This patch adds a tracepoint for f2fs_issue_flush.
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
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 e016b97..5a53a0a 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 b983990..7d2e70e 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 */
--
1.8.5.2 (Apple Git-48)
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