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xfs: simplify kmem_{zone_}zalloc

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Introduce flag KM_ZERO which is used to alloc zeroed entry, and convert
kmem_{zone_}zalloc to call kmem_{zone_}alloc() with KM_ZERO directly,
in order to avoid the setting to zero step. 
And following Dave's suggestion, make kmem_{zone_}zalloc static inline
into kmem.h as they're now just a simple wrapper.

V2:
  Make kmem_{zone_}zalloc static inline into kmem.h as Dave suggested.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Gu Zheng
2013-11-04 18:21:05 +08:00
committed by Ben Myers
parent d123031a56
commit 359d992bcd
2 changed files with 18 additions and 25 deletions
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22
fs/xfs/kmem.c
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@@ -62,17 +62,6 @@ kmem_alloc(size_t size, xfs_km_flags_t flags)
} while (1);
}
void *
kmem_zalloc(size_t size, xfs_km_flags_t flags)
{
void *ptr;
ptr = kmem_alloc(size, flags);
if (ptr)
memset((char *)ptr, 0, (int)size);
return ptr;
}
void *
kmem_zalloc_large(size_t size, xfs_km_flags_t flags)
{
@@ -128,14 +117,3 @@ kmem_zone_alloc(kmem_zone_t *zone, xfs_km_flags_t flags)
congestion_wait(BLK_RW_ASYNC, HZ/50);
} while (1);
}
void *
kmem_zone_zalloc(kmem_zone_t *zone, xfs_km_flags_t flags)
{
void *ptr;
ptr = kmem_zone_alloc(zone, flags);
if (ptr)
memset((char *)ptr, 0, kmem_cache_size(zone));
return ptr;
}