ext4: fix wrong unit use in ext4_mb_clear_bb

commit 247c3d214c23dfeeeb892e91a82ac1188bdaec9f upstream.

Function ext4_issue_discard need count in cluster. Pass count_clusters
instead of count to fix the mismatch.

Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: stable@kernel.org
Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Link: https://lore.kernel.org/r/20230603150327.3596033-11-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index ce21da3f437f0b04fdc20b14c0913c7db1d6063c..9a2b25e5905ec3bf29fcf0d8805b4c1d8b78fe2d 100644 (file)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4976,8 +4976,8 @@ do_more:
                 * them with group lock_held
                 */
                if (test_opt(sb, DISCARD)) {
-                       err = ext4_issue_discard(sb, block_group, bit, count,
-                                                NULL);
+                       err = ext4_issue_discard(sb, block_group, bit,
+                                                count_clusters, NULL);
                        if (err && err != -EOPNOTSUPP)
                                ext4_msg(sb, KERN_WARNING, "discard request in"
                                         " group:%d block:%d count:%lu failed"