77 	struct ceph_snap_context *snapc;  in ceph_set_page_dirty()  local
101 		snapc = ceph_get_snap_context(capsnap->context);  in ceph_set_page_dirty()
105 		snapc = ceph_get_snap_context(ci->i_head_snapc);  in ceph_set_page_dirty()
116 	     snapc, snapc->seq, snapc->num_snaps);  in ceph_set_page_dirty()
124 	page->private = (unsigned long)snapc;  in ceph_set_page_dirty()
144 	struct ceph_snap_context *snapc = page_snap_context(page);  in ceph_invalidatepage()  local
166 	ceph_put_wrbuffer_cap_refs(ci, 1, snapc);  in ceph_invalidatepage()
167 	ceph_put_snap_context(snapc);  in ceph_invalidatepage()
490 	struct ceph_snap_context *snapc = NULL;  in get_oldest_context()  local
501 		if (snapc && capsnap->context != page_snapc)  in get_oldest_context()
517 		if (snapc)  in get_oldest_context()
520 		snapc = ceph_get_snap_context(capsnap->context);  in get_oldest_context()
522 		    page_snapc == snapc ||  in get_oldest_context()
523 		    page_snapc->seq > snapc->seq)  in get_oldest_context()
526 	if (!snapc && ci->i_wrbuffer_ref_head) {  in get_oldest_context()
527 		snapc = ceph_get_snap_context(ci->i_head_snapc);  in get_oldest_context()
529 		     snapc, ci->i_wrbuffer_ref_head);  in get_oldest_context()
539 	return snapc;  in get_oldest_context()
546 	struct ceph_snap_context *snapc = page_snap_context(page);  in get_writepages_data_length()  local
550 	if (snapc != ci->i_head_snapc) {  in get_writepages_data_length()
554 			if (capsnap->context == snapc) {  in get_writepages_data_length()
580 	struct ceph_snap_context *snapc, *oldest;  in writepage_nounlock()  local
592 	snapc = page_snap_context(page);  in writepage_nounlock()
593 	if (!snapc) {  in writepage_nounlock()
597 	oldest = get_oldest_context(inode, &ceph_wbc, snapc);  in writepage_nounlock()
598 	if (snapc->seq > oldest->seq) {  in writepage_nounlock()
600 		     inode, page, snapc);  in writepage_nounlock()
620 	     inode, page, page->index, page_off, len, snapc, snapc->seq);  in writepage_nounlock()
628 				   &ci->i_layout, snapc, page_off, len,  in writepage_nounlock()
655 	ceph_put_wrbuffer_cap_refs(ci, 1, snapc);  in writepage_nounlock()
656 	ceph_put_snap_context(snapc);  /* page's reference */  in writepage_nounlock()
714 	struct ceph_snap_context *snapc = req->r_snapc;  in writepages_finish()  local
775 	ceph_put_wrbuffer_cap_refs(ci, total_pages, snapc);  in writepages_finish()
797 	struct ceph_snap_context *snapc = NULL, *last_snapc = NULL, *pgsnapc;  in ceph_writepages_start()  local
829 	snapc = get_oldest_context(inode, &ceph_wbc, NULL);  in ceph_writepages_start()
830 	if (!snapc) {  in ceph_writepages_start()
837 	     snapc, snapc->seq, snapc->num_snaps);  in ceph_writepages_start()
840 	if (ceph_wbc.head_snapc && snapc != last_snapc) {  in ceph_writepages_start()
866 	last_snapc = snapc;  in ceph_writepages_start()
903 			if (pgsnapc != snapc) {  in ceph_writepages_start()
905 				     pgsnapc, pgsnapc->seq, snapc, snapc->seq);  in ceph_writepages_start()
1042 					snapc, ceph_wbc.truncate_seq,  in ceph_writepages_start()
1052 						snapc, ceph_wbc.truncate_seq,  in ceph_writepages_start()
1177 					if (page_snap_context(page) != snapc)  in ceph_writepages_start()
1207 					   struct ceph_snap_context *snapc)  in context_is_writeable_or_written()  argument
1210 	int ret = !oldest || snapc->seq <= oldest->seq;  in context_is_writeable_or_written()
1236 	struct ceph_snap_context *snapc, *oldest;  in ceph_update_writeable_page()  local
1248 	snapc = page_snap_context(page);  in ceph_update_writeable_page()
1249 	if (snapc && snapc != ci->i_head_snapc) {  in ceph_update_writeable_page()
1255 		if (snapc->seq > oldest->seq) {  in ceph_update_writeable_page()
1258 			     page, snapc);  in ceph_update_writeable_page()
1263 			snapc = ceph_get_snap_context(snapc);  in ceph_update_writeable_page()
1267 			       context_is_writeable_or_written(inode, snapc));  in ceph_update_writeable_page()
1268 			ceph_put_snap_context(snapc);  in ceph_update_writeable_page()
1277 		     page, snapc);  in ceph_update_writeable_page()