blob: 2af5efbfd06fa7dd97905c2df0aeeddca1076218 [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
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"
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
28/*
29 * NAME: ialloc()
30 *
31 * FUNCTION: Allocate a new inode
32 *
33 */
34struct inode *ialloc(struct inode *parent, umode_t mode)
35{
36 struct super_block *sb = parent->i_sb;
37 struct inode *inode;
38 struct jfs_inode_info *jfs_inode;
39 int rc;
40
41 inode = new_inode(sb);
42 if (!inode) {
43 jfs_warn("ialloc: new_inode returned NULL!");
44 return inode;
45 }
46
47 jfs_inode = JFS_IP(inode);
48
49 rc = diAlloc(parent, S_ISDIR(mode), inode);
50 if (rc) {
51 jfs_warn("ialloc: diAlloc returned %d!", rc);
52 make_bad_inode(inode);
53 iput(inode);
54 return NULL;
55 }
56
57 inode->i_uid = current->fsuid;
58 if (parent->i_mode & S_ISGID) {
59 inode->i_gid = parent->i_gid;
60 if (S_ISDIR(mode))
61 mode |= S_ISGID;
62 } else
63 inode->i_gid = current->fsgid;
64
65 /*
66 * Allocate inode to quota.
67 */
68 if (DQUOT_ALLOC_INODE(inode)) {
69 DQUOT_DROP(inode);
70 inode->i_flags |= S_NOQUOTA;
71 inode->i_nlink = 0;
72 iput(inode);
73 return NULL;
74 }
75
76 inode->i_mode = mode;
77 if (S_ISDIR(mode))
78 jfs_inode->mode2 = IDIRECTORY | mode;
79 else
80 jfs_inode->mode2 = INLINEEA | ISPARSE | mode;
81 inode->i_blksize = sb->s_blocksize;
82 inode->i_blocks = 0;
83 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
84 jfs_inode->otime = inode->i_ctime.tv_sec;
85 inode->i_generation = JFS_SBI(sb)->gengen++;
86
87 jfs_inode->cflag = 0;
88
89 /* Zero remaining fields */
90 memset(&jfs_inode->acl, 0, sizeof(dxd_t));
91 memset(&jfs_inode->ea, 0, sizeof(dxd_t));
92 jfs_inode->next_index = 0;
93 jfs_inode->acltype = 0;
94 jfs_inode->btorder = 0;
95 jfs_inode->btindex = 0;
96 jfs_inode->bxflag = 0;
97 jfs_inode->blid = 0;
98 jfs_inode->atlhead = 0;
99 jfs_inode->atltail = 0;
100 jfs_inode->xtlid = 0;
101
102 jfs_info("ialloc returns inode = 0x%p\n", inode);
103
104 return inode;
105}