-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
+
#define DEBUG_SUBSYSTEM S_LQUOTA
#ifdef __KERNEL__
# include <linux/fs.h>
# include <linux/jbd.h>
# include <linux/quota.h>
-# include <linux/smp_lock.h>
# include <linux/buffer_head.h>
# include <linux/workqueue.h>
# include <linux/mount.h>
#include <obd_ost.h>
#include <lustre_fsfilt.h>
#include <linux/lustre_quota.h>
-#include <class_hash.h>
#include "quota_internal.h"
-#ifdef HAVE_QUOTA_SUPPORT
-
#ifdef __KERNEL__
/**
* This function is charge of recording lqs_ino_rec and
* is_acq: whether it is acquiring; otherwise, it is releasing
*/
void quota_compute_lqs(struct qunit_data *qdata, struct lustre_qunit_size *lqs,
- int is_chk, int is_acq)
+ int is_chk, int is_acq)
{
- int is_blk;
+ long long *rec;
LASSERT(qdata && lqs);
LASSERT_SPIN_LOCKED(&lqs->lqs_lock);
- is_blk = QDATA_IS_BLK(qdata);
-
- if (is_chk) {
- if (is_acq) {
- if (is_blk)
- lqs->lqs_blk_rec += qdata->qd_count;
- else
- lqs->lqs_ino_rec += qdata->qd_count;
- } else {
- if (is_blk)
- lqs->lqs_blk_rec -= qdata->qd_count;
- else
- lqs->lqs_ino_rec -= qdata->qd_count;
- }
- } else {
- if (is_acq) {
- if (is_blk)
- lqs->lqs_blk_rec -= qdata->qd_count;
- else
- lqs->lqs_ino_rec -= qdata->qd_count;
- } else {
- if (is_blk)
- lqs->lqs_blk_rec += qdata->qd_count;
- else
- lqs->lqs_ino_rec += qdata->qd_count;
- }
- }
-}
-void qdata_to_oqaq(struct qunit_data *qdata, struct quota_adjust_qunit *oqaq)
-{
- LASSERT(qdata);
- LASSERT(oqaq);
+ rec = QDATA_IS_BLK(qdata) ? &lqs->lqs_blk_rec : &lqs->lqs_ino_rec;
+
+ if (!!is_chk + !!is_acq == 1)
+ *rec -= qdata->qd_count;
+ else
+ *rec += qdata->qd_count;
- oqaq->qaq_flags = qdata->qd_flags;
- oqaq->qaq_id = qdata->qd_id;
- if (QDATA_IS_ADJBLK(qdata))
- oqaq->qaq_bunit_sz = qdata->qd_qunit;
- if (QDATA_IS_ADJINO(qdata))
- oqaq->qaq_iunit_sz = qdata->qd_qunit;
}
-int quota_search_lqs(struct qunit_data *qdata, struct quota_adjust_qunit *oqaq,
- struct lustre_quota_ctxt *qctxt,
- struct lustre_qunit_size **lqs_return)
+struct lustre_qunit_size *quota_search_lqs(unsigned long long lqs_key,
+ struct lustre_quota_ctxt *qctxt,
+ int create)
{
- struct quota_adjust_qunit *oqaq_tmp = NULL;
- ENTRY;
+ struct lustre_qunit_size *lqs;
+ struct lustre_qunit_size *lqs2;
+ cfs_hash_t *hs = NULL;
+ int rc = 0;
- LASSERT(*lqs_return == NULL);
- LASSERT(oqaq || qdata);
+ cfs_spin_lock(&qctxt->lqc_lock);
+ if (qctxt->lqc_valid) {
+ LASSERT(qctxt->lqc_lqs_hash != NULL);
+ hs = cfs_hash_getref(qctxt->lqc_lqs_hash);
+ }
+ cfs_spin_unlock(&qctxt->lqc_lock);
- if (!oqaq) {
- OBD_ALLOC_PTR(oqaq_tmp);
- if (!oqaq_tmp)
- RETURN(-ENOMEM);
- qdata_to_oqaq(qdata, oqaq_tmp);
- } else {
- oqaq_tmp = oqaq;
+ if (hs == NULL) {
+ rc = -EBUSY;
+ goto out;
}
- *lqs_return = lustre_hash_lookup(qctxt->lqc_lqs_hash, oqaq_tmp);
- if (*lqs_return)
- LQS_DEBUG((*lqs_return), "show lqs\n");
+ /* cfs_hash_lookup will +1 refcount for caller */
+ lqs = cfs_hash_lookup(qctxt->lqc_lqs_hash, &lqs_key);
+ if (lqs != NULL) /* found */
+ goto out_put;
- if (!oqaq)
- OBD_FREE_PTR(oqaq_tmp);
- RETURN(0);
-}
-
-int quota_create_lqs(struct qunit_data *qdata, struct quota_adjust_qunit *oqaq,
- struct lustre_quota_ctxt *qctxt,
- struct lustre_qunit_size **lqs_return)
-{
- struct lustre_qunit_size *lqs = NULL;
- int rc = 0;
- ENTRY;
-
- LASSERT(*lqs_return == NULL);
- LASSERT(oqaq || qdata);
+ if (!create)
+ goto out_put;
OBD_ALLOC_PTR(lqs);
- if (!lqs)
- GOTO(out, rc = -ENOMEM);
+ if (!lqs) {
+ rc = -ENOMEM;
+ goto out_put;
+ }
- if (!oqaq)
- qdata_to_oqaq(qdata, &lqs->lqs_key);
- else
- lqs->lqs_key = *oqaq;
+ lqs->lqs_key = lqs_key;
+
+ cfs_spin_lock_init(&lqs->lqs_lock);
- spin_lock_init(&lqs->lqs_lock);
lqs->lqs_bwrite_pending = 0;
lqs->lqs_iwrite_pending = 0;
lqs->lqs_ino_rec = 0;
lqs->lqs_blk_rec = 0;
- lqs->lqs_id = lqs->lqs_key.qaq_id;
- lqs->lqs_flags = QAQ_IS_GRP(&lqs->lqs_key);
+ lqs->lqs_id = LQS_KEY_ID(lqs->lqs_key);
+ lqs->lqs_flags = LQS_KEY_GRP(lqs->lqs_key) ? LQUOTA_FLAGS_GRP : 0;
lqs->lqs_bunit_sz = qctxt->lqc_bunit_sz;
lqs->lqs_iunit_sz = qctxt->lqc_iunit_sz;
lqs->lqs_btune_sz = qctxt->lqc_btune_sz;
lqs->lqs_itune_sz = qctxt->lqc_itune_sz;
- lqs->lqs_ctxt = qctxt;
if (qctxt->lqc_handler) {
lqs->lqs_last_bshrink = 0;
lqs->lqs_last_ishrink = 0;
}
- lqs_initref(lqs);
- rc = lustre_hash_add_unique(qctxt->lqc_lqs_hash,
- &lqs->lqs_key, &lqs->lqs_hash);
- LQS_DEBUG(lqs, "create lqs\n");
- if (!rc) {
- lqs_getref(lqs);
- *lqs_return = lqs;
+
+ lqs->lqs_ctxt = qctxt; /* must be called before lqs_initref */
+ cfs_atomic_set(&lqs->lqs_refcount, 1); /* 1 for caller */
+ cfs_atomic_inc(&lqs->lqs_ctxt->lqc_lqs);
+
+ /* lqc_lqs_hash will take +1 refcount on lqs on adding */
+ lqs2 = cfs_hash_findadd_unique(qctxt->lqc_lqs_hash,
+ &lqs->lqs_key, &lqs->lqs_hash);
+ if (lqs2 == lqs) /* added to hash */
+ goto out_put;
+
+ create = 0;
+ lqs_putref(lqs);
+ lqs = lqs2;
+
+ out_put:
+ cfs_hash_putref(hs);
+ out:
+ if (rc != 0) { /* error */
+ CERROR("get lqs error(rc: %d)\n", rc);
+ return ERR_PTR(rc);
}
-out:
- if (rc && lqs)
- OBD_FREE_PTR(lqs);
- RETURN(rc);
+
+ if (lqs != NULL) {
+ LQS_DEBUG(lqs, "%s\n",
+ (create == 1 ? "create lqs" : "search lqs"));
+ }
+ return lqs;
}
int quota_adjust_slave_lqs(struct quota_adjust_qunit *oqaq,
struct lustre_quota_ctxt *qctxt)
{
struct lustre_qunit_size *lqs = NULL;
- unsigned long *lbunit, *liunit, *lbtune, *litune;
- signed long b_tmp = 0, i_tmp = 0;
- cfs_time_t time_limit = 0;
- int rc = 0;
+ unsigned long *unit, *tune;
+ signed long tmp = 0;
+ cfs_time_t time_limit = 0, *shrink;
+ int i, rc = 0;
ENTRY;
LASSERT(qctxt);
-search_lqs:
- rc = quota_search_lqs(NULL, oqaq, qctxt, &lqs);
-
- /* deleting the lqs, because a user sets lfs quota 0 0 0 0 */
- if (!oqaq->qaq_bunit_sz && !oqaq->qaq_iunit_sz && QAQ_IS_ADJBLK(oqaq) &&
- QAQ_IS_ADJINO(oqaq)) {
- if (lqs) {
- LQS_DEBUG(lqs, "release lqs\n");
- /* this is for quota_search_lqs */
- lqs_putref(lqs);
- /* kill lqs */
- lqs_putref(lqs);
- }
- RETURN(rc);
+ lqs = quota_search_lqs(LQS_KEY(QAQ_IS_GRP(oqaq), oqaq->qaq_id),
+ qctxt, QAQ_IS_CREATE_LQS(oqaq) ? 1 : 0);
+ if (lqs == NULL || IS_ERR(lqs)){
+ CERROR("fail to find a lqs for %sid %u!\n",
+ QAQ_IS_GRP(oqaq) ? "g" : "u", oqaq->qaq_id);
+ RETURN(PTR_ERR(lqs));
}
- if (!lqs) {
- rc = quota_create_lqs(NULL, oqaq, qctxt, &lqs);
- if (rc == -EALREADY)
- goto search_lqs;
- if (rc < 0)
- RETURN(rc);
- }
+ CDEBUG(D_QUOTA, "before: bunit: %lu, iunit: %lu.\n",
+ lqs->lqs_bunit_sz, lqs->lqs_iunit_sz);
+ cfs_spin_lock(&lqs->lqs_lock);
+ for (i = 0; i < 2; i++) {
+ if (i == 0 && !QAQ_IS_ADJBLK(oqaq))
+ continue;
+
+ if (i == 1 && !QAQ_IS_ADJINO(oqaq))
+ continue;
- lbunit = &lqs->lqs_bunit_sz;
- liunit = &lqs->lqs_iunit_sz;
- lbtune = &lqs->lqs_btune_sz;
- litune = &lqs->lqs_itune_sz;
-
- CDEBUG(D_QUOTA, "before: bunit: %lu, iunit: %lu.\n", *lbunit, *liunit);
- spin_lock(&lqs->lqs_lock);
- /* adjust the slave's block qunit size */
- if (QAQ_IS_ADJBLK(oqaq)) {
- cfs_duration_t sec = cfs_time_seconds(qctxt->lqc_switch_seconds);
-
- b_tmp = *lbunit - oqaq->qaq_bunit_sz;
-
- if (qctxt->lqc_handler && b_tmp > 0)
- lqs->lqs_last_bshrink = cfs_time_current();
-
- if (qctxt->lqc_handler && b_tmp < 0) {
- time_limit = cfs_time_add(lqs->lqs_last_bshrink, sec);
- if (!lqs->lqs_last_bshrink ||
- cfs_time_after(cfs_time_current(), time_limit)) {
- *lbunit = oqaq->qaq_bunit_sz;
- *lbtune = (*lbunit) / 2;
- } else {
- b_tmp = 0;
- }
- } else {
- *lbunit = oqaq->qaq_bunit_sz;
- *lbtune = (*lbunit) / 2;
+ tmp = i ? (lqs->lqs_iunit_sz - oqaq->qaq_iunit_sz) :
+ (lqs->lqs_bunit_sz - oqaq->qaq_bunit_sz);
+ shrink = i ? &lqs->lqs_last_ishrink :
+ &lqs->lqs_last_bshrink;
+ time_limit = cfs_time_add(i ? lqs->lqs_last_ishrink :
+ lqs->lqs_last_bshrink,
+ cfs_time_seconds(qctxt->lqc_switch_seconds));
+ unit = i ? &lqs->lqs_iunit_sz : &lqs->lqs_bunit_sz;
+ tune = i ? &lqs->lqs_itune_sz : &lqs->lqs_btune_sz;
+
+ /* quota master shrinks */
+ if (qctxt->lqc_handler && tmp > 0)
+ *shrink = cfs_time_current();
+
+ /* quota master enlarges */
+ if (qctxt->lqc_handler && tmp < 0) {
+ /* in case of ping-pong effect, don't enlarge lqs
+ * in a short time */
+ if (*shrink &&
+ cfs_time_before(cfs_time_current(), time_limit))
+ tmp = 0;
}
- }
- /* adjust the slave's file qunit size */
- if (QAQ_IS_ADJINO(oqaq)) {
- i_tmp = *liunit - oqaq->qaq_iunit_sz;
-
- if (qctxt->lqc_handler && i_tmp > 0)
- lqs->lqs_last_ishrink = cfs_time_current();
-
- if (qctxt->lqc_handler && i_tmp < 0) {
- time_limit = cfs_time_add(lqs->lqs_last_ishrink,
- cfs_time_seconds(qctxt->
- lqc_switch_seconds));
- if (!lqs->lqs_last_ishrink ||
- cfs_time_after(cfs_time_current(), time_limit)) {
- *liunit = oqaq->qaq_iunit_sz;
- *litune = (*liunit) / 2;
- } else {
- i_tmp = 0;
- }
- } else {
- *liunit = oqaq->qaq_iunit_sz;
- *litune = (*liunit) / 2;
+ /* when setquota, don't enlarge lqs b=18616 */
+ if (QAQ_IS_CREATE_LQS(oqaq) && tmp < 0)
+ tmp = 0;
+
+ if (tmp != 0) {
+ *unit = i ? oqaq->qaq_iunit_sz : oqaq->qaq_bunit_sz;
+ *tune = (*unit) / 2;
}
- }
- spin_unlock(&lqs->lqs_lock);
- CDEBUG(D_QUOTA, "after: bunit: %lu, iunit: %lu.\n", *lbunit, *liunit);
- lqs_putref(lqs);
- if (b_tmp > 0)
- rc |= LQS_BLK_DECREASE;
- else if (b_tmp < 0)
- rc |= LQS_BLK_INCREASE;
+ if (tmp > 0)
+ rc |= i ? LQS_INO_DECREASE : LQS_BLK_DECREASE;
+ if (tmp < 0)
+ rc |= i ? LQS_INO_INCREASE : LQS_BLK_INCREASE;
+ }
+ cfs_spin_unlock(&lqs->lqs_lock);
+ CDEBUG(D_QUOTA, "after: bunit: %lu, iunit: %lu.\n",
+ lqs->lqs_bunit_sz, lqs->lqs_iunit_sz);
- if (i_tmp > 0)
- rc |= LQS_INO_DECREASE;
- else if (i_tmp < 0)
- rc |= LQS_INO_INCREASE;
+ lqs_putref(lqs);
RETURN(rc);
}
int filter_quota_adjust_qunit(struct obd_export *exp,
struct quota_adjust_qunit *oqaq,
- struct lustre_quota_ctxt *qctxt)
+ struct lustre_quota_ctxt *qctxt,
+ struct ptlrpc_request_set *rqset)
{
struct obd_device *obd = exp->exp_obd;
- unsigned int uid = 0, gid = 0;
+ unsigned int id[MAXQUOTAS] = { 0, 0 };
int rc = 0;
ENTRY;
RETURN(rc);
}
if (QAQ_IS_GRP(oqaq))
- gid = oqaq->qaq_id;
+ id[GRPQUOTA] = oqaq->qaq_id;
else
- uid = oqaq->qaq_id;
+ id[USRQUOTA] = oqaq->qaq_id;
if (rc > 0) {
- rc = qctxt_adjust_qunit(obd, qctxt, uid, gid, 1, 0, NULL);
+ rc = qctxt_adjust_qunit(obd, qctxt, id, 1, 0, NULL);
if (rc == -EDQUOT || rc == -EBUSY ||
rc == QUOTA_REQ_RETURNED || rc == -EAGAIN) {
CDEBUG(D_QUOTA, "rc: %d.\n", rc);
RETURN(rc);
}
#endif /* __KERNEL__ */
-#endif
-
-int client_quota_adjust_qunit(struct obd_export *exp,
- struct quota_adjust_qunit *oqaq,
- struct lustre_quota_ctxt *qctxt)
-{
- struct ptlrpc_request *req;
- struct quota_adjust_qunit *oqa;
- int rc = 0;
- ENTRY;
-
- /* client don't support this kind of operation, abort it */
- if (!(exp->exp_connect_flags & OBD_CONNECT_CHANGE_QS)) {
- CDEBUG(D_QUOTA, "osc: %s don't support change qunit size\n",
- exp->exp_obd->obd_name);
- RETURN(rc);
- }
- if (strcmp(exp->exp_obd->obd_type->typ_name, LUSTRE_OSC_NAME))
- RETURN(-EINVAL);
-
- req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
- &RQF_OST_QUOTA_ADJUST_QUNIT,
- LUSTRE_OST_VERSION,
- OST_QUOTA_ADJUST_QUNIT);
- if (req == NULL)
- RETURN(-ENOMEM);
-
- oqa = req_capsule_client_get(&req->rq_pill, &RMF_QUOTA_ADJUST_QUNIT);
- *oqa = *oqaq;
-
- ptlrpc_request_set_replen(req);
-
- rc = ptlrpc_queue_wait(req);
- if (rc)
- CERROR("%s: %s failed: rc = %d\n", exp->exp_obd->obd_name,
- __FUNCTION__, rc);
- ptlrpc_req_finished(req);
- RETURN (rc);
-}
-
-int lov_quota_adjust_qunit(struct obd_export *exp,
- struct quota_adjust_qunit *oqaq,
- struct lustre_quota_ctxt *qctxt)
-{
- struct obd_device *obd = class_exp2obd(exp);
- struct lov_obd *lov = &obd->u.lov;
- int i, rc = 0;
- ENTRY;
-
- if (!QAQ_IS_ADJBLK(oqaq)) {
- CERROR("bad qaq_flags %x for lov obd.\n", oqaq->qaq_flags);
- RETURN(-EFAULT);
- }
-
- for (i = 0; i < lov->desc.ld_tgt_count; i++) {
- int err;
-
- if (!lov->lov_tgts[i]->ltd_active) {
- CDEBUG(D_HA, "ost %d is inactive\n", i);
- continue;
- }
-
- err = obd_quota_adjust_qunit(lov->lov_tgts[i]->ltd_exp, oqaq,
- NULL);
- if (err) {
- if (lov->lov_tgts[i]->ltd_active && !rc)
- rc = err;
- continue;
- }
- }
- RETURN(rc);
-}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff