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5880 Increase IOV_MAX to at least 1024
Portions contributed by: Jerry Jelinek <jerry.jelinek@joyent.com>


   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 /*
  23  * Copyright (c) 1995, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Copyright 2016 Nexenta Systems, Inc.  All rights reserved.
  25  * Copyright 2019 OmniOS Community Edition (OmniOSce) Association.

  26  */
  27 
  28 #include <sys/types.h>
  29 #include <sys/t_lock.h>
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/buf.h>
  33 #include <sys/conf.h>
  34 #include <sys/cred.h>
  35 #include <sys/kmem.h>
  36 #include <sys/sysmacros.h>
  37 #include <sys/vfs.h>
  38 #include <sys/vfs_opreg.h>
  39 #include <sys/vnode.h>
  40 #include <sys/debug.h>
  41 #include <sys/errno.h>
  42 #include <sys/time.h>
  43 #include <sys/file.h>
  44 #include <sys/open.h>
  45 #include <sys/user.h>


1870                     sizeof (psi->si_son_straddr), "%p", (void *)so);
1871                 (void) snprintf(psi->si_lvn_straddr,
1872                     sizeof (psi->si_lvn_straddr), "%p",
1873                     (void *)sti->sti_ux_laddr.soua_vp);
1874                 (void) snprintf(psi->si_fvn_straddr,
1875                     sizeof (psi->si_fvn_straddr), "%p",
1876                     (void *)sti->sti_ux_faddr.soua_vp);
1877 
1878                 ns++;
1879                 psi++;
1880         }
1881 
1882         ksp->ks_ndata = ns;
1883         return (0);
1884 }
1885 
1886 ssize_t
1887 soreadfile(file_t *fp, uchar_t *buf, u_offset_t fileoff, int *err, size_t size)
1888 {
1889         struct uio auio;
1890         struct iovec aiov[MSG_MAXIOVLEN];
1891         register vnode_t *vp;
1892         int ioflag, rwflag;
1893         ssize_t cnt;
1894         int error = 0;
1895         int iovcnt = 0;
1896         short fflag;
1897 
1898         vp = fp->f_vnode;
1899         fflag = fp->f_flag;
1900 
1901         rwflag = 0;
1902         aiov[0].iov_base = (caddr_t)buf;
1903         aiov[0].iov_len = size;
1904         iovcnt = 1;
1905         cnt = (ssize_t)size;
1906         (void) VOP_RWLOCK(vp, rwflag, NULL);
1907 
1908         auio.uio_loffset = fileoff;
1909         auio.uio_iov = aiov;
1910         auio.uio_iovcnt = iovcnt;




   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 /*
  23  * Copyright (c) 1995, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Copyright 2016 Nexenta Systems, Inc.  All rights reserved.
  25  * Copyright 2019 OmniOS Community Edition (OmniOSce) Association.
  26  * Copyright 2015, Joyent, Inc. All rights reserved.
  27  */
  28 
  29 #include <sys/types.h>
  30 #include <sys/t_lock.h>
  31 #include <sys/param.h>
  32 #include <sys/systm.h>
  33 #include <sys/buf.h>
  34 #include <sys/conf.h>
  35 #include <sys/cred.h>
  36 #include <sys/kmem.h>
  37 #include <sys/sysmacros.h>
  38 #include <sys/vfs.h>
  39 #include <sys/vfs_opreg.h>
  40 #include <sys/vnode.h>
  41 #include <sys/debug.h>
  42 #include <sys/errno.h>
  43 #include <sys/time.h>
  44 #include <sys/file.h>
  45 #include <sys/open.h>
  46 #include <sys/user.h>


1871                     sizeof (psi->si_son_straddr), "%p", (void *)so);
1872                 (void) snprintf(psi->si_lvn_straddr,
1873                     sizeof (psi->si_lvn_straddr), "%p",
1874                     (void *)sti->sti_ux_laddr.soua_vp);
1875                 (void) snprintf(psi->si_fvn_straddr,
1876                     sizeof (psi->si_fvn_straddr), "%p",
1877                     (void *)sti->sti_ux_faddr.soua_vp);
1878 
1879                 ns++;
1880                 psi++;
1881         }
1882 
1883         ksp->ks_ndata = ns;
1884         return (0);
1885 }
1886 
1887 ssize_t
1888 soreadfile(file_t *fp, uchar_t *buf, u_offset_t fileoff, int *err, size_t size)
1889 {
1890         struct uio auio;
1891         struct iovec aiov[1];
1892         register vnode_t *vp;
1893         int ioflag, rwflag;
1894         ssize_t cnt;
1895         int error = 0;
1896         int iovcnt = 0;
1897         short fflag;
1898 
1899         vp = fp->f_vnode;
1900         fflag = fp->f_flag;
1901 
1902         rwflag = 0;
1903         aiov[0].iov_base = (caddr_t)buf;
1904         aiov[0].iov_len = size;
1905         iovcnt = 1;
1906         cnt = (ssize_t)size;
1907         (void) VOP_RWLOCK(vp, rwflag, NULL);
1908 
1909         auio.uio_loffset = fileoff;
1910         auio.uio_iov = aiov;
1911         auio.uio_iovcnt = iovcnt;