Whamcloud - gitweb
Branch HEAD
[fs/lustre-release.git] / lustre / quota / quota_master.c
index 86f4b72..5ffdf8d 100644 (file)
@@ -1,17 +1,45 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
  *
- *  lustre/quota/quota_master.c
- *  Lustre Quota Master request handler
+ * GPL HEADER START
  *
- *  Copyright (c) 2001-2005 Cluster File Systems, Inc.
- *   Author: Niu YaWei <niu@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *   This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
  *
- *   No redistribution or use is permitted outside of Cluster File Systems, Inc.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
  *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
  */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/quota/quota_master.c
+ *
+ * Lustre Quota Master request handler
+ *
+ * Author: Niu YaWei <niu@clusterfs.com>
+ */
+
 #ifndef EXPORT_SYMTAB
 # define EXPORT_SYMTAB
 #endif
@@ -39,7 +67,7 @@
 static struct list_head lustre_dquot_hash[NR_DQHASH];
 static spinlock_t dquot_hash_lock = SPIN_LOCK_UNLOCKED;
 
-kmem_cache_t *lustre_dquot_cachep;
+cfs_mem_cache_t *lustre_dquot_cachep;
 
 int lustre_dquot_init(void)
 {
@@ -47,14 +75,14 @@ int lustre_dquot_init(void)
         ENTRY;
 
         LASSERT(lustre_dquot_cachep == NULL);
-        lustre_dquot_cachep = kmem_cache_create("lustre_dquot_cache",
-                                                sizeof(struct lustre_dquot),
-                                                0, 0, NULL, NULL);
+        lustre_dquot_cachep = cfs_mem_cache_create("lustre_dquot_cache",
+                                                   sizeof(struct lustre_dquot),
+                                                   0, 0);
         if (!lustre_dquot_cachep)
                 return (-ENOMEM);
 
         for (i = 0; i < NR_DQHASH; i++) {
-                INIT_LIST_HEAD(lustre_dquot_hash + i);
+                CFS_INIT_LIST_HEAD(lustre_dquot_hash + i);
         }
         RETURN(0);
 }
@@ -69,13 +97,9 @@ void lustre_dquot_exit(void)
                 LASSERT(list_empty(lustre_dquot_hash + i));
         }
         if (lustre_dquot_cachep) {
-#ifdef HAVE_KMEM_CACHE_DESTROY_INT
                 int rc;
-                rc = kmem_cache_destroy(lustre_dquot_cachep);
+                rc = cfs_mem_cache_destroy(lustre_dquot_cachep);
                 LASSERTF(rc == 0,"couldn't destroy lustre_dquot_cachep slab\n");
-#else
-                kmem_cache_destroy(lustre_dquot_cachep);
-#endif
                 lustre_dquot_cachep = NULL;
         }
         EXIT;
@@ -116,11 +140,11 @@ static struct lustre_dquot *alloc_dquot(struct lustre_quota_info *lqi,
         struct lustre_dquot *dquot = NULL;
         ENTRY;
 
-        OBD_SLAB_ALLOC(dquot, lustre_dquot_cachep, SLAB_NOFS, sizeof(*dquot));
+        OBD_SLAB_ALLOC(dquot, lustre_dquot_cachep, CFS_ALLOC_IO, sizeof(*dquot));
         if (dquot == NULL)
                 RETURN(NULL);
 
-        INIT_LIST_HEAD(&dquot->dq_hash);
+        CFS_INIT_LIST_HEAD(&dquot->dq_hash);
         init_mutex_locked(&dquot->dq_sem);
         dquot->dq_refcnt = 1;
         dquot->dq_info = lqi;
@@ -216,10 +240,8 @@ int dqacq_handler(struct obd_device *obd, struct qunit_data *qdata, int opc)
         int rc = 0;
         ENTRY;
 
-        OBD_FAIL_RETURN(OBD_FAIL_OBD_DQACQ, -EIO);
-
-        /* slaves never acquires qunit for user root */
-        LASSERT(qdata->qd_id || qdata_type);
+        if (OBD_FAIL_CHECK(OBD_FAIL_OBD_DQACQ))
+                RETURN(-EIO);
 
         dquot = lustre_dqget(obd, info, qdata->qd_id, qdata_type);
         if (IS_ERR(dquot))
@@ -305,7 +327,7 @@ int mds_quota_adjust(struct obd_device *obd, unsigned int qcids[],
         int rc2 = 0;
         ENTRY;
 
-        if (rc && rc != -EDQUOT && rc != ENOLCK)
+        if (rc && rc != -EDQUOT)
                 RETURN(0);
 
         switch (opc) {
@@ -655,31 +677,32 @@ static int mds_init_slave_ilimits(struct obd_device *obd,
         /* XXX: for file limits only adjust local now */
         unsigned int uid = 0, gid = 0;
         struct obd_quotactl *ioqc = NULL;
+        int flag;
         int rc;
         ENTRY;
 
         /* if we are going to set zero limit, needn't init slaves */
-        if (!oqctl->qc_dqblk.dqb_ihardlimit && !oqctl->qc_dqblk.dqb_isoftlimit)
+        if (!oqctl->qc_dqblk.dqb_ihardlimit && !oqctl->qc_dqblk.dqb_isoftlimit &&
+            set)
                 RETURN(0);
-        
-        if (!set)
-                goto acquire;
 
         OBD_ALLOC_PTR(ioqc);
         if (!ioqc)
                 RETURN(-ENOMEM);
-
-        ioqc->qc_cmd = Q_INITQUOTA;
+        
+        flag = oqctl->qc_dqblk.dqb_ihardlimit || 
+               oqctl->qc_dqblk.dqb_isoftlimit || set;
+        ioqc->qc_cmd = flag ? Q_INITQUOTA : Q_SETQUOTA;
         ioqc->qc_id = oqctl->qc_id;
         ioqc->qc_type = oqctl->qc_type;
         ioqc->qc_dqblk.dqb_valid = QIF_ILIMITS;
-        ioqc->qc_dqblk.dqb_ihardlimit = MIN_QLIMIT;
+        ioqc->qc_dqblk.dqb_ihardlimit = flag ? MIN_QLIMIT : 0;
 
         /* set local limit to MIN_QLIMIT */
         rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, ioqc);
         if (rc)
                 GOTO(out, rc);
-acquire:
+
         /* trigger local qunit pre-acquire */
         if (oqctl->qc_type == USRQUOTA)
                 uid = oqctl->qc_id;
@@ -705,29 +728,30 @@ static int mds_init_slave_blimits(struct obd_device *obd,
         struct mds_obd *mds = &obd->u.mds;
         struct obd_quotactl *ioqc;
         unsigned int uid = 0, gid = 0;
+        int flag;
         int rc;
         ENTRY;
 
         /* if we are going to set zero limit, needn't init slaves */
-        if (!oqctl->qc_dqblk.dqb_bhardlimit && !oqctl->qc_dqblk.dqb_bsoftlimit)
+        if (!oqctl->qc_dqblk.dqb_bhardlimit && !oqctl->qc_dqblk.dqb_bsoftlimit &&
+            set)
                 RETURN(0);
 
         OBD_ALLOC_PTR(ioqc);
         if (!ioqc)
                 RETURN(-ENOMEM);
 
-        ioqc->qc_cmd = Q_INITQUOTA;
+        flag = oqctl->qc_dqblk.dqb_bhardlimit || 
+               oqctl->qc_dqblk.dqb_bsoftlimit || set;
+        ioqc->qc_cmd = flag ? Q_INITQUOTA : Q_SETQUOTA;
         ioqc->qc_id = oqctl->qc_id;
         ioqc->qc_type = oqctl->qc_type;
         ioqc->qc_dqblk.dqb_valid = QIF_BLIMITS;
-        ioqc->qc_dqblk.dqb_bhardlimit = set ? MIN_QLIMIT : 0;
+        ioqc->qc_dqblk.dqb_bhardlimit = flag ? MIN_QLIMIT : 0;
 
-        /* set local limit to MIN_QLIMIT */
-        if (set) {
-                rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, ioqc);
-                if (rc)
-                        GOTO(out, rc);
-        }
+        rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, ioqc);
+        if (rc)
+                GOTO(out, rc);
 
         /* trigger local qunit pre-acquire */
         if (oqctl->qc_type == USRQUOTA)
@@ -1069,7 +1093,7 @@ static int qmaster_recovery_main(void *arg)
                         up(&mds->mds_qonoff_sem);
                         continue;
                 }
-                INIT_LIST_HEAD(&id_list);
+                CFS_INIT_LIST_HEAD(&id_list);
                 rc = fsfilt_qids(obd, qinfo->qi_files[type], NULL, type, 
                                  &id_list);
                 up(&mds->mds_qonoff_sem);