diff options
| author | Ilya Dryomov <ilya.dryomov@inktank.com> | 2014-03-21 19:05:29 +0200 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2014-04-04 21:07:58 -0700 |
| commit | 9686f94c8cfc06e8afb7b2233ab8f1f6ac01957f (patch) | |
| tree | 3564192f1d42c7ac6caeafa0becd3bac88704538 | |
| parent | 35a935d75d51abe58d3427a8b4ae3745a5a14e1c (diff) | |
libceph: primary_temp infrastructure
Add primary_temp mappings infrastructure. struct ceph_pg_mapping is
overloaded, primary_temp mappings are stored in an rb-tree, rooted at
ceph_osdmap, in a manner similar to pg_temp mappings.
Dump primary_temp mappings to /sys/kernel/debug/ceph/<client>/osdmap,
one 'primary_temp <pgid> <osd>' per line, e.g:
primary_temp 2.6 4
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
| -rw-r--r-- | include/linux/ceph/osdmap.h | 5 | ||||
| -rw-r--r-- | net/ceph/debugfs.c | 7 | ||||
| -rw-r--r-- | net/ceph/osdmap.c | 10 |
3 files changed, 21 insertions, 1 deletions
diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h index 4837e58e3203..db4fb6322aae 100644 --- a/include/linux/ceph/osdmap.h +++ b/include/linux/ceph/osdmap.h @@ -66,6 +66,9 @@ struct ceph_pg_mapping { int len; int osds[]; } pg_temp; + struct { + int osd; + } primary_temp; }; }; @@ -83,6 +86,8 @@ struct ceph_osdmap { struct ceph_entity_addr *osd_addr; struct rb_root pg_temp; + struct rb_root primary_temp; + struct rb_root pg_pools; u32 pool_max; diff --git a/net/ceph/debugfs.c b/net/ceph/debugfs.c index 5865f2c9580a..612bf55e6a8b 100644 --- a/net/ceph/debugfs.c +++ b/net/ceph/debugfs.c @@ -93,6 +93,13 @@ static int osdmap_show(struct seq_file *s, void *p) pg->pg_temp.osds[i]); seq_printf(s, "]\n"); } + for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) { + struct ceph_pg_mapping *pg = + rb_entry(n, struct ceph_pg_mapping, node); + + seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool, + pg->pgid.seed, pg->primary_temp.osd); + } return 0; } diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index c67a309fdfc2..c0fc517ab321 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -343,7 +343,7 @@ bad: /* * rbtree of pg_mapping for handling pg_temp (explicit mapping of pgid - * to a set of osds) + * to a set of osds) and primary_temp (explicit primary setting) */ static int pgid_cmp(struct ceph_pg l, struct ceph_pg r) { @@ -633,6 +633,13 @@ void ceph_osdmap_destroy(struct ceph_osdmap *map) rb_erase(&pg->node, &map->pg_temp); kfree(pg); } + while (!RB_EMPTY_ROOT(&map->primary_temp)) { + struct ceph_pg_mapping *pg = + rb_entry(rb_first(&map->primary_temp), + struct ceph_pg_mapping, node); + rb_erase(&pg->node, &map->primary_temp); + kfree(pg); + } while (!RB_EMPTY_ROOT(&map->pg_pools)) { struct ceph_pg_pool_info *pi = rb_entry(rb_first(&map->pg_pools), @@ -966,6 +973,7 @@ struct ceph_osdmap *ceph_osdmap_decode(void **p, void *end) return ERR_PTR(-ENOMEM); map->pg_temp = RB_ROOT; + map->primary_temp = RB_ROOT; mutex_init(&map->crush_scratch_mutex); ret = osdmap_decode(p, end, map); |