blob: d4d142c2edd40be792ab9bf602967ee2f61ea7f8 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Copyright (C) International Business Machines Corp., 2000-2004
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
Dave Kleikamp63f83c92006-10-02 09:55:27 -05006 * the Free Software Foundation; either version 2 of the License, or
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * (at your option) any later version.
Dave Kleikamp63f83c92006-10-02 09:55:27 -05008 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
12 * the GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
Dave Kleikamp63f83c92006-10-02 09:55:27 -050015 * along with this program; if not, write to the Free Software
Linus Torvalds1da177e2005-04-16 15:20:36 -070016 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19#include <linux/fs.h>
20#include <linux/quotaops.h>
21#include "jfs_incore.h"
Dave Kleikamp1868f4a2005-05-04 15:29:35 -050022#include "jfs_inode.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include "jfs_filsys.h"
24#include "jfs_imap.h"
25#include "jfs_dinode.h"
26#include "jfs_debug.h"
27
Herbert Poetzlfa3241d2006-02-09 09:09:16 -060028
29void jfs_set_inode_flags(struct inode *inode)
30{
31 unsigned int flags = JFS_IP(inode)->mode2;
32
33 inode->i_flags &= ~(S_IMMUTABLE | S_APPEND |
34 S_NOATIME | S_DIRSYNC | S_SYNC);
35
36 if (flags & JFS_IMMUTABLE_FL)
37 inode->i_flags |= S_IMMUTABLE;
38 if (flags & JFS_APPEND_FL)
39 inode->i_flags |= S_APPEND;
40 if (flags & JFS_NOATIME_FL)
41 inode->i_flags |= S_NOATIME;
42 if (flags & JFS_DIRSYNC_FL)
43 inode->i_flags |= S_DIRSYNC;
44 if (flags & JFS_SYNC_FL)
45 inode->i_flags |= S_SYNC;
46}
47
Dave Kleikamp3e2221c2007-04-25 09:36:20 -050048void jfs_get_inode_flags(struct jfs_inode_info *jfs_ip)
49{
50 unsigned int flags = jfs_ip->vfs_inode.i_flags;
51
52 jfs_ip->mode2 &= ~(JFS_IMMUTABLE_FL | JFS_APPEND_FL | JFS_NOATIME_FL |
53 JFS_DIRSYNC_FL | JFS_SYNC_FL);
54 if (flags & S_IMMUTABLE)
55 jfs_ip->mode2 |= JFS_IMMUTABLE_FL;
56 if (flags & S_APPEND)
57 jfs_ip->mode2 |= JFS_APPEND_FL;
58 if (flags & S_NOATIME)
59 jfs_ip->mode2 |= JFS_NOATIME_FL;
60 if (flags & S_DIRSYNC)
61 jfs_ip->mode2 |= JFS_DIRSYNC_FL;
62 if (flags & S_SYNC)
63 jfs_ip->mode2 |= JFS_SYNC_FL;
64}
65
Linus Torvalds1da177e2005-04-16 15:20:36 -070066/*
67 * NAME: ialloc()
68 *
69 * FUNCTION: Allocate a new inode
70 *
71 */
72struct inode *ialloc(struct inode *parent, umode_t mode)
73{
74 struct super_block *sb = parent->i_sb;
75 struct inode *inode;
76 struct jfs_inode_info *jfs_inode;
77 int rc;
78
79 inode = new_inode(sb);
80 if (!inode) {
81 jfs_warn("ialloc: new_inode returned NULL!");
Dave Kleikamp1f3403f2008-12-30 22:08:37 -060082 rc = -ENOMEM;
83 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 }
85
86 jfs_inode = JFS_IP(inode);
87
88 rc = diAlloc(parent, S_ISDIR(mode), inode);
89 if (rc) {
90 jfs_warn("ialloc: diAlloc returned %d!", rc);
Akinobu Mita087387f2006-09-14 09:22:38 -050091 if (rc == -EIO)
92 make_bad_inode(inode);
Dave Kleikamp1f3403f2008-12-30 22:08:37 -060093 goto fail_put;
94 }
95
96 if (insert_inode_locked(inode) < 0) {
97 rc = -EINVAL;
98 goto fail_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 }
100
David Howells8f659ad2008-11-14 10:38:56 +1100101 inode->i_uid = current_fsuid();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 if (parent->i_mode & S_ISGID) {
103 inode->i_gid = parent->i_gid;
104 if (S_ISDIR(mode))
105 mode |= S_ISGID;
106 } else
David Howells8f659ad2008-11-14 10:38:56 +1100107 inode->i_gid = current_fsgid();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108
109 /*
Dave Kleikamp69eb66d2006-03-09 13:59:30 -0600110 * New inodes need to save sane values on disk when
111 * uid & gid mount options are used
112 */
113 jfs_inode->saved_uid = inode->i_uid;
114 jfs_inode->saved_gid = inode->i_gid;
115
116 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 * Allocate inode to quota.
118 */
119 if (DQUOT_ALLOC_INODE(inode)) {
Dave Kleikamp1f3403f2008-12-30 22:08:37 -0600120 rc = -EDQUOT;
121 goto fail_drop;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122 }
123
124 inode->i_mode = mode;
Herbert Poetzlfa3241d2006-02-09 09:09:16 -0600125 /* inherit flags from parent */
126 jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT;
127
128 if (S_ISDIR(mode)) {
129 jfs_inode->mode2 |= IDIRECTORY;
130 jfs_inode->mode2 &= ~JFS_DIRSYNC_FL;
131 }
Dave Kleikamp4837c672006-02-10 08:11:53 -0600132 else {
Herbert Poetzlfa3241d2006-02-09 09:09:16 -0600133 jfs_inode->mode2 |= INLINEEA | ISPARSE;
Dave Kleikamp4837c672006-02-10 08:11:53 -0600134 if (S_ISLNK(mode))
135 jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL);
136 }
Herbert Poetzlfa3241d2006-02-09 09:09:16 -0600137 jfs_inode->mode2 |= mode;
138
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139 inode->i_blocks = 0;
140 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
141 jfs_inode->otime = inode->i_ctime.tv_sec;
142 inode->i_generation = JFS_SBI(sb)->gengen++;
143
144 jfs_inode->cflag = 0;
145
146 /* Zero remaining fields */
147 memset(&jfs_inode->acl, 0, sizeof(dxd_t));
148 memset(&jfs_inode->ea, 0, sizeof(dxd_t));
149 jfs_inode->next_index = 0;
150 jfs_inode->acltype = 0;
151 jfs_inode->btorder = 0;
152 jfs_inode->btindex = 0;
153 jfs_inode->bxflag = 0;
154 jfs_inode->blid = 0;
155 jfs_inode->atlhead = 0;
156 jfs_inode->atltail = 0;
157 jfs_inode->xtlid = 0;
Herbert Poetzlfa3241d2006-02-09 09:09:16 -0600158 jfs_set_inode_flags(inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159
160 jfs_info("ialloc returns inode = 0x%p\n", inode);
161
162 return inode;
Dave Kleikamp1f3403f2008-12-30 22:08:37 -0600163
164fail_drop:
165 DQUOT_DROP(inode);
166 inode->i_flags |= S_NOQUOTA;
167fail_unlock:
168 inode->i_nlink = 0;
169 unlock_new_inode(inode);
170fail_put:
171 iput(inode);
172fail:
173 return ERR_PTR(rc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174}