Date: Sat, 11 Nov 2017 18:03:26 +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: r325720 - head/sys/kern Message-ID: <201711111803.vABI3QnC037982@repo.freebsd.org>
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Author: mjg Date: Sat Nov 11 18:03:26 2017 New Revision: 325720 URL: https://svnweb.freebsd.org/changeset/base/325720 Log: Avoid allproc lock in pfind if curproc->pid == pid Modified: head/sys/kern/kern_proc.c Modified: head/sys/kern/kern_proc.c ============================================================================== --- head/sys/kern/kern_proc.c Sat Nov 11 18:02:23 2017 (r325719) +++ head/sys/kern/kern_proc.c Sat Nov 11 18:03:26 2017 (r325720) @@ -342,6 +342,11 @@ pfind(pid_t pid) { struct proc *p; + p = curproc; + if (p->p_pid == pid) { + PROC_LOCK(p); + return (p); + } sx_slock(&allproc_lock); p = pfind_locked(pid); sx_sunlock(&allproc_lock);
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