md/raid5: fix miscalculation of 'end_sector' in raid5_read_one_chunk()
commit8557dc2712
upstream. 'end_sector' is compared to 'rdev->recovery_offset', which is offset to rdev, however, commite82ed3a4fb
("md/raid6: refactor raid5_read_one_chunk") changes the calculation of 'end_sector' to offset to the array. Fix this miscalculation. Fixes:e82ed3a4fb
("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>
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@ -5408,7 +5408,7 @@ static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio)
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sector = raid5_compute_sector(conf, raid_bio->bi_iter.bi_sector, 0,
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&dd_idx, NULL);
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end_sector = bio_end_sector(raid_bio);
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end_sector = sector + bio_sectors(raid_bio);
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rcu_read_lock();
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if (r5c_big_stripe_cached(conf, sector))
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