[PATCH 04/10] block/badblocks: fix the bug of reverse order

From: linan666
Date: Fri Apr 28 2023 - 04:52:16 EST


From: Li Nan <linan122@xxxxxxxxxx>

Order of badblocks will be reversed if we set a large area at once. 'hi'
remains unchanged while adding continuous badblocks is wrong, the next
setting is greater than 'hi', it should be added to the next position.
Let 'hi' +1 each cycle.

# echo 0 2048 > bad_blocks
# cat bad_blocks
1536 512
1024 512
512 512
0 512

Fixes: 9e0e252a048b ("badblocks: Add core badblock management code")
Signed-off-by: Li Nan <linan122@xxxxxxxxxx>
---
block/badblocks.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/block/badblocks.c b/block/badblocks.c
index f34351b59414..11e3a3ae2c72 100644
--- a/block/badblocks.c
+++ b/block/badblocks.c
@@ -320,6 +320,7 @@ int badblocks_set(struct badblocks *bb, sector_t s, int sectors,
p[hi] = BB_MAKE(s, this_sectors, acknowledged);
sectors -= this_sectors;
s += this_sectors;
+ hi++;
changed = true;
}
}
--
2.31.1