[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 11 of 20] libxc: add bitmap_clear function
# HG changeset patch # User Olaf Hering <olaf@xxxxxxxxx> # Date 1321804960 -3600 # Node ID e74c938d38518f6f6344c9bcc6b7c8916a073594 # Parent cc72e36fa9c3a6a467ad12188551f6f233185fc9 libxc: add bitmap_clear function Signed-off-by: Olaf Hering <olaf@xxxxxxxxx> diff -r cc72e36fa9c3 -r e74c938d3851 tools/libxc/xc_bitops.h --- a/tools/libxc/xc_bitops.h +++ b/tools/libxc/xc_bitops.h @@ -4,6 +4,7 @@ /* bitmap operations for single threaded access */ #include <stdlib.h> +#include <string.h> #define BITS_PER_LONG (sizeof(unsigned long) * 8) #define ORDER_LONG (sizeof(unsigned long) == 4 ? 5 : 6) @@ -25,6 +26,11 @@ static inline unsigned long *bitmap_allo return calloc(1, bitmap_size(nr_bits)); } +static inline void bitmap_clear(unsigned long *addr, int nr_bits) +{ + memset(addr, 0, bitmap_size(nr_bits)); +} + static inline int test_bit(int nr, volatile unsigned long *addr) { return (BITMAP_ENTRY(nr, addr) >> BITMAP_SHIFT(nr)) & 1; _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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