The patch titled
Subject: mm/zsmalloc: use BUG_ON instead of if condition followed by BUG.
has been added to the -mm tree. Its filename is
mm-zsmalloc-use-bug_on-instead-of-if-condition-followed-by-bug.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-zsmalloc-use-bug_on-instead-of-if-condition-followed-by-bug.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-zsmalloc-use-bug_on-instead-of-if-condition-followed-by-bug.patch
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------------------------------------------------------
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);
}
}
_
Patches currently in -mm which might be from zhouchuangao@xxxxxxxx are
mm-page_alloc-duplicate-include-linux-vmalloch.patch
mm-zsmalloc-use-bug_on-instead-of-if-condition-followed-by-bug.patch
proc-sysctl-fix-function-name-error-in-comments.patch
umh-fix-some-spelling-mistakes.patch
