Merge tag 'ceph-for-4.13-rc4' of git://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A bunch of fixes and follow-ups for -rc1 Luminous patches: issues with
  ->reencode_message() and last minute RADOS semantic changes in
  v12.1.2"

* tag 'ceph-for-4.13-rc4' of git://github.com/ceph/ceph-client:
  libceph: make RECOVERY_DELETES feature create a new interval
  libceph: upmap semantic changes
  crush: assume weight_set != null imples weight_set_size > 0
  libceph: fallback for when there isn't a pool-specific choose_arg
  libceph: don't call ->reencode_message() more than once per message
  libceph: make encode_request_*() work with r_mempool requests

1 files changed, 30 insertions, 30 deletions

diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 64ae9f89773a..f358d0bfa76b 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -295,6 +295,10 @@ static int decode_choose_args(void **p, void *end, struct crush_map *c)
 			ret = decode_choose_arg(p, end, arg);
 			if (ret)
 				goto fail;
+
+			if (arg->ids_size &&
+			    arg->ids_size != c->buckets[bucket_index]->size)
+				goto e_inval;
 		}
 
 		insert_choose_arg_map(&c->choose_args, arg_map);
@@ -2078,6 +2082,8 @@ bool ceph_is_new_interval(const struct ceph_osds *old_acting,
 			  u32 new_pg_num,
 			  bool old_sort_bitwise,
 			  bool new_sort_bitwise,
+			  bool old_recovery_deletes,
+			  bool new_recovery_deletes,
 			  const struct ceph_pg *pgid)
 {
 	return !osds_equal(old_acting, new_acting) ||
@@ -2085,7 +2091,8 @@ bool ceph_is_new_interval(const struct ceph_osds *old_acting,
 	       old_size != new_size ||
 	       old_min_size != new_min_size ||
 	       ceph_pg_is_split(pgid, old_pg_num, new_pg_num) ||
-	       old_sort_bitwise != new_sort_bitwise;
+	       old_sort_bitwise != new_sort_bitwise ||
+	       old_recovery_deletes != new_recovery_deletes;
 }
 
 static int calc_pg_rank(int osd, const struct ceph_osds *acting)
@@ -2301,10 +2308,17 @@ static u32 raw_pg_to_pps(struct ceph_pg_pool_info *pi,
 	}
 }
 
+/*
+ * Magic value used for a "default" fallback choose_args, used if the
+ * crush_choose_arg_map passed to do_crush() does not exist.  If this
+ * also doesn't exist, fall back to canonical weights.
+ */
+#define CEPH_DEFAULT_CHOOSE_ARGS	-1
+
 static int do_crush(struct ceph_osdmap *map, int ruleno, int x,
 		    int *result, int result_max,
 		    const __u32 *weight, int weight_max,
-		    u64 choose_args_index)
+		    s64 choose_args_index)
 {
 	struct crush_choose_arg_map *arg_map;
 	int r;
@@ -2313,6 +2327,9 @@ static int do_crush(struct ceph_osdmap *map, int ruleno, int x,
 
 	arg_map = lookup_choose_arg_map(&map->crush->choose_args,
 					choose_args_index);
+	if (!arg_map)
+		arg_map = lookup_choose_arg_map(&map->crush->choose_args,
+						CEPH_DEFAULT_CHOOSE_ARGS);
 
 	mutex_lock(&map->crush_workspace_mutex);
 	r = crush_do_rule(map->crush, ruleno, x, result, result_max,
@@ -2423,40 +2440,23 @@ static void apply_upmap(struct ceph_osdmap *osdmap,
 		for (i = 0; i < pg->pg_upmap.len; i++)
 			raw->osds[i] = pg->pg_upmap.osds[i];
 		raw->size = pg->pg_upmap.len;
-		return;
+		/* check and apply pg_upmap_items, if any */
 	}
 
 	pg = lookup_pg_mapping(&osdmap->pg_upmap_items, pgid);
 	if (pg) {
-		/*
-		 * Note: this approach does not allow a bidirectional swap,
-		 * e.g., [[1,2],[2,1]] applied to [0,1,2] -> [0,2,1].
-		 */
-		for (i = 0; i < pg->pg_upmap_items.len; i++) {
-			int from = pg->pg_upmap_items.from_to[i][0];
-			int to = pg->pg_upmap_items.from_to[i][1];
-			int pos = -1;
-			bool exists = false;
-
-			/* make sure replacement doesn't already appear */
-			for (j = 0; j < raw->size; j++) {
-				int osd = raw->osds[j];
-
-				if (osd == to) {
-					exists = true;
+		for (i = 0; i < raw->size; i++) {
+			for (j = 0; j < pg->pg_upmap_items.len; j++) {
+				int from = pg->pg_upmap_items.from_to[j][0];
+				int to = pg->pg_upmap_items.from_to[j][1];
+
+				if (from == raw->osds[i]) {
+					if (!(to != CRUSH_ITEM_NONE &&
+					      to < osdmap->max_osd &&
+					      osdmap->osd_weight[to] == 0))
+						raw->osds[i] = to;
 					break;
 				}
-				/* ignore mapping if target is marked out */
-				if (osd == from && pos < 0 &&
-				    !(to != CRUSH_ITEM_NONE &&
-				      to < osdmap->max_osd &&
-				      osdmap->osd_weight[to] == 0)) {
-					pos = j;
-				}
-			}
-			if (!exists && pos >= 0) {
-				raw->osds[pos] = to;
-				return;
 			}
 		}
 	}