udf: replace ll_rw_block()

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

Link: https://lkml.kernel.org/r/20220901133505.2510834-11-yi.zhang@huawei.com
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Zhang Yi 2022-09-01 21:35:01 +08:00 • committed by Andrew Morton

parent d554822e82

commit 59a16786fa

3 changed files with 3 additions and 9 deletions

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2

fs/udf/dir.c

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2

fs/udf/directory.c

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8

fs/udf/inode.c

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