mpage_writepage  2698 fs/buffer.c    	ret = mpage_writepage(page, get_block, wbc);
mpage_writepage   141 fs/gfs2/ops_address.c 	ret = mpage_writepage(page, gfs2_get_block_noalloc, wbc);
mpage_writepage    31 include/linux/mpage.h int mpage_writepage(struct page *page, get_block_t *get_block,