1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index acad1105d942..43b406def35f 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -46,6 +46,8 @@
  * bitmap_shift_left(dst, src, n, nbits)        *dst = *src << n
  * bitmap_remap(dst, src, old, new, nbits)      *dst = map(old, new)(src)
  * bitmap_bitremap(oldbit, old, new, nbits)     newbit = map(old, new)(oldbit)
+ * bitmap_onto(dst, orig, relmap, nbits)        *dst = orig relative to relmap
+ * bitmap_fold(dst, orig, sz, nbits)            dst bits = orig bits mod sz
  * bitmap_scnprintf(buf, len, src, nbits)       Print bitmap src to buf
  * bitmap_parse(buf, buflen, dst, nbits)        Parse bitmap dst from kernel buf
  * bitmap_parse_user(ubuf, ulen, dst, nbits)    Parse bitmap dst from user buf
@@ -108,6 +110,7 @@ extern int __bitmap_weight(const unsigned long *bitmap, int bits);
 
 extern int bitmap_scnprintf(char *buf, unsigned int len,
                         const unsigned long *src, int nbits);
+extern int bitmap_scnprintf_len(unsigned int len);
 extern int __bitmap_parse(const char *buf, unsigned int buflen, int is_user,
                         unsigned long *dst, int nbits);
 extern int bitmap_parse_user(const char __user *ubuf, unsigned int ulen,
@@ -120,6 +123,10 @@ extern void bitmap_remap(unsigned long *dst, const unsigned long *src,
                 const unsigned long *old, const unsigned long *new, int bits);
 extern int bitmap_bitremap(int oldbit,
                 const unsigned long *old, const unsigned long *new, int bits);
+extern void bitmap_onto(unsigned long *dst, const unsigned long *orig,
+                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);