From 24a9ee0fa3d40415765d2d9f6064930d72ad8b5a Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Fri, 25 Jul 2014 17:46:10 -0700 Subject: [PATCH] f2fs: add tracepoint for f2fs_issue_flush This patch adds a tracepoint for f2fs_issue_flush. Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.c | 3 +++ include/trace/events/f2fs.h | 24 ++++++++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index e016b97be2ac..5a53a0ac6e4f 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -239,6 +239,9 @@ int f2fs_issue_flush(struct f2fs_sb_info *sbi) struct flush_cmd_control *fcc = SM_I(sbi)->cmd_control_info; struct flush_cmd cmd; + trace_f2fs_issue_flush(sbi->sb, test_opt(sbi, NOBARRIER), + test_opt(sbi, FLUSH_MERGE)); + if (test_opt(sbi, NOBARRIER)) return 0; diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index b983990b4a9f..7d2e70e75f16 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -926,6 +926,30 @@ TRACE_EVENT(f2fs_issue_discard, (unsigned long long)__entry->blkstart, (unsigned long long)__entry->blklen) ); + +TRACE_EVENT(f2fs_issue_flush, + + TP_PROTO(struct super_block *sb, bool nobarrier, bool flush_merge), + + TP_ARGS(sb, nobarrier, flush_merge), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(bool, nobarrier) + __field(bool, flush_merge) + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->nobarrier = nobarrier; + __entry->flush_merge = flush_merge; + ), + + TP_printk("dev = (%d,%d), %s %s", + show_dev(__entry), + __entry->nobarrier ? "skip (nobarrier)" : "issue", + __entry->flush_merge ? " with flush_merge" : "") +); #endif /* _TRACE_F2FS_H */ /* This part must be outside protection */ -- 2.20.1