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| author |   KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2010-08-09 17:19:55 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-09 20:45:03 -0700 |
| commit | cf4dcc3e9b374e1b61a7c22faf868707ce78d6a9 (patch) | |
| tree | eb46339e98467b74a089d596b63d79441408caec /include/trace | |
| parent | vmscan: shrink_slab() requires the number of lru_pages, not the page order (diff) | |
| download | linux-dev-cf4dcc3e9b374e1b61a7c22faf868707ce78d6a9.tar.xz linux-dev-cf4dcc3e9b374e1b61a7c22faf868707ce78d6a9.zip | |
vmscan: convert direct reclaim tracepoint to DEFINE_TRACE
Mel Gorman recently added some vmscan tracepoints. Unfortunately they are
covered only global reclaim. But we want to trace memcg reclaim too.
Thus, this patch convert them to DEFINE_TRACE macro. it help to reuse
tracepoint definition for other similar usage (i.e. memcg). This patch
have no functionally change.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/vmscan.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h index 69789dc72100..f9f2747bc1c1 100644 --- a/include/trace/events/vmscan.h +++ b/include/trace/events/vmscan.h @@ -86,7 +86,7 @@ TRACE_EVENT(mm_vmscan_wakeup_kswapd, __entry->order) ); -TRACE_EVENT(mm_vmscan_direct_reclaim_begin, +DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_begin_template, TP_PROTO(int order, int may_writepage, gfp_t gfp_flags), @@ -110,7 +110,15 @@ TRACE_EVENT(mm_vmscan_direct_reclaim_begin, show_gfp_flags(__entry->gfp_flags)) ); -TRACE_EVENT(mm_vmscan_direct_reclaim_end, +DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_begin, + + TP_PROTO(int order, int may_writepage, gfp_t gfp_flags), + + TP_ARGS(order, may_writepage, gfp_flags) +); + + +DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_end_template, TP_PROTO(unsigned long nr_reclaimed), @@ -127,6 +135,13 @@ TRACE_EVENT(mm_vmscan_direct_reclaim_end, TP_printk("nr_reclaimed=%lu", __entry->nr_reclaimed) ); +DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_direct_reclaim_end, + + TP_PROTO(unsigned long nr_reclaimed), + + TP_ARGS(nr_reclaimed) +); + TRACE_EVENT(mm_vmscan_lru_isolate, TP_PROTO(int order, |