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slab: delete useless RED_INACTIVE and RED_ACTIVE

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These seem useless since we use the SLUB_RED_INACTIVE and SLUB_RED_ACTIVE,
so just delete them, no functional change.

Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Chengming Zhou <chengming.zhou@linux.dev>
Reviewed-by: Christoph Lameter (Ampere) <cl@linux.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Chengming Zhou 2024-06-07 16:40:14 +08:00 committed by Vlastimil Babka
parent adef2aeaa2
commit 4a24bbabc8
3 changed files with 6 additions and 12 deletions
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7
include/linux/poison.h
View File

@ -38,11 +38,8 @@
* Magic nums for obj red zoning.
* Placed in the first word before and the first word after an obj.
*/
#define RED_INACTIVE 0x09F911029D74E35BULL /* when obj is inactive */
#define RED_ACTIVE 0xD84156C5635688C0ULL /* when obj is active */
#define SLUB_RED_INACTIVE 0xbb
#define SLUB_RED_ACTIVE 0xcc
#define SLUB_RED_INACTIVE 0xbb /* when obj is inactive */
#define SLUB_RED_ACTIVE 0xcc /* when obj is active */
/* ...and for poisoning */
#define POISON_INUSE 0x5a /* for use-uninitialised poisoning */

4
mm/slub.c
View File

@ -1228,8 +1228,8 @@ skip_bug_print:
* Padding is extended by another word if Redzoning is enabled and
* object_size == inuse.
*
* We fill with 0xbb (RED_INACTIVE) for inactive objects and with
* 0xcc (RED_ACTIVE) for objects in use.
* We fill with 0xbb (SLUB_RED_INACTIVE) for inactive objects and with
* 0xcc (SLUB_RED_ACTIVE) for objects in use.
*
* object + s->inuse
* Meta data starts here.

7
tools/include/linux/poison.h
View File

@ -47,11 +47,8 @@
* Magic nums for obj red zoning.
* Placed in the first word before and the first word after an obj.
*/
#define RED_INACTIVE 0x09F911029D74E35BULL /* when obj is inactive */
#define RED_ACTIVE 0xD84156C5635688C0ULL /* when obj is active */
#define SLUB_RED_INACTIVE 0xbb
#define SLUB_RED_ACTIVE 0xcc
#define SLUB_RED_INACTIVE 0xbb /* when obj is inactive */
#define SLUB_RED_ACTIVE 0xcc /* when obj is active */
/* ...and for poisoning */
#define POISON_INUSE 0x5a /* for use-uninitialised poisoning */