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/quotaops.h>
24 #include <linux/sched.h>
25 #include <linux/slab.h>
30 void udf_free_inode(struct inode *inode)
32 struct super_block *sb = inode->i_sb;
33 struct udf_sb_info *sbi = UDF_SB(sb);
36 * Note: we must free any quota before locking the superblock,
37 * as writing the quota to disk may need the lock as well.
39 DQUOT_FREE_INODE(inode);
44 mutex_lock(&sbi->s_alloc_mutex);
46 struct logicalVolIntegrityDescImpUse *lvidiu =
48 if (S_ISDIR(inode->i_mode))
49 le32_add_cpu(&lvidiu->numDirs, -1);
51 le32_add_cpu(&lvidiu->numFiles, -1);
53 mark_buffer_dirty(sbi->s_lvid_bh);
55 mutex_unlock(&sbi->s_alloc_mutex);
57 udf_free_blocks(sb, NULL, UDF_I(inode)->i_location, 0, 1);
60 struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
62 struct super_block *sb = dir->i_sb;
63 struct udf_sb_info *sbi = UDF_SB(sb);
66 uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
67 struct udf_inode_info *iinfo;
68 struct udf_inode_info *dinfo = UDF_I(dir);
70 inode = new_inode(sb);
79 if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
81 if (UDF_VERS_USE_EXTENDED_FE > sbi->s_udfrev)
82 sbi->s_udfrev = UDF_VERS_USE_EXTENDED_FE;
83 iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
84 sizeof(struct extendedFileEntry),
88 iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
89 sizeof(struct fileEntry),
92 if (!iinfo->i_ext.i_data) {
98 block = udf_new_block(dir->i_sb, NULL,
99 dinfo->i_location.partitionReferenceNum,
106 mutex_lock(&sbi->s_alloc_mutex);
107 if (sbi->s_lvid_bh) {
108 struct logicalVolIntegrityDesc *lvid =
109 (struct logicalVolIntegrityDesc *)
110 sbi->s_lvid_bh->b_data;
111 struct logicalVolIntegrityDescImpUse *lvidiu =
113 struct logicalVolHeaderDesc *lvhd;
115 lvhd = (struct logicalVolHeaderDesc *)
116 (lvid->logicalVolContentsUse);
118 le32_add_cpu(&lvidiu->numDirs, 1);
120 le32_add_cpu(&lvidiu->numFiles, 1);
121 iinfo->i_unique = uniqueID = le64_to_cpu(lvhd->uniqueID);
122 if (!(++uniqueID & 0x00000000FFFFFFFFUL))
124 lvhd->uniqueID = cpu_to_le64(uniqueID);
125 mark_buffer_dirty(sbi->s_lvid_bh);
127 mutex_unlock(&sbi->s_alloc_mutex);
128 inode->i_mode = mode;
129 inode->i_uid = current->fsuid;
130 if (dir->i_mode & S_ISGID) {
131 inode->i_gid = dir->i_gid;
135 inode->i_gid = current->fsgid;
138 iinfo->i_location.logicalBlockNum = block;
139 iinfo->i_location.partitionReferenceNum =
140 dinfo->i_location.partitionReferenceNum;
141 inode->i_ino = udf_get_lb_pblock(sb, iinfo->i_location, 0);
143 iinfo->i_lenEAttr = 0;
144 iinfo->i_lenAlloc = 0;
146 if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
147 iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
148 else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
149 iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
151 iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
152 inode->i_mtime = inode->i_atime = inode->i_ctime =
153 iinfo->i_crtime = current_fs_time(inode->i_sb);
154 insert_inode_hash(inode);
155 mark_inode_dirty(inode);
157 if (DQUOT_ALLOC_INODE(inode)) {
159 inode->i_flags |= S_NOQUOTA;