bitmap: introduce bitmap_set, bitmap_clear, bitmap_find_next_zero_area

[pandora-kernel.git] / include / linux / bitmap.h

diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 756d78b..daf8c48 100644 (file)
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -42,6 +42,9 @@
  * bitmap_empty(src, nbits)                    Are all bits zero in *src?
  * bitmap_full(src, nbits)                     Are all bits set in *src?
  * bitmap_weight(src, nbits)                   Hamming Weight: number set bits
+ * bitmap_set(dst, pos, nbits)                 Set specified bit area
+ * bitmap_clear(dst, pos, nbits)               Clear specified bit area
+ * bitmap_find_next_zero_area(buf, len, pos, n, mask)  Find bit free area
  * bitmap_shift_right(dst, src, n, nbits)      *dst = *src >> n
  * bitmap_shift_left(dst, src, n, nbits)       *dst = *src << n
  * bitmap_remap(dst, src, old, new, nbits)     *dst = map(old, new)(src)
@@ -108,6 +111,14 @@ extern int __bitmap_subset(const unsigned long *bitmap1,
                        const unsigned long *bitmap2, int bits);
 extern int __bitmap_weight(const unsigned long *bitmap, int bits);
 
+extern void bitmap_set(unsigned long *map, int i, int len);
+extern void bitmap_clear(unsigned long *map, int start, int nr);
+extern unsigned long bitmap_find_next_zero_area(unsigned long *map,
+                                        unsigned long size,
+                                        unsigned long start,
+                                        unsigned int nr,
+                                        unsigned long align_mask);
+
 extern int bitmap_scnprintf(char *buf, unsigned int len,
                        const unsigned long *src, int nbits);
 extern int __bitmap_parse(const char *buf, unsigned int buflen, int is_user,