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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - fs/jfs/jfs_inode.c
2 * Copyright (C) International Business Machines Corp., 2000-2004
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.
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.
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
20 #include <linux/quotaops.h>
21 #include "jfs_incore.h"
22 #include "jfs_inode.h"
23 #include "jfs_filsys.h"
25 #include "jfs_dinode.h"
26 #include "jfs_debug.h"
29 void jfs_set_inode_flags(struct inode
*inode
)
31 unsigned int flags
= JFS_IP(inode
)->mode2
;
33 inode
->i_flags
&= ~(S_IMMUTABLE
| S_APPEND
|
34 S_NOATIME
| S_DIRSYNC
| S_SYNC
);
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
;
48 void jfs_get_inode_flags(struct jfs_inode_info
*jfs_ip
)
50 unsigned int flags
= jfs_ip
->vfs_inode
.i_flags
;
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
;
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
;
63 jfs_ip
->mode2
|= JFS_SYNC_FL
;
69 * FUNCTION: Allocate a new inode
72 struct inode
*ialloc(struct inode
*parent
, umode_t mode
)
74 struct super_block
*sb
= parent
->i_sb
;
76 struct jfs_inode_info
*jfs_inode
;
79 inode
= new_inode(sb
);
81 jfs_warn("ialloc: new_inode returned NULL!");
82 return ERR_PTR(-ENOMEM
);
85 jfs_inode
= JFS_IP(inode
);
87 rc
= diAlloc(parent
, S_ISDIR(mode
), inode
);
89 jfs_warn("ialloc: diAlloc returned %d!", rc
);
91 make_bad_inode(inode
);
96 inode
->i_uid
= current
->fsuid
;
97 if (parent
->i_mode
& S_ISGID
) {
98 inode
->i_gid
= parent
->i_gid
;
102 inode
->i_gid
= current
->fsgid
;
105 * New inodes need to save sane values on disk when
106 * uid & gid mount options are used
108 jfs_inode
->saved_uid
= inode
->i_uid
;
109 jfs_inode
->saved_gid
= inode
->i_gid
;
112 * Allocate inode to quota.
114 if (DQUOT_ALLOC_INODE(inode
)) {
116 inode
->i_flags
|= S_NOQUOTA
;
119 return ERR_PTR(-EDQUOT
);
122 inode
->i_mode
= mode
;
123 /* inherit flags from parent */
124 jfs_inode
->mode2
= JFS_IP(parent
)->mode2
& JFS_FL_INHERIT
;
127 jfs_inode
->mode2
|= IDIRECTORY
;
128 jfs_inode
->mode2
&= ~JFS_DIRSYNC_FL
;
131 jfs_inode
->mode2
|= INLINEEA
| ISPARSE
;
133 jfs_inode
->mode2
&= ~(JFS_IMMUTABLE_FL
|JFS_APPEND_FL
);
135 jfs_inode
->mode2
|= mode
;
138 inode
->i_mtime
= inode
->i_atime
= inode
->i_ctime
= CURRENT_TIME
;
139 jfs_inode
->otime
= inode
->i_ctime
.tv_sec
;
140 inode
->i_generation
= JFS_SBI(sb
)->gengen
++;
142 jfs_inode
->cflag
= 0;
144 /* Zero remaining fields */
145 memset(&jfs_inode
->acl
, 0, sizeof(dxd_t
));
146 memset(&jfs_inode
->ea
, 0, sizeof(dxd_t
));
147 jfs_inode
->next_index
= 0;
148 jfs_inode
->acltype
= 0;
149 jfs_inode
->btorder
= 0;
150 jfs_inode
->btindex
= 0;
151 jfs_inode
->bxflag
= 0;
153 jfs_inode
->atlhead
= 0;
154 jfs_inode
->atltail
= 0;
155 jfs_inode
->xtlid
= 0;
156 jfs_set_inode_flags(inode
);
158 jfs_info("ialloc returns inode = 0x%p\n", inode
);