+ mm-oom-analysis-add-buffer-cache-information-to-show_free_areas.patch added to -mm tree

[akpm@linux-foundation.org]

The patch titled
     mm: oom analysis: add buffer cache information to show_free_areas()
has been added to the -mm tree.  Its filename is
     mm-oom-analysis-add-buffer-cache-information-to-show_free_areas.patch

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------------------------------------------------------
Subject: mm: oom analysis: add buffer cache information to show_free_areas()
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>

It is often useful to know the statistics for all pages that are handled
like page cache pages when looking at OOM log output.

Therefore show_free_areas() should also display buffer cache statistics.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Wu Fengguang <fengguang.wu@intel.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page_alloc.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN mm/page_alloc.c~mm-oom-analysis-add-buffer-cache-information-to-show_free_areas mm/page_alloc.c
--- a/mm/page_alloc.c~mm-oom-analysis-add-buffer-cache-information-to-show_free_areas
+++ a/mm/page_alloc.c
@@ -2137,7 +2137,7 @@ void show_free_areas(void)
 	printk("Active_anon:%lu active_file:%lu inactive_anon:%lu\n"
 		" inactive_file:%lu"
 		" unevictable:%lu"
-		" dirty:%lu writeback:%lu unstable:%lu\n"
+		" dirty:%lu writeback:%lu unstable:%lu buffer:%lu\n"
 		" free:%lu slab_reclaimable:%lu slab_unreclaimable:%lu\n"
 		" mapped:%lu pagetables:%lu bounce:%lu\n",
 		global_page_state(NR_ACTIVE_ANON),
@@ -2148,6 +2148,7 @@ void show_free_areas(void)
 		global_page_state(NR_FILE_DIRTY),
 		global_page_state(NR_WRITEBACK),
 		global_page_state(NR_UNSTABLE_NFS),
+		nr_blockdev_pages(),
 		global_page_state(NR_FREE_PAGES),
 		global_page_state(NR_SLAB_RECLAIMABLE),
 		global_page_state(NR_SLAB_UNRECLAIMABLE),
_

Patches currently in -mm which might be from kosaki.motohiro@jp.fujitsu.com are

linux-next.patch
readahead-add-blk_run_backing_dev.patch
readahead-add-blk_run_backing_dev-fix.patch
readahead-add-blk_run_backing_dev-fix-fix-2.patch
mm-clean-up-page_remove_rmap.patch
mm-show_free_areas-display-slab-pages-in-two-separate-fields.patch
mm-oom-analysis-add-per-zone-statistics-to-show_free_areas.patch
mm-oom-analysis-add-buffer-cache-information-to-show_free_areas.patch
mm-oom-analysis-show-kernel-stack-usage-in-proc-meminfo-and-oom-log-output.patch
mm-oom-analysis-add-shmem-vmstat.patch
getrusage-fill-ru_maxrss-value.patch
getrusage-fill-ru_maxrss-value-update.patch
fs-symlink-write_begin-allocation-context-fix-reiser4-fix.patch