summaryrefslogtreecommitdiff
path: root/ANDROID_3.4.5/include/asm-generic/futex.h
diff options
context:
space:
mode:
Diffstat (limited to 'ANDROID_3.4.5/include/asm-generic/futex.h')
-rw-r--r--ANDROID_3.4.5/include/asm-generic/futex.h57
1 files changed, 0 insertions, 57 deletions
diff --git a/ANDROID_3.4.5/include/asm-generic/futex.h b/ANDROID_3.4.5/include/asm-generic/futex.h
deleted file mode 100644
index 01f227e1..00000000
--- a/ANDROID_3.4.5/include/asm-generic/futex.h
+++ /dev/null
@@ -1,57 +0,0 @@
-#ifndef _ASM_GENERIC_FUTEX_H
-#define _ASM_GENERIC_FUTEX_H
-
-#include <linux/futex.h>
-#include <linux/uaccess.h>
-#include <asm/errno.h>
-
-static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
-{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
- int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
-
- pagefault_disable();
-
- switch (op) {
- case FUTEX_OP_SET:
- case FUTEX_OP_ADD:
- case FUTEX_OP_OR:
- case FUTEX_OP_ANDN:
- case FUTEX_OP_XOR:
- default:
- ret = -ENOSYS;
- }
-
- pagefault_enable();
-
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
- return ret;
-}
-
-static inline int
-futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
- u32 oldval, u32 newval)
-{
- return -ENOSYS;
-}
-
-#endif