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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>
This commit is contained in:
zhouchuangao 2021-05-04 18:40:00 -07:00 committed by Linus Torvalds
parent 79cd420248
commit ecfc2bda7a
1 changed files with 2 additions and 4 deletions
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6
mm/zsmalloc.c
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@ -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);
}
}