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1da177e4 LT |
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" | |
1868f4aa | 22 | #include "jfs_inode.h" |
1da177e4 LT |
23 | #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 | */ | |
34 | struct 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 | } |