Merge branch 'akpm' (fixes from Andrew)

Merge emailed fixes from Andrew Morton:
 "Bunch of fixes:

   - delayed IPC updates.  I held back on this because of some possible
     outstanding bug reports, but they appear to have been addressed in
     later versions

   - A bunch of MAINTAINERS updates

   - Yet Another RTC driver.  I'd held this back while a couple of
     little issues were being worked out.

  I'm expecting an intrusive-but-simple patchset from Joe Perches which
  splits up printk.c into kernel/printk/*.  That will be a pig to
  maintain for two months so if it passes testing I'd like to get it
  upstream after a week or so."

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (35 commits)
  printk: fix incorrect length from print_time() when seconds > 99999
  drivers/rtc/rtc-vt8500.c: fix handling of data passed in struct rtc_time
  drivers/rtc/rtc-vt8500.c: correct handling of CR_24H bitfield
  rtc: add RTC driver for TPS6586x
  MAINTAINERS: fix drivers/staging/sm7xx/
  MAINTAINERS: remove include/linux/of_pwm.h
  MAINTAINERS: remove arch/*/lib/perf_event*.c
  MAINTAINERS: remove drivers/mmc/host/imxmmc.*
  MAINTAINERS: fix Documentation/mei/
  MAINTAINERS: remove arch/x86/platform/mrst/pmu.*
  MAINTAINERS: remove firmware/isci/
  MAINTAINERS: fix drivers/ieee802154/
  MAINTAINERS: fix .../plat-mxc/include/mach/imxfb.h
  MAINTAINERS: remove drivers/video/epson1355fb.c
  MAINTAINERS: fix drivers/media/usb/dvb-usb/cxusb*
  MAINTAINERS: adjust for UAPI
  MAINTAINERS: fix drivers/media/platform/atmel-isi.c
  MAINTAINERS: fix arch/arm/mach-at91/include/mach/at_hdmac.h
  MAINTAINERS: fix drivers/rtc/rtc-vt8500.c
  MAINTAINERS: remove arch/arm/plat-s5p/
  ...

1 files changed, 0 insertions, 27 deletions

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4ba5e37127fc..bc6cc0e913bd 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -221,11 +221,6 @@ EXPORT_SYMBOL(nr_online_nodes);
 
 int page_group_by_mobility_disabled __read_mostly;
 
-/*
- * NOTE:
- * Don't use set_pageblock_migratetype(page, MIGRATE_ISOLATE) directly.
- * Instead, use {un}set_pageblock_isolate.
- */
 void set_pageblock_migratetype(struct page *page, int migratetype)
 {
 
@@ -1655,20 +1650,6 @@ static bool __zone_watermark_ok(struct zone *z, int order, unsigned long mark,
 	return true;
 }
 
-#ifdef CONFIG_MEMORY_ISOLATION
-static inline unsigned long nr_zone_isolate_freepages(struct zone *zone)
-{
-	if (unlikely(zone->nr_pageblock_isolate))
-		return zone->nr_pageblock_isolate * pageblock_nr_pages;
-	return 0;
-}
-#else
-static inline unsigned long nr_zone_isolate_freepages(struct zone *zone)
-{
-	return 0;
-}
-#endif
-
 bool zone_watermark_ok(struct zone *z, int order, unsigned long mark,
 		      int classzone_idx, int alloc_flags)
 {
@@ -1684,14 +1665,6 @@ bool zone_watermark_ok_safe(struct zone *z, int order, unsigned long mark,
 	if (z->percpu_drift_mark && free_pages < z->percpu_drift_mark)
 		free_pages = zone_page_state_snapshot(z, NR_FREE_PAGES);
 
-	/*
-	 * If the zone has MIGRATE_ISOLATE type free pages, we should consider
-	 * it.  nr_zone_isolate_freepages is never accurate so kswapd might not
-	 * sleep although it could do so.  But this is more desirable for memory
-	 * hotplug than sleeping which can cause a livelock in the direct
-	 * reclaim path.
-	 */
-	free_pages -= nr_zone_isolate_freepages(z);
 	return __zone_watermark_ok(z, order, mark, classzone_idx, alloc_flags,
 								free_pages);
 }