From: zhouchuangao <zhouchuangao@vivo.com>
To: Minchan Kim <minchan@kernel.org>, Nitin Gupta <ngupta@vflare.org>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: zhouchuangao <zhouchuangao@vivo.com>
Subject: [PATCH] mm/zsmalloc: Use BUG_ON instead of if condition followed by BUG.
Date: Thu, 25 Mar 2021 20:03:17 -0700 [thread overview]
Message-ID: <1616727798-9110-1-git-send-email-zhouchuangao@vivo.com> (raw)
It can be optimized at compile time.
Signed-off-by: zhouchuangao <zhouchuangao@vivo.com>
---
mm/zsmalloc.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 30c358b..58697f7 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 @@ 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));
unpin_tag(handle);
}
}
--
2.7.4
reply other threads:[~2021-03-26 3:04 UTC|newest]
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