Commit 70407fad authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: add tracepoint for f2fs_direct_IO 



This patch adds a tracepoint for f2fs_direct_IO.

Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent b3582c68

fs/f2fs/data.c

+5 −0
Original line number Diff line number Diff line
@@ -1086,9 +1086,14 @@ static ssize_t f2fs_direct_IO(int rw, struct kiocb *iocb, 
	/* clear fsync mark to recover these blocks */

	fsync_mark_clear(F2FS_SB(inode->i_sb), inode->i_ino);



	trace_f2fs_direct_IO_enter(inode, offset, count, rw);



	err = blockdev_direct_IO(rw, iocb, inode, iter, offset, get_data_block);

	if (err < 0 && (rw & WRITE))

		f2fs_write_failed(mapping, offset + count);



	trace_f2fs_direct_IO_exit(inode, offset, count, rw, err);



	return err;

}

include/trace/events/f2fs.h

+63 −0
Original line number Diff line number Diff line
@@ -587,6 +587,69 @@ TRACE_EVENT(f2fs_fallocate, 
		__entry->ret)

);



TRACE_EVENT(f2fs_direct_IO_enter,



	TP_PROTO(struct inode *inode, loff_t offset, unsigned long len, int rw),



	TP_ARGS(inode, offset, len, rw),



	TP_STRUCT__entry(

		__field(dev_t,	dev)

		__field(ino_t,	ino)

		__field(loff_t,	pos)

		__field(unsigned long,	len)

		__field(int,	rw)

	),



	TP_fast_assign(

		__entry->dev	= inode->i_sb->s_dev;

		__entry->ino	= inode->i_ino;

		__entry->pos	= offset;

		__entry->len	= len;

		__entry->rw	= rw;

	),



	TP_printk("dev = (%d,%d), ino = %lu pos = %lld len = %lu rw = %d",

		show_dev_ino(__entry),

		__entry->pos,

		__entry->len,

		__entry->rw)

);



TRACE_EVENT(f2fs_direct_IO_exit,



	TP_PROTO(struct inode *inode, loff_t offset, unsigned long len,

		 int rw, int ret),



	TP_ARGS(inode, offset, len, rw, ret),



	TP_STRUCT__entry(

		__field(dev_t,	dev)

		__field(ino_t,	ino)

		__field(loff_t,	pos)

		__field(unsigned long,	len)

		__field(int,	rw)

		__field(int,	ret)

	),



	TP_fast_assign(

		__entry->dev	= inode->i_sb->s_dev;

		__entry->ino	= inode->i_ino;

		__entry->pos	= offset;

		__entry->len	= len;

		__entry->rw	= rw;

		__entry->ret	= ret;

	),



	TP_printk("dev = (%d,%d), ino = %lu pos = %lld len = %lu "

		"rw = %d ret = %d",

		show_dev_ino(__entry),

		__entry->pos,

		__entry->len,

		__entry->rw,

		__entry->ret)

);



TRACE_EVENT(f2fs_reserve_new_block,



	TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs_in_node),