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authorSage Weil <sage@newdream.net>2010-03-17 18:05:28 +0100
committerSage Weil <sage@newdream.net>2010-03-23 15:46:57 +0100
commitefd7576b2392cc5a0934352936d793e8884c46bf (patch)
tree4a45863267977b47b6e712987119af8a0a9a8581 /fs
parentceph: fix mds sync() race with completing requests (diff)
downloadlinux-efd7576b2392cc5a0934352936d793e8884c46bf.tar.xz
linux-efd7576b2392cc5a0934352936d793e8884c46bf.zip
ceph: fix pg pool decoding from incremental osdmap update
The incremental map decoding of pg pool updates wasn't skipping the snaps and removed_snaps vectors. This caused osd requests to stall when pool snapshots were created or fs snapshots were deleted. Use a common helper for full and incremental map decoders that decodes pools properly. Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs')
-rw-r--r--fs/ceph/osdmap.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c
index b83f2692b835..d82fe87c2a6e 100644
--- a/fs/ceph/osdmap.c
+++ b/fs/ceph/osdmap.c
@@ -480,6 +480,14 @@ static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, int id)
return NULL;
}
+void __decode_pool(void **p, struct ceph_pg_pool_info *pi)
+{
+ ceph_decode_copy(p, &pi->v, sizeof(pi->v));
+ calc_pg_masks(pi);
+ *p += le32_to_cpu(pi->v.num_snaps) * sizeof(u64);
+ *p += le32_to_cpu(pi->v.num_removed_snap_intervals) * sizeof(u64) * 2;
+}
+
/*
* decode a full map.
*/
@@ -526,12 +534,8 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
ev, CEPH_PG_POOL_VERSION);
goto bad;
}
- ceph_decode_copy(p, &pi->v, sizeof(pi->v));
+ __decode_pool(p, pi);
__insert_pg_pool(&map->pg_pools, pi);
- calc_pg_masks(pi);
- *p += le32_to_cpu(pi->v.num_snaps) * sizeof(u64);
- *p += le32_to_cpu(pi->v.num_removed_snap_intervals)
- * sizeof(u64) * 2;
}
ceph_decode_32_safe(p, end, map->pool_max, bad);
@@ -714,8 +718,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
pi->id = pool;
__insert_pg_pool(&map->pg_pools, pi);
}
- ceph_decode_copy(p, &pi->v, sizeof(pi->v));
- calc_pg_masks(pi);
+ __decode_pool(p, pi);
}
/* old_pool */