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re #13613 rb4516 Tunables needs volatile keyword


   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright (c) 1986, 2010, Oracle and/or its affiliates. All rights reserved.

  23  */
  24 
  25 /*
  26  *      Copyright (c) 1983,1984,1985,1986,1987,1988,1989  AT&T.
  27  *      All rights reserved.
  28  */
  29 
  30 #include <sys/param.h>
  31 #include <sys/types.h>
  32 #include <sys/systm.h>
  33 #include <sys/cred.h>
  34 #include <sys/vfs.h>
  35 #include <sys/vfs_opreg.h>
  36 #include <sys/vnode.h>
  37 #include <sys/pathname.h>
  38 #include <sys/sysmacros.h>
  39 #include <sys/kmem.h>
  40 #include <sys/mkdev.h>
  41 #include <sys/mount.h>
  42 #include <sys/mntent.h>


 983                         if (mi->mi_ro_kstats) {
 984                                 kstat_delete(mi->mi_ro_kstats);
 985                                 mi->mi_ro_kstats = NULL;
 986                         }
 987                         nfs_free_mi(mi);
 988                 }
 989         }
 990 
 991 
 992         if (!(uap->flags & MS_SYSSPACE)) {
 993                 nfs3_free_args(args, fhandle);
 994                 kmem_free(args, sizeof (*args));
 995         }
 996 
 997         if (mntzone != NULL)
 998                 zone_rele(mntzone);
 999 
1000         return (error);
1001 }
1002 
1003 static int nfs3_dynamic = 0;    /* global variable to enable dynamic retrans. */
1004 static ushort_t nfs3_max_threads = 8;   /* max number of active async threads */
1005 uint_t nfs3_bsize = 32 * 1024;  /* client `block' size */
1006 static uint_t nfs3_async_clusters = 1;  /* # of reqs from each async queue */
1007 static uint_t nfs3_cots_timeo = NFS_COTS_TIMEO;
1008 
1009 static int
1010 nfs3rootvp(vnode_t **rtvpp, vfs_t *vfsp, struct servinfo *svp,
1011         int flags, cred_t *cr, zone_t *zone)
1012 {
1013         vnode_t *rtvp;
1014         mntinfo_t *mi;
1015         dev_t nfs_dev;
1016         struct vattr va;
1017         struct FSINFO3args args;
1018         struct FSINFO3res res;
1019         int error;
1020         int douprintf;
1021         rnode_t *rp;
1022         int i;
1023         uint_t max_transfer_size;
1024         struct nfs_stats *nfsstatsp;
1025         cred_t *lcr = NULL, *tcr = cr;
1026 
1027         nfsstatsp = zone_getspecific(nfsstat_zone_key, nfs_zone());




   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright (c) 1986, 2010, Oracle and/or its affiliates. All rights reserved.
  23  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 
  26 /*
  27  *      Copyright (c) 1983,1984,1985,1986,1987,1988,1989  AT&T.
  28  *      All rights reserved.
  29  */
  30 
  31 #include <sys/param.h>
  32 #include <sys/types.h>
  33 #include <sys/systm.h>
  34 #include <sys/cred.h>
  35 #include <sys/vfs.h>
  36 #include <sys/vfs_opreg.h>
  37 #include <sys/vnode.h>
  38 #include <sys/pathname.h>
  39 #include <sys/sysmacros.h>
  40 #include <sys/kmem.h>
  41 #include <sys/mkdev.h>
  42 #include <sys/mount.h>
  43 #include <sys/mntent.h>


 984                         if (mi->mi_ro_kstats) {
 985                                 kstat_delete(mi->mi_ro_kstats);
 986                                 mi->mi_ro_kstats = NULL;
 987                         }
 988                         nfs_free_mi(mi);
 989                 }
 990         }
 991 
 992 
 993         if (!(uap->flags & MS_SYSSPACE)) {
 994                 nfs3_free_args(args, fhandle);
 995                 kmem_free(args, sizeof (*args));
 996         }
 997 
 998         if (mntzone != NULL)
 999                 zone_rele(mntzone);
1000 
1001         return (error);
1002 }
1003 
1004 volatile int nfs3_dynamic = 0;  /* global variable to enable dynamic retrans. */
1005 volatile ushort_t nfs3_max_threads = 8; /* max number of active async threads */
1006 volatile uint_t nfs3_bsize = 32 * 1024; /* client `block' size */
1007 volatile uint_t nfs3_async_clusters = 1; /* # of reqs from each async queue */
1008 volatile uint_t nfs3_cots_timeo = NFS_COTS_TIMEO;
1009 
1010 static int
1011 nfs3rootvp(vnode_t **rtvpp, vfs_t *vfsp, struct servinfo *svp,
1012         int flags, cred_t *cr, zone_t *zone)
1013 {
1014         vnode_t *rtvp;
1015         mntinfo_t *mi;
1016         dev_t nfs_dev;
1017         struct vattr va;
1018         struct FSINFO3args args;
1019         struct FSINFO3res res;
1020         int error;
1021         int douprintf;
1022         rnode_t *rp;
1023         int i;
1024         uint_t max_transfer_size;
1025         struct nfs_stats *nfsstatsp;
1026         cred_t *lcr = NULL, *tcr = cr;
1027 
1028         nfsstatsp = zone_getspecific(nfsstat_zone_key, nfs_zone());