From 8b393269008411a612ca549b733b4296e819f2fb Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@inktank.com>
Date: Mon, 7 May 2012 15:37:23 -0700
Subject: [PATCH] crush: warn on do_rule failure
If we get an error code from crush_do_rule(), print an error to the
console.
Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Sage Weil <sage@inktank.com>
---
net/ceph/osdmap.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index dac448ba68e4..2592f3cca987 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -1027,7 +1027,7 @@ static int *calc_pg_raw(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
struct ceph_pg_mapping *pg;
struct ceph_pg_pool_info *pool;
int ruleno;
- unsigned poolid, ps, pps, t;
+ unsigned poolid, ps, pps, t, r;
poolid = le32_to_cpu(pgid.pool);
ps = le16_to_cpu(pgid.ps);
@@ -1060,9 +1060,16 @@ static int *calc_pg_raw(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
le32_to_cpu(pool->v.pgp_num),
pool->pgp_num_mask);
pps += poolid;
- *num = crush_do_rule(osdmap->crush, ruleno, pps, osds,
- min_t(int, pool->v.size, *num),
- osdmap->osd_weight);
+ r = crush_do_rule(osdmap->crush, ruleno, pps, osds,
+ min_t(int, pool->v.size, *num),
+ osdmap->osd_weight);
+ if (r < 0) {
+ pr_err("error %d from crush rule: pool %d ruleset %d type %d"
+ " size %d\n", r, poolid, pool->v.crush_ruleset,
+ pool->v.type, pool->v.size);
+ return NULL;
+ }
+ *num = r;
return osds;
}
--
2.34.1