mm/zsmalloc.c: remove confusing code in obj_free()
Patch series "Cleanup for zsmalloc".
This series contains cleanups to remove confusing code in obj_free(),
combine two atomic ops and improve readability for async_free_zspage().
More details can be found in the respective changelogs.
This patch (of 2):
OBJ_ALLOCATED_TAG is only set for handle to indicate allocated object.
It's irrelevant with obj. So remove this misleading code to improve
readability.
Link: https://lkml.kernel.org/r/20210624123930.1769093-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20210624123930.1769093-2-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 19b563b..9198b16 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1471,7 +1471,6 @@ static void obj_free(struct size_class *class, unsigned long obj)
unsigned int f_objidx;
void *vaddr;
- obj &= ~OBJ_ALLOCATED_TAG;
obj_to_location(obj, &f_page, &f_objidx);
f_offset = (class->size * f_objidx) & ~PAGE_MASK;
zspage = get_zspage(f_page);
