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authorzhouchuangao <zhouchuangao@vivo.com>2021-05-04 18:40:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-05-05 11:27:27 -0700
commitecfc2bda7aafc5c87b69a3d7a1fc1016dd21d5a7 (patch)
tree6b7335a1c81636255207de32b3df75832b615e0c
parent79cd420248c776005d534416bfc9b04696e6c729 (diff)
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@vivo.com Signed-off-by: zhouchuangao <zhouchuangao@vivo.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/zsmalloc.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 30c358b72025..58697f7a43f8 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1987,8 +1987,7 @@ static int zs_page_migrate(struct address_space *mapping, struct page *newpage,
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);
}
}