f2fs: support to trace f2fs_fiemap()

to show f2fs_fiemap()'s result as below:

f2fs_fiemap: dev = (251,0), ino = 7, lblock:0, pblock:1625292800, len:2097152, flags:0, ret:0

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/inline.c

@@ -12,6 +12,7 @@
 
 #include "f2fs.h"
 #include "node.h"
+#include <trace/events/f2fs.h>
 
 bool f2fs_may_inline_data(struct inode *inode)
 {
@@ -776,6 +777,7 @@ int f2fs_inline_data_fiemap(struct inode *inode,
 	byteaddr += (char *)inline_data_addr(inode, ipage) -
 					(char *)F2FS_INODE(ipage);
 	err = fiemap_fill_next_extent(fieinfo, start, byteaddr, ilen, flags);
+	trace_f2fs_fiemap(inode, start, byteaddr, ilen, flags, err);
 out:
 	f2fs_put_page(ipage, 1);
 	return err;