From: Jingbo Xu <jefflexu@xxxxxxxxxxxxxxxxx>
[ Upstream commit cb9bce79514392a9a216ff67148e05e2d72c28bd ]
As commit 8f7acdae2cd4 ("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@xxxxxxxxxxxxxxxxx>
Reviewed-by: Yue Hu <huyue2@xxxxxxxxxxx>
Fixes: b15b2e307c3a ("erofs: support on-disk compressed fragments data")
Reviewed-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
Acked-by: Chao Yu <chao@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230407141710.113882-3-jefflexu@xxxxxxxxxxxxxxxxx
Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/erofs/internal.h | 1 +
fs/erofs/super.c | 22 +++++++++++-----------
2 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index bb8501c0ff5b5..f246523dd7917 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -154,6 +154,7 @@ 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;
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 626a615dafc2f..bd8bf8fc2f5df 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -381,17 +381,7 @@ 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);
@@ -800,6 +790,16 @@ 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;
--
2.39.2
