From: Chao Yu <yuch...@huawei.com>
This patch adds tracepoint to trace f2fs_remove_discard.
Signed-off-by: Chao Yu <yuch...@huawei.com>
---
v2:
- rebase on last codes of Jaegeuk's dev-test branch.
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 ba433828c170..4a108321233d 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -822,6 +822,8 @@ 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 5d216f7fb05a..0e7a31694ff5 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
