[PATCH 5.10 007/226] ext4: remove the group parameter of ext4_trim_extent

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5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wang Jianchao <wangjianchao@xxxxxxxxxxxx>

[ Upstream commit bd2eea8d0a6b6a9aca22f20bf74f73b71d8808af ]

Get rid of the 'group' parameter of ext4_trim_extent as we can get
it from the 'e4b'.

Reviewed-by: Andreas Dilger <adilger@xxxxxxxxx>
Signed-off-by: Wang Jianchao <wangjianchao@xxxxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Link: https://lore.kernel.org/r/20210724074124.25731-2-jianchao.wan9@xxxxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Stable-dep-of: 45e4ab320c9b ("ext4: move setting of trimmed bit into ext4_try_to_trim_range()")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/ext4/mballoc.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 2f6ed59d81f02..342225c1cf332 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -5859,19 +5859,19 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
  * @sb:		super block for the file system
  * @start:	starting block of the free extent in the alloc. group
  * @count:	number of blocks to TRIM
- * @group:	alloc. group we are working with
  * @e4b:	ext4 buddy for the group
  *
  * Trim "count" blocks starting at "start" in the "group". To assure that no
  * one will allocate those blocks, mark it as used in buddy bitmap. This must
  * be called with under the group lock.
  */
-static int ext4_trim_extent(struct super_block *sb, int start, int count,
-			     ext4_group_t group, struct ext4_buddy *e4b)
+static int ext4_trim_extent(struct super_block *sb,
+		int start, int count, struct ext4_buddy *e4b)
 __releases(bitlock)
 __acquires(bitlock)
 {
 	struct ext4_free_extent ex;
+	ext4_group_t group = e4b->bd_group;
 	int ret = 0;
 
 	trace_ext4_trim_extent(sb, group, start, count);
@@ -5947,8 +5947,7 @@ ext4_trim_all_free(struct super_block *sb, ext4_group_t group,
 		next = mb_find_next_bit(bitmap, max + 1, start);
 
 		if ((next - start) >= minblocks) {
-			ret = ext4_trim_extent(sb, start,
-					       next - start, group, &e4b);
+			ret = ext4_trim_extent(sb, start, next - start, &e4b);
 			if (ret && ret != -EOPNOTSUPP)
 				break;
 			ret = 0;
-- 
2.40.1






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