1 files changed, 18 insertions, 3 deletions

diff --git a/fs/xfs/kmem.h b/fs/xfs/kmem.h
index 3a7371cab508..64db0e53edea 100644
--- a/fs/xfs/kmem.h
+++ b/fs/xfs/kmem.h
@@ -32,6 +32,7 @@ typedef unsigned __bitwise xfs_km_flags_t;
 #define KM_NOSLEEP      ((__force xfs_km_flags_t)0x0002u)
 #define KM_NOFS         ((__force xfs_km_flags_t)0x0004u)
 #define KM_MAYFAIL      ((__force xfs_km_flags_t)0x0008u)
+#define KM_ZERO         ((__force xfs_km_flags_t)0x0010u)
 
 /*
  * We use a special process flag to avoid recursive callbacks into
@@ -43,7 +44,7 @@ kmem_flags_convert(xfs_km_flags_t flags)
 {
         gfp_t   lflags;
 
-        BUG_ON(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL));
+        BUG_ON(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL|KM_ZERO));
 
         if (flags & KM_NOSLEEP) {
                 lflags = GFP_ATOMIC | __GFP_NOWARN;
@@ -52,11 +53,14 @@ kmem_flags_convert(xfs_km_flags_t flags)
                 if ((current->flags & PF_FSTRANS) || (flags & KM_NOFS))
                         lflags &= ~__GFP_FS;
         }
+
+        if (flags & KM_ZERO)
+                lflags |= __GFP_ZERO;
+
         return lflags;
 }
 
 extern void *kmem_alloc(size_t, xfs_km_flags_t);
-extern void *kmem_zalloc(size_t, xfs_km_flags_t);
 extern void *kmem_zalloc_large(size_t size, xfs_km_flags_t);
 extern void *kmem_realloc(const void *, size_t, size_t, xfs_km_flags_t);
 extern void  kmem_free(const void *);
@@ -64,6 +68,12 @@ extern void  kmem_free(const void *);
 
 extern void *kmem_zalloc_greedy(size_t *, size_t, size_t);
 
+static inline void *
+kmem_zalloc(size_t size, xfs_km_flags_t flags)
+{
+        return kmem_alloc(size, flags | KM_ZERO);
+}
+
 /*
  * Zone interfaces
  */
@@ -102,6 +112,11 @@ kmem_zone_destroy(kmem_zone_t *zone)
 }
 
 extern void *kmem_zone_alloc(kmem_zone_t *, xfs_km_flags_t);
-extern void *kmem_zone_zalloc(kmem_zone_t *, xfs_km_flags_t);
+
+static inline void *
+kmem_zone_zalloc(kmem_zone_t *zone, xfs_km_flags_t flags)
+{
+        return kmem_zone_alloc(zone, flags | KM_ZERO);
+}
 
 #endif /* __XFS_SUPPORT_KMEM_H__ */