Date: Sat, 30 Jul 2016 22:23:32 +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: r303563 - head/sys/kern Message-ID: <201607302223.u6UMNWD7037665@repo.freebsd.org>
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Author: mjg Date: Sat Jul 30 22:23:31 2016 New Revision: 303563 URL: https://svnweb.freebsd.org/changeset/base/303563 Log: sx: increment spin_cnt before cpu_spinwait in xlock The change is a no-op only done for consistency with the rest of the file. Modified: head/sys/kern/kern_sx.c Modified: head/sys/kern/kern_sx.c ============================================================================== --- head/sys/kern/kern_sx.c Sat Jul 30 22:21:48 2016 (r303562) +++ head/sys/kern/kern_sx.c Sat Jul 30 22:23:31 2016 (r303563) @@ -889,10 +889,10 @@ _sx_slock_hard(struct sx *sx, int opts, GIANT_SAVE(); while (SX_OWNER(sx->sx_lock) == x && TD_IS_RUNNING(owner)) { + cpu_spinwait(); #ifdef KDTRACE_HOOKS spin_cnt++; #endif - cpu_spinwait(); } KTR_STATE0(KTR_SCHED, "thread", sched_tdname(curthread), "running");
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