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| author |   Yafang Shao <laoar.shao@gmail.com> | 2019-05-13 17:19:14 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:48 -0700 |
| commit | 3481c37ffa1de58ef140d0fe9eabf56305e74666 (patch) | |
| tree | 7af04951d500ce2b896425f65b04f84ea395b270 /include | |
| parent | mm: page_mkclean vs MADV_DONTNEED race (diff) | |
| download | linux-dev-3481c37ffa1de58ef140d0fe9eabf56305e74666.tar.xz linux-dev-3481c37ffa1de58ef140d0fe9eabf56305e74666.zip | |
mm/vmscan: drop may_writepage and classzone_idx from direct reclaim begin template
There are three tracepoints using this template, which are
mm_vmscan_direct_reclaim_begin,
mm_vmscan_memcg_reclaim_begin,
mm_vmscan_memcg_softlimit_reclaim_begin.
Regarding mm_vmscan_direct_reclaim_begin,
sc.may_writepage is !laptop_mode, that's a static setting, and
reclaim_idx is derived from gfp_mask which is already show in this
tracepoint.
Regarding mm_vmscan_memcg_reclaim_begin,
may_writepage is !laptop_mode too, and reclaim_idx is (MAX_NR_ZONES-1),
which are both static value.
mm_vmscan_memcg_softlimit_reclaim_begin is the same with
mm_vmscan_memcg_reclaim_begin.
So we can drop them all.
Link: http://lkml.kernel.org/r/1553736322-32235-1-git-send-email-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/trace/events/vmscan.h | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h index b8b9d42944f9..0aa882a4e870 100644 --- a/include/trace/events/vmscan.h +++ b/include/trace/events/vmscan.h @@ -106,51 +106,45 @@ TRACE_EVENT(mm_vmscan_wakeup_kswapd, DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_begin_template, - TP_PROTO(int order, int may_writepage, gfp_t gfp_flags, int classzone_idx), + TP_PROTO(int order, gfp_t gfp_flags), - TP_ARGS(order, may_writepage, gfp_flags, classzone_idx), + TP_ARGS(order, gfp_flags), TP_STRUCT__entry( __field( int, order ) - __field( int, may_writepage ) __field( gfp_t, gfp_flags ) - __field( int, classzone_idx ) ), TP_fast_assign( __entry->order = order; - __entry->may_writepage = may_writepage; __entry->gfp_flags = gfp_flags; - __entry->classzone_idx = classzone_idx; ), - TP_printk("order=%d may_writepage=%d gfp_flags=%s classzone_idx=%d", + TP_printk("order=%d gfp_flags=%s", __entry->order, - __entry->may_writepage, - show_gfp_flags(__entry->gfp_flags), - __entry->classzone_idx) + show_gfp_flags(__entry->gfp_flags)) ); DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_begin, - TP_PROTO(int order, int may_writepage, gfp_t gfp_flags, int classzone_idx), + TP_PROTO(int order, gfp_t gfp_flags), - TP_ARGS(order, may_writepage, gfp_flags, classzone_idx) + TP_ARGS(order, gfp_flags) ); #ifdef CONFIG_MEMCG DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_reclaim_begin, - TP_PROTO(int order, int may_writepage, gfp_t gfp_flags, int classzone_idx), + TP_PROTO(int order, gfp_t gfp_flags), - TP_ARGS(order, may_writepage, gfp_flags, classzone_idx) + TP_ARGS(order, gfp_flags) ); DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_softlimit_reclaim_begin, - TP_PROTO(int order, int may_writepage, gfp_t gfp_flags, int classzone_idx), + TP_PROTO(int order, gfp_t gfp_flags), - TP_ARGS(order, may_writepage, gfp_flags, classzone_idx) + TP_ARGS(order, gfp_flags) ); #endif /* CONFIG_MEMCG */ |