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| author | Minchan Kim <minchan@kernel.org> | 2013-02-22 16:33:58 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-23 17:50:15 -0800 |
| commit | 194159fbcc0d6ac1351837d3cd7a27a4af0219a6 (patch) | |
| tree | a5a960a4c8698001db50a987015131bb5d256c6e /mm/vmstat.c | |
| parent | c60514b6314137a9505c60966fda2094b22a2fda (diff) | |
| download | op-kernel-dev-194159fbcc0d6ac1351837d3cd7a27a4af0219a6.zip op-kernel-dev-194159fbcc0d6ac1351837d3cd7a27a4af0219a6.tar.gz | |
mm: remove MIGRATE_ISOLATE check in hotpath
Several functions test MIGRATE_ISOLATE and some of those are hotpath but
MIGRATE_ISOLATE is used only if we enable CONFIG_MEMORY_ISOLATION(ie,
CMA, memory-hotplug and memory-failure) which are not common config
option. So let's not add unnecessary overhead and code when we don't
enable CONFIG_MEMORY_ISOLATION.
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmstat.c')
| -rw-r--r-- | mm/vmstat.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c index e3475f5..c9d1f68 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -628,7 +628,9 @@ static char * const migratetype_names[MIGRATE_TYPES] = { #ifdef CONFIG_CMA "CMA", #endif +#ifdef CONFIG_MEMORY_ISOLATION "Isolate", +#endif }; static void *frag_start(struct seq_file *m, loff_t *pos) |
