f2fs: trace __submit_discard_cmd
Add an even class f2fs_discard for introducing f2fs_queue_discard, then
use f2fs_{queue,issue}_discard to trace __{queue,submit}_discard_cmd.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index f026f70..8da49a1 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -763,6 +763,8 @@ static void __submit_discard_cmd(struct f2fs_sb_info *sbi,
if (dc->state != D_PREP)
return;
+ trace_f2fs_issue_discard(dc->bdev, dc->start, dc->len);
+
dc->error = __blkdev_issue_discard(dc->bdev,
SECTOR_FROM_BLOCK(dc->start),
SECTOR_FROM_BLOCK(dc->len),
@@ -942,7 +944,7 @@ static int __queue_discard_cmd(struct f2fs_sb_info *sbi,
{
block_t lblkstart = blkstart;
- trace_f2fs_issue_discard(bdev, blkstart, blklen);
+ trace_f2fs_queue_discard(bdev, blkstart, blklen);
if (sbi->s_ndevs) {
int devi = f2fs_target_device_index(sbi, blkstart);
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 1714c75..2e8f68f 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -1129,7 +1129,7 @@ TRACE_EVENT(f2fs_write_checkpoint,
__entry->msg)
);
-TRACE_EVENT(f2fs_issue_discard,
+DECLARE_EVENT_CLASS(f2fs_discard,
TP_PROTO(struct block_device *dev, block_t blkstart, block_t blklen),
@@ -1153,6 +1153,20 @@ TRACE_EVENT(f2fs_issue_discard,
(unsigned long long)__entry->blklen)
);
+DEFINE_EVENT(f2fs_discard, f2fs_queue_discard,
+
+ TP_PROTO(struct block_device *dev, block_t blkstart, block_t blklen),
+
+ TP_ARGS(dev, blkstart, blklen)
+);
+
+DEFINE_EVENT(f2fs_discard, f2fs_issue_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),
