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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>
This commit is contained in:
Chao Yu 2017-04-15 14:09:38 +08:00 committed by Jaegeuk Kim
parent ba48a33ef6
commit 0243a5f9da
2 changed files with 18 additions and 2 deletions
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4
fs/f2fs/segment.c
View File

@ -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);

16
include/trace/events/f2fs.h
View File

@ -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),