Revert "cpusets: randomize node rotor used in cpuset_mem_spread_node()"

This reverts commit 0ac0c0d0f837c499afd02a802f9cf52d3027fa3b, which
caused cross-architecture build problems for all the wrong reasons.
IA64 already added its own version of __node_random(), but the fact is,
there is nothing architectural about the function, and the original
commit was just badly done. Revert it, since no fix is forthcoming.

Requested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 0 insertions, 9 deletions

diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 6fb2720882fc..daf8c480c786 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -141,7 +141,6 @@ 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 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);
 
 #define BITMAP_LAST_WORD_MASK(nbits)                                    \
 (                                                                       \
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index 8a8f1d09c133..dba35e413371 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -66,8 +66,6 @@
  * int num_online_nodes()               Number of online Nodes
  * int num_possible_nodes()             Number of all possible Nodes
  *
- * int node_random(mask)                Random node with set bit in mask
- *
  * int node_online(node)                Is some node online?
  * int node_possible(node)              Is some node possible?
  *
@@ -432,10 +430,6 @@ static inline void node_set_offline(int nid)
         node_clear_state(nid, N_ONLINE);
         nr_online_nodes = num_node_state(N_ONLINE);
 }
-
-#define node_random(mask) __node_random(&(mask))
-extern int __node_random(const nodemask_t *maskp);
-
 #else
 
 static inline int node_state(int node, enum node_states state)
@@ -466,8 +460,6 @@ static inline int num_node_state(enum node_states state)
 
 #define node_set_online(node)      node_set_state((node), N_ONLINE)
 #define node_set_offline(node)     node_clear_state((node), N_ONLINE)
-
-static inline int node_random(const nodemask_t mask) { return 0; }
 #endif
 
 #define node_online_map         node_states[N_ONLINE]