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-rw-r--r--mm/vmscan.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c99bc418c4c..3d006d91a52 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -919,6 +919,9 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
unsigned long *scanned, int order, int mode, int file)
{
unsigned long nr_taken = 0;
+ unsigned long nr_lumpy_taken = 0;
+ unsigned long nr_lumpy_dirty = 0;
+ unsigned long nr_lumpy_failed = 0;
unsigned long scan;
for (scan = 0; scan < nr_to_scan && !list_empty(src); scan++) {
@@ -996,12 +999,25 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
list_move(&cursor_page->lru, dst);
mem_cgroup_del_lru(cursor_page);
nr_taken++;
+ nr_lumpy_taken++;
+ if (PageDirty(cursor_page))
+ nr_lumpy_dirty++;
scan++;
+ } else {
+ if (mode == ISOLATE_BOTH &&
+ page_count(cursor_page))
+ nr_lumpy_failed++;
}
}
}
*scanned = scan;
+
+ trace_mm_vmscan_lru_isolate(order,
+ nr_to_scan, scan,
+ nr_taken,
+ nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed,
+ mode);
return nr_taken;
}