This patch adds a tracepoint for f2fs_write_end to trace write op of user.
Signed-off-by: Chao Yu <[email protected]>
---
fs/f2fs/data.c | 2 ++
include/trace/events/f2fs.h | 30 ++++++++++++++++++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index cde0d69..ea58fb6 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -989,6 +989,8 @@ static int f2fs_write_end(struct file *file,
{
struct inode *inode = page->mapping->host;
+ trace_f2fs_write_end(inode, pos, len, copied);
+
SetPageUptodate(page);
set_page_dirty(page);
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 1e9375a..483804b 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -689,6 +689,36 @@ TRACE_EVENT(f2fs_write_begin,
__entry->flags)
);
+TRACE_EVENT(f2fs_write_end,
+
+ TP_PROTO(struct inode *inode, loff_t pos, unsigned int len,
+ unsigned int copied),
+
+ TP_ARGS(inode, pos, len, copied),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(loff_t, pos)
+ __field(unsigned int, len)
+ __field(unsigned int, copied)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->pos = pos;
+ __entry->len = len;
+ __entry->copied = copied;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, pos = %llu, len = %u, copied = %u",
+ show_dev_ino(__entry),
+ (unsigned long long)__entry->pos,
+ __entry->len,
+ __entry->copied)
+);
+
DECLARE_EVENT_CLASS(f2fs__page,
TP_PROTO(struct page *page, int type),
--
1.7.9.5
--
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