fat: Remove FAT Directory Bread message
[linux-2.6.git] / fs / udf / ialloc.c
1 /*
2  * ialloc.c
3  *
4  * PURPOSE
5  *      Inode allocation handling routines for the OSTA-UDF(tm) filesystem.
6  *
7  * COPYRIGHT
8  *      This file is distributed under the terms of the GNU General Public
9  *      License (GPL). Copies of the GPL can be obtained from:
10  *              ftp://prep.ai.mit.edu/pub/gnu/GPL
11  *      Each contributing author retains all rights to their own work.
12  *
13  *  (C) 1998-2001 Ben Fennema
14  *
15  * HISTORY
16  *
17  *  02/24/99 blf  Created.
18  *
19  */
20
21 #include "udfdecl.h"
22 #include <linux/fs.h>
23 #include <linux/sched.h>
24 #include <linux/slab.h>
25
26 #include "udf_i.h"
27 #include "udf_sb.h"
28
29 void udf_free_inode(struct inode *inode)
30 {
31         struct super_block *sb = inode->i_sb;
32         struct udf_sb_info *sbi = UDF_SB(sb);
33
34         mutex_lock(&sbi->s_alloc_mutex);
35         if (sbi->s_lvid_bh) {
36                 struct logicalVolIntegrityDescImpUse *lvidiu =
37                                                         udf_sb_lvidiu(sbi);
38                 if (S_ISDIR(inode->i_mode))
39                         le32_add_cpu(&lvidiu->numDirs, -1);
40                 else
41                         le32_add_cpu(&lvidiu->numFiles, -1);
42                 udf_updated_lvid(sb);
43         }
44         mutex_unlock(&sbi->s_alloc_mutex);
45
46         udf_free_blocks(sb, NULL, &UDF_I(inode)->i_location, 0, 1);
47 }
48
49 struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
50 {
51         struct super_block *sb = dir->i_sb;
52         struct udf_sb_info *sbi = UDF_SB(sb);
53         struct inode *inode;
54         int block;
55         uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
56         struct udf_inode_info *iinfo;
57         struct udf_inode_info *dinfo = UDF_I(dir);
58
59         inode = new_inode(sb);
60
61         if (!inode) {
62                 *err = -ENOMEM;
63                 return NULL;
64         }
65         *err = -ENOSPC;
66
67         iinfo = UDF_I(inode);
68         if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
69                 iinfo->i_efe = 1;
70                 if (UDF_VERS_USE_EXTENDED_FE > sbi->s_udfrev)
71                         sbi->s_udfrev = UDF_VERS_USE_EXTENDED_FE;
72                 iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
73                                             sizeof(struct extendedFileEntry),
74                                             GFP_KERNEL);
75         } else {
76                 iinfo->i_efe = 0;
77                 iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
78                                             sizeof(struct fileEntry),
79                                             GFP_KERNEL);
80         }
81         if (!iinfo->i_ext.i_data) {
82                 iput(inode);
83                 *err = -ENOMEM;
84                 return NULL;
85         }
86
87         block = udf_new_block(dir->i_sb, NULL,
88                               dinfo->i_location.partitionReferenceNum,
89                               start, err);
90         if (*err) {
91                 iput(inode);
92                 return NULL;
93         }
94
95         if (sbi->s_lvid_bh) {
96                 struct logicalVolIntegrityDescImpUse *lvidiu;
97
98                 iinfo->i_unique = lvid_get_unique_id(sb);
99                 mutex_lock(&sbi->s_alloc_mutex);
100                 lvidiu = udf_sb_lvidiu(sbi);
101                 if (S_ISDIR(mode))
102                         le32_add_cpu(&lvidiu->numDirs, 1);
103                 else
104                         le32_add_cpu(&lvidiu->numFiles, 1);
105                 udf_updated_lvid(sb);
106                 mutex_unlock(&sbi->s_alloc_mutex);
107         }
108
109         inode_init_owner(inode, dir, mode);
110
111         iinfo->i_location.logicalBlockNum = block;
112         iinfo->i_location.partitionReferenceNum =
113                                 dinfo->i_location.partitionReferenceNum;
114         inode->i_ino = udf_get_lb_pblock(sb, &iinfo->i_location, 0);
115         inode->i_blocks = 0;
116         iinfo->i_lenEAttr = 0;
117         iinfo->i_lenAlloc = 0;
118         iinfo->i_use = 0;
119         if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
120                 iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
121         else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
122                 iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
123         else
124                 iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
125         inode->i_mtime = inode->i_atime = inode->i_ctime =
126                 iinfo->i_crtime = current_fs_time(inode->i_sb);
127         insert_inode_hash(inode);
128         mark_inode_dirty(inode);
129
130         *err = 0;
131         return inode;
132 }