1235 	struct ceph_cap_snap *capsnap;  in __ceph_flush_snaps()  local
1249 	list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {  in __ceph_flush_snaps()
1251 		if (capsnap->follows < next_follows)  in __ceph_flush_snaps()
1257 		if (capsnap->dirty_pages || capsnap->writing)  in __ceph_flush_snaps()
1261 		BUG_ON(!capsnap->need_flush);  in __ceph_flush_snaps()
1270 		if (!kick && !list_empty(&capsnap->flushing_item)) {  in __ceph_flush_snaps()
1271 			dout("already flushed %p, skipping\n", capsnap);  in __ceph_flush_snaps()
1307 		capsnap->flush_tid = ++mdsc->last_cap_flush_tid;  in __ceph_flush_snaps()
1310 		atomic_inc(&capsnap->nref);  in __ceph_flush_snaps()
1311 		if (list_empty(&capsnap->flushing_item))  in __ceph_flush_snaps()
1312 			list_add_tail(&capsnap->flushing_item,  in __ceph_flush_snaps()
1317 		     inode, capsnap, capsnap->follows, capsnap->flush_tid);  in __ceph_flush_snaps()
1319 			     CEPH_CAP_OP_FLUSHSNAP, capsnap->issued, 0,  in __ceph_flush_snaps()
1320 			     capsnap->dirty, 0, capsnap->flush_tid, 0,  in __ceph_flush_snaps()
1321 			     0, mseq, capsnap->size, 0,  in __ceph_flush_snaps()
1322 			     &capsnap->mtime, &capsnap->atime,  in __ceph_flush_snaps()
1323 			     capsnap->time_warp_seq,  in __ceph_flush_snaps()
1324 			     capsnap->uid, capsnap->gid, capsnap->mode,  in __ceph_flush_snaps()
1325 			     capsnap->xattr_version, capsnap->xattr_blob,  in __ceph_flush_snaps()
1326 			     capsnap->follows, capsnap->inline_data);  in __ceph_flush_snaps()
1328 		next_follows = capsnap->follows + 1;  in __ceph_flush_snaps()
1329 		ceph_put_cap_snap(capsnap);  in __ceph_flush_snaps()
2096 	struct ceph_cap_snap *capsnap;  in kick_flushing_capsnaps()  local
2099 	list_for_each_entry(capsnap, &session->s_cap_snaps_flushing,  in kick_flushing_capsnaps()
2101 		struct ceph_inode_info *ci = capsnap->ci;  in kick_flushing_capsnaps()
2109 			     cap, capsnap);  in kick_flushing_capsnaps()
2553 static int ceph_try_drop_cap_snap(struct ceph_cap_snap *capsnap)  in ceph_try_drop_cap_snap()  argument
2555 	if (!capsnap->need_flush &&  in ceph_try_drop_cap_snap()
2556 	    !capsnap->writing && !capsnap->dirty_pages) {  in ceph_try_drop_cap_snap()
2559 		     capsnap, capsnap->follows);  in ceph_try_drop_cap_snap()
2560 		ceph_put_snap_context(capsnap->context);  in ceph_try_drop_cap_snap()
2561 		list_del(&capsnap->ci_item);  in ceph_try_drop_cap_snap()
2562 		list_del(&capsnap->flushing_item);  in ceph_try_drop_cap_snap()
2563 		ceph_put_cap_snap(capsnap);  in ceph_try_drop_cap_snap()
2604 				struct ceph_cap_snap *capsnap =  in ceph_put_cap_refs()  local
2608 				capsnap->writing = 0;  in ceph_put_cap_refs()
2609 				if (ceph_try_drop_cap_snap(capsnap))  in ceph_put_cap_refs()
2611 				else if (__ceph_finish_cap_snap(ci, capsnap))  in ceph_put_cap_refs()
2656 	struct ceph_cap_snap *capsnap = NULL;  in ceph_put_wrbuffer_cap_refs()  local
2678 		list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {  in ceph_put_wrbuffer_cap_refs()
2679 			if (capsnap->context == snapc) {  in ceph_put_wrbuffer_cap_refs()
2685 		capsnap->dirty_pages -= nr;  in ceph_put_wrbuffer_cap_refs()
2686 		if (capsnap->dirty_pages == 0) {  in ceph_put_wrbuffer_cap_refs()
2688 			drop_capsnap = ceph_try_drop_cap_snap(capsnap);  in ceph_put_wrbuffer_cap_refs()
2692 		     inode, capsnap, capsnap->context->seq,  in ceph_put_wrbuffer_cap_refs()
2693 		     ci->i_wrbuffer_ref+nr, capsnap->dirty_pages + nr,  in ceph_put_wrbuffer_cap_refs()
2694 		     ci->i_wrbuffer_ref, capsnap->dirty_pages,  in ceph_put_wrbuffer_cap_refs()
3111 	struct ceph_cap_snap *capsnap;  in handle_cap_flushsnap_ack()  local
3118 	list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {  in handle_cap_flushsnap_ack()
3119 		if (capsnap->follows == follows) {  in handle_cap_flushsnap_ack()
3120 			if (capsnap->flush_tid != flush_tid) {  in handle_cap_flushsnap_ack()
3122 				     " %lld\n", capsnap, follows,  in handle_cap_flushsnap_ack()
3123 				     flush_tid, capsnap->flush_tid);  in handle_cap_flushsnap_ack()
3126 			WARN_ON(capsnap->dirty_pages || capsnap->writing);  in handle_cap_flushsnap_ack()
3128 			     inode, capsnap, follows);  in handle_cap_flushsnap_ack()
3129 			ceph_put_snap_context(capsnap->context);  in handle_cap_flushsnap_ack()
3130 			list_del(&capsnap->ci_item);  in handle_cap_flushsnap_ack()
3131 			list_del(&capsnap->flushing_item);  in handle_cap_flushsnap_ack()
3132 			ceph_put_cap_snap(capsnap);  in handle_cap_flushsnap_ack()
3138 			     capsnap, capsnap->follows);  in handle_cap_flushsnap_ack()