* 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.
*/
/*
}
EXPORT_SYMBOL(lprocfs_quota_rd_type);
-static int auto_quota_on(struct obd_device *obd, int type,
- struct super_block *sb, int is_master)
+/*
+ * generic_quota_on is very lazy and tolerant about current quota settings
+ * @global means to turn on quotas on each OST additionally to local quotas;
+ * should not be called from filter_quota_ctl on MDS nodes (as it starts
+ * admin quotas on MDS nodes).
+ */
+int generic_quota_on(struct obd_device *obd, struct obd_quotactl *oqctl, int global)
{
- struct obd_quotactl *oqctl;
- struct lvfs_run_ctxt saved;
- int rc = 0, rc1 = 0, id;
struct obd_device_target *obt = &obd->u.obt;
- struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt;
- struct mds_obd *mds = NULL;
- ENTRY;
-
- LASSERT(type == USRQUOTA || type == GRPQUOTA || type == UGQUOTA);
-
- OBD_ALLOC_PTR(oqctl);
- if (!oqctl)
- RETURN(-ENOMEM);
+ struct lvfs_run_ctxt saved;
+ int id, is_master, rc = 0, local; /* means we need a local quotaon */
cfs_down(&obt->obt_quotachecking);
- id = UGQUOTA2LQC(type);
- /* quota already turned on */
- if ((obt->obt_qctxt.lqc_flags & id) == id)
- GOTO(out, rc);
-
- if (obt->obt_qctxt.lqc_immutable) {
- LCONSOLE_ERROR("Failed to turn Quota on, immutable mode "
- "(is SOM enabled?)\n");
- GOTO(out, rc = -ECANCELED);
- }
+ push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
+ id = UGQUOTA2LQC(oqctl->qc_type);
+ local = (obt->obt_qctxt.lqc_flags & id) != id;
- oqctl->qc_type = type;
oqctl->qc_cmd = Q_QUOTAON;
oqctl->qc_id = obt->obt_qfmt;
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
+ is_master = !strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME);
if (is_master) {
- mds = &obd->u.mds;
- cfs_down(&mds->mds_qonoff_sem);
- /* turn on cluster wide quota */
- rc1 = mds_admin_quota_on(obd, oqctl);
- if (rc1 && rc1 != -EALREADY) {
- CDEBUG_LIMIT(rc1 == -ENOENT ? D_QUOTA : D_ERROR,
- "%s: auto-enable admin quota failed with "
- "rc=%d\n", obd->obd_name, rc1);
- GOTO(out_ctxt, rc1);
+ cfs_down_write(&obd->u.mds.mds_qonoff_sem);
+ if (local) {
+ /* turn on cluster wide quota */
+ rc = mds_admin_quota_on(obd, oqctl);
+ if (rc && rc != -ENOENT)
+ CERROR("%s: %s admin quotaon failed. rc=%d\n",
+ obd->obd_name, global ? "global":"local",
+ rc);
}
}
- /* turn on local quota */
- rc = fsfilt_quotactl(obd, sb, oqctl);
- if (!rc) {
- obt->obt_qctxt.lqc_flags |= UGQUOTA2LQC(type);
- build_lqs(obd);
- } else if (rc == -EBUSY && quota_is_on(qctxt, oqctl)) {
- CWARN("%s: mds local quota[%d] is on already\n",
- obd->obd_name, oqctl->qc_type);
- rc = -EALREADY;
- } else {
- CDEBUG_LIMIT(rc == -ENOENT ? D_QUOTA : D_ERROR,
- "%s: auto-enable local quota failed with rc=%d\n",
- obd->obd_name, rc);
- if (rc1 == -EALREADY) {
- oqctl->qc_cmd = Q_QUOTAOFF;
- mds_admin_quota_off(obd, oqctl);
+ if (rc == 0) {
+ if (local) {
+ rc = fsfilt_quotactl(obd, obt->obt_sb, oqctl);
+ if (rc) {
+ if (rc != -ENOENT)
+ CERROR("%s: %s quotaon failed with"
+ " rc=%d\n", obd->obd_name,
+ global ? "global" : "local", rc);
+ } else {
+ obt->obt_qctxt.lqc_flags |= UGQUOTA2LQC(oqctl->qc_type);
+ build_lqs(obd);
+ }
}
- if (rc == -ENOENT)
- CWARN("%s: quotaon failed because quota files don't "
- "exist, please run quotacheck firstly\n",
- obd->obd_name);
- GOTO(out_ctxt, rc);
+ if (rc == 0 && global && is_master)
+ rc = obd_quotactl(obd->u.mds.mds_lov_exp, oqctl);
}
- EXIT;
+ if (is_master)
+ cfs_up_write(&obd->u.mds.mds_qonoff_sem);
-out_ctxt:
- if (mds != NULL)
- cfs_up(&mds->mds_qonoff_sem);
pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
-out:
cfs_up(&obt->obt_quotachecking);
- OBD_FREE_PTR(oqctl);
+
+ CDEBUG(D_QUOTA, "%s: quotaon type:master:global:local:flags:rc "
+ "%u:%d:%d:%d:%lu:%d\n",
+ obd->obd_name, oqctl->qc_type, is_master, global, local,
+ obt->obt_qctxt.lqc_flags, rc);
+
return rc;
}
+static int auto_quota_on(struct obd_device *obd, int type)
+{
+ struct obd_quotactl *oqctl;
+ int rc;
+ ENTRY;
+
+ LASSERT(type == USRQUOTA || type == GRPQUOTA || type == UGQUOTA);
+
+ OBD_ALLOC_PTR(oqctl);
+ if (!oqctl)
+ RETURN(-ENOMEM);
+
+ oqctl->qc_type = type;
+
+ rc = generic_quota_on(obd, oqctl, 0);
+
+ OBD_FREE_PTR(oqctl);
+ RETURN(rc);
+}
+
int lprocfs_quota_wr_type(struct file *file, const char *buffer,
unsigned long count, void *data)
{
}
if (type != 0) {
- int rc = auto_quota_on(obd, type - 1, obt->obt_sb, is_mds);
+ int rc = auto_quota_on(obd, type - 1);
if (rc && rc != -EALREADY && rc != -ENOENT)
return rc;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff