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LU-9859 libcfs: move tgt_descs to standard Linux bitmaps.
[fs/lustre-release.git] / libcfs / include / libcfs / linux / linux-mem.h
index 1694b80..80668b1 100644 (file)
@@ -74,6 +74,24 @@ static inline void memalloc_noreclaim_restore(unsigned int flags)
 }
 #endif /* !HAVE_MEMALLOC_RECLAIM */
 
+#ifndef HAVE_BITMAP_ALLOC
+static inline unsigned long *bitmap_alloc(unsigned int nbits, gfp_t flags)
+{
+       return kmalloc_array(BITS_TO_LONGS(nbits), sizeof(unsigned long),
+                            flags);
+}
+
+static inline unsigned long *bitmap_zalloc(unsigned int nbits, gfp_t flags)
+{
+       return bitmap_alloc(nbits, flags | __GFP_ZERO);
+}
+
+static inline void bitmap_free(const unsigned long *bitmap)
+{
+       kfree(bitmap);
+}
+#endif /* !HAVE_BITMAP_ALLOC */
+
 /*
  * Shrinker
  */