f2fs: add tracepoints to debug the block allocation

Add tracepoints to debug the block allocation & fallocate.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
[Jaegeuk: enhance information]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 8e8b14d714fc..1220b5c2ea21 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -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);