module/os/linux/spl/spl-vmem.c

   1 /*
   2  *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
   3  *  Copyright (C) 2007 The Regents of the University of California.
   4  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
   5  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
   6  *  UCRL-CODE-235197
   7  *
   8  *  This file is part of the SPL, Solaris Porting Layer.
   9  *
  10  *  The SPL is free software; you can redistribute it and/or modify it
  11  *  under the terms of the GNU General Public License as published by the
  12  *  Free Software Foundation; either version 2 of the License, or (at your
  13  *  option) any later version.
  14  *
  15  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
  16  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  18  *  for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License along
  21  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #include <sys/debug.h>
  25 #include <sys/vmem.h>
  26 #include <sys/kmem_cache.h>
  27 #include <sys/shrinker.h>
  28 #include <linux/module.h>
  29
  30 /*
  31  * Public vmem_alloc(), vmem_zalloc() and vmem_free() interfaces.
  32  */
  33 void *
  34 spl_vmem_alloc(size_t size, int flags, const char *func, int line)
  35 {
  36         ASSERT0(flags & ~KM_PUBLIC_MASK);
  37
  38         flags |= KM_VMEM;
  39
  40 #if !defined(DEBUG_KMEM)
  41         return (spl_kmem_alloc_impl(size, flags, NUMA_NO_NODE));
  42 #elif !defined(DEBUG_KMEM_TRACKING)
  43         return (spl_kmem_alloc_debug(size, flags, NUMA_NO_NODE));
  44 #else
  45         return (spl_kmem_alloc_track(size, flags, func, line, NUMA_NO_NODE));
  46 #endif
  47 }
  48 EXPORT_SYMBOL(spl_vmem_alloc);
  49
  50 void *
  51 spl_vmem_zalloc(size_t size, int flags, const char *func, int line)
  52 {
  53         ASSERT0(flags & ~KM_PUBLIC_MASK);
  54
  55         flags |= (KM_VMEM | KM_ZERO);
  56
  57 #if !defined(DEBUG_KMEM)
  58         return (spl_kmem_alloc_impl(size, flags, NUMA_NO_NODE));
  59 #elif !defined(DEBUG_KMEM_TRACKING)
  60         return (spl_kmem_alloc_debug(size, flags, NUMA_NO_NODE));
  61 #else
  62         return (spl_kmem_alloc_track(size, flags, func, line, NUMA_NO_NODE));
  63 #endif
  64 }
  65 EXPORT_SYMBOL(spl_vmem_zalloc);
  66
  67 void
  68 spl_vmem_free(const void *buf, size_t size)
  69 {
  70 #if !defined(DEBUG_KMEM)
  71         return (spl_kmem_free_impl(buf, size));
  72 #elif !defined(DEBUG_KMEM_TRACKING)
  73         return (spl_kmem_free_debug(buf, size));
  74 #else
  75         return (spl_kmem_free_track(buf, size));
  76 #endif
  77 }
  78 EXPORT_SYMBOL(spl_vmem_free);
  79
  80 int
  81 spl_vmem_init(void)
  82 {
  83         return (0);
  84 }
  85
  86 void
  87 spl_vmem_fini(void)
  88 {
  89 }