o Removed an unused function.

o Made bit field argument to has_bit const since the function
  doesn't modify it.

misc/subr.c

@@ -25,7 +25,7 @@ clear_bit(uint8_t *bits, unsigned long index)
 }
 
 int
-has_bit(uint8_t *bits, unsigned long index)
+has_bit(const uint8_t *bits, unsigned long index)
 {
     return bits[index / 8] & (1 << (7 - index % 8));
 }
@@ -131,16 +131,6 @@ canon_path(const char *path, char **res)
     return 0;
 }
 
-size_t
-round_to_page(size_t size)
-{
-    size_t psize = getpagesize();
-    size_t rem = size % psize;
-    if (rem != 0)
-        size += psize - rem;
-    return size;
-}
-
 long
 rand_between(long min, long max)
 {

misc/subr.h

@@ -11,13 +11,11 @@ int mkdirs(char *path);
 int vopen(int *resfd, int flags, const char *fmt, ...);
 
 void set_bit(uint8_t *bits, unsigned long index);
-int has_bit(uint8_t *bits, unsigned long index);
+int has_bit(const uint8_t *bits, unsigned long index);
 void clear_bit(uint8_t *bits, unsigned long index);
 
 int canon_path(const char *path, char **res);
 
-size_t round_to_page(size_t size);
-
 long rand_between(long min, long max);
 
 #endif