include/linux/sysctl_compat.h

   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  *  For details, see <http://github.com/behlendorf/spl/>.
  10  *
  11  *  The SPL is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the
  13  *  Free Software Foundation; either version 2 of the License, or (at your
  14  *  option) any later version.
  15  *
  16  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
  17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19  *  for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License along
  22  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
  23 \*****************************************************************************/
  24
  25 #ifndef _SPL_SYSCTL_COMPAT_H
  26 #define _SPL_SYSCTL_COMPAT_H
  27
  28 #include <linux/sysctl.h>
  29
  30 /* proc_handler() / proc_do* API changes
  31  * 2.6.x  - 2.6.31: 6 args, prototype includes 'struct file *'
  32  * 2.6.32 - 2.6.y:  5 args, removed unused 'struct file *' from prototype
  33  *
  34  * Generic SPL_PROC_HANDLER() macro should be used for correct prototypes.
  35  * It will define the following function arguments which can and should be
  36  * used with the spl_proc_* helper macros.
  37  *
  38  *   struct ctl_table *table,
  39  *   int write,
  40  *   struct file *filp [2.6.31 and earlier kernels],
  41  *   void __user *buffer,
  42  *   size_t *lenp,
  43  *   loff_t *ppos,
  44  */
  45 #ifdef HAVE_5ARGS_PROC_HANDLER
  46
  47 #define SPL_PROC_HANDLER(proc_handler)                                       \
  48 static int                                                                   \
  49 proc_handler(struct ctl_table *table, int write,                             \
  50              void __user *buffer, size_t *lenp, loff_t *ppos)
  51
  52 #define spl_proc_dostring(table, write, filp, buffer, lenp, ppos)            \
  53         proc_dostring(table, write, buffer, lenp, ppos)
  54 #define spl_proc_dointvec(table, write, filp, buffer, lenp, ppos)            \
  55         proc_dointvec(table, write, buffer, lenp, ppos)
  56 #define spl_proc_dointvec_minmax(table, write, filp, buffer, lenp, ppos)     \
  57         proc_dointvec_minmax(table, write, buffer, lenp, ppos)
  58 #define spl_proc_dointvec_jiffies(table, write, filp, buffer, lenp, ppos)    \
  59         proc_dointvec_jiffies(table, write, buffer, lenp, ppos)
  60 #define spl_proc_dointvec_userhz_jiffies(table,write,filp,buffer,lenp,ppos)  \
  61         proc_dointvec_userhz_jiffies(table, write, buffer, lenp, ppos)
  62 #define spl_proc_dointvec_ms_jiffies(table,write,filp,buffer,lenp,ppos)      \
  63         proc_dointvec_ms_jiffies(table, write, buffer, lenp, ppos)
  64 #define spl_proc_doulongvec_minmax(table, write, filp, buffer, lenp, ppos)   \
  65         proc_doulongvec_minmax(table, write, buffer, lenp, ppos)
  66 #define spl_proc_doulongvec_ms_jiffies_minmax(table,write,filp,buffer,lenp,ppos)\
  67         proc_doulongvec_ms_jiffies_minmax(table, write, buffer, lenp, ppos)
  68
  69 #else /* HAVE_5ARGS_PROC_HANDLER */
  70
  71 #define SPL_PROC_HANDLER(proc_handler)                                       \
  72 static int                                                                   \
  73 proc_handler(struct ctl_table *table, int write, struct file *filp,          \
  74              void __user *buffer, size_t *lenp, loff_t *ppos)
  75
  76 #define spl_proc_dostring(table, write, filp, buffer, lenp, ppos)            \
  77         proc_dostring(table, write, filp, buffer, lenp, ppos)
  78 #define spl_proc_dointvec(table, write, filp, buffer, lenp, ppos)            \
  79         proc_dointvec(table, write, filp, buffer, lenp, ppos)
  80 #define spl_proc_dointvec_minmax(table, write, filp, buffer, lenp, ppos)     \
  81         proc_dointvec_minmax(table, write, filp, buffer, lenp, ppos)
  82 #define spl_proc_dointvec_jiffies(table, write, filp, buffer, lenp, ppos)    \
  83         proc_dointvec_jiffies(table, write, filp, buffer, lenp, ppos)
  84 #define spl_proc_dointvec_userhz_jiffies(table,write,filp,buffer,lenp,ppos)  \
  85         proc_dointvec_userhz_jiffies(table, write, filp, buffer, lenp, ppos)
  86 #define spl_proc_dointvec_ms_jiffies(table, write, filp, buffer, lenp, ppos) \
  87         proc_dointvec_ms_jiffies(table, write, filp, buffer, lenp, ppos)
  88 #define spl_proc_doulongvec_minmax(table, write, filp, buffer, lenp, ppos)        \
  89         proc_doulongvec_minmax(table, write, filp, buffer, lenp, ppos)
  90 #define spl_proc_doulongvec_ms_jiffies_minmax(table,write,filp,buffer,lenp,ppos)  \
  91         proc_doulongvec_ms_jiffies_minmax(table,write,filp,buffer,lenp,ppos)
  92
  93
  94 #endif /* HAVE_5ARGS_PROC_HANDLER */
  95
  96 #endif /* _SPL_SYSCTL_COMPAT_H */