5 * Inode allocation handling routines for the OSTA-UDF(tm) filesystem.
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.
13 * (C) 1998-2001 Ben Fennema
17 * 02/24/99 blf Created.
23 #include <linux/sched.h>
24 #include <linux/slab.h>
29 void udf_free_inode(struct inode *inode)
31 struct super_block *sb = inode->i_sb;
32 struct udf_sb_info *sbi = UDF_SB(sb);
33 struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sb);
36 mutex_lock(&sbi->s_alloc_mutex);
37 if (S_ISDIR(inode->i_mode))
38 le32_add_cpu(&lvidiu->numDirs, -1);
40 le32_add_cpu(&lvidiu->numFiles, -1);
42 mutex_unlock(&sbi->s_alloc_mutex);
45 udf_free_blocks(sb, NULL, &UDF_I(inode)->i_location, 0, 1);
48 struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
50 struct super_block *sb = dir->i_sb;
51 struct udf_sb_info *sbi = UDF_SB(sb);
54 uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
55 struct udf_inode_info *iinfo;
56 struct udf_inode_info *dinfo = UDF_I(dir);
57 struct logicalVolIntegrityDescImpUse *lvidiu;
59 inode = new_inode(sb);
68 if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
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),
77 iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
78 sizeof(struct fileEntry),
81 if (!iinfo->i_ext.i_data) {
87 block = udf_new_block(dir->i_sb, NULL,
88 dinfo->i_location.partitionReferenceNum,
95 lvidiu = udf_sb_lvidiu(sb);
97 iinfo->i_unique = lvid_get_unique_id(sb);
98 mutex_lock(&sbi->s_alloc_mutex);
100 le32_add_cpu(&lvidiu->numDirs, 1);
102 le32_add_cpu(&lvidiu->numFiles, 1);
103 udf_updated_lvid(sb);
104 mutex_unlock(&sbi->s_alloc_mutex);
107 inode_init_owner(inode, dir, mode);
109 iinfo->i_location.logicalBlockNum = block;
110 iinfo->i_location.partitionReferenceNum =
111 dinfo->i_location.partitionReferenceNum;
112 inode->i_ino = udf_get_lb_pblock(sb, &iinfo->i_location, 0);
114 iinfo->i_lenEAttr = 0;
115 iinfo->i_lenAlloc = 0;
117 iinfo->i_checkpoint = 1;
118 if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
119 iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
120 else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
121 iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
123 iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
124 inode->i_mtime = inode->i_atime = inode->i_ctime =
125 iinfo->i_crtime = current_fs_time(inode->i_sb);
126 insert_inode_hash(inode);
127 mark_inode_dirty(inode);