Date: Fri, 5 Dec 2014 09:30:08 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r275502 - stable/10/sys/kern Message-ID: <201412050930.sB59U8R6000558@svn.freebsd.org>
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Author: kib Date: Fri Dec 5 09:30:07 2014 New Revision: 275502 URL: https://svnweb.freebsd.org/changeset/base/275502 Log: MFC r275206: Assert the state of the process lock and sigact mutex in kern_sigprocmask() and reschedule_signals(). Modified: stable/10/sys/kern/kern_sig.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/kern/kern_sig.c ============================================================================== --- stable/10/sys/kern/kern_sig.c Fri Dec 5 08:46:15 2014 (r275501) +++ stable/10/sys/kern/kern_sig.c Fri Dec 5 09:30:07 2014 (r275502) @@ -1003,8 +1003,12 @@ kern_sigprocmask(struct thread *td, int int error; p = td->td_proc; - if (!(flags & SIGPROCMASK_PROC_LOCKED)) + if ((flags & SIGPROCMASK_PROC_LOCKED) != 0) + PROC_LOCK_ASSERT(p, MA_OWNED); + else PROC_LOCK(p); + mtx_assert(&p->p_sigacts->ps_mtx, (flags & SIGPROCMASK_PS_LOCKED) != 0 + ? MA_OWNED : MA_NOTOWNED); if (oset != NULL) *oset = td->td_sigmask; @@ -2519,9 +2523,11 @@ reschedule_signals(struct proc *p, sigse int sig; PROC_LOCK_ASSERT(p, MA_OWNED); + ps = p->p_sigacts; + mtx_assert(&ps->ps_mtx, (flags & SIGPROCMASK_PS_LOCKED) != 0 ? + MA_OWNED : MA_NOTOWNED); if (SIGISEMPTY(p->p_siglist)) return; - ps = p->p_sigacts; SIGSETAND(block, p->p_siglist); while ((sig = sig_ffs(&block)) != 0) { SIGDELSET(block, sig);
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