mm: fix swapped Movable and Reclaimable in /proc/pagetypeinfo
authorVlastimil Babka <vbabka@suse.cz>
Fri, 11 Dec 2015 21:40:29 +0000 (13:40 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 12 Dec 2015 18:15:34 +0000 (10:15 -0800)
commit475a2f905d5a41d5fc569ef21841be67d0a7f788
tree73e672a2d9894026016772113420304c1bd6f0a3
parent9516a18a9a253a94292e74f11f92083126c5a237
mm: fix swapped Movable and Reclaimable in /proc/pagetypeinfo

Commit 016c13daa5c9 ("mm, page_alloc: use masks and shifts when
converting GFP flags to migrate types") has swapped MIGRATE_MOVABLE and
MIGRATE_RECLAIMABLE in the enum definition.  However, migratetype_names
wasn't updated to reflect that.

As a result, the file /proc/pagetypeinfo shows the counts for Movable as
Reclaimable and vice versa.

Additionally, commit 0aaa29a56e4f ("mm, page_alloc: reserve pageblocks
for high-order atomic allocations on demand") introduced
MIGRATE_HIGHATOMIC, but did not add a letter to distinguish it into
show_migration_types(), so it doesn't appear in the listing of free
areas during page alloc failures or oom kills.

This patch fixes both problems.  The atomic reserves will show with a
letter 'H' in the free areas listings.

Fixes: 016c13daa5c9 ("mm, page_alloc: use masks and shifts when converting GFP flags to migrate types")
Fixes: 0aaa29a56e4f ("mm, page_alloc: reserve pageblocks for high-order atomic allocations on demand")
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/page_alloc.c
mm/vmstat.c