[109/192] mm/zsmalloc.c: remove confusing code in obj_free()

Commit Message

Andrew Morton July 1, 2021, 1:53 a.m. UTC

From: Miaohe Lin <[e-mail]>
Subject: 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/[e-mail]
Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Miaohe Lin <[e-mail]>
Cc: Minchan Kim <[e-mail]>
Cc: Nitin Gupta <[e-mail]>
Cc: Sergey Senozhatsky <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 mm/zsmalloc.c |    1 -
 1 file changed, 1 deletion(-)

Patch

--- a/mm/zsmalloc.c~mm-zsmallocc-remove-confusing-code-in-obj_free
+++ a/mm/zsmalloc.c
@@ -1471,7 +1471,6 @@  static void obj_free(struct size_class *
 	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);