From: Zhang Yi
mainline inclusion
from mainline-5.15-rc1
commit 0904c9ae3465c7acc066a564a76b75c0af83e6c7
category: bugfix
issue: #I4NRS5
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
Signed-off-by: Yu Changchun
---------------------------
No EIO simulation is required if the buffer is uptodate, so move the
simulation behind read bio completeion just like inode/block bitmap
simulation does.
Signed-off-by: Zhang Yi
Reviewed-by: Jan Kara
Link: https://lore.kernel.org/r/20210826130412.3921207-2-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o
Reviewed-by: Yang Erkun
Signed-off-by: Chen Jun
Signed-off-by: Zheng Zengkai
Signed-off-by: Yu Changchun
---
fs/ext4/inode.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 05ab7b65ea52..9fa1ed48b6b2 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4341,8 +4341,6 @@ static int __ext4_get_inode_loc(struct super_block *sb, unsigned long ino,
bh = sb_getblk(sb, block);
if (unlikely(!bh))
return -ENOMEM;
- if (ext4_simulate_fail(sb, EXT4_SIM_INODE_EIO))
- goto simulate_eio;
if (!buffer_uptodate(bh)) {
lock_buffer(bh);
@@ -4429,8 +4427,8 @@ static int __ext4_get_inode_loc(struct super_block *sb, unsigned long ino,
ext4_read_bh_nowait(bh, REQ_META | REQ_PRIO, NULL);
blk_finish_plug(&plug);
wait_on_buffer(bh);
+ ext4_simulate_fail_bh(sb, bh, EXT4_SIM_INODE_EIO);
if (!buffer_uptodate(bh)) {
- simulate_eio:
if (ret_block)
*ret_block = block;
brelse(bh);
--
2.25.1
