Commit aa89efc8 authored by Zhang Yi's avatar Zhang Yi Committed by Zheng Zengkai
Browse files

jbd2: replace ll_rw_block()

mainline inclusion
from mainline-v6.1-rc1
commit 8c004d1f
category: bugfix
bugzilla: 187878,https://gitee.com/openeuler/kernel/issues/I5QJH9
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.1-rc2&id=8c004d1fc1497d9a6d92ea968bd58230af59a492

--------------------------------

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 after wait_on_buffer() if the buffer has
been locked by others. So stop using ll_rw_block() in
journal_get_superblock(). We also switch to new bh_readahead_batch()
for the buffer array readahead path.

Link: https://lkml.kernel.org/r/20220901133505.2510834-7-yi.zhang@huawei.com


Signed-off-by: default avatarZhang Yi <yi.zhang@huawei.com>
Reviewed-by: default avatarJan Kara <jack@suse.cz>
Reviewed-by: default avatarTheodore Ts'o <tytso@mit.edu>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>

Conflict:
  fs/jbd2/journal.c
  fs/jbd2/recovery.c

Signed-off-by: default avatarLi Lingfeng <lilingfeng3@huawei.com>
Reviewed-by: default avatarZhang Yi <yi.zhang@huawei.com>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent 93df754e
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