Commit c01e2853 authored by Namjae Jeon's avatar Namjae Jeon Committed by Jaegeuk Kim
Browse files

f2fs: add tracepoints to debug the block allocation 



Add tracepoints to debug the block allocation & fallocate.

Signed-off-by: default avatarNamjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: default avatarPankaj Kumar <pankaj.km@samsung.com>
Acked-by: default avatarSteven Rostedt <rostedt@goodmis.org>
[Jaegeuk: enhance information]
Signed-off-by: default avatarJaegeuk Kim <jaegeuk.kim@samsung.com>
parent 8e46b3ed

fs/f2fs/data.c

+2 −0
Original line number Diff line number Diff line
@@ -55,6 +55,8 @@ int reserve_new_block(struct dnode_of_data *dn) 
	if (!inc_valid_block_count(sbi, dn->inode, 1))

		return -ENOSPC;



	trace_f2fs_reserve_new_block(dn->inode, dn->nid, dn->ofs_in_node);



	__set_data_blkaddr(dn, NEW_ADDR);

	dn->data_blkaddr = NEW_ADDR;

	sync_inode_page(dn);

fs/f2fs/file.c

+1 −0
Original line number Diff line number Diff line
@@ -546,6 +546,7 @@ static long f2fs_fallocate(struct file *file, int mode, 
		inode->i_mtime = inode->i_ctime = CURRENT_TIME;

		mark_inode_dirty(inode);

	}

	trace_f2fs_fallocate(inode, mode, offset, len, ret);

	return ret;

}

include/trace/events/f2fs.h

+64 −0
Original line number Diff line number Diff line
@@ -514,6 +514,70 @@ TRACE_EVENT(f2fs_get_victim, 
		__entry->free)

);



TRACE_EVENT(f2fs_fallocate,



	TP_PROTO(struct inode *inode, int mode,

				loff_t offset, loff_t len, int ret),



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



	TP_STRUCT__entry(

		__field(dev_t,	dev)

		__field(ino_t,	ino)

		__field(int,	mode)

		__field(loff_t,	offset)

		__field(loff_t,	len)

		__field(loff_t, size)

		__field(blkcnt_t, blocks)

		__field(int,	ret)

	),



	TP_fast_assign(

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

		__entry->ino	= inode->i_ino;

		__entry->mode	= mode;

		__entry->offset	= offset;

		__entry->len	= len;

		__entry->size	= inode->i_size;

		__entry->blocks = inode->i_blocks;

		__entry->ret	= ret;

	),



	TP_printk("dev = (%d,%d), ino = %lu, mode = %x, offset = %lld, "

		"len = %lld,  i_size = %lld, i_blocks = %llu, ret = %d",

		show_dev_ino(__entry),

		__entry->mode,

		(unsigned long long)__entry->offset,

		(unsigned long long)__entry->len,

		(unsigned long long)__entry->size,

		(unsigned long long)__entry->blocks,

		__entry->ret)

);



TRACE_EVENT(f2fs_reserve_new_block,



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



	TP_ARGS(inode, nid, ofs_in_node),



	TP_STRUCT__entry(

		__field(dev_t,	dev)

		__field(nid_t, nid)

		__field(unsigned int, ofs_in_node)

	),



	TP_fast_assign(

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

		__entry->nid	= nid;

		__entry->ofs_in_node = ofs_in_node;

	),



	TP_printk("dev = (%d,%d), nid = %u, ofs_in_node = %u",

		show_dev(__entry),

		(unsigned int)__entry->nid,

		__entry->ofs_in_node)

);



#endif /* _TRACE_F2FS_H */



 /* This part must be outside protection */