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erofs: initialize packed inode after root inode is assigned

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As commit 8f7acdae2c ("staging: erofs: kill all failure handling in
fill_super()"), move the initialization of packed inode after root
inode is assigned, so that the iput() in .put_super() is adequate as
the failure handling.

Otherwise, iput() is also needed in .kill_sb(), in case of the mounting
fails halfway.

Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Fixes: b15b2e307c ("erofs: support on-disk compressed fragments data")
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Acked-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20230407141710.113882-3-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
This commit is contained in:
Jingbo Xu 2023-04-07 22:17:05 +08:00 committed by Gao Xiang
parent cc4efd3dd2
commit cb9bce7951
2 changed files with 12 additions and 11 deletions
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1
fs/erofs/internal.h
View File

@ -157,6 +157,7 @@ struct erofs_sb_info {
/* what we really care is nid, rather than ino.. */
erofs_nid_t root_nid;
erofs_nid_t packed_nid;
/* used for statfs, f_files - f_favail */
u64 inos;

22
fs/erofs/super.c
View File

@ -388,17 +388,7 @@ static int erofs_read_superblock(struct super_block *sb)
#endif
sbi->islotbits = ilog2(sizeof(struct erofs_inode_compact));
sbi->root_nid = le16_to_cpu(dsb->root_nid);
#ifdef CONFIG_EROFS_FS_ZIP
sbi->packed_inode = NULL;
if (erofs_sb_has_fragments(sbi) && dsb->packed_nid) {
sbi->packed_inode =
erofs_iget(sb, le64_to_cpu(dsb->packed_nid));
if (IS_ERR(sbi->packed_inode)) {
ret = PTR_ERR(sbi->packed_inode);
goto out;
}
}
#endif
sbi->packed_nid = le64_to_cpu(dsb->packed_nid);
sbi->inos = le64_to_cpu(dsb->inos);
sbi->build_time = le64_to_cpu(dsb->build_time);
@ -818,6 +808,16 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
erofs_shrinker_register(sb);
/* sb->s_umount is already locked, SB_ACTIVE and SB_BORN are not set */
#ifdef CONFIG_EROFS_FS_ZIP
if (erofs_sb_has_fragments(sbi) && sbi->packed_nid) {
sbi->packed_inode = erofs_iget(sb, sbi->packed_nid);
if (IS_ERR(sbi->packed_inode)) {
err = PTR_ERR(sbi->packed_inode);
sbi->packed_inode = NULL;
return err;
}
}
#endif
err = erofs_init_managed_cache(sb);
if (err)
return err;