 2007-03-22 16:53:23 -0700 | [diff] [blame] | 1753 | inode->i_blocks = ocfs2_inode_sector_count(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1754 | } else { |
| 1755 | inode->i_op = &ocfs2_fast_symlink_inode_operations; |
| 1756 | memcpy((char *) fe->id2.i_symlink, symname, l); |
| 1757 | i_size_write(inode, newsize); |
| 1758 | inode->i_blocks = 0; |
| 1759 | } |
| 1760 | |
| 1761 | status = ocfs2_mark_inode_dirty(handle, inode, new_fe_bh); |
| 1762 | if (status < 0) { |
| 1763 | mlog_errno(status); |
| 1764 | goto bail; |
| 1765 | } |
| 1766 | |
| 1767 | if (!ocfs2_inode_is_fast_symlink(inode)) { |
| 1768 | status = ocfs2_create_symlink_data(osb, handle, inode, |
| 1769 | symname); |
| 1770 | if (status < 0) { |
| 1771 | mlog_errno(status); |
| 1772 | goto bail; |
| 1773 | } |
| 1774 | } |
| 1775 | |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 1776 | if (si.enable) { |
| 1777 | status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si, |
| 1778 | xattr_ac, data_ac); |
| 1779 | if (status < 0) { |
| 1780 | mlog_errno(status); |
| 1781 | goto bail; |
| 1782 | } |
| 1783 | } |
| 1784 | |
Mark Fasheh | a9743fc | 2010-04-23 11:42:22 -0700 | [diff] [blame^] | 1785 | /* |
| 1786 | * Do this before adding the entry to the directory. We add |
| 1787 | * also set d_op after success so that ->d_iput() will cleanup |
| 1788 | * the dentry lock even if ocfs2_add_entry() fails below. |
| 1789 | */ |
| 1790 | status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); |
| 1791 | if (status) { |
| 1792 | mlog_errno(status); |
| 1793 | goto bail; |
| 1794 | } |
| 1795 | dentry->d_op = &ocfs2_dentry_ops; |
| 1796 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1797 | status = ocfs2_add_entry(handle, dentry, inode, |
| 1798 | le64_to_cpu(fe->i_blkno), parent_fe_bh, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1799 | &lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1800 | if (status < 0) { |
| 1801 | mlog_errno(status); |
| 1802 | goto bail; |
| 1803 | } |
| 1804 | |
| 1805 | insert_inode_hash(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1806 | d_instantiate(dentry, inode); |
| 1807 | bail: |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 1808 | if (status < 0 && did_quota) |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 1809 | dquot_free_space_nodirty(inode, |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 1810 | ocfs2_clusters_to_bytes(osb->sb, 1)); |
| 1811 | if (status < 0 && did_quota_inode) |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 1812 | dquot_free_inode(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1813 | if (handle) |
Mark Fasheh | 02dc1af | 2006-10-09 16:48:10 -0700 | [diff] [blame] | 1814 | ocfs2_commit_trans(osb, handle); |
Mark Fasheh | 6d8fc40 | 2006-10-06 11:54:33 -0700 | [diff] [blame] | 1815 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1816 | ocfs2_inode_unlock(dir, 1); |
Mark Fasheh | 6d8fc40 | 2006-10-06 11:54:33 -0700 | [diff] [blame] | 1817 | |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 1818 | brelse(new_fe_bh); |
| 1819 | brelse(parent_fe_bh); |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 1820 | kfree(si.name); |
| 1821 | kfree(si.value); |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1822 | ocfs2_free_dir_lookup_result(&lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1823 | if (inode_ac) |
| 1824 | ocfs2_free_alloc_context(inode_ac); |
| 1825 | if (data_ac) |
| 1826 | ocfs2_free_alloc_context(data_ac); |
Tiger Yang | 534eadd | 2008-11-14 11:16:41 +0800 | [diff] [blame] | 1827 | if (xattr_ac) |
| 1828 | ocfs2_free_alloc_context(xattr_ac); |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 1829 | if ((status < 0) && inode) { |
Li Dongyang | ab41fdc | 2010-04-22 16:11:25 +0800 | [diff] [blame] | 1830 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 1831 | clear_nlink(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1832 | iput(inode); |
Tiger Yang | f5d3620 | 2008-11-14 11:15:44 +0800 | [diff] [blame] | 1833 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1834 | |
| 1835 | mlog_exit(status); |
| 1836 | |
| 1837 | return status; |
| 1838 | } |
| 1839 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1840 | static int ocfs2_blkno_stringify(u64 blkno, char *name) |
| 1841 | { |
| 1842 | int status, namelen; |
| 1843 | |
| 1844 | mlog_entry_void(); |
| 1845 | |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 1846 | namelen = snprintf(name, OCFS2_ORPHAN_NAMELEN + 1, "%016llx", |
| 1847 | (long long)blkno); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1848 | if (namelen <= 0) { |
| 1849 | if (namelen) |
| 1850 | status = namelen; |
| 1851 | else |
| 1852 | status = -EINVAL; |
| 1853 | mlog_errno(status); |
| 1854 | goto bail; |
| 1855 | } |
| 1856 | if (namelen != OCFS2_ORPHAN_NAMELEN) { |
| 1857 | status = -EINVAL; |
| 1858 | mlog_errno(status); |
| 1859 | goto bail; |
| 1860 | } |
| 1861 | |
| 1862 | mlog(0, "built filename '%s' for orphan dir (len=%d)\n", name, |
| 1863 | namelen); |
| 1864 | |
| 1865 | status = 0; |
| 1866 | bail: |
| 1867 | mlog_exit(status); |
| 1868 | return status; |
| 1869 | } |
| 1870 | |
| 1871 | static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb, |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1872 | struct inode **ret_orphan_dir, |
Tao Ma | 19bd341 | 2009-08-18 11:44:10 +0800 | [diff] [blame] | 1873 | u64 blkno, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1874 | char *name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1875 | struct ocfs2_dir_lookup_result *lookup) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1876 | { |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1877 | struct inode *orphan_dir_inode; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1878 | struct buffer_head *orphan_dir_bh = NULL; |
| 1879 | int status = 0; |
| 1880 | |
Tao Ma | 19bd341 | 2009-08-18 11:44:10 +0800 | [diff] [blame] | 1881 | status = ocfs2_blkno_stringify(blkno, name); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1882 | if (status < 0) { |
| 1883 | mlog_errno(status); |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1884 | return status; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1885 | } |
| 1886 | |
| 1887 | orphan_dir_inode = ocfs2_get_system_file_inode(osb, |
| 1888 | ORPHAN_DIR_SYSTEM_INODE, |
| 1889 | osb->slot_num); |
| 1890 | if (!orphan_dir_inode) { |
| 1891 | status = -ENOENT; |
| 1892 | mlog_errno(status); |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1893 | return status; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1894 | } |
| 1895 | |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1896 | mutex_lock(&orphan_dir_inode->i_mutex); |
| 1897 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1898 | status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1899 | if (status < 0) { |
| 1900 | mlog_errno(status); |
| 1901 | goto leave; |
| 1902 | } |
| 1903 | |
| 1904 | status = ocfs2_prepare_dir_for_insert(osb, orphan_dir_inode, |
| 1905 | orphan_dir_bh, name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1906 | OCFS2_ORPHAN_NAMELEN, lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1907 | if (status < 0) { |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1908 | ocfs2_inode_unlock(orphan_dir_inode, 1); |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1909 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1910 | mlog_errno(status); |
| 1911 | goto leave; |
| 1912 | } |
| 1913 | |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1914 | *ret_orphan_dir = orphan_dir_inode; |
| 1915 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1916 | leave: |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1917 | if (status) { |
| 1918 | mutex_unlock(&orphan_dir_inode->i_mutex); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1919 | iput(orphan_dir_inode); |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1920 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1921 | |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 1922 | brelse(orphan_dir_bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1923 | |
| 1924 | mlog_exit(status); |
| 1925 | return status; |
| 1926 | } |
| 1927 | |
| 1928 | static int ocfs2_orphan_add(struct ocfs2_super *osb, |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 1929 | handle_t *handle, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1930 | struct inode *inode, |
Tristan Ye | 3939fda | 2010-03-19 09:21:09 +0800 | [diff] [blame] | 1931 | struct buffer_head *fe_bh, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1932 | char *name, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1933 | struct ocfs2_dir_lookup_result *lookup, |
Mark Fasheh | 5098c27 | 2006-10-05 18:12:57 -0700 | [diff] [blame] | 1934 | struct inode *orphan_dir_inode) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1935 | { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1936 | struct buffer_head *orphan_dir_bh = NULL; |
| 1937 | int status = 0; |
| 1938 | struct ocfs2_dinode *orphan_fe; |
Tristan Ye | 3939fda | 2010-03-19 09:21:09 +0800 | [diff] [blame] | 1939 | struct ocfs2_dinode *fe = (struct ocfs2_dinode *) fe_bh->b_data; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1940 | |
| 1941 | mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino); |
| 1942 | |
Joel Becker | b657c95 | 2008-11-13 14:49:11 -0800 | [diff] [blame] | 1943 | status = ocfs2_read_inode_block(orphan_dir_inode, &orphan_dir_bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1944 | if (status < 0) { |
| 1945 | mlog_errno(status); |
| 1946 | goto leave; |
| 1947 | } |
| 1948 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 1949 | status = ocfs2_journal_access_di(handle, |
| 1950 | INODE_CACHE(orphan_dir_inode), |
| 1951 | orphan_dir_bh, |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 1952 | OCFS2_JOURNAL_ACCESS_WRITE); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1953 | if (status < 0) { |
| 1954 | mlog_errno(status); |
| 1955 | goto leave; |
| 1956 | } |
| 1957 | |
| 1958 | /* we're a cluster, and nlink can change on disk from |
| 1959 | * underneath us... */ |
| 1960 | orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data; |
| 1961 | if (S_ISDIR(inode->i_mode)) |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 1962 | ocfs2_add_links_count(orphan_fe, 1); |
| 1963 | orphan_dir_inode->i_nlink = ocfs2_read_links_count(orphan_fe); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1964 | |
| 1965 | status = ocfs2_journal_dirty(handle, orphan_dir_bh); |
| 1966 | if (status < 0) { |
| 1967 | mlog_errno(status); |
| 1968 | goto leave; |
| 1969 | } |
| 1970 | |
| 1971 | status = __ocfs2_add_entry(handle, orphan_dir_inode, name, |
| 1972 | OCFS2_ORPHAN_NAMELEN, inode, |
| 1973 | OCFS2_I(inode)->ip_blkno, |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 1974 | orphan_dir_bh, lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1975 | if (status < 0) { |
| 1976 | mlog_errno(status); |
| 1977 | goto leave; |
| 1978 | } |
| 1979 | |
Tristan Ye | 3939fda | 2010-03-19 09:21:09 +0800 | [diff] [blame] | 1980 | /* |
| 1981 | * We're going to journal the change of i_flags and i_orphaned_slot. |
| 1982 | * It's safe anyway, though some callers may duplicate the journaling. |
| 1983 | * Journaling within the func just make the logic look more |
| 1984 | * straightforward. |
| 1985 | */ |
| 1986 | status = ocfs2_journal_access_di(handle, |
| 1987 | INODE_CACHE(inode), |
| 1988 | fe_bh, |
| 1989 | OCFS2_JOURNAL_ACCESS_WRITE); |
| 1990 | if (status < 0) { |
| 1991 | mlog_errno(status); |
| 1992 | goto leave; |
| 1993 | } |
| 1994 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1995 | le32_add_cpu(&fe->i_flags, OCFS2_ORPHANED_FL); |
Li Dongyang | d4cd187 | 2010-04-22 16:11:19 +0800 | [diff] [blame] | 1996 | OCFS2_I(inode)->ip_flags &= ~OCFS2_INODE_SKIP_ORPHAN_DIR; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1997 | |
| 1998 | /* Record which orphan dir our inode now resides |
| 1999 | * in. delete_inode will use this to determine which orphan |
| 2000 | * dir to lock. */ |
Tiger Yang | 5000863 | 2007-03-20 16:01:38 -0700 | [diff] [blame] | 2001 | fe->i_orphaned_slot = cpu_to_le16(osb->slot_num); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2002 | |
Tristan Ye | 3939fda | 2010-03-19 09:21:09 +0800 | [diff] [blame] | 2003 | ocfs2_journal_dirty(handle, fe_bh); |
| 2004 | |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 2005 | mlog(0, "Inode %llu orphaned in slot %d\n", |
| 2006 | (unsigned long long)OCFS2_I(inode)->ip_blkno, osb->slot_num); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2007 | |
| 2008 | leave: |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 2009 | brelse(orphan_dir_bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2010 | |
| 2011 | mlog_exit(status); |
| 2012 | return status; |
| 2013 | } |
| 2014 | |
| 2015 | /* unlike orphan_add, we expect the orphan dir to already be locked here. */ |
| 2016 | int ocfs2_orphan_del(struct ocfs2_super *osb, |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 2017 | handle_t *handle, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2018 | struct inode *orphan_dir_inode, |
| 2019 | struct inode *inode, |
| 2020 | struct buffer_head *orphan_dir_bh) |
| 2021 | { |
| 2022 | char name[OCFS2_ORPHAN_NAMELEN + 1]; |
| 2023 | struct ocfs2_dinode *orphan_fe; |
| 2024 | int status = 0; |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 2025 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2026 | |
| 2027 | mlog_entry_void(); |
| 2028 | |
| 2029 | status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, name); |
| 2030 | if (status < 0) { |
| 2031 | mlog_errno(status); |
| 2032 | goto leave; |
| 2033 | } |
| 2034 | |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 2035 | mlog(0, "removing '%s' from orphan dir %llu (namelen=%d)\n", |
| 2036 | name, (unsigned long long)OCFS2_I(orphan_dir_inode)->ip_blkno, |
| 2037 | OCFS2_ORPHAN_NAMELEN); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2038 | |
| 2039 | /* find it's spot in the orphan directory */ |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 2040 | status = ocfs2_find_entry(name, OCFS2_ORPHAN_NAMELEN, orphan_dir_inode, |
| 2041 | &lookup); |
| 2042 | if (status) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2043 | mlog_errno(status); |
| 2044 | goto leave; |
| 2045 | } |
| 2046 | |
| 2047 | /* remove it from the orphan directory */ |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 2048 | status = ocfs2_delete_entry(handle, orphan_dir_inode, &lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2049 | if (status < 0) { |
| 2050 | mlog_errno(status); |
| 2051 | goto leave; |
| 2052 | } |
| 2053 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 2054 | status = ocfs2_journal_access_di(handle, |
| 2055 | INODE_CACHE(orphan_dir_inode), |
| 2056 | orphan_dir_bh, |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 2057 | OCFS2_JOURNAL_ACCESS_WRITE); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2058 | if (status < 0) { |
| 2059 | mlog_errno(status); |
| 2060 | goto leave; |
| 2061 | } |
| 2062 | |
| 2063 | /* do the i_nlink dance! :) */ |
| 2064 | orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data; |
| 2065 | if (S_ISDIR(inode->i_mode)) |
Mark Fasheh | 198a1ca | 2008-11-20 17:54:57 -0800 | [diff] [blame] | 2066 | ocfs2_add_links_count(orphan_fe, -1); |
| 2067 | orphan_dir_inode->i_nlink = ocfs2_read_links_count(orphan_fe); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2068 | |
| 2069 | status = ocfs2_journal_dirty(handle, orphan_dir_bh); |
| 2070 | if (status < 0) { |
| 2071 | mlog_errno(status); |
| 2072 | goto leave; |
| 2073 | } |
| 2074 | |
| 2075 | leave: |
Mark Fasheh | 4a12ca3 | 2008-11-12 15:43:34 -0800 | [diff] [blame] | 2076 | ocfs2_free_dir_lookup_result(&lookup); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2077 | |
| 2078 | mlog_exit(status); |
| 2079 | return status; |
| 2080 | } |
| 2081 | |
Tao Ma | bc13d34 | 2009-08-18 11:44:14 +0800 | [diff] [blame] | 2082 | int ocfs2_create_inode_in_orphan(struct inode *dir, |
| 2083 | int mode, |
| 2084 | struct inode **new_inode) |
| 2085 | { |
| 2086 | int status, did_quota_inode = 0; |
| 2087 | struct inode *inode = NULL; |
| 2088 | struct inode *orphan_dir = NULL; |
| 2089 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); |
| 2090 | struct ocfs2_dinode *di = NULL; |
| 2091 | handle_t *handle = NULL; |
| 2092 | char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; |
| 2093 | struct buffer_head *parent_di_bh = NULL; |
| 2094 | struct buffer_head *new_di_bh = NULL; |
| 2095 | struct ocfs2_alloc_context *inode_ac = NULL; |
| 2096 | struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; |
| 2097 | |
| 2098 | status = ocfs2_inode_lock(dir, &parent_di_bh, 1); |
| 2099 | if (status < 0) { |
| 2100 | if (status != -ENOENT) |
| 2101 | mlog_errno(status); |
| 2102 | return status; |
| 2103 | } |
| 2104 | |
| 2105 | /* |
| 2106 | * We give the orphan dir the root blkno to fake an orphan name, |
| 2107 | * and allocate enough space for our insertion. |
| 2108 | */ |
| 2109 | status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, |
| 2110 | osb->root_blkno, |
| 2111 | orphan_name, &orphan_insert); |
| 2112 | if (status < 0) { |
| 2113 | mlog_errno(status); |
| 2114 | goto leave; |
| 2115 | } |
| 2116 | |
| 2117 | /* reserve an inode spot */ |
| 2118 | status = ocfs2_reserve_new_inode(osb, &inode_ac); |
| 2119 | if (status < 0) { |
| 2120 | if (status != -ENOSPC) |
| 2121 | mlog_errno(status); |
| 2122 | goto leave; |
| 2123 | } |
| 2124 | |
| 2125 | inode = ocfs2_get_init_inode(dir, mode); |
| 2126 | if (!inode) { |
| 2127 | status = -ENOMEM; |
| 2128 | mlog_errno(status); |
| 2129 | goto leave; |
| 2130 | } |
| 2131 | |
| 2132 | handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, 0, 0)); |
| 2133 | if (IS_ERR(handle)) { |
| 2134 | status = PTR_ERR(handle); |
| 2135 | handle = NULL; |
| 2136 | mlog_errno(status); |
| 2137 | goto leave; |
| 2138 | } |
| 2139 | |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 2140 | status = dquot_alloc_inode(inode); |
| 2141 | if (status) |
Tao Ma | bc13d34 | 2009-08-18 11:44:14 +0800 | [diff] [blame] | 2142 | goto leave; |
Tao Ma | bc13d34 | 2009-08-18 11:44:14 +0800 | [diff] [blame] | 2143 | did_quota_inode = 1; |
| 2144 | |
Tao Ma | 10cf1a0 | 2009-12-18 10:24:55 +0800 | [diff] [blame] | 2145 | inode->i_nlink = 0; |
Tao Ma | bc13d34 | 2009-08-18 11:44:14 +0800 | [diff] [blame] | 2146 | /* do the real work now. */ |
| 2147 | status = ocfs2_mknod_locked(osb, dir, inode, |
| 2148 | 0, &new_di_bh, parent_di_bh, handle, |
| 2149 | inode_ac); |
| 2150 | if (status < 0) { |
| 2151 | mlog_errno(status); |
| 2152 | goto leave; |
| 2153 | } |
| 2154 | |
| 2155 | status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, orphan_name); |
| 2156 | if (status < 0) { |
| 2157 | mlog_errno(status); |
| 2158 | goto leave; |
| 2159 | } |
| 2160 | |
| 2161 | di = (struct ocfs2_dinode *)new_di_bh->b_data; |
Tristan Ye | 3939fda | 2010-03-19 09:21:09 +0800 | [diff] [blame] | 2162 | status = ocfs2_orphan_add(osb, handle, inode, new_di_bh, orphan_name, |
Tao Ma | bc13d34 | 2009-08-18 11:44:14 +0800 | [diff] [blame] | 2163 | &orphan_insert, orphan_dir); |
| 2164 | if (status < 0) { |
| 2165 | mlog_errno(status); |
| 2166 | goto leave; |
| 2167 | } |
| 2168 | |
| 2169 | /* get open lock so that only nodes can't remove it from orphan dir. */ |
| 2170 | status = ocfs2_open_lock(inode); |
| 2171 | if (status < 0) |
| 2172 | mlog_errno(status); |
| 2173 | |
Tao Ma | c7d260a | 2009-12-18 10:24:54 +0800 | [diff] [blame] | 2174 | insert_inode_hash(inode); |
Tao Ma | bc13d34 | 2009-08-18 11:44:14 +0800 | [diff] [blame] | 2175 | leave: |
| 2176 | if (status < 0 && did_quota_inode) |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 2177 | dquot_free_inode(inode); |
Tao Ma | bc13d34 | 2009-08-18 11:44:14 +0800 | [diff] [blame] | 2178 | if (handle) |
| 2179 | ocfs2_commit_trans(osb, handle); |
| 2180 | |
| 2181 | if (orphan_dir) { |
| 2182 | /* This was locked for us in ocfs2_prepare_orphan_dir() */ |
| 2183 | ocfs2_inode_unlock(orphan_dir, 1); |
| 2184 | mutex_unlock(&orphan_dir->i_mutex); |
| 2185 | iput(orphan_dir); |
| 2186 | } |
| 2187 | |
| 2188 | if (status == -ENOSPC) |
| 2189 | mlog(0, "Disk is full\n"); |
| 2190 | |
| 2191 | if ((status < 0) && inode) { |
| 2192 | clear_nlink(inode); |
| 2193 | iput(inode); |
| 2194 | } |
| 2195 | |
| 2196 | if (inode_ac) |
| 2197 | ocfs2_free_alloc_context(inode_ac); |
| 2198 | |
| 2199 | brelse(new_di_bh); |
| 2200 | |
| 2201 | if (!status) |
| 2202 | *new_inode = inode; |
| 2203 | |
| 2204 | ocfs2_free_dir_lookup_result(&orphan_insert); |
| 2205 | |
| 2206 | ocfs2_inode_unlock(dir, 1); |
| 2207 | brelse(parent_di_bh); |
| 2208 | return status; |
| 2209 | } |
| 2210 | |
| 2211 | int ocfs2_mv_orphaned_inode_to_new(struct inode *dir, |
| 2212 | struct inode *inode, |
| 2213 | struct dentry *dentry) |
| 2214 | { |
| 2215 | int status = 0; |
| 2216 | struct buffer_head *parent_di_bh = NULL; |
| 2217 | handle_t *handle = NULL; |
| 2218 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); |
| 2219 | struct ocfs2_dinode *dir_di, *di; |
| 2220 | struct inode *orphan_dir_inode = NULL; |
| 2221 | struct buffer_head *orphan_dir_bh = NULL; |
| 2222 | struct buffer_head *di_bh = NULL; |
| 2223 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
| 2224 | |
| 2225 | mlog_entry("(0x%p, 0x%p, %.*s')\n", dir, dentry, |
| 2226 | dentry->d_name.len, dentry->d_name.name); |
| 2227 | |
| 2228 | status = ocfs2_inode_lock(dir, &parent_di_bh, 1); |
| 2229 | if (status < 0) { |
| 2230 | if (status != -ENOENT) |
| 2231 | mlog_errno(status); |
| 2232 | return status; |
| 2233 | } |
| 2234 | |
| 2235 | dir_di = (struct ocfs2_dinode *) parent_di_bh->b_data; |
| 2236 | if (!dir_di->i_links_count) { |
| 2237 | /* can't make a file in a deleted directory. */ |
| 2238 | status = -ENOENT; |
| 2239 | goto leave; |
| 2240 | } |
| 2241 | |
| 2242 | status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, |
| 2243 | dentry->d_name.len); |
| 2244 | if (status) |
| 2245 | goto leave; |
| 2246 | |
| 2247 | /* get a spot inside the dir. */ |
| 2248 | status = ocfs2_prepare_dir_for_insert(osb, dir, parent_di_bh, |
| 2249 | dentry->d_name.name, |
| 2250 | dentry->d_name.len, &lookup); |
| 2251 | if (status < 0) { |
| 2252 | mlog_errno(status); |
| 2253 | goto leave; |
| 2254 | } |
| 2255 | |
| 2256 | orphan_dir_inode = ocfs2_get_system_file_inode(osb, |
| 2257 | ORPHAN_DIR_SYSTEM_INODE, |
| 2258 | osb->slot_num); |
| 2259 | if (!orphan_dir_inode) { |
| 2260 | status = -EEXIST; |
| 2261 | mlog_errno(status); |
| 2262 | goto leave; |
| 2263 | } |
| 2264 | |
| 2265 | mutex_lock(&orphan_dir_inode->i_mutex); |
| 2266 | |
| 2267 | status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); |
| 2268 | if (status < 0) { |
| 2269 | mlog_errno(status); |
| 2270 | mutex_unlock(&orphan_dir_inode->i_mutex); |
| 2271 | iput(orphan_dir_inode); |
| 2272 | goto leave; |
| 2273 | } |
| 2274 | |
| 2275 | status = ocfs2_read_inode_block(inode, &di_bh); |
| 2276 | if (status < 0) { |
| 2277 | mlog_errno(status); |
| 2278 | goto orphan_unlock; |
| 2279 | } |
| 2280 | |
| 2281 | handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb)); |
| 2282 | if (IS_ERR(handle)) { |
| 2283 | status = PTR_ERR(handle); |
| 2284 | handle = NULL; |
| 2285 | mlog_errno(status); |
| 2286 | goto orphan_unlock; |
| 2287 | } |
| 2288 | |
| 2289 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), |
| 2290 | di_bh, OCFS2_JOURNAL_ACCESS_WRITE); |
| 2291 | if (status < 0) { |
| 2292 | mlog_errno(status); |
| 2293 | goto out_commit; |
| 2294 | } |
| 2295 | |
| 2296 | status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode, |
| 2297 | orphan_dir_bh); |
| 2298 | if (status < 0) { |
| 2299 | mlog_errno(status); |
| 2300 | goto out_commit; |
| 2301 | } |
| 2302 | |
| 2303 | di = (struct ocfs2_dinode *)di_bh->b_data; |
| 2304 | le32_add_cpu(&di->i_flags, -OCFS2_ORPHANED_FL); |
| 2305 | di->i_orphaned_slot = 0; |
Tao Ma | 10cf1a0 | 2009-12-18 10:24:55 +0800 | [diff] [blame] | 2306 | inode->i_nlink = 1; |
| 2307 | ocfs2_set_links_count(di, inode->i_nlink); |
Tao Ma | bc13d34 | 2009-08-18 11:44:14 +0800 | [diff] [blame] | 2308 | ocfs2_journal_dirty(handle, di_bh); |
| 2309 | |
| 2310 | status = ocfs2_add_entry(handle, dentry, inode, |
| 2311 | OCFS2_I(inode)->ip_blkno, parent_di_bh, |
| 2312 | &lookup); |
| 2313 | if (status < 0) { |
| 2314 | mlog_errno(status); |
| 2315 | goto out_commit; |
| 2316 | } |
| 2317 | |
| 2318 | status = ocfs2_dentry_attach_lock(dentry, inode, |
| 2319 | OCFS2_I(dir)->ip_blkno); |
| 2320 | if (status) { |
| 2321 | mlog_errno(status); |
| 2322 | goto out_commit; |
| 2323 | } |
| 2324 | |
Tao Ma | bc13d34 | 2009-08-18 11:44:14 +0800 | [diff] [blame] | 2325 | dentry->d_op = &ocfs2_dentry_ops; |
| 2326 | d_instantiate(dentry, inode); |
| 2327 | status = 0; |
| 2328 | out_commit: |
| 2329 | ocfs2_commit_trans(osb, handle); |
| 2330 | orphan_unlock: |
| 2331 | ocfs2_inode_unlock(orphan_dir_inode, 1); |
| 2332 | mutex_unlock(&orphan_dir_inode->i_mutex); |
| 2333 | iput(orphan_dir_inode); |
| 2334 | leave: |
| 2335 | |
| 2336 | ocfs2_inode_unlock(dir, 1); |
| 2337 | |
| 2338 | brelse(di_bh); |
| 2339 | brelse(parent_di_bh); |
| 2340 | brelse(orphan_dir_bh); |
| 2341 | |
| 2342 | ocfs2_free_dir_lookup_result(&lookup); |
| 2343 | |
| 2344 | mlog_exit(status); |
| 2345 | |
| 2346 | return status; |
| 2347 | } |
| 2348 | |
Arjan van de Ven | 92e1d5b | 2007-02-12 00:55:39 -0800 | [diff] [blame] | 2349 | const struct inode_operations ocfs2_dir_iops = { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2350 | .create = ocfs2_create, |
| 2351 | .lookup = ocfs2_lookup, |
| 2352 | .link = ocfs2_link, |
| 2353 | .unlink = ocfs2_unlink, |
| 2354 | .rmdir = ocfs2_unlink, |
| 2355 | .symlink = ocfs2_symlink, |
| 2356 | .mkdir = ocfs2_mkdir, |
| 2357 | .mknod = ocfs2_mknod, |
| 2358 | .rename = ocfs2_rename, |
| 2359 | .setattr = ocfs2_setattr, |
| 2360 | .getattr = ocfs2_getattr, |
Tiger Yang | d38eb8d | 2006-11-27 09:59:21 +0800 | [diff] [blame] | 2361 | .permission = ocfs2_permission, |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 2362 | .setxattr = generic_setxattr, |
| 2363 | .getxattr = generic_getxattr, |
| 2364 | .listxattr = ocfs2_listxattr, |
| 2365 | .removexattr = generic_removexattr, |
Tristan Ye | 55f4946 | 2009-12-17 18:42:16 +0800 | [diff] [blame] | 2366 | .fiemap = ocfs2_fiemap, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2367 | }; |