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Commit 7a64bf05 authored by Glauber Costa's avatar Glauber Costa Committed by Linus Torvalds
Browse files

mm: add a __GFP_KMEMCG flag 



This flag is used to indicate to the callees that this allocation is a
kernel allocation in process context, and should be accounted to current's
memcg.

Signed-off-by: default avatarGlauber Costa <glommer@parallels.com>
Acked-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Acked-by: default avatarRik van Riel <riel@redhat.com>
Acked-by: default avatarMel Gorman <mel@csn.ul.ie>
Acked-by: default avatarKamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: default avatarMichal Hocko <mhocko@suse.cz>
Acked-by: default avatarChristoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Suleiman Souhlal <suleiman@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Frederic Weisbecker <fweisbec@redhat.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: JoonSoo Kim <js1304@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 510fc4e1

include/linux/gfp.h

+2 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ struct vm_area_struct; 
#define ___GFP_HARDWALL		0x20000u

#define ___GFP_THISNODE		0x40000u

#define ___GFP_RECLAIMABLE	0x80000u

#define ___GFP_KMEMCG		0x100000u

#define ___GFP_NOTRACK		0x200000u

#define ___GFP_NO_KSWAPD	0x400000u

#define ___GFP_OTHER_NODE	0x800000u
@@ -89,6 +90,7 @@ struct vm_area_struct; 


#define __GFP_NO_KSWAPD	((__force gfp_t)___GFP_NO_KSWAPD)

#define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */

#define __GFP_KMEMCG	((__force gfp_t)___GFP_KMEMCG) /* Allocation comes from a memcg-accounted resource */

#define __GFP_WRITE	((__force gfp_t)___GFP_WRITE)	/* Allocator intends to dirty page */



/*

include/trace/events/gfpflags.h

+1 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ 
	{(unsigned long)__GFP_HARDWALL,		"GFP_HARDWALL"},	\

	{(unsigned long)__GFP_THISNODE,		"GFP_THISNODE"},	\

	{(unsigned long)__GFP_RECLAIMABLE,	"GFP_RECLAIMABLE"},	\

	{(unsigned long)__GFP_KMEMCG,		"GFP_KMEMCG"},		\

	{(unsigned long)__GFP_MOVABLE,		"GFP_MOVABLE"},		\

	{(unsigned long)__GFP_NOTRACK,		"GFP_NOTRACK"},		\

	{(unsigned long)__GFP_NO_KSWAPD,	"GFP_NO_KSWAPD"},	\