Merge branch 'linus' into core/rcu

Merge reason: Backmerge latest upstream to queue up dependent fix in the
              scheduler.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

3 files changed, 19 insertions, 3 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 4cdab452bfe2..5e3407d997b2 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -355,7 +355,7 @@ config SLUB_STATS
 config DEBUG_KMEMLEAK
         bool "Kernel memory leak detector"
         depends on DEBUG_KERNEL && EXPERIMENTAL && !MEMORY_HOTPLUG && \
-                (X86 || ARM || PPC || S390)
+                (X86 || ARM || PPC || S390 || SUPERH)
 
         select DEBUG_FS if SYSFS
         select STACKTRACE if STACKTRACE_SUPPORT
diff --git a/lib/hweight.c b/lib/hweight.c
index 389424ecb129..63ee4eb1228d 100644
--- a/lib/hweight.c
+++ b/lib/hweight.c
@@ -11,11 +11,18 @@
 
 unsigned int hweight32(unsigned int w)
 {
+#ifdef ARCH_HAS_FAST_MULTIPLIER
+        w -= (w >> 1) & 0x55555555;
+        w =  (w & 0x33333333) + ((w >> 2) & 0x33333333);
+        w =  (w + (w >> 4)) & 0x0f0f0f0f;
+        return (w * 0x01010101) >> 24;
+#else
         unsigned int res = w - ((w >> 1) & 0x55555555);
         res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
         res = (res + (res >> 4)) & 0x0F0F0F0F;
         res = res + (res >> 8);
         return (res + (res >> 16)) & 0x000000FF;
+#endif
 }
 EXPORT_SYMBOL(hweight32);
 
diff --git a/lib/lmb.c b/lib/lmb.c
index 9cee17142b2c..b1fc52606524 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -205,9 +205,8 @@ long lmb_add(u64 base, u64 size)
 
 }
 
-long lmb_remove(u64 base, u64 size)
+static long __lmb_remove(struct lmb_region *rgn, u64 base, u64 size)
 {
-        struct lmb_region *rgn = &(lmb.memory);
         u64 rgnbegin, rgnend;
         u64 end = base + size;
         int i;
@@ -254,6 +253,16 @@ long lmb_remove(u64 base, u64 size)
         return lmb_add_region(rgn, end, rgnend - end);
 }
 
+long lmb_remove(u64 base, u64 size)
+{
+        return __lmb_remove(&lmb.memory, base, size);
+}
+
+long __init lmb_free(u64 base, u64 size)
+{
+        return __lmb_remove(&lmb.reserved, base, size);
+}
+
 long __init lmb_reserve(u64 base, u64 size)
 {
         struct lmb_region *_rgn = &lmb.reserved;