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Annotation of sys/xfs/xfs_common-bsd.c, Revision 1.1

1.1     ! nbrk        1: /*
        !             2:  * Copyright (c) 1995 - 2002 Kungliga Tekniska Högskolan
        !             3:  * (Royal Institute of Technology, Stockholm, Sweden).
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions
        !             8:  * are met:
        !             9:  *
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  *
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  *
        !            17:  * 3. Neither the name of the Institute nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  */
        !            33:
        !            34: #include <xfs/xfs_locl.h>
        !            35: #include <xfs/xfs_common.h>
        !            36: #include <xfs/xfs_deb.h>
        !            37:
        !            38: RCSID("$arla: xfs_common-bsd.c,v 1.25 2002/12/18 16:32:03 lha Exp $");
        !            39:
        !            40: #ifdef MALLOC_DEFINE
        !            41: MALLOC_DEFINE(M_NNPFS, "xfs-misc", "xfs misc");
        !            42: MALLOC_DEFINE(M_NNPFS_NODE, "xfs-node", "xfs node");
        !            43: MALLOC_DEFINE(M_NNPFS_LINK, "xfs-link", "xfs link");
        !            44: MALLOC_DEFINE(M_NNPFS_MSG, "xfs-msg", "xfs msg");
        !            45: #endif
        !            46:
        !            47: #ifdef NNPFS_DEBUG
        !            48: static u_int xfs_allocs;
        !            49: static u_int xfs_frees;
        !            50:
        !            51: void *
        !            52: xfs_alloc(u_int size, xfs_malloc_type type)
        !            53: {
        !            54:     void *ret;
        !            55:
        !            56:     xfs_allocs++;
        !            57:     NNPFSDEB(XDEBMEM, ("xfs_alloc: xfs_allocs - xfs_frees %d\n",
        !            58:                     xfs_allocs - xfs_frees));
        !            59:
        !            60:     MALLOC(ret, void *, size, type, M_WAITOK);
        !            61:     return ret;
        !            62: }
        !            63:
        !            64: void
        !            65: xfs_free(void *ptr, u_int size, xfs_malloc_type type)
        !            66: {
        !            67:     xfs_frees++;
        !            68:     FREE(ptr, type);
        !            69: }
        !            70:
        !            71: #endif /* NNPFS_DEBUG */
        !            72:
        !            73: int
        !            74: xfs_suser(d_thread_t *p)
        !            75: {
        !            76: #if defined(HAVE_TWO_ARGUMENT_SUSER)
        !            77: #ifdef __OpenBSD__
        !            78:     return suser (p, SUSER_NOACCT);
        !            79: #else
        !            80:     return suser (xfs_proc_to_cred(p), NULL);
        !            81: #endif
        !            82: #else
        !            83:     return suser (p);
        !            84: #endif
        !            85: }
        !            86:
        !            87: /*
        !            88:  * Print a `dev_t' in some readable format
        !            89:  */
        !            90:
        !            91: #ifdef HAVE_KERNEL_DEVTONAME
        !            92:
        !            93: const char *
        !            94: xfs_devtoname_r (dev_t dev, char *buf, size_t sz)
        !            95: {
        !            96:     return devtoname (dev);
        !            97: }
        !            98:
        !            99: #else /* !HAVE_KERNEL_DEVTONAME */
        !           100:
        !           101: const char *
        !           102: xfs_devtoname_r (dev_t dev, char *buf, size_t sz)
        !           103: {
        !           104: #ifdef HAVE_KERNEL_SNPRINTF
        !           105:     snprintf (buf, sz, "%u/%u", major(dev), minor(dev));
        !           106:     return buf;
        !           107: #else
        !           108:     return "<unknown device>";
        !           109: #endif
        !           110: }
        !           111:
        !           112: #endif /* HAVE_KERNEL_DEVTONAME */