In worst case code do 4 comparison,
just add some new checks to switch check branch faster
now in worst case code do 3 comparison
Signed-off-by: Timofey Titovets <nefelim4ag@xxxxxxxxx>
---
fs/btrfs/file.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index da1096eb1..39efda26c 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -71,16 +71,17 @@ struct inode_defrag {
static int __compare_inode_defrag(struct inode_defrag *defrag1,
struct inode_defrag *defrag2)
{
- if (defrag1->root > defrag2->root)
- return 1;
- else if (defrag1->root < defrag2->root)
+ if (defrag1->root != defrag2->root) {
+ if (defrag1->root > defrag2->root)
+ return 1;
return -1;
- else if (defrag1->ino > defrag2->ino)
- return 1;
- else if (defrag1->ino < defrag2->ino)
+ }
+ if (defrag1->ino != defrag2->ino) {
+ if (defrag1->ino > defrag2->ino)
+ return 1;
return -1;
- else
- return 0;
+ }
+ return 0;
}
/* pop a record for an inode into the defrag tree. The lock
--
2.13.0
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