Function count_bitmap_extents was deleted in version 5.11, but there is typo in versions 5.6-5.10. The following patch may fix it.
Region size should be calculated by subtracting the end from the beginning.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: dfb79ddb130e ("btrfs: track discardable extents for async discard") Signed-off-by: Anastasia Belova abelova@astralinux.ru --- fs/btrfs/free-space-cache.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 4989c60b1df9..a34e266a0969 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1930,7 +1930,7 @@ static int count_bitmap_extents(struct btrfs_free_space_ctl *ctl,
bitmap_for_each_set_region(bitmap_info->bitmap, rs, re, 0, BITS_PER_BITMAP) { - bytes -= (rs - re) * ctl->unit; + bytes -= (re - rs) * ctl->unit; count++;
if (!bytes)
Hi,
Thanks for your patch.
FYI: kernel test robot notices the stable kernel rule is not satisfied.
The check is based on https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html#opti...
Rule: The upstream commit ID must be specified with a separate line above the commit text. Subject: [PATCH 5.10 1/1] btrfs: fix region size in count_bitmap_extents Link: https://lore.kernel.org/stable/20231031124900.19597-2-abelova%40astralinux.r...
Please ignore this mail if the patch is not relevant for upstream.
linux-stable-mirror@lists.linaro.org
-
Anastasia Belova -
kernel test robot