Commit 2e2e0d67 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: add fadvise tracepoint 



This adds a tracepoint in the fadvise call path.

Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 27bf6a63

fs/f2fs/file.c

+2 −0
Original line number Diff line number Diff line
@@ -5288,6 +5288,8 @@ static int f2fs_file_fadvise(struct file *filp, loff_t offset, loff_t len, 
	struct inode *inode = file_inode(filp);

	int err;



	trace_f2fs_fadvise(inode, offset, len, advice);



	if (advice == POSIX_FADV_SEQUENTIAL) {

		if (S_ISFIFO(inode->i_mode))

			return -ESPIPE;

include/trace/events/f2fs.h

+32 −0
Original line number Diff line number Diff line
@@ -586,6 +586,38 @@ TRACE_EVENT(f2fs_file_write_iter, 
		__entry->ret)

);



TRACE_EVENT(f2fs_fadvise,



	TP_PROTO(struct inode *inode, loff_t offset, loff_t len, int advice),



	TP_ARGS(inode, offset, len, advice),



	TP_STRUCT__entry(

		__field(dev_t,	dev)

		__field(ino_t,	ino)

		__field(loff_t, size)

		__field(loff_t,	offset)

		__field(loff_t,	len)

		__field(int,	advice)

	),



	TP_fast_assign(

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

		__entry->ino	= inode->i_ino;

		__entry->size	= i_size_read(inode);

		__entry->offset	= offset;

		__entry->len	= len;

		__entry->advice	= advice;

	),



	TP_printk("dev = (%d,%d), ino = %lu, i_size = %lld offset:%llu, len:%llu, advise:%d",

		show_dev_ino(__entry),

		(unsigned long long)__entry->size,

		__entry->offset,

		__entry->len,

		__entry->advice)

);



TRACE_EVENT(f2fs_map_blocks,

	TP_PROTO(struct inode *inode, struct f2fs_map_blocks *map, int flag,

		 int ret),