78 	struct ceph_snap_context *snapc;  in ceph_set_page_dirty()  local
102 		snapc = ceph_get_snap_context(capsnap->context);  in ceph_set_page_dirty()
106 		snapc = ceph_get_snap_context(ci->i_head_snapc);  in ceph_set_page_dirty()
117 	     snapc, snapc->seq, snapc->num_snaps);  in ceph_set_page_dirty()
125 	page->private = (unsigned long)snapc;  in ceph_set_page_dirty()
145 	struct ceph_snap_context *snapc = page_snap_context(page);  in ceph_invalidatepage()  local
167 	ceph_put_wrbuffer_cap_refs(ci, 1, snapc);  in ceph_invalidatepage()
168 	ceph_put_snap_context(snapc);  in ceph_invalidatepage()
494 	struct ceph_snap_context *snapc = NULL;  in get_oldest_context()  local
505 		if (snapc && capsnap->context != page_snapc)  in get_oldest_context()
521 		if (snapc)  in get_oldest_context()
524 		snapc = ceph_get_snap_context(capsnap->context);  in get_oldest_context()
526 		    page_snapc == snapc ||  in get_oldest_context()
527 		    page_snapc->seq > snapc->seq)  in get_oldest_context()
530 	if (!snapc && ci->i_wrbuffer_ref_head) {  in get_oldest_context()
531 		snapc = ceph_get_snap_context(ci->i_head_snapc);  in get_oldest_context()
533 		     snapc, ci->i_wrbuffer_ref_head);  in get_oldest_context()
543 	return snapc;  in get_oldest_context()
550 	struct ceph_snap_context *snapc = page_snap_context(page);  in get_writepages_data_length()  local
554 	if (snapc != ci->i_head_snapc) {  in get_writepages_data_length()
558 			if (capsnap->context == snapc) {  in get_writepages_data_length()
584 	struct ceph_snap_context *snapc, *oldest;  in writepage_nounlock()  local
596 	snapc = page_snap_context(page);  in writepage_nounlock()
597 	if (!snapc) {  in writepage_nounlock()
601 	oldest = get_oldest_context(inode, &ceph_wbc, snapc);  in writepage_nounlock()
602 	if (snapc->seq > oldest->seq) {  in writepage_nounlock()
604 		     inode, page, snapc);  in writepage_nounlock()
624 	     inode, page, page->index, page_off, len, snapc, snapc->seq);  in writepage_nounlock()
632 				   &ci->i_layout, snapc, page_off, len,  in writepage_nounlock()
660 	ceph_put_wrbuffer_cap_refs(ci, 1, snapc);  in writepage_nounlock()
661 	ceph_put_snap_context(snapc);  /* page's reference */  in writepage_nounlock()
702 	struct ceph_snap_context *snapc = req->r_snapc;  in writepages_finish()  local
765 	ceph_put_wrbuffer_cap_refs(ci, total_pages, snapc);  in writepages_finish()
787 	struct ceph_snap_context *snapc = NULL, *last_snapc = NULL, *pgsnapc;  in ceph_writepages_start()  local
819 	snapc = get_oldest_context(inode, &ceph_wbc, NULL);  in ceph_writepages_start()
820 	if (!snapc) {  in ceph_writepages_start()
827 	     snapc, snapc->seq, snapc->num_snaps);  in ceph_writepages_start()
830 	if (ceph_wbc.head_snapc && snapc != last_snapc) {  in ceph_writepages_start()
856 	last_snapc = snapc;  in ceph_writepages_start()
893 			if (pgsnapc != snapc) {  in ceph_writepages_start()
895 				     pgsnapc, pgsnapc->seq, snapc, snapc->seq);  in ceph_writepages_start()
1033 					snapc, ceph_wbc.truncate_seq,  in ceph_writepages_start()
1043 						snapc, ceph_wbc.truncate_seq,  in ceph_writepages_start()
1168 					if (page_snap_context(page) != snapc)  in ceph_writepages_start()
1198 					   struct ceph_snap_context *snapc)  in context_is_writeable_or_written()  argument
1201 	int ret = !oldest || snapc->seq <= oldest->seq;  in context_is_writeable_or_written()
1227 	struct ceph_snap_context *snapc, *oldest;  in ceph_update_writeable_page()  local
1239 	snapc = page_snap_context(page);  in ceph_update_writeable_page()
1240 	if (snapc && snapc != ci->i_head_snapc) {  in ceph_update_writeable_page()
1246 		if (snapc->seq > oldest->seq) {  in ceph_update_writeable_page()
1249 			     page, snapc);  in ceph_update_writeable_page()
1254 			snapc = ceph_get_snap_context(snapc);  in ceph_update_writeable_page()
1258 			       context_is_writeable_or_written(inode, snapc));  in ceph_update_writeable_page()
1259 			ceph_put_snap_context(snapc);  in ceph_update_writeable_page()
1268 		     page, snapc);  in ceph_update_writeable_page()