From df28152d53b449a72258000f592472215fc9371e Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Thu, 15 Jun 2017 16:30:56 +0200 Subject: [PATCH] libceph: avoid unnecessary pi lookups in calc_target() Signed-off-by: Ilya Dryomov --- include/linux/ceph/osdmap.h | 10 +++++-- net/ceph/osd_client.c | 8 +++--- net/ceph/osdmap.c | 54 ++++++++++++++++++++----------------- 3 files changed, 42 insertions(+), 30 deletions(-) diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h index 63fb073a3355..060d059acbf8 100644 --- a/include/linux/ceph/osdmap.h +++ b/include/linux/ceph/osdmap.h @@ -273,16 +273,22 @@ extern int ceph_calc_file_object_mapping(struct ceph_file_layout *layout, u64 off, u64 len, u64 *bno, u64 *oxoff, u64 *oxlen); +int __ceph_object_locator_to_pg(struct ceph_pg_pool_info *pi, + const struct ceph_object_id *oid, + const struct ceph_object_locator *oloc, + struct ceph_pg *raw_pgid); int ceph_object_locator_to_pg(struct ceph_osdmap *osdmap, - struct ceph_object_id *oid, - struct ceph_object_locator *oloc, + const struct ceph_object_id *oid, + const struct ceph_object_locator *oloc, struct ceph_pg *raw_pgid); void ceph_pg_to_up_acting_osds(struct ceph_osdmap *osdmap, + struct ceph_pg_pool_info *pi, const struct ceph_pg *raw_pgid, struct ceph_osds *up, struct ceph_osds *acting); bool ceph_pg_to_primary_shard(struct ceph_osdmap *osdmap, + struct ceph_pg_pool_info *pi, const struct ceph_pg *raw_pgid, struct ceph_spg *spgid); int ceph_pg_to_acting_primary(struct ceph_osdmap *osdmap, diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index ce0055dc7544..620aa43a6a0a 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -1368,8 +1368,8 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc, } } - ret = ceph_object_locator_to_pg(osdc->osdmap, &t->target_oid, - &t->target_oloc, &pgid); + ret = __ceph_object_locator_to_pg(pi, &t->target_oid, &t->target_oloc, + &pgid); if (ret) { WARN_ON(ret != -ENOENT); t->osd = CEPH_HOMELESS_OSD; @@ -1379,7 +1379,7 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc, last_pgid.pool = pgid.pool; last_pgid.seed = ceph_stable_mod(pgid.seed, t->pg_num, t->pg_num_mask); - ceph_pg_to_up_acting_osds(osdc->osdmap, &pgid, &up, &acting); + ceph_pg_to_up_acting_osds(osdc->osdmap, pi, &pgid, &up, &acting); if (any_change && ceph_is_new_interval(&t->acting, &acting, @@ -1407,7 +1407,7 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc, if (legacy_change || force_resend || split) { t->pgid = pgid; /* struct */ - ceph_pg_to_primary_shard(osdc->osdmap, &pgid, &t->spgid); + ceph_pg_to_primary_shard(osdc->osdmap, pi, &pgid, &t->spgid); ceph_osds_copy(&t->acting, &acting); ceph_osds_copy(&t->up, &up); t->size = pi->size; diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index 367879afed58..1e2e190a4c2a 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -1923,16 +1923,12 @@ EXPORT_SYMBOL(ceph_calc_file_object_mapping); * Should only be called with target_oid and target_oloc (as opposed to * base_oid and base_oloc), since tiering isn't taken into account. */ -int ceph_object_locator_to_pg(struct ceph_osdmap *osdmap, - struct ceph_object_id *oid, - struct ceph_object_locator *oloc, - struct ceph_pg *raw_pgid) +int __ceph_object_locator_to_pg(struct ceph_pg_pool_info *pi, + const struct ceph_object_id *oid, + const struct ceph_object_locator *oloc, + struct ceph_pg *raw_pgid) { - struct ceph_pg_pool_info *pi; - - pi = ceph_pg_pool_by_id(osdmap, oloc->pool); - if (!pi) - return -ENOENT; + WARN_ON(pi->id != oloc->pool); if (!oloc->pool_ns) { raw_pgid->pool = oloc->pool; @@ -1964,6 +1960,20 @@ int ceph_object_locator_to_pg(struct ceph_osdmap *osdmap, } return 0; } + +int ceph_object_locator_to_pg(struct ceph_osdmap *osdmap, + const struct ceph_object_id *oid, + const struct ceph_object_locator *oloc, + struct ceph_pg *raw_pgid) +{ + struct ceph_pg_pool_info *pi; + + pi = ceph_pg_pool_by_id(osdmap, oloc->pool); + if (!pi) + return -ENOENT; + + return __ceph_object_locator_to_pg(pi, oid, oloc, raw_pgid); +} EXPORT_SYMBOL(ceph_object_locator_to_pg); /* @@ -2236,19 +2246,14 @@ static void get_temp_osds(struct ceph_osdmap *osdmap, * resend a request. */ void ceph_pg_to_up_acting_osds(struct ceph_osdmap *osdmap, + struct ceph_pg_pool_info *pi, const struct ceph_pg *raw_pgid, struct ceph_osds *up, struct ceph_osds *acting) { - struct ceph_pg_pool_info *pi; u32 pps; - pi = ceph_pg_pool_by_id(osdmap, raw_pgid->pool); - if (!pi) { - ceph_osds_init(up); - ceph_osds_init(acting); - goto out; - } + WARN_ON(pi->id != raw_pgid->pool); pg_to_raw_osds(osdmap, pi, raw_pgid, up, &pps); raw_to_up_osds(osdmap, pi, up); @@ -2260,23 +2265,19 @@ void ceph_pg_to_up_acting_osds(struct ceph_osdmap *osdmap, if (acting->primary == -1) acting->primary = up->primary; } -out: WARN_ON(!osds_valid(up) || !osds_valid(acting)); } bool ceph_pg_to_primary_shard(struct ceph_osdmap *osdmap, + struct ceph_pg_pool_info *pi, 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; - + WARN_ON(pi->id != raw_pgid->pool); raw_pg_to_pg(pi, raw_pgid, &pgid); if (ceph_can_shift_osds(pi)) { @@ -2285,7 +2286,7 @@ bool ceph_pg_to_primary_shard(struct ceph_osdmap *osdmap, return true; } - ceph_pg_to_up_acting_osds(osdmap, &pgid, &up, &acting); + ceph_pg_to_up_acting_osds(osdmap, pi, &pgid, &up, &acting); for (i = 0; i < acting.size; i++) { if (acting.osds[i] == acting.primary) { spgid->pgid = pgid; /* struct */ @@ -2303,9 +2304,14 @@ bool ceph_pg_to_primary_shard(struct ceph_osdmap *osdmap, int ceph_pg_to_acting_primary(struct ceph_osdmap *osdmap, const struct ceph_pg *raw_pgid) { + struct ceph_pg_pool_info *pi; struct ceph_osds up, acting; - ceph_pg_to_up_acting_osds(osdmap, raw_pgid, &up, &acting); + pi = ceph_pg_pool_by_id(osdmap, raw_pgid->pool); + if (!pi) + return -1; + + ceph_pg_to_up_acting_osds(osdmap, pi, raw_pgid, &up, &acting); return acting.primary; } EXPORT_SYMBOL(ceph_pg_to_acting_primary); -- GitLab