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diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile
--- a/share/man/man9/Makefile
+++ b/share/man/man9/Makefile
@@ -635,6 +635,8 @@
bitset.9 BIT_CMP.9 \
bitset.9 BIT_OR.9 \
bitset.9 BIT_OR2.9 \
+ bitset.9 BIT_ORNOT.9 \
+ bitset.9 BIT_ORNOT2.9 \
bitset.9 BIT_AND.9 \
bitset.9 BIT_AND2.9 \
bitset.9 BIT_ANDNOT.9 \
@@ -924,6 +926,7 @@
cpuset.9 CPU_OVERLAP.9 \
cpuset.9 CPU_CMP.9 \
cpuset.9 CPU_OR.9 \
+ cpuset.9 CPU_ORNOT.9 \
cpuset.9 CPU_AND.9 \
cpuset.9 CPU_ANDNOT.9 \
cpuset.9 CPU_CLR_ATOMIC.9 \
diff --git a/share/man/man9/bitset.9 b/share/man/man9/bitset.9
--- a/share/man/man9/bitset.9
+++ b/share/man/man9/bitset.9
@@ -51,6 +51,8 @@
.Nm BIT_CMP ,
.Nm BIT_OR ,
.Nm BIT_OR2 ,
+.Nm BIT_ORNOT ,
+.Nm BIT_ORNOT2 ,
.Nm BIT_AND ,
.Nm BIT_AND2 ,
.Nm BIT_ANDNOT ,
@@ -123,6 +125,13 @@
.Fa "struct STRUCTNAME *src1"
.Fa "struct STRUCTNAME *src2"
.Fc
+.Fn BIT_ORNOT "const SETSIZE" "struct STRUCTNAME *dst" "struct STRUCTNAME *src"
+.Fo BIT_ORNOT2
+.Fa "const SETSIZE"
+.Fa "struct STRUCTNAME *dst"
+.Fa "struct STRUCTNAME *src1"
+.Fa "struct STRUCTNAME *src2"
+.Fc
.Fn BIT_AND "const SETSIZE" "struct STRUCTNAME *dst" "struct STRUCTNAME *src"
.Fo BIT_AND2
.Fa "const SETSIZE"
@@ -459,6 +468,36 @@
.Fa src2 . )
.Pp
The
+.Fn BIT_ORNOT
+macro sets bits not in
+.Fa src
+in
+.Fa dst .
+(It is the
+.Nm
+equivalent of the scalar:
+.Fa dst
+|=
+.Fa ~ src . )
+.Pp
+The
+.Fn BIT_ORNOT2
+macro computes
+.Fa src1
+bitwise or not
+.Fa src2
+and assigns the result to
+.Fa dst .
+(It is the
+.Nm
+equivalent of the scalar:
+.Fa dst
+=
+.Fa src1
+| ~
+.Fa src2 . )
+.Pp
+The
.Fn BIT_AND
macro clears bits absent from
.Fa src
diff --git a/share/man/man9/cpuset.9 b/share/man/man9/cpuset.9
--- a/share/man/man9/cpuset.9
+++ b/share/man/man9/cpuset.9
@@ -45,6 +45,7 @@
.Nm CPU_OVERLAP ,
.Nm CPU_CMP ,
.Nm CPU_OR ,
+.Nm CPU_ORNOT ,
.Nm CPU_AND ,
.Nm CPU_ANDNOT ,
.Nm CPU_XOR ,
@@ -86,6 +87,7 @@
.Ft bool
.Fn CPU_CMP "cpuset_t *cpuset1" "cpuset_t *cpuset2"
.Fn CPU_OR "cpuset_t *dst" "cpuset_t *src1" "cpuset_t *src2"
+.Fn CPU_ORNOT "cpuset_t *dst" "cpuset_t *src1" "cpuset_t *src2"
.Fn CPU_AND "cpuset_t *dst" "cpuset_t *src1" "cpuset_t *src2"
.Fn CPU_ANDNOT "cpuset_t *dst" "cpuset_t *src1" "cpuset_t *src2"
.Fn CPU_XOR "cpuset_t *dst" "cpuset_t *src1" "cpuset_t *src2"
@@ -296,6 +298,19 @@
performs multiple individually atomic operations.)
.Pp
The
+.Fn CPU_ORNOT
+macro add CPUs not in
+.Fa src
+to
+.Fa dst .
+(It is the
+.Nm
+equivalent of the scalar:
+.Fa dst
+|=
+.Fa ~ src . )
+.Pp
+The
.Fn CPU_AND
macro removes CPUs absent from
.Fa src
diff --git a/sys/sys/bitset.h b/sys/sys/bitset.h
--- a/sys/sys/bitset.h
+++ b/sys/sys/bitset.h
@@ -135,6 +135,18 @@
(d)->__bits[__i] = (s1)->__bits[__i] | (s2)->__bits[__i];\
} while (0)
+#define __BIT_ORNOT(_s, d, s) do { \
+ __size_t __i; \
+ for (__i = 0; __i < __bitset_words((_s)); __i++) \
+ (d)->__bits[__i] |= ~(s)->__bits[__i]; \
+} while (0)
+
+#define __BIT_ORNOT2(_s, d, s1, s2) do { \
+ __size_t __i; \
+ for (__i = 0; __i < __bitset_words((_s)); __i++) \
+ (d)->__bits[__i] = (s1)->__bits[__i] | ~(s2)->__bits[__i];\
+} while (0)
+
#define __BIT_AND(_s, d, s) do { \
__size_t __i; \
for (__i = 0; __i < __bitset_words((_s)); __i++) \
@@ -330,6 +342,8 @@
#define BIT_ISSET(_s, n, p) __BIT_ISSET(_s, n, p)
#define BIT_OR(_s, d, s) __BIT_OR(_s, d, s)
#define BIT_OR2(_s, d, s1, s2) __BIT_OR2(_s, d, s1, s2)
+#define BIT_ORNOT(_s, d, s) __BIT_ORNOT(_s, d, s)
+#define BIT_ORNOT2(_s, d, s1, s2) __BIT_ORNOT2(_s, d, s1, s2)
#define BIT_OR_ATOMIC(_s, d, s) __BIT_OR_ATOMIC(_s, d, s)
#define BIT_OVERLAP(_s, p, c) __BIT_OVERLAP(_s, p, c)
#define BIT_SET(_s, n, p) __BIT_SET(_s, n, p)
diff --git a/sys/sys/cpuset.h b/sys/sys/cpuset.h
--- a/sys/sys/cpuset.h
+++ b/sys/sys/cpuset.h
@@ -56,6 +56,7 @@
#define CPU_OVERLAP(p, c) __BIT_OVERLAP(CPU_SETSIZE, p, c)
#define CPU_CMP(p, c) __BIT_CMP(CPU_SETSIZE, p, c)
#define CPU_OR(d, s1, s2) __BIT_OR2(CPU_SETSIZE, d, s1, s2)
+#define CPU_ORNOT(d, s1, s2) __BIT_ORNOT2(CPU_SETSIZE, d, s1, s2)
#define CPU_AND(d, s1, s2) __BIT_AND2(CPU_SETSIZE, d, s1, s2)
#define CPU_ANDNOT(d, s1, s2) __BIT_ANDNOT2(CPU_SETSIZE, d, s1, s2)
#define CPU_XOR(d, s1, s2) __BIT_XOR2(CPU_SETSIZE, d, s1, s2)
diff --git a/sys/sys/domainset.h b/sys/sys/domainset.h
--- a/sys/sys/domainset.h
+++ b/sys/sys/domainset.h
@@ -54,6 +54,7 @@
#define DOMAINSET_OVERLAP(p, c) __BIT_OVERLAP(DOMAINSET_SETSIZE, p, c)
#define DOMAINSET_CMP(p, c) __BIT_CMP(DOMAINSET_SETSIZE, p, c)
#define DOMAINSET_OR(d, s) __BIT_OR(DOMAINSET_SETSIZE, d, s)
+#define DOMAINSET_ORNOT(d, s) __BIT_ORNOT(DOMAINSET_SETSIZE, d, s)
#define DOMAINSET_AND(d, s) __BIT_AND(DOMAINSET_SETSIZE, d, s)
#define DOMAINSET_ANDNOT(d, s) __BIT_ANDNOT(DOMAINSET_SETSIZE, d, s)
#define DOMAINSET_CLR_ATOMIC(n, p) __BIT_CLR_ATOMIC(DOMAINSET_SETSIZE, n, p)

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