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-rw-r--r--share/man/man9/sx.99
1 files changed, 9 insertions, 0 deletions
diff --git a/share/man/man9/sx.9 b/share/man/man9/sx.9
index ce73f71..da858da 100644
--- a/share/man/man9/sx.9
+++ b/share/man/man9/sx.9
@@ -142,6 +142,15 @@ Allow threads to recursively acquire exclusive locks for
.It Dv SX_QUIET
Do not log any operations for this lock via
.Xr ktr 4 .
+.It Dv SX_NEW
+If the kernel has been compiled with
+.Cd "options INVARIANTS" ,
+.Fn sx_init
+will assert that the
+.Fa sx
+has not been initialized multiple times without intervening calls to
+.Fn sx_destroy
+unless this option is specified.
.El
.Pp
Shared/exclusive locks are destroyed with
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