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f2fs: add tracepoint for f2fs_issue_flush

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This patch adds a tracepoint for f2fs_issue_flush.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2014-07-25 17:46:10 -07:00
parent cf2271e781
commit 24a9ee0fa3
2 changed files with 27 additions and 0 deletions
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3
fs/f2fs/segment.c
View File

@ -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;

24
include/trace/events/f2fs.h
View File

@ -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 */