Hi,
Again, this tracepoint alos can be integrated with write_bios like this.
>From e0360910b24624e40d92eb2e1949914339b83881 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2...@samsung.com>
Date: Sun, 24 Nov 2013 12:36:42 +0900
Subject: [PATCH] f2fs: adds a tracepoint for f2fs_submit_read_bio
This patch adds a tracepoint for f2fs_submit_read_bio.
Signed-off-by: Chao Yu <chao2...@samsung.com>
[Jaegeuk Kim: integrate tracepoints of f2fs_submit_read(_write)_bio]
Signed-off-by: Jaegeuk Kim <jaegeuk....@samsung.com>
---
fs/f2fs/data.c | 2 ++
fs/f2fs/segment.c | 5 +++--
include/trace/events/f2fs.h | 49
+++++++++++++++++++++++++++++----------------
3 files changed, 37 insertions(+), 19 deletions(-)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index cdb342e..7117220 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -421,6 +421,8 @@ void f2fs_submit_read_bio(struct f2fs_sb_info *sbi,
int rw)
if (!io->bio)
return;
+ trace_f2fs_submit_read_bio(sbi->sb, rw, META, io->bio);
+
mutex_lock(&io->io_mutex);
if (io->bio) {
submit_bio(rw, io->bio);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 264a5ff..3aad374 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -846,6 +846,9 @@ static void do_submit_bio(struct f2fs_sb_info *sbi,
if (type >= META_FLUSH)
rw = WRITE_FLUSH_FUA;
+
+ trace_f2fs_submit_write_bio(sbi->sb, rw, btype, io->bio);
+
if (btype == META)
rw |= REQ_META;
@@ -853,8 +856,6 @@ static void do_submit_bio(struct f2fs_sb_info *sbi,
p->sbi = sbi;
io->bio->bi_end_io = f2fs_end_io_write;
- trace_f2fs_do_submit_bio(sbi->sb, btype, sync, io->bio);
-
if (type == META_FLUSH) {
DECLARE_COMPLETION_ONSTACK(wait);
p->is_sync = true;
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 73cc5f0..1f59f5d 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -18,13 +18,14 @@
#define show_bio_type(type) \
__print_symbolic(type, \
- { READ, "READ" }, \
- { READA, "READAHEAD" }, \
- { READ_SYNC, "READ_SYNC" }, \
- { WRITE, "WRITE" }, \
- { WRITE_SYNC, "WRITE_SYNC" }, \
- { WRITE_FLUSH, "WRITE_FLUSH" }, \
- { WRITE_FUA, "WRITE_FUA" })
+ { READ, "READ" }, \
+ { READA, "READAHEAD" }, \
+ { READ_SYNC, "READ_SYNC" }, \
+ { WRITE, "WRITE" }, \
+ { WRITE_SYNC, "WRITE_SYNC" }, \
+ { WRITE_FLUSH, "WRITE_FLUSH" }, \
+ { WRITE_FUA, "WRITE_FUA" }, \
+ { WRITE_FLUSH_FUA, "WRITE_FLUSH_FUA" })
#define show_data_type(type) \
__print_symbolic(type, \
@@ -598,36 +599,50 @@ TRACE_EVENT(f2fs_reserve_new_block,
__entry->ofs_in_node)
);
-TRACE_EVENT(f2fs_do_submit_bio,
+DECLARE_EVENT_CLASS(f2fs__submit_bio,
- TP_PROTO(struct super_block *sb, int btype, bool sync, struct bio
*bio),
+ TP_PROTO(struct super_block *sb, int rw, int type, struct bio *bio),
- TP_ARGS(sb, btype, sync, bio),
+ TP_ARGS(sb, rw, type, bio),
TP_STRUCT__entry(
__field(dev_t, dev)
- __field(int, btype)
- __field(bool, sync)
+ __field(int, rw)
+ __field(int, type)
__field(sector_t, sector)
__field(unsigned int, size)
),
TP_fast_assign(
__entry->dev = sb->s_dev;
- __entry->btype = btype;
- __entry->sync = sync;
+ __entry->rw = rw;
+ __entry->type = type;
__entry->sector = bio->bi_sector;
__entry->size = bio->bi_size;
),
- TP_printk("dev = (%d,%d), type = %s, io = %s, sector = %lld, size = %
u",
+ TP_printk("dev = (%d,%d), %s, %s, sector = %lld, size = %u",
show_dev(__entry),
- show_block_type(__entry->btype),
- __entry->sync ? "sync" : "no sync",
+ show_bio_type(__entry->rw),
+ show_block_type(__entry->type),
(unsigned long long)__entry->sector,
__entry->size)
);
+DEFINE_EVENT(f2fs__submit_bio, f2fs_submit_write_bio,
+
+ TP_PROTO(struct super_block *sb, int rw, int type, struct bio *bio),
+
+ TP_ARGS(sb, rw, type, bio)
+);
+
+DEFINE_EVENT(f2fs__submit_bio, f2fs_submit_read_bio,
+
+ TP_PROTO(struct super_block *sb, int rw, int type, struct bio *bio),
+
+ TP_ARGS(sb, rw, type, bio)
+);
+
DECLARE_EVENT_CLASS(f2fs__page,
TP_PROTO(struct page *page, int type),
--
1.8.4.474.g128a96c
--
Jaegeuk Kim
Samsung
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