FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/os/freebsd/spl/sys/proc.h

     /*
      * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _OPENSOLARIS_SYS_PROC_H_
    #define _OPENSOLARIS_SYS_PROC_H_
    
    #include <sys/param.h>
    #include <sys/kthread.h>
    #include_next <sys/proc.h>
    #include <sys/stdint.h>
    #include <sys/smp.h>
    #include <sys/sched.h>
    #include <sys/lock.h>
    #include <sys/mutex.h>
    #include <sys/unistd.h>
    #include <sys/kmem.h>
    #include <sys/malloc.h>
    
    #ifdef _KERNEL
    #define CPU             curcpu
    #define minclsyspri     PRIBIO
    #define defclsyspri minclsyspri
    #define maxclsyspri     PVM
    #define max_ncpus       (mp_maxid + 1)
    #define boot_max_ncpus  (mp_maxid + 1)
    
    #define TS_RUN  0
    
    #define p0      proc0
    
    #define t_tid   td_tid
    
    typedef short           pri_t;
    typedef struct thread   _kthread;
    typedef struct thread   kthread_t;
    typedef struct thread   *kthread_id_t;
    typedef struct proc     proc_t;
    
    extern proc_t *system_proc;
    
    static __inline kthread_t *
    do_thread_create(caddr_t stk, size_t stksize, void (*proc)(void *), void *arg,
        size_t len, proc_t *pp, int state, pri_t pri, const char *name)
    {
            kthread_t *td = NULL;
            proc_t **ppp;
            int error;
    
            /*
             * Be sure there are no surprises.
             */
            ASSERT(stk == NULL);
            ASSERT(len == 0);
            ASSERT(state == TS_RUN);
    
            if (pp == &p0)
                    ppp = &system_proc;
            else
                    ppp = &pp;
            error = kproc_kthread_add(proc, arg, ppp, &td, RFSTOPPED,
                stksize / PAGE_SIZE, "zfskern", "%s", name);
            if (error == 0) {
                    thread_lock(td);
                    sched_prio(td, pri);
                    sched_add(td, SRQ_BORING);
    #if __FreeBSD_version < 1300068
                    thread_unlock(td);
    #endif
            }
            return (td);
    }
    
    #define thread_create_named(name, stk, stksize, proc, arg, len, \
        pp, state, pri) \
           do_thread_create(stk, stksize, proc, arg, len, pp, state, pri, name)
   #define thread_create(stk, stksize, proc, arg, len, pp, state, pri) \
           do_thread_create(stk, stksize, proc, arg, len, pp, state, pri, #proc)
   #define thread_exit()   kthread_exit()
   
   int     uread(proc_t *, void *, size_t, uintptr_t);
   int     uwrite(proc_t *, void *, size_t, uintptr_t);
   
   static inline boolean_t
   zfs_proc_is_caller(proc_t *p)
   {
           return (p == curproc);
   }
   
   #endif  /* _KERNEL */
   #endif  /* _OPENSOLARIS_SYS_PROC_H_ */

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