Merge branch 'akpm' (patches from Andrew)

Merge second patch-bomb from Andrew Morton:

 - a couple of hotfixes

 - the rest of MM

 - a new timer slack control in procfs

 - a couple of procfs fixes

 - a few misc things

 - some printk tweaks

 - lib/ updates, notably to radix-tree.

 - add my and Nick Piggin's old userspace radix-tree test harness to
   tools/testing/radix-tree/.  Matthew said it was a godsend during the
   radix-tree work he did.

 - a few code-size improvements, switching to __always_inline where gcc
   screwed up.

 - partially implement character sets in sscanf

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
  sscanf: implement basic character sets
  lib/bug.c: use common WARN helper
  param: convert some "on"/"off" users to strtobool
  lib: add "on"/"off" support to kstrtobool
  lib: update single-char callers of strtobool()
  lib: move strtobool() to kstrtobool()
  include/linux/unaligned: force inlining of byteswap operations
  include/uapi/linux/byteorder, swab: force inlining of some byteswap operations
  include/asm-generic/atomic-long.h: force inlining of some atomic_long operations
  usb: common: convert to use match_string() helper
  ide: hpt366: convert to use match_string() helper
  ata: hpt366: convert to use match_string() helper
  power: ab8500: convert to use match_string() helper
  power: charger_manager: convert to use match_string() helper
  drm/edid: convert to use match_string() helper
  pinctrl: convert to use match_string() helper
  device property: convert to use match_string() helper
  lib/string: introduce match_string() helper
  radix-tree tests: add test for radix_tree_iter_next
  radix-tree tests: add regression3 test
  ...

1 files changed, 15 insertions, 16 deletions

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index fb42a5b..ae7d20b 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -469,8 +469,8 @@ overflow:
 		goto retry;
 	}
 	if (printk_ratelimit())
-		pr_warn("vmap allocation for size %lu failed: "
-			"use vmalloc=<size> to increase size.\n", size);
+		pr_warn("vmap allocation for size %lu failed: use vmalloc=<size> to increase size\n",
+			size);
 	kfree(va);
 	return ERR_PTR(-EBUSY);
 }
@@ -531,22 +531,21 @@ static void unmap_vmap_area(struct vmap_area *va)
 static void vmap_debug_free_range(unsigned long start, unsigned long end)
 {
 	/*
-	 * Unmap page tables and force a TLB flush immediately if
-	 * CONFIG_DEBUG_PAGEALLOC is set. This catches use after free
-	 * bugs similarly to those in linear kernel virtual address
-	 * space after a page has been freed.
+	 * Unmap page tables and force a TLB flush immediately if pagealloc
+	 * debugging is enabled.  This catches use after free bugs similarly to
+	 * those in linear kernel virtual address space after a page has been
+	 * freed.
 	 *
-	 * All the lazy freeing logic is still retained, in order to
-	 * minimise intrusiveness of this debugging feature.
+	 * All the lazy freeing logic is still retained, in order to minimise
+	 * intrusiveness of this debugging feature.
 	 *
-	 * This is going to be *slow* (linear kernel virtual address
-	 * debugging doesn't do a broadcast TLB flush so it is a lot
-	 * faster).
+	 * This is going to be *slow* (linear kernel virtual address debugging
+	 * doesn't do a broadcast TLB flush so it is a lot faster).
 	 */
-#ifdef CONFIG_DEBUG_PAGEALLOC
-	vunmap_page_range(start, end);
-	flush_tlb_kernel_range(start, end);
-#endif
+	if (debug_pagealloc_enabled()) {
+		vunmap_page_range(start, end);
+		flush_tlb_kernel_range(start, end);
+	}
 }
 
 /*
@@ -1086,7 +1085,7 @@ void vm_unmap_ram(const void *mem, unsigned int count)
 	BUG_ON(!addr);
 	BUG_ON(addr < VMALLOC_START);
 	BUG_ON(addr > VMALLOC_END);
-	BUG_ON(!IS_ALIGNED(addr, PAGE_SIZE));
+	BUG_ON(!PAGE_ALIGNED(addr));
 
 	debug_check_no_locks_freed(mem, size);
 	vmap_debug_free_range(addr, addr+size);