Date: Sat, 17 Feb 2018 08:48:46 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r329448 - head/sys/kern Message-ID: <201802170848.w1H8mkfb081764@repo.freebsd.org>
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Author: mjg Date: Sat Feb 17 08:48:45 2018 New Revision: 329448 URL: https://svnweb.freebsd.org/changeset/base/329448 Log: exit: get rid of PROC_SLOCK when checking a process to report All accessed fields are protected with already held process lock. Modified: head/sys/kern/kern_exit.c Modified: head/sys/kern/kern_exit.c ============================================================================== --- head/sys/kern/kern_exit.c Sat Feb 17 08:12:35 2018 (r329447) +++ head/sys/kern/kern_exit.c Sat Feb 17 08:48:45 2018 (r329448) @@ -1228,15 +1228,11 @@ loop_locked: nfound++; PROC_LOCK_ASSERT(p, MA_OWNED); - if ((options & (WTRAPPED | WUNTRACED)) != 0) - PROC_SLOCK(p); - if ((options & WTRAPPED) != 0 && (p->p_flag & P_TRACED) != 0 && (p->p_flag & (P_STOPPED_TRACE | P_STOPPED_SIG)) != 0 && p->p_suspcount == p->p_numthreads && (p->p_flag & P_WAITED) == 0) { - PROC_SUNLOCK(p); CTR4(KTR_PTRACE, "wait: returning trapped pid %d status %#x " "(xstat %d) xthread %d", @@ -1251,13 +1247,10 @@ loop_locked: (p->p_flag & P_STOPPED_SIG) != 0 && p->p_suspcount == p->p_numthreads && (p->p_flag & P_WAITED) == 0) { - PROC_SUNLOCK(p); report_alive_proc(td, p, siginfo, status, options, CLD_STOPPED); return (0); } - if ((options & (WTRAPPED | WUNTRACED)) != 0) - PROC_SUNLOCK(p); if ((options & WCONTINUED) != 0 && (p->p_flag & P_CONTINUED) != 0) { report_alive_proc(td, p, siginfo, status, options,
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