Commit dc98ff72 authored by Ilya Dryomov's avatar Ilya Dryomov

libceph: introduce ceph_spg, ceph_pg_to_primary_shard()

Store both raw pgid and actual spgid in ceph_osd_request_target.
Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent 8e48cf00
......@@ -136,7 +136,8 @@ struct ceph_osd_request_target {
struct ceph_object_id target_oid;
struct ceph_object_locator target_oloc;
struct ceph_pg pgid;
struct ceph_pg pgid; /* last raw pg we mapped to */
struct ceph_spg spgid; /* last actual spg we mapped to */
u32 pg_num;
u32 pg_num_mask;
struct ceph_osds acting;
......
......@@ -24,6 +24,13 @@ struct ceph_pg {
uint32_t seed;
};
#define CEPH_SPG_NOSHARD -1
struct ceph_spg {
struct ceph_pg pgid;
s8 shard;
};
int ceph_pg_compare(const struct ceph_pg *lhs, const struct ceph_pg *rhs);
#define CEPH_POOL_FLAG_HASHPSPOOL (1ULL << 0) /* hash pg seed and pool id
......@@ -271,6 +278,9 @@ void ceph_pg_to_up_acting_osds(struct ceph_osdmap *osdmap,
const struct ceph_pg *raw_pgid,
struct ceph_osds *up,
struct ceph_osds *acting);
bool ceph_pg_to_primary_shard(struct ceph_osdmap *osdmap,
const struct ceph_pg *raw_pgid,
struct ceph_spg *spgid);
int ceph_pg_to_acting_primary(struct ceph_osdmap *osdmap,
const struct ceph_pg *raw_pgid);
......
......@@ -147,11 +147,20 @@ static int monc_show(struct seq_file *s, void *p)
return 0;
}
static void dump_spgid(struct seq_file *s, const struct ceph_spg *spgid)
{
seq_printf(s, "%llu.%x", spgid->pgid.pool, spgid->pgid.seed);
if (spgid->shard != CEPH_SPG_NOSHARD)
seq_printf(s, "s%d", spgid->shard);
}
static void dump_target(struct seq_file *s, struct ceph_osd_request_target *t)
{
int i;
seq_printf(s, "osd%d\t%llu.%x\t[", t->osd, t->pgid.pool, t->pgid.seed);
seq_printf(s, "osd%d\t%llu.%x\t", t->osd, t->pgid.pool, t->pgid.seed);
dump_spgid(s, &t->spgid);
seq_puts(s, "\t[");
for (i = 0; i < t->up.size; i++)
seq_printf(s, "%s%d", (!i ? "" : ","), t->up.osds[i]);
seq_printf(s, "]/%d\t[", t->up.primary);
......
......@@ -373,6 +373,7 @@ static void target_copy(struct ceph_osd_request_target *dest,
ceph_oloc_copy(&dest->target_oloc, &src->target_oloc);
dest->pgid = src->pgid; /* struct */
dest->spgid = src->spgid; /* struct */
dest->pg_num = src->pg_num;
dest->pg_num_mask = src->pg_num_mask;
ceph_osds_copy(&dest->acting, &src->acting);
......@@ -1394,6 +1395,7 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc,
ceph_osds_changed(&t->acting, &acting, any_change) ||
force_resend) {
t->pgid = pgid; /* struct */
ceph_pg_to_primary_shard(osdc->osdmap, &pgid, &t->spgid);
ceph_osds_copy(&t->acting, &acting);
ceph_osds_copy(&t->up, &up);
t->size = pi->size;
......@@ -1595,9 +1597,10 @@ static void send_request(struct ceph_osd_request *req)
encode_request(req, req->r_request);
dout("%s req %p tid %llu to pg %llu.%x osd%d flags 0x%x attempt %d\n",
dout("%s req %p tid %llu to pgid %llu.%x spgid %llu.%xs%d osd%d flags 0x%x attempt %d\n",
__func__, req, req->r_tid, req->r_t.pgid.pool, req->r_t.pgid.seed,
req->r_t.osd, req->r_flags, req->r_attempts);
req->r_t.spgid.pgid.pool, req->r_t.spgid.pgid.seed,
req->r_t.spgid.shard, osd->o_osd, req->r_flags, req->r_attempts);
req->r_t.paused = false;
req->r_stamp = jiffies;
......
......@@ -2265,6 +2265,39 @@ void ceph_pg_to_up_acting_osds(struct ceph_osdmap *osdmap,
WARN_ON(!osds_valid(up) || !osds_valid(acting));
}
bool ceph_pg_to_primary_shard(struct ceph_osdmap *osdmap,
const struct ceph_pg *raw_pgid,
struct ceph_spg *spgid)
{
struct ceph_pg_pool_info *pi;
struct ceph_pg pgid;
struct ceph_osds up, acting;
int i;
pi = ceph_pg_pool_by_id(osdmap, raw_pgid->pool);
if (!pi)
return false;
raw_pg_to_pg(pi, raw_pgid, &pgid);
if (ceph_can_shift_osds(pi)) {
spgid->pgid = pgid; /* struct */
spgid->shard = CEPH_SPG_NOSHARD;
return true;
}
ceph_pg_to_up_acting_osds(osdmap, &pgid, &up, &acting);
for (i = 0; i < acting.size; i++) {
if (acting.osds[i] == acting.primary) {
spgid->pgid = pgid; /* struct */
spgid->shard = i;
return true;
}
}
return false;
}
/*
* Return acting primary for given PG, or -1 if none.
*/
......
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