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Subject[PATCH] slab: Fix compilation error in case of !CONFIG_NUMA
Date
Move the definition of slab_free() outside of #ifdef CONFIG_NUMA since it
is used by code which is not NUMA specific. Fixes the following error
introduced by the following commit:
5da1c3c725ab slab: recharge slab pages to the allocating memory cgroup

CC mm/slab.o
/home/ZZZZZ/linux/mm/slab.c: In function ‘slab_alloc’:
/home/ZZZZZ/linux/mm/slab.c:3260:4: error: implicit declaration of function ‘slab_free’ [-Werror=implicit-function-declaration]
slab_free(cachep, objp);
^
/home/ZZZZZ/linux/mm/slab.c: At top level:
/home/ZZZZZ/linux/mm/slab.c:3534:29: warning: conflicting types for ‘slab_free’ [enabled by default]
static __always_inline void slab_free(struct kmem_cache *cachep, void *objp)
^
/home/ZZZZZ/linux/mm/slab.c:3534:29: error: static declaration of ‘slab_free’ follows non-static declaration
/home/ZZZZZ/linux/mm/slab.c:3260:4: note: previous implicit declaration of ‘slab_free’ was here
slab_free(cachep, objp);
^
cc1: some warnings being treated as errors
/home/ZZZZZ/linux/scripts/Makefile.build:257: recipe for target 'mm/slab.o' failed
make[2]: *** [mm/slab.o] Error 1
/home/ZZZZZ/linux/Makefile:953: recipe for target 'mm' failed
make[1]: *** [mm] Error 2
make[1]: *** Waiting for unfinished jobs....
CHK kernel/config_data.h

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
mm/slab.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 61b01c2ae1d9..301ede1c6784 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3133,8 +3133,6 @@ done:
return obj;
}

-static __always_inline void slab_free(struct kmem_cache *cachep, void *objp);
-
static __always_inline void *
slab_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid,
unsigned long caller)
@@ -3228,6 +3226,8 @@ __do_cache_alloc(struct kmem_cache *cachep, gfp_t flags)

#endif /* CONFIG_NUMA */

+static __always_inline void slab_free(struct kmem_cache *cachep, void *objp);
+
static __always_inline void *
slab_alloc(struct kmem_cache *cachep, gfp_t flags, unsigned long caller)
{
--
2.1.3
--
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