2019-11-04 11:56:46

by Chengguang Xu

[permalink] [raw]
Subject: [PATCH 3/5] ext2: skip unnecessary operations in ext2_try_to_allocate()

Move 'repeat' tag to proper place so that we can
skip unnecessary operations in ext2_try_to_allocate().

Signed-off-by: Chengguang Xu <[email protected]>
---
fs/ext2/balloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 994a1fd18e93..a0c22e166682 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -696,7 +696,6 @@ ext2_try_to_allocate(struct super_block *sb, int group,

BUG_ON(start > EXT2_BLOCKS_PER_GROUP(sb));

-repeat:
if (grp_goal < 0) {
grp_goal = find_next_usable_block(start, bitmap_bh, end);
if (grp_goal < 0)
@@ -713,6 +712,7 @@ ext2_try_to_allocate(struct super_block *sb, int group,
}
start = grp_goal;

+repeat:
if (ext2_set_bit_atomic(sb_bgl_lock(EXT2_SB(sb), group), grp_goal,
bitmap_bh->b_data)) {
/*
--
2.20.1