ext4_writepage   3926 fs/ext4/inode.c 	.writepage		= ext4_writepage,
ext4_writepage   3943 fs/ext4/inode.c 	.writepage		= ext4_writepage,
ext4_writepage   3959 fs/ext4/inode.c 	.writepage		= ext4_writepage,
ext4_writepage    548 include/trace/events/ext4.h DEFINE_EVENT(ext4__page_op, ext4_writepage,