Author: bdrewery
Date: Mon Mar 21 17:53:37 2016
New Revision: 297153
URL: https://svnweb.freebsd.org/changeset/base/297153
Log:
MFC r296819:
Reword SX_NOADAPTIVE description to be clear that adaptive is default.
Modified:
stable/9/share/man/man9/sx.9
Directory Properties:
stable/9/share/man/man9/ (props changed)
Modified: stable/9/share/man/man9/sx.9
==============================================================================
--- stable/9/share/man/man9/sx.9 Mon Mar 21 17:51:15 2016
(r297152)
+++ stable/9/share/man/man9/sx.9 Mon Mar 21 17:53:37 2016
(r297153)
@@ -26,7 +26,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd May 28, 2009
+.Dd March 13, 2016
.Dt SX 9
.Os
.Sh NAME
@@ -124,12 +124,10 @@ specifies a set of optional flags to alt
It contains one or more of the following flags:
.Bl -tag -width SX_NOADAPTIVE
.It Dv SX_NOADAPTIVE
-If the kernel is not compiled with
-.Cd "options NO_ADAPTIVE_SX" ,
-then lock operations for
-.Fa sx
-will spin instead of sleeping while an exclusive lock holder is executing on
-another CPU.
+Disable adaptive spinning, rather than sleeping, for lock operations
+while an exclusive lock holder is executing on another CPU.
+Adaptive spinning is the default unless the kernel is compiled with
+.Cd "options NO_ADAPTIVE_SX" .
.It Dv SX_DUPOK
Witness should not log messages about duplicate locks being acquired.
.It Dv SX_NOWITNESS
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