Commit bd984c03 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: show more DIO information in tracepoint 



This prints more information of DIO in tracepoint.

Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent a1e09b03

fs/f2fs/file.c

+2 −2
Original line number Diff line number Diff line
@@ -4284,7 +4284,7 @@ static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to) 
	if (count == 0)

		return 0; /* skip atime update */



	trace_f2fs_direct_IO_enter(inode, pos, count, READ);

	trace_f2fs_direct_IO_enter(inode, iocb, count, READ);



	if (iocb->ki_flags & IOCB_NOWAIT) {

		if (!down_read_trylock(&fi->i_gc_rwsem[READ])) {
@@ -4483,7 +4483,7 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from, 
	struct iomap_dio *dio;

	ssize_t ret;



	trace_f2fs_direct_IO_enter(inode, pos, count, WRITE);

	trace_f2fs_direct_IO_enter(inode, iocb, count, WRITE);



	if (iocb->ki_flags & IOCB_NOWAIT) {

		/* f2fs_convert_inline_inode() and block allocation can block */

include/trace/events/f2fs.h

+9 −6
Original line number Diff line number Diff line
@@ -936,14 +936,14 @@ TRACE_EVENT(f2fs_fallocate, 


TRACE_EVENT(f2fs_direct_IO_enter,



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

	TP_PROTO(struct inode *inode, struct kiocb *iocb, long len, int rw),



	TP_ARGS(inode, offset, len, rw),

	TP_ARGS(inode, iocb, len, rw),



	TP_STRUCT__entry(

		__field(dev_t,	dev)

		__field(ino_t,	ino)

		__field(loff_t,	pos)

		__field(struct kiocb *,	iocb)

		__field(unsigned long,	len)

		__field(int,	rw)

	),
@@ -951,15 +951,18 @@ TRACE_EVENT(f2fs_direct_IO_enter, 
	TP_fast_assign(

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

		__entry->ino	= inode->i_ino;

		__entry->pos	= offset;

		__entry->iocb	= iocb;

		__entry->len	= len;

		__entry->rw	= rw;

	),



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

	TP_printk("dev = (%d,%d), ino = %lu pos = %lld len = %lu ki_flags = %x ki_hint = %x ki_ioprio = %x rw = %d",

		show_dev_ino(__entry),

		__entry->pos,

		__entry->iocb->ki_pos,

		__entry->len,

		__entry->iocb->ki_flags,

		__entry->iocb->ki_hint,

		__entry->iocb->ki_ioprio,

		__entry->rw)

);