[PATCH 5/6] f2fs: trace f2fs_remove_discard

[Chao Yu]

From: Chao Yu <yuch...@huawei.com>

This patch adds tracepoint to trace f2fs_remove_discard.

Signed-off-by: Chao Yu <yuch...@huawei.com>
---
 fs/f2fs/segment.c           | 2 ++
 include/trace/events/f2fs.h | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 412ac3a68be3..85f909419b69 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -794,6 +794,8 @@ static void __remove_discard_cmd(struct f2fs_sb_info *sbi,
 {
        struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
 
+       trace_f2fs_remove_discard(dc->bdev, dc->start, dc->len);
+
        f2fs_bug_on(sbi, dc->ref);
 
        if (dc->error == -EOPNOTSUPP)
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 8955e75dd48e..407713ef5981 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -1286,6 +1286,13 @@ DEFINE_EVENT(f2fs_discard, f2fs_issue_discard,
        TP_ARGS(dev, blkstart, blklen)
 );
 
+DEFINE_EVENT(f2fs_discard, f2fs_remove_discard,
+
+       TP_PROTO(struct block_device *dev, block_t blkstart, block_t blklen),
+
+       TP_ARGS(dev, blkstart, blklen)
+);
+
 TRACE_EVENT(f2fs_issue_reset_zone,
 
        TP_PROTO(struct block_device *dev, block_t blkstart),
-- 
2.14.1.145.gb3622a4ee