include/os/linux/spl/sys/thread.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  *
  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 #ifndef _SPL_THREAD_H
  25 #define _SPL_THREAD_H
  26
  27 #include <linux/module.h>
  28 #include <linux/mm.h>
  29 #include <linux/spinlock.h>
  30 #include <linux/kthread.h>
  31 #include <sys/types.h>
  32 #include <sys/sysmacros.h>
  33 #include <sys/tsd.h>
  34
  35 /*
  36  * Thread interfaces
  37  */
  38 #define TP_MAGIC                        0x53535353
  39
  40 #define TS_SLEEP                        TASK_INTERRUPTIBLE
  41 #define TS_RUN                          TASK_RUNNING
  42 #define TS_ZOMB                         EXIT_ZOMBIE
  43 #define TS_STOPPED                      TASK_STOPPED
  44
  45 typedef void (*thread_func_t)(void *) __attribute__((noreturn));
  46
  47 #define thread_create_named(name, stk, stksize, func, arg, len, \
  48     pp, state, pri)     \
  49         __thread_create(stk, stksize, (thread_func_t)func,              \
  50         name, arg, len, pp, state, pri)
  51
  52 #define thread_create(stk, stksize, func, arg, len, pp, state, pri)     \
  53         __thread_create(stk, stksize, (thread_func_t)func, #func,       \
  54         arg, len, pp, state, pri)
  55
  56 #define thread_exit()                   spl_thread_exit()
  57 #define thread_join(t)                  VERIFY(0)
  58 #define curthread                       current
  59 #define getcomm()                       current->comm
  60 #define getpid()                        current->pid
  61
  62 extern kthread_t *__thread_create(caddr_t stk, size_t  stksize,
  63     thread_func_t func, const char *name, void *args, size_t len, proc_t *pp,
  64     int state, pri_t pri);
  65 extern struct task_struct *spl_kthread_create(int (*func)(void *),
  66     void *data, const char namefmt[], ...);
  67
  68 static inline __attribute__((noreturn)) void
  69 spl_thread_exit(void)
  70 {
  71         tsd_exit();
  72         SPL_KTHREAD_COMPLETE_AND_EXIT(NULL, 0);
  73 }
  74
  75 extern proc_t p0;
  76
  77 #ifdef HAVE_SIGINFO
  78 typedef kernel_siginfo_t spl_kernel_siginfo_t;
  79 #else
  80 typedef siginfo_t spl_kernel_siginfo_t;
  81 #endif
  82
  83 #endif  /* _SPL_THREAD_H */