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authorSage Weil <sage@inktank.com>2012-05-07 15:33:36 -0700
committerSage Weil <sage@inktank.com>2012-05-07 15:33:36 -0700
commit3469ac1aa3a2f1e2586a412923c414779a0af854 (patch)
treeb271456518130622e6d394cf50939c132f1a1d0d /net/ceph/osdmap.c
parentcd9d9f5df6098c50726200d4185e9e8da32785b3 (diff)
downloadlinux-3469ac1aa3a2f1e2586a412923c414779a0af854.tar.gz
ceph: drop support for preferred_osd pgs
This was an ill-conceived feature that has been removed from Ceph. Do this gracefully: - reject attempts to specify a preferred_osd via the ioctl - stop exposing this information via virtual xattrs - always fill in -1 for requests, in case we talk to an older server - don't calculate preferred_osd placements/pgids Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'net/ceph/osdmap.c')
-rw-r--r--net/ceph/osdmap.c47
1 files changed, 10 insertions, 37 deletions
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 29ad46ec9dc..7d39f3cb494 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -1000,7 +1000,6 @@ int ceph_calc_object_layout(struct ceph_object_layout *ol,
{
unsigned num, num_mask;
struct ceph_pg pgid;
- s32 preferred = (s32)le32_to_cpu(fl->fl_pg_preferred);
int poolid = le32_to_cpu(fl->fl_pg_pool);
struct ceph_pg_pool_info *pool;
unsigned ps;
@@ -1011,23 +1010,13 @@ int ceph_calc_object_layout(struct ceph_object_layout *ol,
if (!pool)
return -EIO;
ps = ceph_str_hash(pool->v.object_hash, oid, strlen(oid));
- if (preferred >= 0) {
- ps += preferred;
- num = le32_to_cpu(pool->v.lpg_num);
- num_mask = pool->lpg_num_mask;
- } else {
- num = le32_to_cpu(pool->v.pg_num);
- num_mask = pool->pg_num_mask;
- }
+ num = le32_to_cpu(pool->v.pg_num);
+ num_mask = pool->pg_num_mask;
pgid.ps = cpu_to_le16(ps);
- pgid.preferred = cpu_to_le16(preferred);
+ pgid.preferred = cpu_to_le16(-1);
pgid.pool = fl->fl_pg_pool;
- if (preferred >= 0)
- dout("calc_object_layout '%s' pgid %d.%xp%d\n", oid, poolid, ps,
- (int)preferred);
- else
- dout("calc_object_layout '%s' pgid %d.%x\n", oid, poolid, ps);
+ dout("calc_object_layout '%s' pgid %d.%x\n", oid, poolid, ps);
ol->ol_pgid = pgid;
ol->ol_stripe_unit = fl->fl_object_stripe_unit;
@@ -1046,23 +1035,17 @@ static int *calc_pg_raw(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
struct ceph_pg_pool_info *pool;
int ruleno;
unsigned poolid, ps, pps, t;
- int preferred;
poolid = le32_to_cpu(pgid.pool);
ps = le16_to_cpu(pgid.ps);
- preferred = (s16)le16_to_cpu(pgid.preferred);
pool = __lookup_pg_pool(&osdmap->pg_pools, poolid);
if (!pool)
return NULL;
/* pg_temp? */
- if (preferred >= 0)
- t = ceph_stable_mod(ps, le32_to_cpu(pool->v.lpg_num),
- pool->lpgp_num_mask);
- else
- t = ceph_stable_mod(ps, le32_to_cpu(pool->v.pg_num),
- pool->pgp_num_mask);
+ t = ceph_stable_mod(ps, le32_to_cpu(pool->v.pg_num),
+ pool->pgp_num_mask);
pgid.ps = cpu_to_le16(t);
pg = __lookup_pg_mapping(&osdmap->pg_temp, pgid);
if (pg) {
@@ -1080,23 +1063,13 @@ static int *calc_pg_raw(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
return NULL;
}
- /* don't forcefeed bad device ids to crush */
- if (preferred >= osdmap->max_osd ||
- preferred >= osdmap->crush->max_devices)
- preferred = -1;
-
- if (preferred >= 0)
- pps = ceph_stable_mod(ps,
- le32_to_cpu(pool->v.lpgp_num),
- pool->lpgp_num_mask);
- else
- pps = ceph_stable_mod(ps,
- le32_to_cpu(pool->v.pgp_num),
- pool->pgp_num_mask);
+ pps = ceph_stable_mod(ps,
+ 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),
- preferred, osdmap->osd_weight);
+ -1, osdmap->osd_weight);
return osds;
}