[patch 134/143] mm/zsmalloc: use BUG_ON instead of if condition followed by BUG.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: zhouchuangao <zhouchuangao@xxxxxxxx>
Subject: mm/zsmalloc: use BUG_ON instead of if condition followed by BUG.

It can be optimized at compile time.

Link: https://lkml.kernel.org/r/1616727798-9110-1-git-send-email-zhouchuangao@xxxxxxxx
Signed-off-by: zhouchuangao <zhouchuangao@xxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/zsmalloc.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/mm/zsmalloc.c~mm-zsmalloc-use-bug_on-instead-of-if-condition-followed-by-bug
+++ a/mm/zsmalloc.c
@@ -1987,8 +1987,7 @@ static int zs_page_migrate(struct addres
 		head = obj_to_head(page, addr);
 		if (head & OBJ_ALLOCATED_TAG) {
 			handle = head & ~OBJ_ALLOCATED_TAG;
-			if (!testpin_tag(handle))
-				BUG();
+			BUG_ON(!testpin_tag(handle));
 
 			old_obj = handle_to_obj(handle);
 			obj_to_location(old_obj, &dummy, &obj_idx);
@@ -2035,8 +2034,7 @@ unpin_objects:
 		head = obj_to_head(page, addr);
 		if (head & OBJ_ALLOCATED_TAG) {
 			handle = head & ~OBJ_ALLOCATED_TAG;
-			if (!testpin_tag(handle))
-				BUG();
+			BUG_ON(!testpin_tag(handle));
 			unpin_tag(handle);
 		}
 	}
_



[Index of Archives]     [Kernel Archive]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]

  Powered by Linux