Commit 4a24bbab authored by Chengming Zhou's avatar Chengming Zhou Committed by Vlastimil Babka
Browse files

slab: delete useless RED_INACTIVE and RED_ACTIVE 



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

Reviewed-by: default avatarVlastimil Babka <vbabka@suse.cz>
Signed-off-by: default avatarChengming Zhou <chengming.zhou@linux.dev>
Reviewed-by: default avatarChristoph Lameter (Ampere) <cl@linux.com>
Signed-off-by: default avatarVlastimil Babka <vbabka@suse.cz>
parent adef2aea

include/linux/poison.h

+2 −5
Original line number Diff line number Diff line
@@ -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 */

mm/slub.c

+2 −2
Original line number Diff line number Diff line
@@ -1228,8 +1228,8 @@ static int check_bytes_and_report(struct kmem_cache *s, struct slab *slab, 
 * 	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.

tools/include/linux/poison.h

+2 −5
Original line number Diff line number Diff line
@@ -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 */