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vmscan/trace: Add 'file' info to trace_mm_vmscan_lru_isolate()

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In trace_mm_vmscan_lru_isolate(), we don't output 'file' information to
the trace event and it is a bit inconvenient for the user to get the
real information(like pasted below).  mm_vmscan_lru_isolate:
isolate_mode=2 order=0 nr_requested=32 nr_scanned=32 nr_taken=32
contig_taken=0 contig_dirty=0 contig_failed=0

'active' can be obtained by analyzing mode(Thanks go to Minchan and
Mel), So this patch adds 'file' to the trace event and it now looks
like: mm_vmscan_lru_isolate: isolate_mode=2 order=0 nr_requested=32
nr_scanned=32 nr_taken=32 contig_taken=0 contig_dirty=0 contig_failed=0
file=0

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tao Ma
2012-01-12 17:19:20 -08:00
committed by Linus Torvalds
parent 45676885b7
commit ea4d349ffa
2 changed files with 15 additions and 9 deletions
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2
mm/vmscan.c
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@@ -1234,7 +1234,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
nr_to_scan, scan,
nr_taken,
nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed,
mode);
mode, file);
return nr_taken;
}