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| author | Yu Kuai <yukuai3@huawei.com> | 2023-05-24 09:41:18 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-09 10:34:20 +0200 |
| commit | cbfed647fd19131bf5e1a5e7bdabefde2dfebab2 (patch) | |
| tree | 5c3af68788b6176715dc94ef66a94583237359b1 | |
| parent | 704842c97aa35e587a287c22c57582a330dd0f57 (diff) | |
| download | linux-cbfed647fd19131bf5e1a5e7bdabefde2dfebab2.tar.gz | |
md/raid5: fix miscalculation of 'end_sector' in raid5_read_one_chunk()
commit 8557dc27126949c702bd3aafe8a7e0b7e4fcb44c upstream.
'end_sector' is compared to 'rdev->recovery_offset', which is offset to
rdev, however, commit e82ed3a4fbb5 ("md/raid6: refactor
raid5_read_one_chunk") changes the calculation of 'end_sector' to offset
to the array. Fix this miscalculation.
Fixes: e82ed3a4fbb5 ("md/raid6: refactor raid5_read_one_chunk")
Cc: stable@vger.kernel.org # v5.12+
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230524014118.3172781-1-yukuai1@huaweicloud.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/md/raid5.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index f787c9e5b10e..fbef3c9badb6 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5516,7 +5516,7 @@ static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio) sector = raid5_compute_sector(conf, raid_bio->bi_iter.bi_sector, 0, &dd_idx, NULL); - end_sector = bio_end_sector(raid_bio); + end_sector = sector + bio_sectors(raid_bio); rcu_read_lock(); if (r5c_big_stripe_cached(conf, sector)) |