mm: add a __GFP_KMEMCG flag (7a64bf05) · Commits · 戴 / test

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:

Glauber Costa <glommer@parallels.com> Acked-by:

Johannes Weiner <hannes@cmpxchg.org> Acked-by:

Rik van Riel <riel@redhat.com> Acked-by:

Mel Gorman <mel@csn.ul.ie> Acked-by:

Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by:

Michal Hocko <mhocko@suse.cz> Acked-by:

Christoph 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:

Andrew Morton <akpm@linux-foundation.org> Signed-off-by:

Linus Torvalds <torvalds@linux-foundation.org>

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"}, \

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