提交 3a905c37 编写于 作者: C Christoph Hellwig 提交者: Jens Axboe

block: skip bio_check_eod for partition-remapped bios

When an already remapped bio is resubmitted (e.g. by blk_queue_split),
bio_check_eod will compare the remapped bi_sector against the size
of the partition, leading to spurious I/O failures.

Skip the EOD check in this case.

Fixes: 309dca30 ("block: store a block_device pointer in struct bio")
Reported-by: NJens Axboe <axboe@kernel.dk>
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
上级 c42bca92
无相关合并请求
......@@ -815,11 +815,12 @@ static noinline_for_stack bool submit_bio_checks(struct bio *bio)
goto end_io;
if (unlikely(bio_check_ro(bio)))
goto end_io;
if (unlikely(bio_check_eod(bio)))
goto end_io;
if (bio->bi_bdev->bd_partno && !bio_flagged(bio, BIO_REMAPPED) &&
unlikely(blk_partition_remap(bio)))
goto end_io;
if (!bio_flagged(bio, BIO_REMAPPED)) {
if (unlikely(bio_check_eod(bio)))
goto end_io;
if (bdev->bd_partno && unlikely(blk_partition_remap(bio)))
goto end_io;
}
/*
* Filter flush bio's early so that bio based drivers without flush
......
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