linux-kernel - [PATCH v2 06/13] slab: Add kmem_cache_gfp

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Date:	Fri,  9 Mar 2012 12:39:09 -0800
From:	Suleiman Souhlal <ssouhlal@...eBSD.org>
To:	cgroups@...r.kernel.org
Cc:	suleiman@...gle.com, glommer@...allels.com,
	kamezawa.hiroyu@...fujitsu.com, penberg@...nel.org, cl@...ux.com,
	yinghan@...gle.com, hughd@...gle.com, gthelen@...gle.com,
	peterz@...radead.org, dan.magenheimer@...cle.com,
	hannes@...xchg.org, mgorman@...e.de,
	James.Bottomley@...senPartnership.com, linux-mm@...ck.org,
	devel@...nvz.org, linux-kernel@...r.kernel.org,
	Suleiman Souhlal <ssouhlal@...eBSD.org>
Subject: [PATCH v2 06/13] slab: Add kmem_cache_gfp_flags() helper function.

This function returns the gfp flags that are always applied to
allocations of a kmem_cache.

Signed-off-by: Suleiman Souhlal <suleiman@...gle.com>
---
 include/linux/slab_def.h |    6 ++++++
 include/linux/slob_def.h |    6 ++++++
 include/linux/slub_def.h |    6 ++++++
 3 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index fbd1117..25f9a6a 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -159,6 +159,12 @@ found:
 	return __kmalloc(size, flags);
 }
 
+static inline gfp_t
+kmem_cache_gfp_flags(struct kmem_cache *cachep)
+{
+	return cachep->gfpflags;
+}
+
 #ifdef CONFIG_NUMA
 extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
 extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
diff --git a/include/linux/slob_def.h b/include/linux/slob_def.h
index 0ec00b3..3fa527d 100644
--- a/include/linux/slob_def.h
+++ b/include/linux/slob_def.h
@@ -34,4 +34,10 @@ static __always_inline void *__kmalloc(size_t size, gfp_t flags)
 	return kmalloc(size, flags);
 }
 
+static inline gfp_t
+kmem_cache_gfp_flags(struct kmem_cache *cachep)
+{
+	return 0;
+}
+
 #endif /* __LINUX_SLOB_DEF_H */
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index a32bcfd..5911d81 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -313,4 +313,10 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 }
 #endif
 
+static inline gfp_t
+kmem_cache_gfp_flags(struct kmem_cache *cachep)
+{
+	return cachep->allocflags;
+}
+
 #endif /* _LINUX_SLUB_DEF_H */
-- 
1.7.7.3

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