X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Flov%2Flov_qos.c;h=2262c503af6bc56e2d048422cb6321da5fba1698;hp=084e2f2446365dc1829eaf3442978bb1035d105d;hb=eb7c28ff977f4e0a280558aa74e23f2a9ab0ea0c;hpb=b1026acd3a05c4dccf80c5b0e499e198e62d4fca diff --git a/lustre/lov/lov_qos.c b/lustre/lov/lov_qos.c index 084e2f2..2262c50 100644 --- a/lustre/lov/lov_qos.c +++ b/lustre/lov/lov_qos.c @@ -26,7 +26,7 @@ * GPL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. */ /* @@ -55,7 +55,6 @@ #define TGT_BAVAIL(i) (lov->lov_tgts[i]->ltd_exp->exp_obd->obd_osfs.os_bavail *\ lov->lov_tgts[i]->ltd_exp->exp_obd->obd_osfs.os_bsize) -#define TGT_FFREE(i) (lov->lov_tgts[i]->ltd_exp->exp_obd->obd_osfs.os_ffree) int qos_add_tgt(struct obd_device *obd, __u32 index) @@ -73,9 +72,9 @@ int qos_add_tgt(struct obd_device *obd, __u32 index) RETURN(-ENOTCONN); } - down_write(&lov->lov_qos.lq_rw_sem); - mutex_down(&lov->lov_lock); - list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { + cfs_down_write(&lov->lov_qos.lq_rw_sem); + cfs_mutex_down(&lov->lov_lock); + cfs_list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { if (obd_uuid_equals(&oss->lqo_uuid, &exp->exp_connection->c_remote_uuid)) { found++; @@ -92,7 +91,7 @@ int qos_add_tgt(struct obd_device *obd, __u32 index) sizeof(oss->lqo_uuid)); } else { /* Assume we have to move this one */ - list_del(&oss->lqo_oss_list); + cfs_list_del(&oss->lqo_oss_list); } oss->lqo_ost_count++; @@ -100,13 +99,14 @@ int qos_add_tgt(struct obd_device *obd, __u32 index) /* Add sorted by # of OSTs. Find the first entry that we're bigger than... */ - list_for_each_entry(temposs, &lov->lov_qos.lq_oss_list, lqo_oss_list) { + cfs_list_for_each_entry(temposs, &lov->lov_qos.lq_oss_list, + lqo_oss_list) { if (oss->lqo_ost_count > temposs->lqo_ost_count) break; } /* ...and add before it. If we're the first or smallest, temposs points to the list head, and we add to the end. */ - list_add_tail(&oss->lqo_oss_list, &temposs->lqo_oss_list); + cfs_list_add_tail(&oss->lqo_oss_list, &temposs->lqo_oss_list); lov->lov_qos.lq_dirty = 1; lov->lov_qos.lq_rr.lqr_dirty = 1; @@ -117,8 +117,8 @@ int qos_add_tgt(struct obd_device *obd, __u32 index) oss->lqo_ost_count); out: - mutex_up(&lov->lov_lock); - up_write(&lov->lov_qos.lq_rw_sem); + cfs_mutex_up(&lov->lov_lock); + cfs_up_write(&lov->lov_qos.lq_rw_sem); RETURN(rc); } @@ -129,7 +129,7 @@ int qos_del_tgt(struct obd_device *obd, struct lov_tgt_desc *tgt) int rc = 0; ENTRY; - down_write(&lov->lov_qos.lq_rw_sem); + cfs_down_write(&lov->lov_qos.lq_rw_sem); oss = tgt->ltd_qos.ltq_oss; if (!oss) @@ -139,14 +139,14 @@ int qos_del_tgt(struct obd_device *obd, struct lov_tgt_desc *tgt) if (oss->lqo_ost_count == 0) { CDEBUG(D_QOS, "removing OSS %s\n", obd_uuid2str(&oss->lqo_uuid)); - list_del(&oss->lqo_oss_list); + cfs_list_del(&oss->lqo_oss_list); OBD_FREE_PTR(oss); } lov->lov_qos.lq_dirty = 1; lov->lov_qos.lq_rr.lqr_dirty = 1; out: - up_write(&lov->lov_qos.lq_rw_sem); + cfs_up_write(&lov->lov_qos.lq_rw_sem); RETURN(rc); } @@ -170,7 +170,7 @@ static int qos_calc_ppo(struct obd_device *obd) GOTO(out, rc = -EAGAIN); /* find bavail on each OSS */ - list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { + cfs_list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { oss->lqo_bavail = 0; } lov->lov_qos.lq_active_oss_count = 0; @@ -231,7 +231,7 @@ static int qos_calc_ppo(struct obd_device *obd) } /* Per-OSS penalty is prio * oss_avail / oss_osts / (num_oss - 1) / 2 */ - list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { + cfs_list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { temp = oss->lqo_bavail >> 1; do_div(temp, oss->lqo_ost_count * num_active); oss->lqo_penalty_per_obj = (temp * prio_wide) >> 8; @@ -312,7 +312,7 @@ static int qos_used(struct lov_obd *lov, struct ost_pool *osts, lov->lov_qos.lq_active_oss_count; /* Decrease all OSS penalties */ - list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { + cfs_list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { if (oss->lqo_penalty < oss->lqo_penalty_per_obj) oss->lqo_penalty = 0; else @@ -373,7 +373,7 @@ static int qos_calc_rr(struct lov_obd *lov, struct ost_pool *src_pool, } /* Do actual allocation. */ - down_write(&lov->lov_qos.lq_rw_sem); + cfs_down_write(&lov->lov_qos.lq_rw_sem); /* * Check again. While we were sleeping on @lq_rw_sem something could @@ -381,7 +381,7 @@ static int qos_calc_rr(struct lov_obd *lov, struct ost_pool *src_pool, */ if (!lqr->lqr_dirty) { LASSERT(lqr->lqr_pool.op_size); - up_write(&lov->lov_qos.lq_rw_sem); + cfs_up_write(&lov->lov_qos.lq_rw_sem); RETURN(0); } @@ -394,7 +394,7 @@ static int qos_calc_rr(struct lov_obd *lov, struct ost_pool *src_pool, lqr->lqr_pool.op_count = real_count; rc = lov_ost_pool_extend(&lqr->lqr_pool, real_count); if (rc) { - up_write(&lov->lov_qos.lq_rw_sem); + cfs_up_write(&lov->lov_qos.lq_rw_sem); RETURN(rc); } for (i = 0; i < lqr->lqr_pool.op_count; i++) @@ -402,7 +402,7 @@ static int qos_calc_rr(struct lov_obd *lov, struct ost_pool *src_pool, /* Place all the OSTs from 1 OSS at the same time. */ placed = 0; - list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { + cfs_list_for_each_entry(oss, &lov->lov_qos.lq_oss_list, lqo_oss_list) { int j = 0; for (i = 0; i < lqr->lqr_pool.op_count; i++) { if (lov->lov_tgts[src_pool->op_array[i]] && @@ -420,7 +420,7 @@ static int qos_calc_rr(struct lov_obd *lov, struct ost_pool *src_pool, } lqr->lqr_dirty = 0; - up_write(&lov->lov_qos.lq_rw_sem); + cfs_up_write(&lov->lov_qos.lq_rw_sem); if (placed != real_count) { /* This should never happen */ @@ -494,36 +494,80 @@ void qos_shrink_lsm(struct lov_request_set *set) } } +/** + * Check whether we can create the object on the OST(refered by ost_idx) + * \retval: + * 0: create the object. + * other value: did not create the object. + */ +static int lov_check_and_create_object(struct lov_obd *lov, int ost_idx, + struct lov_stripe_md *lsm, + struct lov_request *req, + struct obd_trans_info *oti) +{ + int stripe; + int rc = -EIO; + ENTRY; + + CDEBUG(D_QOS, "Check and create on idx %d \n", ost_idx); + if (!lov->lov_tgts[ost_idx] || + !lov->lov_tgts[ost_idx]->ltd_active) + RETURN(rc); + + /* check if objects has been created on this ost */ + for (stripe = 0; stripe < lsm->lsm_stripe_count; stripe++) { + /* already have object at this stripe */ + if (ost_idx == lsm->lsm_oinfo[stripe]->loi_ost_idx) + break; + } + + if (stripe >= lsm->lsm_stripe_count) { + req->rq_idx = ost_idx; + rc = obd_create(lov->lov_tgts[ost_idx]->ltd_exp, + req->rq_oi.oi_oa, &req->rq_oi.oi_md, + oti); + } + RETURN(rc); +} + int qos_remedy_create(struct lov_request_set *set, struct lov_request *req) { struct lov_stripe_md *lsm = set->set_oi->oi_md; struct lov_obd *lov = &set->set_exp->exp_obd->u.lov; - unsigned ost_idx, ost_count = lov->desc.ld_tgt_count; - int stripe, i, rc = -EIO; + unsigned ost_idx = 0, ost_count; + struct pool_desc *pool; + struct ost_pool *osts = NULL; + int i, rc = -EIO; ENTRY; - ost_idx = (req->rq_idx + lsm->lsm_stripe_count) % ost_count; - for (i = 0; i < ost_count; i++, ost_idx = (ost_idx + 1) % ost_count) { - if (!lov->lov_tgts[ost_idx] || - !lov->lov_tgts[ost_idx]->ltd_active) - continue; - /* check if objects has been created on this ost */ - for (stripe = 0; stripe < lsm->lsm_stripe_count; stripe++) { - if (stripe == req->rq_stripe) - continue; - if (ost_idx == lsm->lsm_oinfo[stripe]->loi_ost_idx) + /* First check whether we can create the objects on the pool */ + pool = lov_find_pool(lov, lsm->lsm_pool_name); + if (pool != NULL) { + cfs_down_read(&pool_tgt_rw_sem(pool)); + osts = &(pool->pool_obds); + ost_count = osts->op_count; + for (i = 0; i < ost_count; i++, ost_idx = osts->op_array[i]) { + rc = lov_check_and_create_object(lov, ost_idx, lsm, req, + set->set_oti); + if (rc == 0) break; } + cfs_up_read(&pool_tgt_rw_sem(pool)); + lov_pool_putref(pool); + RETURN(rc); + } - if (stripe >= lsm->lsm_stripe_count) { - req->rq_idx = ost_idx; - rc = obd_create(lov->lov_tgts[ost_idx]->ltd_exp, - req->rq_oi.oi_oa, &req->rq_oi.oi_md, - set->set_oti); - if (!rc) - break; - } + ost_count = lov->desc.ld_tgt_count; + /* Then check whether we can create the objects on other OSTs */ + ost_idx = (req->rq_idx + lsm->lsm_stripe_count) % ost_count; + for (i = 0; i < ost_count; i++, ost_idx = (ost_idx + 1) % ost_count) { + rc = lov_check_and_create_object(lov, ost_idx, lsm, req, + set->set_oti); + + if (rc == 0) + break; } + RETURN(rc); } @@ -555,7 +599,7 @@ static int alloc_rr(struct lov_obd *lov, int *idx_arr, int *stripe_cnt, osts = &(lov->lov_packed); lqr = &(lov->lov_qos.lq_rr); } else { - down_read(&pool_tgt_rw_sem(pool)); + cfs_down_read(&pool_tgt_rw_sem(pool)); osts = &(pool->pool_obds); lqr = &(pool->pool_rr); } @@ -578,7 +622,7 @@ static int alloc_rr(struct lov_obd *lov, int *idx_arr, int *stripe_cnt, if (*stripe_cnt > 1 && (osts->op_count % (*stripe_cnt)) != 1) ++lqr->lqr_offset_idx; } - down_read(&lov->lov_qos.lq_rw_sem); + cfs_down_read(&lov->lov_qos.lq_rw_sem); ost_start_idx_temp = lqr->lqr_start_idx; repeat_find: @@ -628,12 +672,12 @@ repeat_find: goto repeat_find; } - up_read(&lov->lov_qos.lq_rw_sem); + cfs_up_read(&lov->lov_qos.lq_rw_sem); *stripe_cnt = idx_pos - idx_arr; out: if (pool != NULL) { - up_read(&pool_tgt_rw_sem(pool)); + cfs_up_read(&pool_tgt_rw_sem(pool)); /* put back ref got by lov_find_pool() */ lov_pool_putref(pool); } @@ -656,7 +700,7 @@ static int alloc_specific(struct lov_obd *lov, struct lov_stripe_md *lsm, if (pool == NULL) { osts = &(lov->lov_packed); } else { - down_read(&pool_tgt_rw_sem(pool)); + cfs_down_read(&pool_tgt_rw_sem(pool)); osts = &(pool->pool_obds); } @@ -725,7 +769,7 @@ repeat_find: rc = -EFBIG; out: if (pool != NULL) { - up_read(&pool_tgt_rw_sem(pool)); + cfs_up_read(&pool_tgt_rw_sem(pool)); /* put back ref got by lov_find_pool() */ lov_pool_putref(pool); } @@ -741,10 +785,8 @@ static int alloc_qos(struct obd_export *exp, int *idx_arr, int *stripe_cnt, char *poolname, int flags) { struct lov_obd *lov = &exp->exp_obd->u.lov; - static time_t last_warn = 0; - time_t now = cfs_time_current_sec(); - __u64 total_bavail, total_weight = 0; - int nfound, good_osts, i, warn = 0, rc = 0; + __u64 total_weight = 0; + int nfound, good_osts, i, rc = 0; int stripe_cnt_min = min_stripe_count(*stripe_cnt, flags); struct pool_desc *pool; struct ost_pool *osts; @@ -759,12 +801,12 @@ static int alloc_qos(struct obd_export *exp, int *idx_arr, int *stripe_cnt, osts = &(lov->lov_packed); lqr = &(lov->lov_qos.lq_rr); } else { - down_read(&pool_tgt_rw_sem(pool)); + cfs_down_read(&pool_tgt_rw_sem(pool)); osts = &(pool->pool_obds); lqr = &(pool->pool_rr); } - lov_getref(exp->exp_obd); + obd_getref(exp->exp_obd); /* wait for fresh statfs info if needed, the rpcs are sent in * lov_create() */ @@ -776,7 +818,7 @@ static int alloc_qos(struct obd_export *exp, int *idx_arr, int *stripe_cnt, GOTO(out_nolock, rc = -EAGAIN); /* Do actual allocation, use write lock here. */ - down_write(&lov->lov_qos.lq_rw_sem); + cfs_down_write(&lov->lov_qos.lq_rw_sem); /* * Check again, while we were sleeping on @lq_rw_sem things could @@ -792,35 +834,12 @@ static int alloc_qos(struct obd_export *exp, int *idx_arr, int *stripe_cnt, if (rc) GOTO(out, rc); - total_bavail = 0; good_osts = 0; - /* Warn users about zero available space/inode every 30 min */ - if (cfs_time_sub(now, last_warn) > 60 * 30) - warn = 1; /* Find all the OSTs that are valid stripe candidates */ for (i = 0; i < osts->op_count; i++) { - __u64 bavail; - if (!lov->lov_tgts[osts->op_array[i]] || !lov->lov_tgts[osts->op_array[i]]->ltd_active) continue; - bavail = TGT_BAVAIL(osts->op_array[i]); - if (!bavail) { - if (warn) { - CDEBUG(D_QOS, "no free space on %s\n", - obd_uuid2str(&lov->lov_tgts[osts->op_array[i]]->ltd_uuid)); - last_warn = now; - } - continue; - } - if (!TGT_FFREE(osts->op_array[i])) { - if (warn) { - CDEBUG(D_QOS, "no free inodes on %s\n", - obd_uuid2str(&lov->lov_tgts[osts->op_array[i]]->ltd_uuid)); - last_warn = now; - } - continue; - } /* Fail Check before osc_precreate() is called so we can only 'fail' single OSC. */ @@ -832,7 +851,6 @@ static int alloc_qos(struct obd_export *exp, int *idx_arr, int *stripe_cnt, lov->lov_tgts[osts->op_array[i]]->ltd_qos.ltq_usable = 1; qos_calc_weight(lov, osts->op_array[i]); - total_bavail += bavail; total_weight += lov->lov_tgts[osts->op_array[i]]->ltd_qos.ltq_weight; good_osts++; @@ -845,9 +863,6 @@ static int alloc_qos(struct obd_export *exp, int *idx_arr, int *stripe_cnt, if (good_osts < stripe_cnt_min) GOTO(out, rc = -EAGAIN); - if (!total_bavail) - GOTO(out, rc = -ENOSPC); - /* We have enough osts */ if (good_osts < *stripe_cnt) *stripe_cnt = good_osts; @@ -921,11 +936,11 @@ static int alloc_qos(struct obd_export *exp, int *idx_arr, int *stripe_cnt, LASSERT(nfound == *stripe_cnt); out: - up_write(&lov->lov_qos.lq_rw_sem); + cfs_up_write(&lov->lov_qos.lq_rw_sem); out_nolock: if (pool != NULL) { - up_read(&pool_tgt_rw_sem(pool)); + cfs_up_read(&pool_tgt_rw_sem(pool)); /* put back ref got by lov_find_pool() */ lov_pool_putref(pool); } @@ -933,7 +948,7 @@ out_nolock: if (rc == -EAGAIN) rc = alloc_rr(lov, idx_arr, stripe_cnt, poolname, flags); - lov_putref(exp->exp_obd); + obd_putref(exp->exp_obd); RETURN(rc); } @@ -1033,7 +1048,7 @@ int qos_prep_create(struct obd_export *exp, struct lov_request_set *set) lsm = set->set_oi->oi_md; lsm->lsm_object_id = src_oa->o_id; - lsm->lsm_object_gr = src_oa->o_gr; + lsm->lsm_object_seq = src_oa->o_seq; if (!lsm->lsm_stripe_size) lsm->lsm_stripe_size = lov->desc.ld_default_stripe_size; @@ -1071,6 +1086,7 @@ int qos_prep_create(struct obd_export *exp, struct lov_request_set *set) req->rq_stripe = i; /* create data objects with "parent" OA */ memcpy(req->rq_oi.oi_oa, src_oa, sizeof(*req->rq_oi.oi_oa)); + req->rq_oi.oi_cb_up = cb_create_update; /* XXX When we start creating objects on demand, we need to * make sure that we always create the object on the @@ -1088,6 +1104,10 @@ int qos_prep_create(struct obd_export *exp, struct lov_request_set *set) if (stripes < lsm->lsm_stripe_count) qos_shrink_lsm(set); + if (OBD_FAIL_CHECK(OBD_FAIL_MDS_LOV_PREP_CREATE)) { + qos_shrink_lsm(set); + rc = -EIO; + } if (oti && (src_oa->o_valid & OBD_MD_FLCOOKIE)) { oti_alloc_cookies(oti, set->set_count); @@ -1113,11 +1133,11 @@ void qos_update(struct lov_obd *lov) void qos_statfs_done(struct lov_obd *lov) { LASSERT(lov->lov_qos.lq_statfs_in_progress); - down_write(&lov->lov_qos.lq_rw_sem); + cfs_down_write(&lov->lov_qos.lq_rw_sem); lov->lov_qos.lq_statfs_in_progress = 0; /* wake up any threads waiting for the statfs rpcs to complete */ cfs_waitq_signal(&lov->lov_qos.lq_statfs_waitq); - up_write(&lov->lov_qos.lq_rw_sem); + cfs_up_write(&lov->lov_qos.lq_rw_sem); } static int qos_statfs_ready(struct obd_device *obd, __u64 max_age) @@ -1125,10 +1145,10 @@ static int qos_statfs_ready(struct obd_device *obd, __u64 max_age) struct lov_obd *lov = &obd->u.lov; int rc; ENTRY; - down_read(&lov->lov_qos.lq_rw_sem); + cfs_down_read(&lov->lov_qos.lq_rw_sem); rc = lov->lov_qos.lq_statfs_in_progress == 0 || cfs_time_beforeq_64(max_age, obd->obd_osfs_age); - up_read(&lov->lov_qos.lq_rw_sem); + cfs_up_read(&lov->lov_qos.lq_rw_sem); RETURN(rc); } @@ -1155,14 +1175,14 @@ void qos_statfs_update(struct obd_device *obd, __u64 max_age, int wait) /* statfs already in progress */ RETURN_EXIT; - down_write(&lov->lov_qos.lq_rw_sem); + cfs_down_write(&lov->lov_qos.lq_rw_sem); if (lov->lov_qos.lq_statfs_in_progress) { - up_write(&lov->lov_qos.lq_rw_sem); + cfs_up_write(&lov->lov_qos.lq_rw_sem); GOTO(out, rc = 0); } /* no statfs in flight, send rpcs */ lov->lov_qos.lq_statfs_in_progress = 1; - up_write(&lov->lov_qos.lq_rw_sem); + cfs_up_write(&lov->lov_qos.lq_rw_sem); if (wait) CDEBUG(D_QOS, "%s: did not manage to get fresh statfs data " @@ -1183,7 +1203,7 @@ void qos_statfs_update(struct obd_device *obd, __u64 max_age, int wait) GOTO(out_failed, rc = -ENOMEM); rc = obd_statfs_async(obd, oinfo, max_age, set); - if (rc || list_empty(&set->set_requests)) { + if (rc || cfs_list_empty(&set->set_requests)) { if (rc) CWARN("statfs failed with %d\n", rc); GOTO(out_failed, rc); @@ -1194,11 +1214,11 @@ void qos_statfs_update(struct obd_device *obd, __u64 max_age, int wait) GOTO(out, rc); out_failed: - down_write(&lov->lov_qos.lq_rw_sem); + cfs_down_write(&lov->lov_qos.lq_rw_sem); lov->lov_qos.lq_statfs_in_progress = 0; /* wake up any threads waiting for the statfs rpcs to complete */ cfs_waitq_signal(&lov->lov_qos.lq_statfs_waitq); - up_write(&lov->lov_qos.lq_rw_sem); + cfs_up_write(&lov->lov_qos.lq_rw_sem); wait = 0; out: if (set)