linuxkpi: Add bitmap_copy and bitmap_andnot

bitmap_copy simply copy the bitmaps, no idea why it exists.
bitmap_andnot is similar to bitmap_and but uses !src2.

Sponsored-by: The FreeBSD Foundation
Reviewed by:	hselasky
Differential Revision:	https://reviews.freebsd.org/D24782

1 files changed, 22 insertions, 0 deletions

diff --git a/sys/compat/linuxkpi/common/include/linux/bitmap.h b/sys/compat/linuxkpi/common/include/linux/bitmap.h
index c323e42d17f4..08dd69bce180 100644
--- a/sys/compat/linuxkpi/common/include/linux/bitmap.h
+++ b/sys/compat/linuxkpi/common/include/linux/bitmap.h
@@ -255,6 +255,17 @@ bitmap_complement(unsigned long *dst, const unsigned long *src,
 }
 
 static inline void
+bitmap_copy(unsigned long *dst, const unsigned long *src,
+    const unsigned int size)
+{
+	const unsigned int end = BITS_TO_LONGS(size);
+	unsigned int i;
+
+	for (i = 0; i != end; i++)
+		dst[i] = src[i];
+}
+
+static inline void
 bitmap_or(unsigned long *dst, const unsigned long *src1,
     const unsigned long *src2, const unsigned int size)
 {
@@ -277,6 +288,17 @@ bitmap_and(unsigned long *dst, const unsigned long *src1,
 }
 
 static inline void
+bitmap_andnot(unsigned long *dst, const unsigned long *src1,
+    const unsigned long *src2, const unsigned int size)
+{
+	const unsigned int end = BITS_TO_LONGS(size);
+	unsigned int i;
+
+	for (i = 0; i != end; i++)
+		dst[i] = src1[i] & ~src2[i];
+}
+
+static inline void
 bitmap_xor(unsigned long *dst, const unsigned long *src1,
     const unsigned long *src2, const unsigned int size)
 {