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414f7249dc
This change adds SIGSTOP and SIGTSTP handling to the issig function; this mirrors its behavior on Solaris. This way, long running kernel tasks can be stopped with the appropriate signals. Note that doing so with ctrl-z on the command line doesn't return control of the tty to the shell, because tty handling is done separately from stopping the process. That can be future work, if people feel that it is a necessary addition. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Paul Dagnelie <pcd@delphix.com> Issue #810 Issue #10843 Closes #11801
87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/*
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* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
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* Copyright (C) 2007 The Regents of the University of California.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _SPL_THREAD_H
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#define _SPL_THREAD_H
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#include <linux/module.h>
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#include <linux/mm.h>
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#include <linux/spinlock.h>
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#include <linux/kthread.h>
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#include <sys/types.h>
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#include <sys/sysmacros.h>
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#include <sys/tsd.h>
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/*
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* Thread interfaces
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*/
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#define TP_MAGIC 0x53535353
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#define TS_SLEEP TASK_INTERRUPTIBLE
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#define TS_RUN TASK_RUNNING
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#define TS_ZOMB EXIT_ZOMBIE
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#define TS_STOPPED TASK_STOPPED
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typedef void (*thread_func_t)(void *);
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#define thread_create_named(name, stk, stksize, func, arg, len, \
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pp, state, pri) \
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__thread_create(stk, stksize, (thread_func_t)func, \
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name, arg, len, pp, state, pri)
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/* BEGIN CSTYLED */
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#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
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__thread_create(stk, stksize, (thread_func_t)func, \
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#func, arg, len, pp, state, pri)
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/* END CSTYLED */
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#define thread_exit() __thread_exit()
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#define thread_join(t) VERIFY(0)
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#define curthread current
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#define getcomm() current->comm
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#define getpid() current->pid
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extern kthread_t *__thread_create(caddr_t stk, size_t stksize,
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thread_func_t func, const char *name, void *args, size_t len, proc_t *pp,
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int state, pri_t pri);
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extern void __thread_exit(void);
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extern struct task_struct *spl_kthread_create(int (*func)(void *),
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void *data, const char namefmt[], ...);
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extern proc_t p0;
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#ifdef HAVE_SIGINFO
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typedef kernel_siginfo_t spl_kernel_siginfo_t;
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#else
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typedef siginfo_t spl_kernel_siginfo_t;
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#endif
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#ifdef HAVE_SET_SPECIAL_STATE
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#define spl_set_special_state(x) set_special_state((x))
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#else
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#define spl_set_special_state(x) __set_current_state((x))
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#endif
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#endif /* _SPL_THREAD_H */
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