diff options
Diffstat (limited to 'backport-include/asm/atomic.h')
| -rw-r--r-- | backport-include/asm/atomic.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/backport-include/asm/atomic.h b/backport-include/asm/atomic.h new file mode 100644 index 0000000..31bddc6 --- /dev/null +++ b/backport-include/asm/atomic.h @@ -0,0 +1,19 @@ +#ifndef __BACKPORT_ASM_ATOMIC_H +#define __BACKPORT_ASM_ATOMIC_H +#include_next <asm/atomic.h> +#include <linux/version.h> +#include <asm/barrier.h> + +#if LINUX_VERSION_IS_LESS(3,1,0) +/* + * In many versions, several architectures do not seem to include an + * atomic64_t implementation, and do not include the software emulation from + * asm-generic/atomic64_t. + * Detect and handle this here. + */ +#if (!defined(ATOMIC64_INIT) && !defined(CONFIG_X86) && !(defined(CONFIG_ARM) && !defined(CONFIG_GENERIC_ATOMIC64))) +#include <asm-generic/atomic64.h> +#endif +#endif + +#endif /* __BACKPORT_ASM_ATOMIC_H */ |