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authorMinchan Kim <minchan@kernel.org>2012-12-20 15:05:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-20 17:40:18 -0800
commit010fc29a45a2e8dbc08bf45ef80b8622619aaae0 (patch)
treeb5ef6be5185c4a57a3231b07fdb15b902383968e /mm/compaction.c
parent787314c35fbb97e02823a1b8eb8cfa58f366cd49 (diff)
downloadlinux-010fc29a45a2e8dbc08bf45ef80b8622619aaae0.tar.gz
compaction: fix build error in CMA && !COMPACTION
isolate_freepages_block() and isolate_migratepages_range() are used for CMA as well as compaction so it breaks build for CONFIG_CMA && !CONFIG_COMPACTION. This patch fixes it. [akpm@linux-foundation.org: add "do { } while (0)", per Mel] Signed-off-by: Minchan Kim <minchan@kernel.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c26
1 files changed, 20 insertions, 6 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index 5ad7f4f4d6f..6b807e46649 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -17,6 +17,21 @@
#include <linux/balloon_compaction.h>
#include "internal.h"
+#ifdef CONFIG_COMPACTION
+static inline void count_compact_event(enum vm_event_item item)
+{
+ count_vm_event(item);
+}
+
+static inline void count_compact_events(enum vm_event_item item, long delta)
+{
+ count_vm_events(item, delta);
+}
+#else
+#define count_compact_event(item) do { } while (0)
+#define count_compact_events(item, delta) do { } while (0)
+#endif
+
#if defined CONFIG_COMPACTION || defined CONFIG_CMA
#define CREATE_TRACE_POINTS
@@ -303,10 +318,9 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
if (blockpfn == end_pfn)
update_pageblock_skip(cc, valid_page, total_isolated, false);
- count_vm_events(COMPACTFREE_SCANNED, nr_scanned);
+ count_compact_events(COMPACTFREE_SCANNED, nr_scanned);
if (total_isolated)
- count_vm_events(COMPACTISOLATED, total_isolated);
-
+ count_compact_events(COMPACTISOLATED, total_isolated);
return total_isolated;
}
@@ -613,9 +627,9 @@ next_pageblock:
trace_mm_compaction_isolate_migratepages(nr_scanned, nr_isolated);
- count_vm_events(COMPACTMIGRATE_SCANNED, nr_scanned);
+ count_compact_events(COMPACTMIGRATE_SCANNED, nr_scanned);
if (nr_isolated)
- count_vm_events(COMPACTISOLATED, nr_isolated);
+ count_compact_events(COMPACTISOLATED, nr_isolated);
return low_pfn;
}
@@ -1110,7 +1124,7 @@ unsigned long try_to_compact_pages(struct zonelist *zonelist,
if (!order || !may_enter_fs || !may_perform_io)
return rc;
- count_vm_event(COMPACTSTALL);
+ count_compact_event(COMPACTSTALL);
#ifdef CONFIG_CMA
if (allocflags_to_migratetype(gfp_mask) == MIGRATE_MOVABLE)