1 /*
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
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * 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
15 * along with this program; if not, write to the Free Software
16 * 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"
22 #include "jfs_filsys.h"
23 #include "jfs_imap.h"
24 #include "jfs_dinode.h"
25 #include "jfs_debug.h"
26
27 /*
28 * NAME: ialloc()
29 *
30 * FUNCTION: Allocate a new inode
31 *
32 */
33 struct inode *ialloc(struct inode *parent, umode_t mode)
34 {
35 struct super_block *sb = parent->i_sb;
36 struct inode *inode;
37 struct jfs_inode_info *jfs_inode;
38 int rc;
39
40 inode = new_inode(sb);
41 if (!inode) {
42 jfs_warn("ialloc: new_inode returned NULL!");
43 return inode;
44 }
45
46 jfs_inode = JFS_IP(inode);
47
48 rc = diAlloc(parent, S_ISDIR(mode), inode);
49 if (rc) {
50 jfs_warn("ialloc: diAlloc returned %d!", rc);
51 make_bad_inode(inode);
52 iput(inode);
53 return NULL;
54 }
55
56 inode->i_uid = current->fsuid;
57 if (parent->i_mode & S_ISGID) {
58 inode->i_gid = parent->i_gid;
59 if (S_ISDIR(mode))
60 mode |= S_ISGID;
61 } else
62 inode->i_gid = current->fsgid;
63
64 /*
65 * Allocate inode to quota.
66 */
67 if (DQUOT_ALLOC_INODE(inode)) {
68 DQUOT_DROP(inode);
69 inode->i_flags |= S_NOQUOTA;
70 inode->i_nlink = 0;
71 iput(inode);
72 return NULL;
73 }
74
75 inode->i_mode = mode;
76 if (S_ISDIR(mode))
77 jfs_inode->mode2 = IDIRECTORY | mode;
78 else
79 jfs_inode->mode2 = INLINEEA | ISPARSE | mode;
80 inode->i_blksize = sb->s_blocksize;
81 inode->i_blocks = 0;
82 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
83 jfs_inode->otime = inode->i_ctime.tv_sec;
84 inode->i_generation = JFS_SBI(sb)->gengen++;
85
86 jfs_inode->cflag = 0;
87
88 /* Zero remaining fields */
89 memset(&jfs_inode->acl, 0, sizeof(dxd_t));
90 memset(&jfs_inode->ea, 0, sizeof(dxd_t));
91 jfs_inode->next_index = 0;
92 jfs_inode->acltype = 0;
93 jfs_inode->btorder = 0;
94 jfs_inode->btindex = 0;
95 jfs_inode->bxflag = 0;
96 jfs_inode->blid = 0;
97 jfs_inode->atlhead = 0;
98 jfs_inode->atltail = 0;
99 jfs_inode->xtlid = 0;
100
101 jfs_info("ialloc returns inode = 0x%p\n", inode);
102
103 return inode;
104 }
105
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