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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * ialloc.c4 *5 * PURPOSE6 * Inode allocation handling routines for the OSTA-UDF(tm) filesystem.7 *8 * COPYRIGHT9 * (C) 1998-2001 Ben Fennema10 *11 * HISTORY12 *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 25void udf_free_inode(struct inode *inode)26{27 udf_free_blocks(inode->i_sb, NULL, &UDF_I(inode)->i_location, 0, 1);28}29 30struct 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 else102 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}114