lib: bitmap: change parameter of bitmap_*_region to unsigned
Changing the pos parameter of __reg_op to unsigned allows the compiler
to generate slightly smaller and simpler code. Also update its callers
bitmap_*_region to receive and pass unsigned int. The return types of
bitmap_find_free_region and bitmap_allocate_region are still int to
allow a negative error code to be returned. An int is certainly capable
of representing any realistic return value.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 83c1c7d..2100378 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -140,9 +140,9 @@
const unsigned long *relmap, int bits);
extern void bitmap_fold(unsigned long *dst, const unsigned long *orig,
int sz, int bits);
-extern int bitmap_find_free_region(unsigned long *bitmap, int bits, int order);
-extern void bitmap_release_region(unsigned long *bitmap, int pos, int order);
-extern int bitmap_allocate_region(unsigned long *bitmap, int pos, int order);
+extern int bitmap_find_free_region(unsigned long *bitmap, unsigned int bits, int order);
+extern void bitmap_release_region(unsigned long *bitmap, unsigned int pos, int order);
+extern int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order);
extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits);
extern int bitmap_ord_to_pos(const unsigned long *bitmap, int n, int bits);