Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * fs/cifs/inode.c |
| 3 | * |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 4 | * Copyright (C) International Business Machines Corp., 2002,2007 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * Author(s): Steve French (sfrench@us.ibm.com) |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU Lesser General Public License as published |
| 9 | * by the Free Software Foundation; either version 2.1 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 15 | * the GNU Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public License |
| 18 | * along with this library; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | #include <linux/fs.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/stat.h> |
| 23 | #include <linux/pagemap.h> |
| 24 | #include <asm/div64.h> |
| 25 | #include "cifsfs.h" |
| 26 | #include "cifspdu.h" |
| 27 | #include "cifsglob.h" |
| 28 | #include "cifsproto.h" |
| 29 | #include "cifs_debug.h" |
| 30 | #include "cifs_fs_sb.h" |
| 31 | |
Christoph Hellwig | 70eff55 | 2008-02-15 20:55:05 +0000 | [diff] [blame] | 32 | |
| 33 | static void cifs_set_ops(struct inode *inode) |
| 34 | { |
| 35 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); |
| 36 | |
| 37 | switch (inode->i_mode & S_IFMT) { |
| 38 | case S_IFREG: |
| 39 | inode->i_op = &cifs_file_inode_ops; |
| 40 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { |
| 41 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
| 42 | inode->i_fop = &cifs_file_direct_nobrl_ops; |
| 43 | else |
| 44 | inode->i_fop = &cifs_file_direct_ops; |
| 45 | } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
| 46 | inode->i_fop = &cifs_file_nobrl_ops; |
| 47 | else { /* not direct, send byte range locks */ |
| 48 | inode->i_fop = &cifs_file_ops; |
| 49 | } |
| 50 | |
| 51 | |
| 52 | /* check if server can support readpages */ |
| 53 | if (cifs_sb->tcon->ses->server->maxBuf < |
| 54 | PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) |
| 55 | inode->i_data.a_ops = &cifs_addr_ops_smallbuf; |
| 56 | else |
| 57 | inode->i_data.a_ops = &cifs_addr_ops; |
| 58 | break; |
| 59 | case S_IFDIR: |
| 60 | inode->i_op = &cifs_dir_inode_ops; |
| 61 | inode->i_fop = &cifs_dir_ops; |
| 62 | break; |
| 63 | case S_IFLNK: |
| 64 | inode->i_op = &cifs_symlink_inode_ops; |
| 65 | break; |
| 66 | default: |
| 67 | init_special_inode(inode, inode->i_mode, inode->i_rdev); |
| 68 | break; |
| 69 | } |
| 70 | } |
| 71 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | int cifs_get_inode_info_unix(struct inode **pinode, |
| 73 | const unsigned char *search_path, struct super_block *sb, int xid) |
| 74 | { |
| 75 | int rc = 0; |
| 76 | FILE_UNIX_BASIC_INFO findData; |
| 77 | struct cifsTconInfo *pTcon; |
| 78 | struct inode *inode; |
| 79 | struct cifs_sb_info *cifs_sb = CIFS_SB(sb); |
| 80 | char *tmp_path; |
| 81 | |
| 82 | pTcon = cifs_sb->tcon; |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 83 | cFYI(1, ("Getting info on %s", search_path)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | /* could have done a find first instead but this returns more info */ |
| 85 | rc = CIFSSMBUnixQPathInfo(xid, pTcon, search_path, &findData, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 86 | cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & |
| 87 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | /* dump_mem("\nUnixQPathInfo return data", &findData, |
| 89 | sizeof(findData)); */ |
| 90 | if (rc) { |
| 91 | if (rc == -EREMOTE) { |
| 92 | tmp_path = |
| 93 | kmalloc(strnlen(pTcon->treeName, |
| 94 | MAX_TREE_SIZE + 1) + |
| 95 | strnlen(search_path, MAX_PATHCONF) + 1, |
| 96 | GFP_KERNEL); |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 97 | if (tmp_path == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | return -ENOMEM; |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 99 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 100 | /* have to skip first of the double backslash of |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | UNC name */ |
| 102 | strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE); |
| 103 | strncat(tmp_path, search_path, MAX_PATHCONF); |
| 104 | rc = connect_to_dfs_path(xid, pTcon->ses, |
| 105 | /* treename + */ tmp_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 106 | cifs_sb->local_nls, |
| 107 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 108 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | kfree(tmp_path); |
| 110 | |
| 111 | /* BB fix up inode etc. */ |
| 112 | } else if (rc) { |
| 113 | return rc; |
| 114 | } |
| 115 | } else { |
| 116 | struct cifsInodeInfo *cifsInfo; |
| 117 | __u32 type = le32_to_cpu(findData.Type); |
| 118 | __u64 num_of_bytes = le64_to_cpu(findData.NumOfBytes); |
| 119 | __u64 end_of_file = le64_to_cpu(findData.EndOfFile); |
| 120 | |
| 121 | /* get new inode */ |
| 122 | if (*pinode == NULL) { |
| 123 | *pinode = new_inode(sb); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 124 | if (*pinode == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | return -ENOMEM; |
| 126 | /* Is an i_ino of zero legal? */ |
| 127 | /* Are there sanity checks we can use to ensure that |
| 128 | the server is really filling in that field? */ |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 129 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | (*pinode)->i_ino = |
| 131 | (unsigned long)findData.UniqueId; |
| 132 | } /* note ino incremented to unique num in new_inode */ |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 133 | if (sb->s_flags & MS_NOATIME) |
Steve French | 1b2b212 | 2007-02-17 04:30:54 +0000 | [diff] [blame] | 134 | (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | insert_inode_hash(*pinode); |
| 137 | } |
| 138 | |
| 139 | inode = *pinode; |
| 140 | cifsInfo = CIFS_I(inode); |
| 141 | |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 142 | cFYI(1, ("Old time %ld", cifsInfo->time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | cifsInfo->time = jiffies; |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 144 | cFYI(1, ("New time %ld", cifsInfo->time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | /* this is ok to set on every inode revalidate */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 146 | atomic_set(&cifsInfo->inUse, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
| 148 | inode->i_atime = |
| 149 | cifs_NTtimeToUnix(le64_to_cpu(findData.LastAccessTime)); |
| 150 | inode->i_mtime = |
| 151 | cifs_NTtimeToUnix(le64_to_cpu |
| 152 | (findData.LastModificationTime)); |
| 153 | inode->i_ctime = |
| 154 | cifs_NTtimeToUnix(le64_to_cpu(findData.LastStatusChange)); |
| 155 | inode->i_mode = le64_to_cpu(findData.Permissions); |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 156 | /* since we set the inode type below we need to mask off |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 157 | to avoid strange results if bits set above */ |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 158 | inode->i_mode &= ~S_IFMT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | if (type == UNIX_FILE) { |
| 160 | inode->i_mode |= S_IFREG; |
| 161 | } else if (type == UNIX_SYMLINK) { |
| 162 | inode->i_mode |= S_IFLNK; |
| 163 | } else if (type == UNIX_DIR) { |
| 164 | inode->i_mode |= S_IFDIR; |
| 165 | } else if (type == UNIX_CHARDEV) { |
| 166 | inode->i_mode |= S_IFCHR; |
| 167 | inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor), |
| 168 | le64_to_cpu(findData.DevMinor) & MINORMASK); |
| 169 | } else if (type == UNIX_BLOCKDEV) { |
| 170 | inode->i_mode |= S_IFBLK; |
| 171 | inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor), |
| 172 | le64_to_cpu(findData.DevMinor) & MINORMASK); |
| 173 | } else if (type == UNIX_FIFO) { |
| 174 | inode->i_mode |= S_IFIFO; |
| 175 | } else if (type == UNIX_SOCKET) { |
| 176 | inode->i_mode |= S_IFSOCK; |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 177 | } else { |
| 178 | /* safest to call it a file if we do not know */ |
| 179 | inode->i_mode |= S_IFREG; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 180 | cFYI(1, ("unknown type %d", type)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 182 | |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 183 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) |
| 184 | inode->i_uid = cifs_sb->mnt_uid; |
| 185 | else |
| 186 | inode->i_uid = le64_to_cpu(findData.Uid); |
| 187 | |
| 188 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) |
| 189 | inode->i_gid = cifs_sb->mnt_gid; |
| 190 | else |
| 191 | inode->i_gid = le64_to_cpu(findData.Gid); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 192 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | inode->i_nlink = le64_to_cpu(findData.Nlinks); |
| 194 | |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 195 | spin_lock(&inode->i_lock); |
Steve French | 7ba5263 | 2007-02-08 18:14:13 +0000 | [diff] [blame] | 196 | if (is_size_safe_to_change(cifsInfo, end_of_file)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | /* can not safely change the file size here if the |
| 198 | client is writing to it due to potential races */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | i_size_write(inode, end_of_file); |
| 200 | |
| 201 | /* blksize needs to be multiple of two. So safer to default to |
| 202 | blksize and blkbits set in superblock so 2**blkbits and blksize |
| 203 | will match rather than setting to: |
| 204 | (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/ |
| 205 | |
| 206 | /* This seems incredibly stupid but it turns out that i_blocks |
| 207 | is not related to (i_size / i_blksize), instead 512 byte size |
| 208 | is required for calculating num blocks */ |
| 209 | |
| 210 | /* 512 bytes (2**9) is the fake blocksize that must be used */ |
| 211 | /* for this calculation */ |
| 212 | inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; |
| 213 | } |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 214 | spin_unlock(&inode->i_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | |
| 216 | if (num_of_bytes < end_of_file) |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 217 | cFYI(1, ("allocation size less than end of file")); |
Andrew Morton | 5515eff | 2006-03-26 01:37:53 -0800 | [diff] [blame] | 218 | cFYI(1, ("Size %ld and blocks %llu", |
| 219 | (unsigned long) inode->i_size, |
| 220 | (unsigned long long)inode->i_blocks)); |
Steve French | 8b94bcb | 2005-11-11 11:41:00 -0800 | [diff] [blame] | 221 | |
Christoph Hellwig | 70eff55 | 2008-02-15 20:55:05 +0000 | [diff] [blame] | 222 | cifs_set_ops(inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | } |
| 224 | return rc; |
| 225 | } |
| 226 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 227 | static int decode_sfu_inode(struct inode *inode, __u64 size, |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 228 | const unsigned char *path, |
| 229 | struct cifs_sb_info *cifs_sb, int xid) |
| 230 | { |
| 231 | int rc; |
| 232 | int oplock = FALSE; |
| 233 | __u16 netfid; |
| 234 | struct cifsTconInfo *pTcon = cifs_sb->tcon; |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 235 | char buf[24]; |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 236 | unsigned int bytes_read; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 237 | char *pbuf; |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 238 | |
| 239 | pbuf = buf; |
| 240 | |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 241 | if (size == 0) { |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 242 | inode->i_mode |= S_IFIFO; |
| 243 | return 0; |
| 244 | } else if (size < 8) { |
| 245 | return -EINVAL; /* EOPNOTSUPP? */ |
| 246 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 247 | |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 248 | rc = CIFSSMBOpen(xid, pTcon, path, FILE_OPEN, GENERIC_READ, |
| 249 | CREATE_NOT_DIR, &netfid, &oplock, NULL, |
| 250 | cifs_sb->local_nls, |
| 251 | cifs_sb->mnt_cifs_flags & |
| 252 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 253 | if (rc == 0) { |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 254 | int buf_type = CIFS_NO_BUFFER; |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 255 | /* Read header */ |
| 256 | rc = CIFSSMBRead(xid, pTcon, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 257 | netfid, |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 258 | 24 /* length */, 0 /* offset */, |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 259 | &bytes_read, &pbuf, &buf_type); |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 260 | if ((rc == 0) && (bytes_read >= 8)) { |
| 261 | if (memcmp("IntxBLK", pbuf, 8) == 0) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 262 | cFYI(1, ("Block device")); |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 263 | inode->i_mode |= S_IFBLK; |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 264 | if (bytes_read == 24) { |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 265 | /* we have enough to decode dev num */ |
| 266 | __u64 mjr; /* major */ |
| 267 | __u64 mnr; /* minor */ |
| 268 | mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); |
| 269 | mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); |
| 270 | inode->i_rdev = MKDEV(mjr, mnr); |
| 271 | } |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 272 | } else if (memcmp("IntxCHR", pbuf, 8) == 0) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 273 | cFYI(1, ("Char device")); |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 274 | inode->i_mode |= S_IFCHR; |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 275 | if (bytes_read == 24) { |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 276 | /* we have enough to decode dev num */ |
| 277 | __u64 mjr; /* major */ |
| 278 | __u64 mnr; /* minor */ |
| 279 | mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); |
| 280 | mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); |
| 281 | inode->i_rdev = MKDEV(mjr, mnr); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 282 | } |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 283 | } else if (memcmp("IntxLNK", pbuf, 7) == 0) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 284 | cFYI(1, ("Symlink")); |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 285 | inode->i_mode |= S_IFLNK; |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 286 | } else { |
| 287 | inode->i_mode |= S_IFREG; /* file? */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 288 | rc = -EOPNOTSUPP; |
Steve French | 86c96b4 | 2005-11-18 20:25:31 -0800 | [diff] [blame] | 289 | } |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 290 | } else { |
| 291 | inode->i_mode |= S_IFREG; /* then it is a file */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 292 | rc = -EOPNOTSUPP; /* or some unknown SFU type */ |
| 293 | } |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 294 | CIFSSMBClose(xid, pTcon, netfid); |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 295 | } |
| 296 | return rc; |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 297 | } |
| 298 | |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 299 | #define SFBITS_MASK (S_ISVTX | S_ISGID | S_ISUID) /* SETFILEBITS valid bits */ |
| 300 | |
Steve French | 953f868 | 2007-10-31 04:54:42 +0000 | [diff] [blame] | 301 | static int get_sfu_mode(struct inode *inode, |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 302 | const unsigned char *path, |
| 303 | struct cifs_sb_info *cifs_sb, int xid) |
| 304 | { |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 305 | #ifdef CONFIG_CIFS_XATTR |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 306 | ssize_t rc; |
| 307 | char ea_value[4]; |
| 308 | __u32 mode; |
| 309 | |
| 310 | rc = CIFSSMBQueryEA(xid, cifs_sb->tcon, path, "SETFILEBITS", |
| 311 | ea_value, 4 /* size of buf */, cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 312 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 313 | if (rc < 0) |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 314 | return (int)rc; |
| 315 | else if (rc > 3) { |
| 316 | mode = le32_to_cpu(*((__le32 *)ea_value)); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 317 | inode->i_mode &= ~SFBITS_MASK; |
| 318 | cFYI(1, ("special bits 0%o org mode 0%o", mode, inode->i_mode)); |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 319 | inode->i_mode = (mode & SFBITS_MASK) | inode->i_mode; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 320 | cFYI(1, ("special mode bits 0%o", mode)); |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 321 | return 0; |
| 322 | } else { |
| 323 | return 0; |
| 324 | } |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 325 | #else |
| 326 | return -EOPNOTSUPP; |
| 327 | #endif |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 328 | } |
| 329 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | int cifs_get_inode_info(struct inode **pinode, |
| 331 | const unsigned char *search_path, FILE_ALL_INFO *pfindData, |
| 332 | struct super_block *sb, int xid) |
| 333 | { |
| 334 | int rc = 0; |
| 335 | struct cifsTconInfo *pTcon; |
| 336 | struct inode *inode; |
| 337 | struct cifs_sb_info *cifs_sb = CIFS_SB(sb); |
| 338 | char *tmp_path; |
| 339 | char *buf = NULL; |
Steve French | 8d6286f | 2006-11-16 22:48:25 +0000 | [diff] [blame] | 340 | int adjustTZ = FALSE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | |
| 342 | pTcon = cifs_sb->tcon; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 343 | cFYI(1, ("Getting info on %s", search_path)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 345 | if ((pfindData == NULL) && (*pinode != NULL)) { |
| 346 | if (CIFS_I(*pinode)->clientCanCacheRead) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 347 | cFYI(1, ("No need to revalidate cached inode sizes")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | return rc; |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | /* if file info not passed in then get it from server */ |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 353 | if (pfindData == NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 355 | if (buf == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | return -ENOMEM; |
| 357 | pfindData = (FILE_ALL_INFO *)buf; |
| 358 | /* could do find first instead but this returns more info */ |
| 359 | rc = CIFSSMBQPathInfo(xid, pTcon, search_path, pfindData, |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 360 | 0 /* not legacy */, |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 361 | cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 362 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 363 | /* BB optimize code so we do not make the above call |
| 364 | when server claims no NT SMB support and the above call |
| 365 | failed at least once - set flag in tcon or mount */ |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 366 | if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) { |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 367 | rc = SMBQueryInformation(xid, pTcon, search_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 368 | pfindData, cifs_sb->local_nls, |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 369 | cifs_sb->mnt_cifs_flags & |
| 370 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | 8d6286f | 2006-11-16 22:48:25 +0000 | [diff] [blame] | 371 | adjustTZ = TRUE; |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 372 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | } |
| 374 | /* dump_mem("\nQPathInfo return data",&findData, sizeof(findData)); */ |
| 375 | if (rc) { |
| 376 | if (rc == -EREMOTE) { |
| 377 | tmp_path = |
| 378 | kmalloc(strnlen |
| 379 | (pTcon->treeName, |
| 380 | MAX_TREE_SIZE + 1) + |
| 381 | strnlen(search_path, MAX_PATHCONF) + 1, |
| 382 | GFP_KERNEL); |
| 383 | if (tmp_path == NULL) { |
| 384 | kfree(buf); |
| 385 | return -ENOMEM; |
| 386 | } |
| 387 | |
| 388 | strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE); |
| 389 | strncat(tmp_path, search_path, MAX_PATHCONF); |
| 390 | rc = connect_to_dfs_path(xid, pTcon->ses, |
| 391 | /* treename + */ tmp_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 392 | cifs_sb->local_nls, |
| 393 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 394 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | kfree(tmp_path); |
| 396 | /* BB fix up inode etc. */ |
| 397 | } else if (rc) { |
| 398 | kfree(buf); |
| 399 | return rc; |
| 400 | } |
| 401 | } else { |
| 402 | struct cifsInodeInfo *cifsInfo; |
| 403 | __u32 attr = le32_to_cpu(pfindData->Attributes); |
| 404 | |
| 405 | /* get new inode */ |
| 406 | if (*pinode == NULL) { |
| 407 | *pinode = new_inode(sb); |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 408 | if (*pinode == NULL) { |
| 409 | kfree(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | return -ENOMEM; |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 411 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | /* Is an i_ino of zero legal? Can we use that to check |
| 413 | if the server supports returning inode numbers? Are |
| 414 | there other sanity checks we can use to ensure that |
| 415 | the server is really filling in that field? */ |
| 416 | |
| 417 | /* We can not use the IndexNumber field by default from |
| 418 | Windows or Samba (in ALL_INFO buf) but we can request |
| 419 | it explicitly. It may not be unique presumably if |
| 420 | the server has multiple devices mounted under one |
| 421 | share */ |
| 422 | |
| 423 | /* There may be higher info levels that work but are |
| 424 | there Windows server or network appliances for which |
| 425 | IndexNumber field is not guaranteed unique? */ |
| 426 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 427 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | int rc1 = 0; |
| 429 | __u64 inode_num; |
| 430 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 431 | rc1 = CIFSGetSrvInodeNumber(xid, pTcon, |
| 432 | search_path, &inode_num, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 433 | cifs_sb->local_nls, |
| 434 | cifs_sb->mnt_cifs_flags & |
| 435 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 436 | if (rc1) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 437 | cFYI(1, ("GetSrvInodeNum rc %d", rc1)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | /* BB EOPNOSUPP disable SERVER_INUM? */ |
| 439 | } else /* do we need cast or hash to ino? */ |
| 440 | (*pinode)->i_ino = inode_num; |
| 441 | } /* else ino incremented to unique num in new_inode*/ |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 442 | if (sb->s_flags & MS_NOATIME) |
Steve French | 1b2b212 | 2007-02-17 04:30:54 +0000 | [diff] [blame] | 443 | (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | insert_inode_hash(*pinode); |
| 445 | } |
| 446 | inode = *pinode; |
| 447 | cifsInfo = CIFS_I(inode); |
| 448 | cifsInfo->cifsAttrs = attr; |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 449 | cFYI(1, ("Old time %ld", cifsInfo->time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | cifsInfo->time = jiffies; |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 451 | cFYI(1, ("New time %ld", cifsInfo->time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | |
| 453 | /* blksize needs to be multiple of two. So safer to default to |
| 454 | blksize and blkbits set in superblock so 2**blkbits and blksize |
| 455 | will match rather than setting to: |
| 456 | (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/ |
| 457 | |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 458 | /* Linux can not store file creation time so ignore it */ |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 459 | if (pfindData->LastAccessTime) |
Steve French | 1bd5bbc | 2006-09-28 03:35:57 +0000 | [diff] [blame] | 460 | inode->i_atime = cifs_NTtimeToUnix |
| 461 | (le64_to_cpu(pfindData->LastAccessTime)); |
| 462 | else /* do not need to use current_fs_time - time not stored */ |
| 463 | inode->i_atime = CURRENT_TIME; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | inode->i_mtime = |
| 465 | cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastWriteTime)); |
| 466 | inode->i_ctime = |
| 467 | cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime)); |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 468 | cFYI(0, ("Attributes came in as 0x%x", attr)); |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 469 | if (adjustTZ && (pTcon->ses) && (pTcon->ses->server)) { |
Steve French | 8d6286f | 2006-11-16 22:48:25 +0000 | [diff] [blame] | 470 | inode->i_ctime.tv_sec += pTcon->ses->server->timeAdj; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 471 | inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj; |
Steve French | 8d6286f | 2006-11-16 22:48:25 +0000 | [diff] [blame] | 472 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | |
| 474 | /* set default mode. will override for dirs below */ |
| 475 | if (atomic_read(&cifsInfo->inUse) == 0) |
| 476 | /* new inode, can safely set these fields */ |
| 477 | inode->i_mode = cifs_sb->mnt_file_mode; |
Steve French | 3020a1f | 2005-11-18 11:31:10 -0800 | [diff] [blame] | 478 | else /* since we set the inode type below we need to mask off |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 479 | to avoid strange results if type changes and both |
| 480 | get orred in */ |
| 481 | inode->i_mode &= ~S_IFMT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | /* if (attr & ATTR_REPARSE) */ |
| 483 | /* We no longer handle these as symlinks because we could not |
| 484 | follow them due to the absolute path with drive letter */ |
| 485 | if (attr & ATTR_DIRECTORY) { |
| 486 | /* override default perms since we do not do byte range locking |
| 487 | on dirs */ |
| 488 | inode->i_mode = cifs_sb->mnt_dir_mode; |
| 489 | inode->i_mode |= S_IFDIR; |
Steve French | eda3c029 | 2005-07-21 15:20:28 -0700 | [diff] [blame] | 490 | } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && |
| 491 | (cifsInfo->cifsAttrs & ATTR_SYSTEM) && |
| 492 | /* No need to le64 convert size of zero */ |
| 493 | (pfindData->EndOfFile == 0)) { |
| 494 | inode->i_mode = cifs_sb->mnt_file_mode; |
| 495 | inode->i_mode |= S_IFIFO; |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 496 | /* BB Finish for SFU style symlinks and devices */ |
| 497 | } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && |
| 498 | (cifsInfo->cifsAttrs & ATTR_SYSTEM)) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 499 | if (decode_sfu_inode(inode, |
Steve French | d6e2f2a4 | 2005-11-15 16:43:39 -0800 | [diff] [blame] | 500 | le64_to_cpu(pfindData->EndOfFile), |
| 501 | search_path, |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 502 | cifs_sb, xid)) |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 503 | cFYI(1, ("Unrecognized sfu inode type")); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 504 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 505 | cFYI(1, ("sfu mode 0%o", inode->i_mode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | } else { |
| 507 | inode->i_mode |= S_IFREG; |
| 508 | /* treat the dos attribute of read-only as read-only |
| 509 | mode e.g. 555 */ |
| 510 | if (cifsInfo->cifsAttrs & ATTR_READONLY) |
| 511 | inode->i_mode &= ~(S_IWUGO); |
Alan Tyson | f5c1e2e | 2007-03-10 06:05:14 +0000 | [diff] [blame] | 512 | else if ((inode->i_mode & S_IWUGO) == 0) |
| 513 | /* the ATTR_READONLY flag may have been */ |
| 514 | /* changed on server -- set any w bits */ |
| 515 | /* allowed by mnt_file_mode */ |
| 516 | inode->i_mode |= (S_IWUGO & |
| 517 | cifs_sb->mnt_file_mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | /* BB add code here - |
| 519 | validate if device or weird share or device type? */ |
| 520 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 521 | |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 522 | spin_lock(&inode->i_lock); |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 523 | if (is_size_safe_to_change(cifsInfo, |
| 524 | le64_to_cpu(pfindData->EndOfFile))) { |
Steve French | 7ba5263 | 2007-02-08 18:14:13 +0000 | [diff] [blame] | 525 | /* can not safely shrink the file size here if the |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | client is writing to it due to potential races */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 527 | i_size_write(inode, le64_to_cpu(pfindData->EndOfFile)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
| 529 | /* 512 bytes (2**9) is the fake blocksize that must be |
| 530 | used for this calculation */ |
| 531 | inode->i_blocks = (512 - 1 + le64_to_cpu( |
| 532 | pfindData->AllocationSize)) >> 9; |
| 533 | } |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 534 | spin_unlock(&inode->i_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
| 536 | inode->i_nlink = le32_to_cpu(pfindData->NumberOfLinks); |
| 537 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 538 | /* BB fill in uid and gid here? with help from winbind? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | or retrieve from NTFS stream extended attribute */ |
Steve French | 4879b44 | 2007-10-19 21:57:39 +0000 | [diff] [blame] | 540 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
Steve French | 953f868 | 2007-10-31 04:54:42 +0000 | [diff] [blame] | 541 | /* fill in 0777 bits from ACL */ |
Steve French | 4879b44 | 2007-10-19 21:57:39 +0000 | [diff] [blame] | 542 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { |
| 543 | cFYI(1, ("Getting mode bits from ACL")); |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 544 | acl_to_uid_mode(inode, search_path); |
Steve French | 4879b44 | 2007-10-19 21:57:39 +0000 | [diff] [blame] | 545 | } |
| 546 | #endif |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 547 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { |
Steve French | 953f868 | 2007-10-31 04:54:42 +0000 | [diff] [blame] | 548 | /* fill in remaining high mode bits e.g. SUID, VTX */ |
| 549 | get_sfu_mode(inode, search_path, cifs_sb, xid); |
Steve French | 9e294f1 | 2005-11-17 16:59:21 -0800 | [diff] [blame] | 550 | } else if (atomic_read(&cifsInfo->inUse) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | inode->i_uid = cifs_sb->mnt_uid; |
| 552 | inode->i_gid = cifs_sb->mnt_gid; |
| 553 | /* set so we do not keep refreshing these fields with |
| 554 | bad data after user has changed them in memory */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 555 | atomic_set(&cifsInfo->inUse, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | } |
| 557 | |
Christoph Hellwig | 70eff55 | 2008-02-15 20:55:05 +0000 | [diff] [blame] | 558 | cifs_set_ops(inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | } |
| 560 | kfree(buf); |
| 561 | return rc; |
| 562 | } |
| 563 | |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 564 | static const struct inode_operations cifs_ipc_inode_ops = { |
| 565 | .lookup = cifs_lookup, |
| 566 | }; |
| 567 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | /* gets root inode */ |
David Howells | ce634ab | 2008-02-07 00:15:33 -0800 | [diff] [blame] | 569 | struct inode *cifs_iget(struct super_block *sb, unsigned long ino) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | { |
David Howells | ce634ab | 2008-02-07 00:15:33 -0800 | [diff] [blame] | 571 | int xid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | struct cifs_sb_info *cifs_sb; |
David Howells | ce634ab | 2008-02-07 00:15:33 -0800 | [diff] [blame] | 573 | struct inode *inode; |
| 574 | long rc; |
| 575 | |
| 576 | inode = iget_locked(sb, ino); |
| 577 | if (!inode) |
| 578 | return ERR_PTR(-ENOMEM); |
| 579 | if (!(inode->i_state & I_NEW)) |
| 580 | return inode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | |
| 582 | cifs_sb = CIFS_SB(inode->i_sb); |
| 583 | xid = GetXid(); |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 584 | |
| 585 | if (cifs_sb->tcon->unix_ext) |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 586 | rc = cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | else |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 588 | rc = cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid); |
| 589 | if (rc && cifs_sb->tcon->ipc) { |
| 590 | cFYI(1, ("ipc connection - fake read inode")); |
| 591 | inode->i_mode |= S_IFDIR; |
| 592 | inode->i_nlink = 2; |
| 593 | inode->i_op = &cifs_ipc_inode_ops; |
| 594 | inode->i_fop = &simple_dir_operations; |
| 595 | inode->i_uid = cifs_sb->mnt_uid; |
| 596 | inode->i_gid = cifs_sb->mnt_gid; |
David Howells | ce634ab | 2008-02-07 00:15:33 -0800 | [diff] [blame] | 597 | _FreeXid(xid); |
| 598 | iget_failed(inode); |
| 599 | return ERR_PTR(rc); |
Steve French | 7f8ed42 | 2007-09-28 22:28:55 +0000 | [diff] [blame] | 600 | } |
| 601 | |
David Howells | ce634ab | 2008-02-07 00:15:33 -0800 | [diff] [blame] | 602 | unlock_new_inode(inode); |
| 603 | |
| 604 | /* can not call macro FreeXid here since in a void func |
| 605 | * TODO: This is no longer true |
| 606 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | _FreeXid(xid); |
David Howells | ce634ab | 2008-02-07 00:15:33 -0800 | [diff] [blame] | 608 | return inode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | } |
| 610 | |
| 611 | int cifs_unlink(struct inode *inode, struct dentry *direntry) |
| 612 | { |
| 613 | int rc = 0; |
| 614 | int xid; |
| 615 | struct cifs_sb_info *cifs_sb; |
| 616 | struct cifsTconInfo *pTcon; |
| 617 | char *full_path = NULL; |
| 618 | struct cifsInodeInfo *cifsInode; |
| 619 | FILE_BASIC_INFO *pinfo_buf; |
| 620 | |
Steve French | 06bcfed | 2006-03-31 22:43:50 +0000 | [diff] [blame] | 621 | cFYI(1, ("cifs_unlink, inode = 0x%p", inode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | |
| 623 | xid = GetXid(); |
| 624 | |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 625 | if (inode) |
Steve French | 6910ab3 | 2006-03-31 03:37:08 +0000 | [diff] [blame] | 626 | cifs_sb = CIFS_SB(inode->i_sb); |
| 627 | else |
Steve French | 06bcfed | 2006-03-31 22:43:50 +0000 | [diff] [blame] | 628 | cifs_sb = CIFS_SB(direntry->d_sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | pTcon = cifs_sb->tcon; |
| 630 | |
| 631 | /* Unlink can be called from rename so we can not grab the sem here |
| 632 | since we deadlock otherwise */ |
Arjan van de Ven | a11f3a0 | 2006-03-23 03:00:33 -0800 | [diff] [blame] | 633 | /* mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);*/ |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 634 | full_path = build_path_from_dentry(direntry); |
Arjan van de Ven | a11f3a0 | 2006-03-23 03:00:33 -0800 | [diff] [blame] | 635 | /* mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | if (full_path == NULL) { |
| 637 | FreeXid(xid); |
| 638 | return -ENOMEM; |
| 639 | } |
Steve French | 2d785a5 | 2007-07-15 01:48:57 +0000 | [diff] [blame] | 640 | |
| 641 | if ((pTcon->ses->capabilities & CAP_UNIX) && |
| 642 | (CIFS_UNIX_POSIX_PATH_OPS_CAP & |
| 643 | le64_to_cpu(pTcon->fsUnixInfo.Capability))) { |
| 644 | rc = CIFSPOSIXDelFile(xid, pTcon, full_path, |
| 645 | SMB_POSIX_UNLINK_FILE_TARGET, cifs_sb->local_nls, |
| 646 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
| 647 | cFYI(1, ("posix del rc %d", rc)); |
| 648 | if ((rc == 0) || (rc == -ENOENT)) |
| 649 | goto psx_del_no_retry; |
| 650 | } |
| 651 | |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 652 | rc = CIFSSMBDelFile(xid, pTcon, full_path, cifs_sb->local_nls, |
| 653 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | 2d785a5 | 2007-07-15 01:48:57 +0000 | [diff] [blame] | 654 | psx_del_no_retry: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | if (!rc) { |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 656 | if (direntry->d_inode) |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 657 | drop_nlink(direntry->d_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | } else if (rc == -ENOENT) { |
| 659 | d_drop(direntry); |
| 660 | } else if (rc == -ETXTBSY) { |
| 661 | int oplock = FALSE; |
| 662 | __u16 netfid; |
| 663 | |
| 664 | rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, DELETE, |
| 665 | CREATE_NOT_DIR | CREATE_DELETE_ON_CLOSE, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 666 | &netfid, &oplock, NULL, cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 667 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 668 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 669 | if (rc == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | CIFSSMBRenameOpenFile(xid, pTcon, netfid, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 671 | cifs_sb->local_nls, |
| 672 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 673 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | CIFSSMBClose(xid, pTcon, netfid); |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 675 | if (direntry->d_inode) |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 676 | drop_nlink(direntry->d_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | } |
| 678 | } else if (rc == -EACCES) { |
| 679 | /* try only if r/o attribute set in local lookup data? */ |
Eric Sesterhenn | a048d7a | 2006-02-21 22:33:09 +0000 | [diff] [blame] | 680 | pinfo_buf = kzalloc(sizeof(FILE_BASIC_INFO), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | if (pinfo_buf) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | /* ATTRS set to normal clears r/o bit */ |
| 683 | pinfo_buf->Attributes = cpu_to_le32(ATTR_NORMAL); |
| 684 | if (!(pTcon->ses->flags & CIFS_SES_NT4)) |
| 685 | rc = CIFSSMBSetTimes(xid, pTcon, full_path, |
| 686 | pinfo_buf, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 687 | cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 688 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 689 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | else |
| 691 | rc = -EOPNOTSUPP; |
| 692 | |
| 693 | if (rc == -EOPNOTSUPP) { |
| 694 | int oplock = FALSE; |
| 695 | __u16 netfid; |
| 696 | /* rc = CIFSSMBSetAttrLegacy(xid, pTcon, |
| 697 | full_path, |
| 698 | (__u16)ATTR_NORMAL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 699 | cifs_sb->local_nls); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | For some strange reason it seems that NT4 eats the |
| 701 | old setattr call without actually setting the |
| 702 | attributes so on to the third attempted workaround |
| 703 | */ |
| 704 | |
| 705 | /* BB could scan to see if we already have it open |
| 706 | and pass in pid of opener to function */ |
| 707 | rc = CIFSSMBOpen(xid, pTcon, full_path, |
| 708 | FILE_OPEN, SYNCHRONIZE | |
| 709 | FILE_WRITE_ATTRIBUTES, 0, |
| 710 | &netfid, &oplock, NULL, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 711 | cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 712 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 713 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 714 | if (rc == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | rc = CIFSSMBSetFileTimes(xid, pTcon, |
| 716 | pinfo_buf, |
| 717 | netfid); |
| 718 | CIFSSMBClose(xid, pTcon, netfid); |
| 719 | } |
| 720 | } |
| 721 | kfree(pinfo_buf); |
| 722 | } |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 723 | if (rc == 0) { |
| 724 | rc = CIFSSMBDelFile(xid, pTcon, full_path, |
| 725 | cifs_sb->local_nls, |
| 726 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 727 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | if (!rc) { |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 729 | if (direntry->d_inode) |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 730 | drop_nlink(direntry->d_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | } else if (rc == -ETXTBSY) { |
| 732 | int oplock = FALSE; |
| 733 | __u16 netfid; |
| 734 | |
| 735 | rc = CIFSSMBOpen(xid, pTcon, full_path, |
| 736 | FILE_OPEN, DELETE, |
| 737 | CREATE_NOT_DIR | |
| 738 | CREATE_DELETE_ON_CLOSE, |
| 739 | &netfid, &oplock, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 740 | cifs_sb->local_nls, |
| 741 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 742 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 743 | if (rc == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | CIFSSMBRenameOpenFile(xid, pTcon, |
| 745 | netfid, NULL, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 746 | cifs_sb->local_nls, |
| 747 | cifs_sb->mnt_cifs_flags & |
| 748 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | CIFSSMBClose(xid, pTcon, netfid); |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 750 | if (direntry->d_inode) |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 751 | drop_nlink(direntry->d_inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | } |
| 753 | /* BB if rc = -ETXTBUSY goto the rename logic BB */ |
| 754 | } |
| 755 | } |
| 756 | } |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 757 | if (direntry->d_inode) { |
Steve French | b2aeb9d | 2005-05-17 13:16:18 -0500 | [diff] [blame] | 758 | cifsInode = CIFS_I(direntry->d_inode); |
| 759 | cifsInode->time = 0; /* will force revalidate to get info |
| 760 | when needed */ |
| 761 | direntry->d_inode->i_ctime = current_fs_time(inode->i_sb); |
| 762 | } |
Steve French | 4523cc3 | 2007-04-30 20:13:06 +0000 | [diff] [blame] | 763 | if (inode) { |
Steve French | 06bcfed | 2006-03-31 22:43:50 +0000 | [diff] [blame] | 764 | inode->i_ctime = inode->i_mtime = current_fs_time(inode->i_sb); |
| 765 | cifsInode = CIFS_I(inode); |
| 766 | cifsInode->time = 0; /* force revalidate of dir as well */ |
| 767 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | |
| 769 | kfree(full_path); |
| 770 | FreeXid(xid); |
| 771 | return rc; |
| 772 | } |
| 773 | |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 774 | static void posix_fill_in_inode(struct inode *tmp_inode, |
| 775 | FILE_UNIX_BASIC_INFO *pData, int *pobject_type, int isNewInode) |
| 776 | { |
| 777 | loff_t local_size; |
| 778 | struct timespec local_mtime; |
| 779 | |
| 780 | struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode); |
| 781 | struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb); |
| 782 | |
| 783 | __u32 type = le32_to_cpu(pData->Type); |
| 784 | __u64 num_of_bytes = le64_to_cpu(pData->NumOfBytes); |
| 785 | __u64 end_of_file = le64_to_cpu(pData->EndOfFile); |
| 786 | cifsInfo->time = jiffies; |
| 787 | atomic_inc(&cifsInfo->inUse); |
| 788 | |
| 789 | /* save mtime and size */ |
| 790 | local_mtime = tmp_inode->i_mtime; |
| 791 | local_size = tmp_inode->i_size; |
| 792 | |
| 793 | tmp_inode->i_atime = |
| 794 | cifs_NTtimeToUnix(le64_to_cpu(pData->LastAccessTime)); |
| 795 | tmp_inode->i_mtime = |
| 796 | cifs_NTtimeToUnix(le64_to_cpu(pData->LastModificationTime)); |
| 797 | tmp_inode->i_ctime = |
| 798 | cifs_NTtimeToUnix(le64_to_cpu(pData->LastStatusChange)); |
| 799 | |
| 800 | tmp_inode->i_mode = le64_to_cpu(pData->Permissions); |
| 801 | /* since we set the inode type below we need to mask off type |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 802 | to avoid strange results if bits above were corrupt */ |
| 803 | tmp_inode->i_mode &= ~S_IFMT; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 804 | if (type == UNIX_FILE) { |
| 805 | *pobject_type = DT_REG; |
| 806 | tmp_inode->i_mode |= S_IFREG; |
| 807 | } else if (type == UNIX_SYMLINK) { |
| 808 | *pobject_type = DT_LNK; |
| 809 | tmp_inode->i_mode |= S_IFLNK; |
| 810 | } else if (type == UNIX_DIR) { |
| 811 | *pobject_type = DT_DIR; |
| 812 | tmp_inode->i_mode |= S_IFDIR; |
| 813 | } else if (type == UNIX_CHARDEV) { |
| 814 | *pobject_type = DT_CHR; |
| 815 | tmp_inode->i_mode |= S_IFCHR; |
| 816 | tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor), |
| 817 | le64_to_cpu(pData->DevMinor) & MINORMASK); |
| 818 | } else if (type == UNIX_BLOCKDEV) { |
| 819 | *pobject_type = DT_BLK; |
| 820 | tmp_inode->i_mode |= S_IFBLK; |
| 821 | tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor), |
| 822 | le64_to_cpu(pData->DevMinor) & MINORMASK); |
| 823 | } else if (type == UNIX_FIFO) { |
| 824 | *pobject_type = DT_FIFO; |
| 825 | tmp_inode->i_mode |= S_IFIFO; |
| 826 | } else if (type == UNIX_SOCKET) { |
| 827 | *pobject_type = DT_SOCK; |
| 828 | tmp_inode->i_mode |= S_IFSOCK; |
| 829 | } else { |
| 830 | /* safest to just call it a file */ |
| 831 | *pobject_type = DT_REG; |
| 832 | tmp_inode->i_mode |= S_IFREG; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 833 | cFYI(1, ("unknown inode type %d", type)); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 834 | } |
| 835 | |
Steve French | 90c81e0 | 2008-02-12 20:32:36 +0000 | [diff] [blame] | 836 | cFYI(DBG2, ("object type: %d", type)); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 837 | tmp_inode->i_uid = le64_to_cpu(pData->Uid); |
| 838 | tmp_inode->i_gid = le64_to_cpu(pData->Gid); |
| 839 | tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks); |
| 840 | |
| 841 | spin_lock(&tmp_inode->i_lock); |
| 842 | if (is_size_safe_to_change(cifsInfo, end_of_file)) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 843 | /* can not safely change the file size here if the |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 844 | client is writing to it due to potential races */ |
| 845 | i_size_write(tmp_inode, end_of_file); |
| 846 | |
| 847 | /* 512 bytes (2**9) is the fake blocksize that must be used */ |
| 848 | /* for this calculation, not the real blocksize */ |
| 849 | tmp_inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; |
| 850 | } |
| 851 | spin_unlock(&tmp_inode->i_lock); |
| 852 | |
| 853 | if (S_ISREG(tmp_inode->i_mode)) { |
| 854 | cFYI(1, ("File inode")); |
| 855 | tmp_inode->i_op = &cifs_file_inode_ops; |
| 856 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 857 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { |
| 858 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 859 | tmp_inode->i_fop = &cifs_file_direct_nobrl_ops; |
| 860 | else |
| 861 | tmp_inode->i_fop = &cifs_file_direct_ops; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 862 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 863 | } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 864 | tmp_inode->i_fop = &cifs_file_nobrl_ops; |
| 865 | else |
| 866 | tmp_inode->i_fop = &cifs_file_ops; |
| 867 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 868 | if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) && |
| 869 | (cifs_sb->tcon->ses->server->maxBuf < |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 870 | PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) |
| 871 | tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; |
| 872 | else |
| 873 | tmp_inode->i_data.a_ops = &cifs_addr_ops; |
| 874 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 875 | if (isNewInode) |
| 876 | return; /* No sense invalidating pages for new inode |
| 877 | since we we have not started caching |
| 878 | readahead file data yet */ |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 879 | |
| 880 | if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && |
| 881 | (local_size == tmp_inode->i_size)) { |
| 882 | cFYI(1, ("inode exists but unchanged")); |
| 883 | } else { |
| 884 | /* file may have changed on server */ |
| 885 | cFYI(1, ("invalidate inode, readdir detected change")); |
| 886 | invalidate_remote_inode(tmp_inode); |
| 887 | } |
| 888 | } else if (S_ISDIR(tmp_inode->i_mode)) { |
| 889 | cFYI(1, ("Directory inode")); |
| 890 | tmp_inode->i_op = &cifs_dir_inode_ops; |
| 891 | tmp_inode->i_fop = &cifs_dir_ops; |
| 892 | } else if (S_ISLNK(tmp_inode->i_mode)) { |
| 893 | cFYI(1, ("Symbolic Link inode")); |
| 894 | tmp_inode->i_op = &cifs_symlink_inode_ops; |
| 895 | /* tmp_inode->i_fop = *//* do not need to set to anything */ |
| 896 | } else { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 897 | cFYI(1, ("Special inode")); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 898 | init_special_inode(tmp_inode, tmp_inode->i_mode, |
| 899 | tmp_inode->i_rdev); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 900 | } |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 901 | } |
| 902 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) |
| 904 | { |
| 905 | int rc = 0; |
| 906 | int xid; |
| 907 | struct cifs_sb_info *cifs_sb; |
| 908 | struct cifsTconInfo *pTcon; |
| 909 | char *full_path = NULL; |
| 910 | struct inode *newinode = NULL; |
| 911 | |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 912 | cFYI(1, ("In cifs_mkdir, mode = 0x%x inode = 0x%p", mode, inode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | |
| 914 | xid = GetXid(); |
| 915 | |
| 916 | cifs_sb = CIFS_SB(inode->i_sb); |
| 917 | pTcon = cifs_sb->tcon; |
| 918 | |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 919 | full_path = build_path_from_dentry(direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | if (full_path == NULL) { |
| 921 | FreeXid(xid); |
| 922 | return -ENOMEM; |
| 923 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 924 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 925 | if ((pTcon->ses->capabilities & CAP_UNIX) && |
| 926 | (CIFS_UNIX_POSIX_PATH_OPS_CAP & |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 927 | le64_to_cpu(pTcon->fsUnixInfo.Capability))) { |
| 928 | u32 oplock = 0; |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 929 | FILE_UNIX_BASIC_INFO *pInfo = |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 930 | kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 931 | if (pInfo == NULL) { |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 932 | rc = -ENOMEM; |
| 933 | goto mkdir_out; |
| 934 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 935 | |
Jeff | a8cd925 | 2007-09-13 18:38:50 +0000 | [diff] [blame] | 936 | mode &= ~current->fs->umask; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 937 | rc = CIFSPOSIXCreate(xid, pTcon, SMB_O_DIRECTORY | SMB_O_CREAT, |
| 938 | mode, NULL /* netfid */, pInfo, &oplock, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 939 | full_path, cifs_sb->local_nls, |
| 940 | cifs_sb->mnt_cifs_flags & |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 941 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | c45d707 | 2007-09-17 02:04:21 +0000 | [diff] [blame] | 942 | if (rc == -EOPNOTSUPP) { |
| 943 | kfree(pInfo); |
| 944 | goto mkdir_retry_old; |
| 945 | } else if (rc) { |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 946 | cFYI(1, ("posix mkdir returned 0x%x", rc)); |
| 947 | d_drop(direntry); |
| 948 | } else { |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 949 | int obj_type; |
Cyril Gorcunov | 8f2376a | 2007-10-14 17:58:43 +0000 | [diff] [blame] | 950 | if (pInfo->Type == cpu_to_le32(-1)) { |
| 951 | /* no return info, go query for it */ |
Steve French | 5a07cdf | 2007-09-16 23:12:47 +0000 | [diff] [blame] | 952 | kfree(pInfo); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 953 | goto mkdir_get_info; |
Steve French | 5a07cdf | 2007-09-16 23:12:47 +0000 | [diff] [blame] | 954 | } |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 955 | /*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need |
| 956 | to set uid/gid */ |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 957 | inc_nlink(inode); |
| 958 | if (pTcon->nocase) |
| 959 | direntry->d_op = &cifs_ci_dentry_ops; |
| 960 | else |
| 961 | direntry->d_op = &cifs_dentry_ops; |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 962 | |
| 963 | newinode = new_inode(inode->i_sb); |
Steve French | 5a07cdf | 2007-09-16 23:12:47 +0000 | [diff] [blame] | 964 | if (newinode == NULL) { |
| 965 | kfree(pInfo); |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 966 | goto mkdir_get_info; |
Steve French | 5a07cdf | 2007-09-16 23:12:47 +0000 | [diff] [blame] | 967 | } |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 968 | /* Is an i_ino of zero legal? */ |
| 969 | /* Are there sanity checks we can use to ensure that |
| 970 | the server is really filling in that field? */ |
| 971 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { |
| 972 | newinode->i_ino = |
| 973 | (unsigned long)pInfo->UniqueId; |
| 974 | } /* note ino incremented to unique num in new_inode */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 975 | if (inode->i_sb->s_flags & MS_NOATIME) |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 976 | newinode->i_flags |= S_NOATIME | S_NOCMTIME; |
| 977 | newinode->i_nlink = 2; |
| 978 | |
| 979 | insert_inode_hash(newinode); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 980 | d_instantiate(direntry, newinode); |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 981 | |
| 982 | /* we already checked in POSIXCreate whether |
| 983 | frame was long enough */ |
| 984 | posix_fill_in_inode(direntry->d_inode, |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 985 | pInfo, &obj_type, 1 /* NewInode */); |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 986 | #ifdef CONFIG_CIFS_DEBUG2 |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 987 | cFYI(1, ("instantiated dentry %p %s to inode %p", |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 988 | direntry, direntry->d_name.name, newinode)); |
| 989 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 990 | if (newinode->i_nlink != 2) |
| 991 | cFYI(1, ("unexpected number of links %d", |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 992 | newinode->i_nlink)); |
| 993 | #endif |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 994 | } |
| 995 | kfree(pInfo); |
| 996 | goto mkdir_out; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 997 | } |
Steve French | c45d707 | 2007-09-17 02:04:21 +0000 | [diff] [blame] | 998 | mkdir_retry_old: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | /* BB add setting the equivalent of mode via CreateX w/ACLs */ |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1000 | rc = CIFSSMBMkDir(xid, pTcon, full_path, cifs_sb->local_nls, |
| 1001 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1002 | if (rc) { |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 1003 | cFYI(1, ("cifs_mkdir returned 0x%x", rc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | d_drop(direntry); |
| 1005 | } else { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1006 | mkdir_get_info: |
Dave Hansen | d8c76e6 | 2006-09-30 23:29:04 -0700 | [diff] [blame] | 1007 | inc_nlink(inode); |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1008 | if (pTcon->unix_ext) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | rc = cifs_get_inode_info_unix(&newinode, full_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1010 | inode->i_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | else |
| 1012 | rc = cifs_get_inode_info(&newinode, full_path, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1013 | inode->i_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | |
Steve French | b92327f | 2005-08-22 20:09:43 -0700 | [diff] [blame] | 1015 | if (pTcon->nocase) |
| 1016 | direntry->d_op = &cifs_ci_dentry_ops; |
| 1017 | else |
| 1018 | direntry->d_op = &cifs_dentry_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | d_instantiate(direntry, newinode); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1020 | /* setting nlink not necessary except in cases where we |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1021 | * failed to get it from the server or was set bogus */ |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1022 | if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2)) |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1023 | direntry->d_inode->i_nlink = 2; |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1024 | if (pTcon->unix_ext) { |
Steve French | 3ce53fc | 2007-06-08 14:55:14 +0000 | [diff] [blame] | 1025 | mode &= ~current->fs->umask; |
Steve French | d0d2f2d | 2005-06-02 15:12:36 -0700 | [diff] [blame] | 1026 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | CIFSSMBUnixSetPerms(xid, pTcon, full_path, |
| 1028 | mode, |
Steve French | 8345187 | 2005-12-01 17:12:59 -0800 | [diff] [blame] | 1029 | (__u64)current->fsuid, |
| 1030 | (__u64)current->fsgid, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | 0 /* dev_t */, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1032 | cifs_sb->local_nls, |
| 1033 | cifs_sb->mnt_cifs_flags & |
| 1034 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | } else { |
| 1036 | CIFSSMBUnixSetPerms(xid, pTcon, full_path, |
| 1037 | mode, (__u64)-1, |
| 1038 | (__u64)-1, 0 /* dev_t */, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1039 | cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1040 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1041 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1042 | } |
Steve French | 3ce53fc | 2007-06-08 14:55:14 +0000 | [diff] [blame] | 1043 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | /* BB to be implemented via Windows secrty descriptors |
| 1045 | eg CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, |
| 1046 | -1, -1, local_nls); */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1047 | if (direntry->d_inode) { |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1048 | direntry->d_inode->i_mode = mode; |
Steve French | 25741b3 | 2005-11-29 22:38:43 -0800 | [diff] [blame] | 1049 | direntry->d_inode->i_mode |= S_IFDIR; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1050 | if (cifs_sb->mnt_cifs_flags & |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1051 | CIFS_MOUNT_SET_UID) { |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1052 | direntry->d_inode->i_uid = |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1053 | current->fsuid; |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1054 | direntry->d_inode->i_gid = |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1055 | current->fsgid; |
| 1056 | } |
| 1057 | } |
Steve French | 2a138ebb | 2005-11-29 21:22:19 -0800 | [diff] [blame] | 1058 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1059 | } |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1060 | mkdir_out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | kfree(full_path); |
| 1062 | FreeXid(xid); |
| 1063 | return rc; |
| 1064 | } |
| 1065 | |
| 1066 | int cifs_rmdir(struct inode *inode, struct dentry *direntry) |
| 1067 | { |
| 1068 | int rc = 0; |
| 1069 | int xid; |
| 1070 | struct cifs_sb_info *cifs_sb; |
| 1071 | struct cifsTconInfo *pTcon; |
| 1072 | char *full_path = NULL; |
| 1073 | struct cifsInodeInfo *cifsInode; |
| 1074 | |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 1075 | cFYI(1, ("cifs_rmdir, inode = 0x%p", inode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1076 | |
| 1077 | xid = GetXid(); |
| 1078 | |
| 1079 | cifs_sb = CIFS_SB(inode->i_sb); |
| 1080 | pTcon = cifs_sb->tcon; |
| 1081 | |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 1082 | full_path = build_path_from_dentry(direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | if (full_path == NULL) { |
| 1084 | FreeXid(xid); |
| 1085 | return -ENOMEM; |
| 1086 | } |
| 1087 | |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1088 | rc = CIFSSMBRmDir(xid, pTcon, full_path, cifs_sb->local_nls, |
| 1089 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1090 | |
| 1091 | if (!rc) { |
Dave Hansen | 9a53c3a | 2006-09-30 23:29:03 -0700 | [diff] [blame] | 1092 | drop_nlink(inode); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1093 | spin_lock(&direntry->d_inode->i_lock); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1094 | i_size_write(direntry->d_inode, 0); |
Dave Hansen | ce71ec3 | 2006-09-30 23:29:06 -0700 | [diff] [blame] | 1095 | clear_nlink(direntry->d_inode); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1096 | spin_unlock(&direntry->d_inode->i_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | } |
| 1098 | |
| 1099 | cifsInode = CIFS_I(direntry->d_inode); |
| 1100 | cifsInode->time = 0; /* force revalidate to go get info when |
| 1101 | needed */ |
| 1102 | direntry->d_inode->i_ctime = inode->i_ctime = inode->i_mtime = |
| 1103 | current_fs_time(inode->i_sb); |
| 1104 | |
| 1105 | kfree(full_path); |
| 1106 | FreeXid(xid); |
| 1107 | return rc; |
| 1108 | } |
| 1109 | |
| 1110 | int cifs_rename(struct inode *source_inode, struct dentry *source_direntry, |
| 1111 | struct inode *target_inode, struct dentry *target_direntry) |
| 1112 | { |
| 1113 | char *fromName; |
| 1114 | char *toName; |
| 1115 | struct cifs_sb_info *cifs_sb_source; |
| 1116 | struct cifs_sb_info *cifs_sb_target; |
| 1117 | struct cifsTconInfo *pTcon; |
| 1118 | int xid; |
| 1119 | int rc = 0; |
| 1120 | |
| 1121 | xid = GetXid(); |
| 1122 | |
| 1123 | cifs_sb_target = CIFS_SB(target_inode->i_sb); |
| 1124 | cifs_sb_source = CIFS_SB(source_inode->i_sb); |
| 1125 | pTcon = cifs_sb_source->tcon; |
| 1126 | |
| 1127 | if (pTcon != cifs_sb_target->tcon) { |
| 1128 | FreeXid(xid); |
| 1129 | return -EXDEV; /* BB actually could be allowed if same server, |
| 1130 | but different share. |
| 1131 | Might eventually add support for this */ |
| 1132 | } |
| 1133 | |
| 1134 | /* we already have the rename sem so we do not need to grab it again |
| 1135 | here to protect the path integrity */ |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 1136 | fromName = build_path_from_dentry(source_direntry); |
| 1137 | toName = build_path_from_dentry(target_direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | if ((fromName == NULL) || (toName == NULL)) { |
| 1139 | rc = -ENOMEM; |
| 1140 | goto cifs_rename_exit; |
| 1141 | } |
| 1142 | |
| 1143 | rc = CIFSSMBRename(xid, pTcon, fromName, toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1144 | cifs_sb_source->local_nls, |
| 1145 | cifs_sb_source->mnt_cifs_flags & |
| 1146 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | if (rc == -EEXIST) { |
| 1148 | /* check if they are the same file because rename of hardlinked |
| 1149 | files is a noop */ |
| 1150 | FILE_UNIX_BASIC_INFO *info_buf_source; |
| 1151 | FILE_UNIX_BASIC_INFO *info_buf_target; |
| 1152 | |
| 1153 | info_buf_source = |
| 1154 | kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); |
| 1155 | if (info_buf_source != NULL) { |
| 1156 | info_buf_target = info_buf_source + 1; |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1157 | if (pTcon->unix_ext) |
Steve French | 8e87d4d | 2006-11-02 03:45:24 +0000 | [diff] [blame] | 1158 | rc = CIFSSMBUnixQPathInfo(xid, pTcon, fromName, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1159 | info_buf_source, |
Steve French | 8e87d4d | 2006-11-02 03:45:24 +0000 | [diff] [blame] | 1160 | cifs_sb_source->local_nls, |
| 1161 | cifs_sb_source->mnt_cifs_flags & |
| 1162 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
| 1163 | /* else rc is still EEXIST so will fall through to |
| 1164 | unlink the target and retry rename */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1165 | if (rc == 0) { |
| 1166 | rc = CIFSSMBUnixQPathInfo(xid, pTcon, toName, |
| 1167 | info_buf_target, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1168 | cifs_sb_target->local_nls, |
| 1169 | /* remap based on source sb */ |
| 1170 | cifs_sb_source->mnt_cifs_flags & |
| 1171 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1172 | } |
| 1173 | if ((rc == 0) && |
| 1174 | (info_buf_source->UniqueId == |
| 1175 | info_buf_target->UniqueId)) { |
| 1176 | /* do not rename since the files are hardlinked which |
| 1177 | is a noop */ |
| 1178 | } else { |
| 1179 | /* we either can not tell the files are hardlinked |
| 1180 | (as with Windows servers) or files are not |
| 1181 | hardlinked so delete the target manually before |
| 1182 | renaming to follow POSIX rather than Windows |
| 1183 | semantics */ |
| 1184 | cifs_unlink(target_inode, target_direntry); |
| 1185 | rc = CIFSSMBRename(xid, pTcon, fromName, |
| 1186 | toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1187 | cifs_sb_source->local_nls, |
| 1188 | cifs_sb_source->mnt_cifs_flags |
| 1189 | & CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1190 | } |
| 1191 | kfree(info_buf_source); |
| 1192 | } /* if we can not get memory just leave rc as EEXIST */ |
| 1193 | } |
| 1194 | |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1195 | if (rc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | cFYI(1, ("rename rc %d", rc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1197 | |
| 1198 | if ((rc == -EIO) || (rc == -EEXIST)) { |
| 1199 | int oplock = FALSE; |
| 1200 | __u16 netfid; |
| 1201 | |
| 1202 | /* BB FIXME Is Generic Read correct for rename? */ |
| 1203 | /* if renaming directory - we should not say CREATE_NOT_DIR, |
| 1204 | need to test renaming open directory, also GENERIC_READ |
| 1205 | might not right be right access to request */ |
| 1206 | rc = CIFSSMBOpen(xid, pTcon, fromName, FILE_OPEN, GENERIC_READ, |
| 1207 | CREATE_NOT_DIR, &netfid, &oplock, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1208 | cifs_sb_source->local_nls, |
| 1209 | cifs_sb_source->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1210 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1211 | if (rc == 0) { |
Steve French | 8e87d4d | 2006-11-02 03:45:24 +0000 | [diff] [blame] | 1212 | rc = CIFSSMBRenameOpenFile(xid, pTcon, netfid, toName, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1213 | cifs_sb_source->local_nls, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1214 | cifs_sb_source->mnt_cifs_flags & |
| 1215 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1216 | CIFSSMBClose(xid, pTcon, netfid); |
| 1217 | } |
| 1218 | } |
| 1219 | |
| 1220 | cifs_rename_exit: |
| 1221 | kfree(fromName); |
| 1222 | kfree(toName); |
| 1223 | FreeXid(xid); |
| 1224 | return rc; |
| 1225 | } |
| 1226 | |
| 1227 | int cifs_revalidate(struct dentry *direntry) |
| 1228 | { |
| 1229 | int xid; |
Jeff Layton | cea2180 | 2007-11-20 23:19:03 +0000 | [diff] [blame] | 1230 | int rc = 0, wbrc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1231 | char *full_path; |
| 1232 | struct cifs_sb_info *cifs_sb; |
| 1233 | struct cifsInodeInfo *cifsInode; |
| 1234 | loff_t local_size; |
| 1235 | struct timespec local_mtime; |
| 1236 | int invalidate_inode = FALSE; |
| 1237 | |
| 1238 | if (direntry->d_inode == NULL) |
| 1239 | return -ENOENT; |
| 1240 | |
| 1241 | cifsInode = CIFS_I(direntry->d_inode); |
| 1242 | |
| 1243 | if (cifsInode == NULL) |
| 1244 | return -ENOENT; |
| 1245 | |
| 1246 | /* no sense revalidating inode info on file that no one can write */ |
| 1247 | if (CIFS_I(direntry->d_inode)->clientCanCacheRead) |
| 1248 | return rc; |
| 1249 | |
| 1250 | xid = GetXid(); |
| 1251 | |
| 1252 | cifs_sb = CIFS_SB(direntry->d_sb); |
| 1253 | |
| 1254 | /* can not safely grab the rename sem here if rename calls revalidate |
| 1255 | since that would deadlock */ |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 1256 | full_path = build_path_from_dentry(direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1257 | if (full_path == NULL) { |
| 1258 | FreeXid(xid); |
| 1259 | return -ENOMEM; |
| 1260 | } |
| 1261 | cFYI(1, ("Revalidate: %s inode 0x%p count %d dentry: 0x%p d_time %ld " |
| 1262 | "jiffies %ld", full_path, direntry->d_inode, |
| 1263 | direntry->d_inode->i_count.counter, direntry, |
| 1264 | direntry->d_time, jiffies)); |
| 1265 | |
| 1266 | if (cifsInode->time == 0) { |
| 1267 | /* was set to zero previously to force revalidate */ |
| 1268 | } else if (time_before(jiffies, cifsInode->time + HZ) && |
| 1269 | lookupCacheEnabled) { |
| 1270 | if ((S_ISREG(direntry->d_inode->i_mode) == 0) || |
| 1271 | (direntry->d_inode->i_nlink == 1)) { |
| 1272 | kfree(full_path); |
| 1273 | FreeXid(xid); |
| 1274 | return rc; |
| 1275 | } else { |
| 1276 | cFYI(1, ("Have to revalidate file due to hardlinks")); |
| 1277 | } |
| 1278 | } |
| 1279 | |
| 1280 | /* save mtime and size */ |
| 1281 | local_mtime = direntry->d_inode->i_mtime; |
| 1282 | local_size = direntry->d_inode->i_size; |
| 1283 | |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1284 | if (cifs_sb->tcon->unix_ext) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | rc = cifs_get_inode_info_unix(&direntry->d_inode, full_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1286 | direntry->d_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1287 | if (rc) { |
| 1288 | cFYI(1, ("error on getting revalidate info %d", rc)); |
| 1289 | /* if (rc != -ENOENT) |
| 1290 | rc = 0; */ /* BB should we cache info on |
| 1291 | certain errors? */ |
| 1292 | } |
| 1293 | } else { |
| 1294 | rc = cifs_get_inode_info(&direntry->d_inode, full_path, NULL, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1295 | direntry->d_sb, xid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | if (rc) { |
| 1297 | cFYI(1, ("error on getting revalidate info %d", rc)); |
| 1298 | /* if (rc != -ENOENT) |
| 1299 | rc = 0; */ /* BB should we cache info on |
| 1300 | certain errors? */ |
| 1301 | } |
| 1302 | } |
| 1303 | /* should we remap certain errors, access denied?, to zero */ |
| 1304 | |
| 1305 | /* if not oplocked, we invalidate inode pages if mtime or file size |
| 1306 | had changed on server */ |
| 1307 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1308 | if (timespec_equal(&local_mtime, &direntry->d_inode->i_mtime) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1309 | (local_size == direntry->d_inode->i_size)) { |
| 1310 | cFYI(1, ("cifs_revalidate - inode unchanged")); |
| 1311 | } else { |
| 1312 | /* file may have changed on server */ |
| 1313 | if (cifsInode->clientCanCacheRead) { |
| 1314 | /* no need to invalidate inode pages since we were the |
| 1315 | only ones who could have modified the file and the |
| 1316 | server copy is staler than ours */ |
| 1317 | } else { |
| 1318 | invalidate_inode = TRUE; |
| 1319 | } |
| 1320 | } |
| 1321 | |
| 1322 | /* can not grab this sem since kernel filesys locking documentation |
Jes Sorensen | 1b1dcc1 | 2006-01-09 15:59:24 -0800 | [diff] [blame] | 1323 | indicates i_mutex may be taken by the kernel on lookup and rename |
| 1324 | which could deadlock if we grab the i_mutex here as well */ |
| 1325 | /* mutex_lock(&direntry->d_inode->i_mutex);*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1326 | /* need to write out dirty pages here */ |
| 1327 | if (direntry->d_inode->i_mapping) { |
| 1328 | /* do we need to lock inode until after invalidate completes |
| 1329 | below? */ |
Jeff Layton | cea2180 | 2007-11-20 23:19:03 +0000 | [diff] [blame] | 1330 | wbrc = filemap_fdatawrite(direntry->d_inode->i_mapping); |
| 1331 | if (wbrc) |
| 1332 | CIFS_I(direntry->d_inode)->write_behind_rc = wbrc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | } |
| 1334 | if (invalidate_inode) { |
Steve French | 3abb927 | 2005-11-28 08:16:13 -0800 | [diff] [blame] | 1335 | /* shrink_dcache not necessary now that cifs dentry ops |
| 1336 | are exported for negative dentries */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1337 | /* if (S_ISDIR(direntry->d_inode->i_mode)) |
Steve French | 3abb927 | 2005-11-28 08:16:13 -0800 | [diff] [blame] | 1338 | shrink_dcache_parent(direntry); */ |
| 1339 | if (S_ISREG(direntry->d_inode->i_mode)) { |
| 1340 | if (direntry->d_inode->i_mapping) |
Jeff Layton | cea2180 | 2007-11-20 23:19:03 +0000 | [diff] [blame] | 1341 | wbrc = filemap_fdatawait(direntry->d_inode->i_mapping); |
| 1342 | if (wbrc) |
| 1343 | CIFS_I(direntry->d_inode)->write_behind_rc = wbrc; |
Steve French | 3abb927 | 2005-11-28 08:16:13 -0800 | [diff] [blame] | 1344 | /* may eventually have to do this for open files too */ |
| 1345 | if (list_empty(&(cifsInode->openFileList))) { |
| 1346 | /* changed on server - flush read ahead pages */ |
| 1347 | cFYI(1, ("Invalidating read ahead data on " |
| 1348 | "closed file")); |
| 1349 | invalidate_remote_inode(direntry->d_inode); |
| 1350 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1351 | } |
| 1352 | } |
Jes Sorensen | 1b1dcc1 | 2006-01-09 15:59:24 -0800 | [diff] [blame] | 1353 | /* mutex_unlock(&direntry->d_inode->i_mutex); */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1354 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | kfree(full_path); |
| 1356 | FreeXid(xid); |
| 1357 | return rc; |
| 1358 | } |
| 1359 | |
| 1360 | int cifs_getattr(struct vfsmount *mnt, struct dentry *dentry, |
| 1361 | struct kstat *stat) |
| 1362 | { |
| 1363 | int err = cifs_revalidate(dentry); |
Steve French | 5fe14c8 | 2006-11-07 19:26:33 +0000 | [diff] [blame] | 1364 | if (!err) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1365 | generic_fillattr(dentry->d_inode, stat); |
Steve French | 5fe14c8 | 2006-11-07 19:26:33 +0000 | [diff] [blame] | 1366 | stat->blksize = CIFS_MAX_MSGSIZE; |
| 1367 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | return err; |
| 1369 | } |
| 1370 | |
| 1371 | static int cifs_truncate_page(struct address_space *mapping, loff_t from) |
| 1372 | { |
| 1373 | pgoff_t index = from >> PAGE_CACHE_SHIFT; |
| 1374 | unsigned offset = from & (PAGE_CACHE_SIZE - 1); |
| 1375 | struct page *page; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | int rc = 0; |
| 1377 | |
| 1378 | page = grab_cache_page(mapping, index); |
| 1379 | if (!page) |
| 1380 | return -ENOMEM; |
| 1381 | |
Christoph Lameter | eebd2aa | 2008-02-04 22:28:29 -0800 | [diff] [blame] | 1382 | zero_user_segment(page, offset, PAGE_CACHE_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | unlock_page(page); |
| 1384 | page_cache_release(page); |
| 1385 | return rc; |
| 1386 | } |
| 1387 | |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1388 | static int cifs_vmtruncate(struct inode *inode, loff_t offset) |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1389 | { |
| 1390 | struct address_space *mapping = inode->i_mapping; |
| 1391 | unsigned long limit; |
| 1392 | |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1393 | spin_lock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1394 | if (inode->i_size < offset) |
| 1395 | goto do_expand; |
| 1396 | /* |
| 1397 | * truncation of in-use swapfiles is disallowed - it would cause |
| 1398 | * subsequent swapout to scribble on the now-freed blocks. |
| 1399 | */ |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1400 | if (IS_SWAPFILE(inode)) { |
| 1401 | spin_unlock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1402 | goto out_busy; |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1403 | } |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1404 | i_size_write(inode, offset); |
| 1405 | spin_unlock(&inode->i_lock); |
Steve French | 8064ab4 | 2007-08-22 22:12:07 +0000 | [diff] [blame] | 1406 | /* |
| 1407 | * unmap_mapping_range is called twice, first simply for efficiency |
| 1408 | * so that truncate_inode_pages does fewer single-page unmaps. However |
| 1409 | * after this first call, and before truncate_inode_pages finishes, |
| 1410 | * it is possible for private pages to be COWed, which remain after |
| 1411 | * truncate_inode_pages finishes, hence the second unmap_mapping_range |
| 1412 | * call must be made for correctness. |
| 1413 | */ |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1414 | unmap_mapping_range(mapping, offset + PAGE_SIZE - 1, 0, 1); |
| 1415 | truncate_inode_pages(mapping, offset); |
Steve French | 8064ab4 | 2007-08-22 22:12:07 +0000 | [diff] [blame] | 1416 | unmap_mapping_range(mapping, offset + PAGE_SIZE - 1, 0, 1); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1417 | goto out_truncate; |
| 1418 | |
| 1419 | do_expand: |
| 1420 | limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur; |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1421 | if (limit != RLIM_INFINITY && offset > limit) { |
| 1422 | spin_unlock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1423 | goto out_sig; |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1424 | } |
| 1425 | if (offset > inode->i_sb->s_maxbytes) { |
| 1426 | spin_unlock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1427 | goto out_big; |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1428 | } |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1429 | i_size_write(inode, offset); |
Steve French | ba6a46a | 2007-02-26 20:06:29 +0000 | [diff] [blame] | 1430 | spin_unlock(&inode->i_lock); |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1431 | out_truncate: |
| 1432 | if (inode->i_op && inode->i_op->truncate) |
| 1433 | inode->i_op->truncate(inode); |
| 1434 | return 0; |
| 1435 | out_sig: |
| 1436 | send_sig(SIGXFSZ, current, 0); |
| 1437 | out_big: |
| 1438 | return -EFBIG; |
| 1439 | out_busy: |
| 1440 | return -ETXTBSY; |
| 1441 | } |
| 1442 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1443 | int cifs_setattr(struct dentry *direntry, struct iattr *attrs) |
| 1444 | { |
| 1445 | int xid; |
| 1446 | struct cifs_sb_info *cifs_sb; |
| 1447 | struct cifsTconInfo *pTcon; |
| 1448 | char *full_path = NULL; |
| 1449 | int rc = -EACCES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1450 | struct cifsFileInfo *open_file = NULL; |
| 1451 | FILE_BASIC_INFO time_buf; |
| 1452 | int set_time = FALSE; |
Steve French | 066fcb0 | 2007-03-23 00:45:08 +0000 | [diff] [blame] | 1453 | int set_dosattr = FALSE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | __u64 mode = 0xFFFFFFFFFFFFFFFFULL; |
| 1455 | __u64 uid = 0xFFFFFFFFFFFFFFFFULL; |
| 1456 | __u64 gid = 0xFFFFFFFFFFFFFFFFULL; |
| 1457 | struct cifsInodeInfo *cifsInode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | |
| 1459 | xid = GetXid(); |
| 1460 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 1461 | cFYI(1, ("setattr on file %s attrs->iavalid 0x%x", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | direntry->d_name.name, attrs->ia_valid)); |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1463 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1464 | cifs_sb = CIFS_SB(direntry->d_inode->i_sb); |
| 1465 | pTcon = cifs_sb->tcon; |
| 1466 | |
Steve French | 2a138ebb | 2005-11-29 21:22:19 -0800 | [diff] [blame] | 1467 | if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) == 0) { |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1468 | /* check if we have permission to change attrs */ |
| 1469 | rc = inode_change_ok(direntry->d_inode, attrs); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1470 | if (rc < 0) { |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1471 | FreeXid(xid); |
| 1472 | return rc; |
| 1473 | } else |
| 1474 | rc = 0; |
| 1475 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1476 | |
Steve French | 7f57356 | 2005-08-30 11:32:14 -0700 | [diff] [blame] | 1477 | full_path = build_path_from_dentry(direntry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | if (full_path == NULL) { |
| 1479 | FreeXid(xid); |
| 1480 | return -ENOMEM; |
| 1481 | } |
| 1482 | cifsInode = CIFS_I(direntry->d_inode); |
| 1483 | |
| 1484 | /* BB check if we need to refresh inode from server now ? BB */ |
| 1485 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1486 | if (attrs->ia_valid & ATTR_SIZE) { |
Jeff Layton | cea2180 | 2007-11-20 23:19:03 +0000 | [diff] [blame] | 1487 | /* |
| 1488 | Flush data before changing file size on server. If the |
| 1489 | flush returns error, store it to report later and continue. |
| 1490 | BB: This should be smarter. Why bother flushing pages that |
| 1491 | will be truncated anyway? Also, should we error out here if |
| 1492 | the flush returns error? |
| 1493 | */ |
| 1494 | rc = filemap_write_and_wait(direntry->d_inode->i_mapping); |
| 1495 | if (rc != 0) { |
| 1496 | CIFS_I(direntry->d_inode)->write_behind_rc = rc; |
| 1497 | rc = 0; |
| 1498 | } |
| 1499 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1500 | /* To avoid spurious oplock breaks from server, in the case of |
| 1501 | inodes that we already have open, avoid doing path based |
| 1502 | setting of file size if we can do it by handle. |
| 1503 | This keeps our caching token (oplock) and avoids timeouts |
| 1504 | when the local oplock break takes longer to flush |
| 1505 | writebehind data than the SMB timeout for the SetPathInfo |
| 1506 | request would allow */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 1507 | |
Steve French | 6148a74 | 2005-10-05 12:23:19 -0700 | [diff] [blame] | 1508 | open_file = find_writable_file(cifsInode); |
| 1509 | if (open_file) { |
| 1510 | __u16 nfid = open_file->netfid; |
| 1511 | __u32 npid = open_file->pid; |
| 1512 | rc = CIFSSMBSetFileSize(xid, pTcon, attrs->ia_size, |
| 1513 | nfid, npid, FALSE); |
Steve French | 23e7dd7 | 2005-10-20 13:44:56 -0700 | [diff] [blame] | 1514 | atomic_dec(&open_file->wrtPending); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1515 | cFYI(1, ("SetFSize for attrs rc = %d", rc)); |
| 1516 | if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { |
Steve French | 77159b4 | 2007-08-31 01:10:17 +0000 | [diff] [blame] | 1517 | unsigned int bytes_written; |
Steve French | 6148a74 | 2005-10-05 12:23:19 -0700 | [diff] [blame] | 1518 | rc = CIFSSMBWrite(xid, pTcon, |
| 1519 | nfid, 0, attrs->ia_size, |
| 1520 | &bytes_written, NULL, NULL, |
| 1521 | 1 /* 45 seconds */); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1522 | cFYI(1, ("Wrt seteof rc %d", rc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1523 | } |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1524 | } else |
Steve French | 6473a55 | 2005-11-29 20:20:10 -0800 | [diff] [blame] | 1525 | rc = -EINVAL; |
| 1526 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | if (rc != 0) { |
| 1528 | /* Set file size by pathname rather than by handle |
| 1529 | either because no valid, writeable file handle for |
| 1530 | it was found or because there was an error setting |
| 1531 | it by handle */ |
| 1532 | rc = CIFSSMBSetEOF(xid, pTcon, full_path, |
| 1533 | attrs->ia_size, FALSE, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1534 | cifs_sb->local_nls, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1535 | cifs_sb->mnt_cifs_flags & |
| 1536 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1537 | cFYI(1, ("SetEOF by path (setattrs) rc = %d", rc)); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1538 | if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1539 | __u16 netfid; |
| 1540 | int oplock = FALSE; |
| 1541 | |
| 1542 | rc = SMBLegacyOpen(xid, pTcon, full_path, |
| 1543 | FILE_OPEN, |
| 1544 | SYNCHRONIZE | FILE_WRITE_ATTRIBUTES, |
| 1545 | CREATE_NOT_DIR, &netfid, &oplock, |
| 1546 | NULL, cifs_sb->local_nls, |
| 1547 | cifs_sb->mnt_cifs_flags & |
| 1548 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1549 | if (rc == 0) { |
Steve French | 77159b4 | 2007-08-31 01:10:17 +0000 | [diff] [blame] | 1550 | unsigned int bytes_written; |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1551 | rc = CIFSSMBWrite(xid, pTcon, |
| 1552 | netfid, 0, |
| 1553 | attrs->ia_size, |
| 1554 | &bytes_written, NULL, |
| 1555 | NULL, 1 /* 45 sec */); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1556 | cFYI(1, ("wrt seteof rc %d", rc)); |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1557 | CIFSSMBClose(xid, pTcon, netfid); |
| 1558 | } |
| 1559 | |
| 1560 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | } |
| 1562 | |
| 1563 | /* Server is ok setting allocation size implicitly - no need |
| 1564 | to call: |
| 1565 | CIFSSMBSetEOF(xid, pTcon, full_path, attrs->ia_size, TRUE, |
| 1566 | cifs_sb->local_nls); |
| 1567 | */ |
| 1568 | |
| 1569 | if (rc == 0) { |
Steve French | 3677db1 | 2007-02-26 16:46:11 +0000 | [diff] [blame] | 1570 | rc = cifs_vmtruncate(direntry->d_inode, attrs->ia_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1571 | cifs_truncate_page(direntry->d_inode->i_mapping, |
| 1572 | direntry->d_inode->i_size); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1573 | } else |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1574 | goto cifs_setattr_exit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1575 | } |
| 1576 | if (attrs->ia_valid & ATTR_UID) { |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1577 | cFYI(1, ("UID changed to %d", attrs->ia_uid)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1578 | uid = attrs->ia_uid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1579 | } |
| 1580 | if (attrs->ia_valid & ATTR_GID) { |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1581 | cFYI(1, ("GID changed to %d", attrs->ia_gid)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1582 | gid = attrs->ia_gid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1583 | } |
| 1584 | |
| 1585 | time_buf.Attributes = 0; |
Jeff Layton | d32c4f2 | 2007-10-18 03:05:22 -0700 | [diff] [blame] | 1586 | |
| 1587 | /* skip mode change if it's just for clearing setuid/setgid */ |
| 1588 | if (attrs->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID)) |
| 1589 | attrs->ia_valid &= ~ATTR_MODE; |
| 1590 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1591 | if (attrs->ia_valid & ATTR_MODE) { |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1592 | cFYI(1, ("Mode changed to 0x%x", attrs->ia_mode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1593 | mode = attrs->ia_mode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1594 | } |
| 1595 | |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 1596 | if ((pTcon->unix_ext) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | && (attrs->ia_valid & (ATTR_MODE | ATTR_GID | ATTR_UID))) |
| 1598 | rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, uid, gid, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1599 | 0 /* dev_t */, cifs_sb->local_nls, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1600 | cifs_sb->mnt_cifs_flags & |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1601 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1602 | else if (attrs->ia_valid & ATTR_MODE) { |
Steve French | cdbce9c | 2005-11-19 21:04:52 -0800 | [diff] [blame] | 1603 | rc = 0; |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 1604 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
| 1605 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) |
| 1606 | rc = mode_to_acl(direntry->d_inode, full_path, mode); |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 1607 | else if ((mode & S_IWUGO) == 0) { |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 1608 | #else |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 1609 | if ((mode & S_IWUGO) == 0) { |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 1610 | #endif |
Steve French | f6d0998 | 2008-01-08 23:18:22 +0000 | [diff] [blame] | 1611 | /* not writeable */ |
Steve French | 066fcb0 | 2007-03-23 00:45:08 +0000 | [diff] [blame] | 1612 | if ((cifsInode->cifsAttrs & ATTR_READONLY) == 0) { |
| 1613 | set_dosattr = TRUE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1614 | time_buf.Attributes = |
| 1615 | cpu_to_le32(cifsInode->cifsAttrs | |
| 1616 | ATTR_READONLY); |
Steve French | 066fcb0 | 2007-03-23 00:45:08 +0000 | [diff] [blame] | 1617 | } |
Steve French | 5268df2 | 2007-04-06 19:28:16 +0000 | [diff] [blame] | 1618 | } else if (cifsInode->cifsAttrs & ATTR_READONLY) { |
| 1619 | /* If file is readonly on server, we would |
| 1620 | not be able to write to it - so if any write |
| 1621 | bit is enabled for user or group or other we |
| 1622 | need to at least try to remove r/o dos attr */ |
| 1623 | set_dosattr = TRUE; |
| 1624 | time_buf.Attributes = cpu_to_le32(cifsInode->cifsAttrs & |
| 1625 | (~ATTR_READONLY)); |
| 1626 | /* Windows ignores set to zero */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1627 | if (time_buf.Attributes == 0) |
Steve French | 5268df2 | 2007-04-06 19:28:16 +0000 | [diff] [blame] | 1628 | time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1629 | } |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 1630 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
| 1631 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) |
| 1632 | mode_to_acl(direntry->d_inode, full_path, mode); |
| 1633 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1634 | } |
| 1635 | |
| 1636 | if (attrs->ia_valid & ATTR_ATIME) { |
| 1637 | set_time = TRUE; |
| 1638 | time_buf.LastAccessTime = |
| 1639 | cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_atime)); |
| 1640 | } else |
| 1641 | time_buf.LastAccessTime = 0; |
| 1642 | |
| 1643 | if (attrs->ia_valid & ATTR_MTIME) { |
| 1644 | set_time = TRUE; |
| 1645 | time_buf.LastWriteTime = |
| 1646 | cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_mtime)); |
| 1647 | } else |
| 1648 | time_buf.LastWriteTime = 0; |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1649 | /* Do not set ctime explicitly unless other time |
| 1650 | stamps are changed explicitly (i.e. by utime() |
| 1651 | since we would then have a mix of client and |
| 1652 | server times */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1653 | |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1654 | if (set_time && (attrs->ia_valid & ATTR_CTIME)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1655 | set_time = TRUE; |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1656 | /* Although Samba throws this field away |
| 1657 | it may be useful to Windows - but we do |
| 1658 | not want to set ctime unless some other |
| 1659 | timestamp is changing */ |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 1660 | cFYI(1, ("CIFS - CTIME changed")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1661 | time_buf.ChangeTime = |
| 1662 | cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_ctime)); |
| 1663 | } else |
| 1664 | time_buf.ChangeTime = 0; |
| 1665 | |
Steve French | 066fcb0 | 2007-03-23 00:45:08 +0000 | [diff] [blame] | 1666 | if (set_time || set_dosattr) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1667 | time_buf.CreationTime = 0; /* do not change */ |
| 1668 | /* In the future we should experiment - try setting timestamps |
| 1669 | via Handle (SetFileInfo) instead of by path */ |
| 1670 | if (!(pTcon->ses->flags & CIFS_SES_NT4)) |
| 1671 | rc = CIFSSMBSetTimes(xid, pTcon, full_path, &time_buf, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1672 | cifs_sb->local_nls, |
| 1673 | cifs_sb->mnt_cifs_flags & |
| 1674 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1675 | else |
| 1676 | rc = -EOPNOTSUPP; |
| 1677 | |
| 1678 | if (rc == -EOPNOTSUPP) { |
| 1679 | int oplock = FALSE; |
| 1680 | __u16 netfid; |
| 1681 | |
| 1682 | cFYI(1, ("calling SetFileInfo since SetPathInfo for " |
| 1683 | "times not supported by this server")); |
| 1684 | /* BB we could scan to see if we already have it open |
| 1685 | and pass in pid of opener to function */ |
| 1686 | rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, |
| 1687 | SYNCHRONIZE | FILE_WRITE_ATTRIBUTES, |
| 1688 | CREATE_NOT_DIR, &netfid, &oplock, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1689 | NULL, cifs_sb->local_nls, |
| 1690 | cifs_sb->mnt_cifs_flags & |
| 1691 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1692 | if (rc == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1693 | rc = CIFSSMBSetFileTimes(xid, pTcon, &time_buf, |
| 1694 | netfid); |
| 1695 | CIFSSMBClose(xid, pTcon, netfid); |
| 1696 | } else { |
| 1697 | /* BB For even older servers we could convert time_buf |
| 1698 | into old DOS style which uses two second |
| 1699 | granularity */ |
| 1700 | |
| 1701 | /* rc = CIFSSMBSetTimesLegacy(xid, pTcon, full_path, |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1702 | &time_buf, cifs_sb->local_nls); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | } |
| 1704 | } |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1705 | /* Even if error on time set, no sense failing the call if |
| 1706 | the server would set the time to a reasonable value anyway, |
| 1707 | and this check ensures that we are not being called from |
| 1708 | sys_utimes in which case we ought to fail the call back to |
| 1709 | the user when the server rejects the call */ |
Steve French | fb8c4b1 | 2007-07-10 01:16:18 +0000 | [diff] [blame] | 1710 | if ((rc) && (attrs->ia_valid & |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1711 | (ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE))) |
| 1712 | rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1713 | } |
| 1714 | |
| 1715 | /* do not need local check to inode_check_ok since the server does |
| 1716 | that */ |
| 1717 | if (!rc) |
| 1718 | rc = inode_setattr(direntry->d_inode, attrs); |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1719 | cifs_setattr_exit: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1720 | kfree(full_path); |
| 1721 | FreeXid(xid); |
| 1722 | return rc; |
| 1723 | } |
| 1724 | |
Steve French | 99ee4db | 2007-02-27 05:35:17 +0000 | [diff] [blame] | 1725 | #if 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1726 | void cifs_delete_inode(struct inode *inode) |
| 1727 | { |
Steve French | 26a21b9 | 2006-05-31 18:05:34 +0000 | [diff] [blame] | 1728 | cFYI(1, ("In cifs_delete_inode, inode = 0x%p", inode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1729 | /* may have to add back in if and when safe distributed caching of |
| 1730 | directories added e.g. via FindNotify */ |
| 1731 | } |
Steve French | 99ee4db | 2007-02-27 05:35:17 +0000 | [diff] [blame] | 1732 | #endif |