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authorIlya Dryomov <ilya.dryomov@inktank.com>2014-03-21 19:05:30 +0200
committerSage Weil <sage@inktank.com>2014-04-04 21:08:04 -0700
commit63a6993f521b2629872e89c02a336fb3f18b092b (patch)
tree1d3dcc49a45bcd4beaeb132c0b3521de86bea76c /net
parent2cfa34f2d67a36e292cbe6e4c1e60d212b7ba4d1 (diff)
downloadlinux-63a6993f521b2629872e89c02a336fb3f18b092b.tar.bz2
libceph: primary_affinity decode bits
Add two helpers to decode primary_affinity (full map, vector<u32>) and new_primary_affinity (inc map, map<u32, u32>) and switch to them. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org>
Diffstat (limited to 'net')
-rw-r--r--net/ceph/osdmap.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 0ac129388e07..9568e6221852 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -959,6 +959,60 @@ static int set_primary_affinity(struct ceph_osdmap *map, int osd, u32 aff)
return 0;
}
+static int decode_primary_affinity(void **p, void *end,
+ struct ceph_osdmap *map)
+{
+ u32 len, i;
+
+ ceph_decode_32_safe(p, end, len, e_inval);
+ if (len == 0) {
+ kfree(map->osd_primary_affinity);
+ map->osd_primary_affinity = NULL;
+ return 0;
+ }
+ if (len != map->max_osd)
+ goto e_inval;
+
+ ceph_decode_need(p, end, map->max_osd*sizeof(u32), e_inval);
+
+ for (i = 0; i < map->max_osd; i++) {
+ int ret;
+
+ ret = set_primary_affinity(map, i, ceph_decode_32(p));
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+
+e_inval:
+ return -EINVAL;
+}
+
+static int decode_new_primary_affinity(void **p, void *end,
+ struct ceph_osdmap *map)
+{
+ u32 n;
+
+ ceph_decode_32_safe(p, end, n, e_inval);
+ while (n--) {
+ u32 osd, aff;
+ int ret;
+
+ ceph_decode_32_safe(p, end, osd, e_inval);
+ ceph_decode_32_safe(p, end, aff, e_inval);
+
+ ret = set_primary_affinity(map, osd, aff);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+
+e_inval:
+ return -EINVAL;
+}
+
/*
* decode a full map.
*/
@@ -1042,6 +1096,17 @@ static int osdmap_decode(void **p, void *end, struct ceph_osdmap *map)
goto bad;
}
+ /* primary_affinity */
+ if (struct_v >= 2) {
+ err = decode_primary_affinity(p, end, map);
+ if (err)
+ goto bad;
+ } else {
+ /* XXX can this happen? */
+ kfree(map->osd_primary_affinity);
+ map->osd_primary_affinity = NULL;
+ }
+
/* crush */
ceph_decode_32_safe(p, end, len, e_inval);
map->crush = crush_decode(*p, min(*p + len, end));
@@ -1249,6 +1314,13 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
goto bad;
}
+ /* new_primary_affinity */
+ if (struct_v >= 2) {
+ err = decode_new_primary_affinity(p, end, map);
+ if (err)
+ goto bad;
+ }
+
/* ignore the rest */
*p = end;