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brd: fix aligned_sector from brd_do_discard()

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[ Upstream commit d4099f8893b057ad7e8d61df76bdeaf807ebd679 ]

The calculation is just wrong, fix it by round_up().

Fixes: 9ead7efc6f ("brd: implement discard support")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250506061756.2970934-3-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yu Kuai
2025-05-06 14:17:55 +08:00
committed by Greg Kroah-Hartman
parent 7778a67678
commit 5b814cde62
1 changed files with 1 additions and 1 deletions
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2
drivers/block/brd.c
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@@ -224,7 +224,7 @@ out:
static void brd_do_discard(struct brd_device *brd, sector_t sector, u32 size)
{
sector_t aligned_sector = (sector + PAGE_SECTORS) & ~PAGE_SECTORS;
sector_t aligned_sector = round_up(sector, PAGE_SECTORS);
struct page *page;
size -= (aligned_sector - sector) * SECTOR_SIZE;