The patch titled
Subject: isofs: replace ll_rw_block()
has been added to the -mm mm-unstable branch. Its filename is
isofs-replace-ll_rw_block.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/isofs-replace-ll_rw_block.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Zhang Yi <yi.zhang@xxxxxxxxxx>
Subject: isofs: replace ll_rw_block()
Date: Thu, 1 Sep 2022 21:34:56 +0800
ll_rw_block() is not safe for the sync read path because it cannot
guarantee that submitting read IO if the buffer has been locked. We
could get false positive EIO return from zisofs_uncompress_block() if
he buffer has been locked by others. So stop using ll_rw_block(),
switch to sync helper instead.
Link: https://lkml.kernel.org/r/20220901133505.2510834-6-yi.zhang@xxxxxxxxxx
Signed-off-by: Zhang Yi <yi.zhang@xxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/isofs/compress.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/isofs/compress.c~isofs-replace-ll_rw_block
+++ a/fs/isofs/compress.c
@@ -82,7 +82,7 @@ static loff_t zisofs_uncompress_block(st
return 0;
}
haveblocks = isofs_get_blocks(inode, blocknum, bhs, needblocks);
- ll_rw_block(REQ_OP_READ, haveblocks, bhs);
+ bh_read_batch(haveblocks, bhs);
curbh = 0;
curpage = 0;
_
Patches currently in -mm which might be from yi.zhang@xxxxxxxxxx are
fs-buffer-remove-__breadahead_gfp.patch
fs-buffer-add-some-new-buffer-read-helpers.patch
fs-buffer-replace-ll_rw_block.patch
gfs2-replace-ll_rw_block.patch
isofs-replace-ll_rw_block.patch
jbd2-replace-ll_rw_block.patch
ntfs3-replace-ll_rw_block.patch
ocfs2-replace-ll_rw_block.patch
reiserfs-replace-ll_rw_block.patch
udf-replace-ll_rw_block.patch
ufs-replace-ll_rw_block.patch
fs-buffer-remove-ll_rw_block-helper.patch
ext2-replace-bh_submit_read-helper-with-bh_read_locked.patch
fs-buffer-remove-bh_submit_read-helper.patch
