From 32e9ad4d11f69949ff331e35a417871ee0d31d99 Mon Sep 17 00:00:00 2001 From: Li Nan Date: Thu, 27 Feb 2025 15:54:58 +0800 Subject: [PATCH] badblocks: attempt to merge adjacent badblocks during ack_all_badblocks If ack and unack badblocks are adjacent, they will not be merged and will remain as two separate badblocks. Even after the bad blocks are written to disk and both become ack, they will still remain as two independent bad blocks. This is not ideal as it wastes the limited space for badblocks. Therefore, during ack_all_badblocks(), attempt to merge badblocks if they are adjacent. Fixes: aa511ff8218b ("badblocks: switch to the improved badblock handling code") Signed-off-by: Li Nan Reviewed-by: Yu Kuai Acked-by: Coly Li Link: https://lore.kernel.org/r/20250227075507.151331-4-zhengqixing@huaweicloud.com Signed-off-by: Jens Axboe --- block/badblocks.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/block/badblocks.c b/block/badblocks.c index f069c93e986df..ad8652fbe1c8f 100644 --- a/block/badblocks.c +++ b/block/badblocks.c @@ -1491,6 +1491,11 @@ void ack_all_badblocks(struct badblocks *bb) p[i] = BB_MAKE(start, len, 1); } } + + for (i = 0; i < bb->count ; i++) + while (try_adjacent_combine(bb, i)) + ; + bb->unacked_exist = 0; } write_sequnlock_irq(&bb->lock); -- 2.39.5