| 1 | |
| 2 | |
| 3 | * ialloc.c
|
| 4 | *
|
| 5 | * PURPOSE
|
| 6 | * Inode allocation handling routines for the OSTA-UDF(tm) filesystem.
|
| 7 | *
|
| 8 | * COPYRIGHT
|
| 9 | * (C) 1998-2001 Ben Fennema
|
| 10 | *
|
| 11 | * HISTORY
|
| 12 | *
|
| 13 | * 02/24/99 blf Created.
|
| 14 | *
|
| 15 |
|
| 16 |
|
| 17 | #include "udfdecl.h"
|
| 18 | #include <linux/fs.h>
|
| 19 | #include <linux/sched.h>
|
| 20 | #include <linux/slab.h>
|
| 21 |
|
| 22 | #include "udf_i.h"
|
| 23 | #include "udf_sb.h"
|
| 24 |
|
| 25 | void udf_free_inode(struct inode *inode)
|
| 26 | {
|
| 27 | udf_free_blocks(inode->i_sb, NULL, &UDF_I(inode)->i_location, 0, 1);
|
| 28 | }
|
| 29 |
|
| 30 | struct inode *udf_new_inode(struct inode *dir, umode_t mode)
|
| 31 | {
|
| 32 | struct super_block *sb = dir->i_sb;
|
| 33 | struct udf_sb_info *sbi = UDF_SB(sb);
|
| 34 | struct inode *inode;
|
| 35 | udf_pblk_t block;
|
| 36 | uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
|
| 37 | struct udf_inode_info *iinfo;
|
| 38 | struct udf_inode_info *dinfo = UDF_I(dir);
|
| 39 | int err;
|
| 40 |
|
| 41 | inode = new_inode(sb);
|
| 42 |
|
| 43 | if (!inode)
|
| 44 | return ERR_PTR(-ENOMEM);
|
| 45 |
|
| 46 | iinfo = UDF_I(inode);
|
| 47 | if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
|
| 48 | iinfo->i_efe = 1;
|
| 49 | if (UDF_VERS_USE_EXTENDED_FE > sbi->s_udfrev)
|
| 50 | sbi->s_udfrev = UDF_VERS_USE_EXTENDED_FE;
|
| 51 | iinfo->i_data = kzalloc(inode->i_sb->s_blocksize -
|
| 52 | sizeof(struct extendedFileEntry),
|
| 53 | GFP_KERNEL);
|
| 54 | } else {
|
| 55 | iinfo->i_efe = 0;
|
| 56 | iinfo->i_data = kzalloc(inode->i_sb->s_blocksize -
|
| 57 | sizeof(struct fileEntry),
|
| 58 | GFP_KERNEL);
|
| 59 | }
|
| 60 | if (!iinfo->i_data) {
|
| 61 | make_bad_inode(inode);
|
| 62 | iput(inode);
|
| 63 | return ERR_PTR(-ENOMEM);
|
| 64 | }
|
| 65 |
|
| 66 | err = -ENOSPC;
|
| 67 | block = udf_new_block(dir->i_sb, NULL,
|
| 68 | dinfo->i_location.partitionReferenceNum,
|
| 69 | start, &err);
|
| 70 | if (err) {
|
| 71 | make_bad_inode(inode);
|
| 72 | iput(inode);
|
| 73 | return ERR_PTR(err);
|
| 74 | }
|
| 75 |
|
| 76 | iinfo->i_unique = lvid_get_unique_id(sb);
|
| 77 | inode->i_generation = iinfo->i_unique;
|
| 78 |
|
| 79 | inode_init_owner(&nop_mnt_idmap, inode, dir, mode);
|
| 80 | if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_SET))
|
| 81 | inode->i_uid = sbi->s_uid;
|
| 82 | if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_SET))
|
| 83 | inode->i_gid = sbi->s_gid;
|
| 84 |
|
| 85 | iinfo->i_location.logicalBlockNum = block;
|
| 86 | iinfo->i_location.partitionReferenceNum =
|
| 87 | dinfo->i_location.partitionReferenceNum;
|
| 88 | inode->i_ino = udf_get_lb_pblock(sb, &iinfo->i_location, 0);
|
| 89 | inode->i_blocks = 0;
|
| 90 | iinfo->i_lenEAttr = 0;
|
| 91 | iinfo->i_lenAlloc = 0;
|
| 92 | iinfo->i_use = 0;
|
| 93 | iinfo->i_checkpoint = 1;
|
| 94 | iinfo->i_extraPerms = FE_PERM_U_CHATTR;
|
| 95 | udf_update_extra_perms(inode, mode);
|
| 96 |
|
| 97 | if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
|
| 98 | iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
|
| 99 | else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
|
| 100 | iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
|
| 101 | else
|
| 102 | iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
|
| 103 | simple_inode_init_ts(inode);
|
| 104 | iinfo->i_crtime = inode_get_mtime(inode);
|
| 105 | if (unlikely(insert_inode_locked(inode) < 0)) {
|
| 106 | make_bad_inode(inode);
|
| 107 | iput(inode);
|
| 108 | return ERR_PTR(-EIO);
|
| 109 | }
|
| 110 | mark_inode_dirty(inode);
|
| 111 |
|
| 112 | return inode;
|
| 113 | }
|