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From:   Zhang Yi <yi.zhang@huawei.com>
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Subject: [PATCH 05/14] isofs: replace ll_rw_block()
Date:   Wed, 31 Aug 2022 15:21:02 +0800
Message-ID: <20220831072111.3569680-6-yi.zhang@huawei.com>
In-Reply-To: <20220831072111.3569680-1-yi.zhang@huawei.com>
References: <20220831072111.3569680-1-yi.zhang@huawei.com>
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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.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
---
 fs/isofs/compress.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
index b466172eec25..ac35eddff29c 100644
--- a/fs/isofs/compress.c
+++ b/fs/isofs/compress.c
@@ -82,7 +82,7 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start,
 		return 0;
 	}
 	haveblocks = isofs_get_blocks(inode, blocknum, bhs, needblocks);
-	ll_rw_block(REQ_OP_READ, haveblocks, bhs);
+	bh_read_batch(bhs, haveblocks);
 
 	curbh = 0;
 	curpage = 0;
-- 
2.31.1