[Xen-devel] [PATCH 04/24] xen/arm: sync_bitops
From: Konrad Rzeszutek Wilk <hidden>
Date: 2012-07-26 16:47:29
Also in:
lkml, xen-devel
On Thu, Jul 26, 2012 at 04:33:46PM +0100, Stefano Stabellini wrote:
sync_bitops functions are equivalent to the SMP implementation of the original functions, independently from CONFIG_SMP being defined.
So why can't the code be changed to use that? Is it that the _set_bit, _clear_bit, etc are not available with !CONFIG_SMP?
quoted hunk ↗ jump to hunk
Signed-off-by: Stefano Stabellini <redacted> --- arch/arm/include/asm/sync_bitops.h | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) create mode 100644 arch/arm/include/asm/sync_bitops.hdiff --git a/arch/arm/include/asm/sync_bitops.h b/arch/arm/include/asm/sync_bitops.h new file mode 100644 index 0000000..d975092903 --- /dev/null +++ b/arch/arm/include/asm/sync_bitops.h@@ -0,0 +1,17 @@ +#ifndef __ASM_SYNC_BITOPS_H__ +#define __ASM_SYNC_BITOPS_H__ + +#include <asm/bitops.h> +#include <asm/system.h> + +#define sync_set_bit(nr, p) _set_bit(nr, p) +#define sync_clear_bit(nr, p) _clear_bit(nr, p) +#define sync_change_bit(nr, p) _change_bit(nr, p) +#define sync_test_and_set_bit(nr, p) _test_and_set_bit(nr, p) +#define sync_test_and_clear_bit(nr, p) _test_and_clear_bit(nr, p) +#define sync_test_and_change_bit(nr, p) _test_and_change_bit(nr, p) +#define sync_test_bit(nr, addr) test_bit(nr, addr) +#define sync_cmpxchg cmpxchg + + +#endif-- 1.7.2.5 _______________________________________________ Xen-devel mailing list Xen-devel at lists.xen.org http://lists.xen.org/xen-devel