Merge branch 'linus' into x86/quirks

Conflicts:
	arch/x86/kernel/early-quirks.c

3 files changed, 10 insertions, 5 deletions

diff --git a/mm/bounce.c b/mm/bounce.c
index b6d2d0f1019b..06722c403058 100644
--- a/mm/bounce.c
+++ b/mm/bounce.c
@@ -267,7 +267,7 @@ void blk_queue_bounce(struct request_queue *q, struct bio **bio_orig)
         /*
          * Data-less bio, nothing to bounce
          */
-        if (bio_empty_barrier(*bio_orig))
+        if (!bio_has_data(*bio_orig))
                 return;
 
         /*
diff --git a/mm/highmem.c b/mm/highmem.c
index e16e1523b688..b36b83b920ff 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -70,6 +70,7 @@ static DECLARE_WAIT_QUEUE_HEAD(pkmap_map_wait);
 static void flush_all_zero_pkmaps(void)
 {
         int i;
+        int need_flush = 0;
 
         flush_cache_kmaps();
 
@@ -101,8 +102,10 @@ static void flush_all_zero_pkmaps(void)
                           &pkmap_page_table[i]);
 
                 set_page_address(page, NULL);
+                need_flush = 1;
         }
-        flush_tlb_kernel_range(PKMAP_ADDR(0), PKMAP_ADDR(LAST_PKMAP));
+        if (need_flush)
+                flush_tlb_kernel_range(PKMAP_ADDR(0), PKMAP_ADDR(LAST_PKMAP));
 }
 
 /**
diff --git a/mm/slob.c b/mm/slob.c
index 4c82dd41f32e..cb675d126791 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -514,9 +514,11 @@ size_t ksize(const void *block)
                 return 0;
 
         sp = (struct slob_page *)virt_to_page(block);
-        if (slob_page(sp))
-                return ((slob_t *)block - 1)->units + SLOB_UNIT;
-        else
+        if (slob_page(sp)) {
+                int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
+                unsigned int *m = (unsigned int *)(block - align);
+                return SLOB_UNITS(*m) * SLOB_UNIT;
+        } else
                 return sp->page.private;
 }