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authorIngo Molnar <mingo@elte.hu>2008-08-11 08:59:21 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-11 08:59:21 +0200
commitcf206bffbb7542df54043fad9898113172af99d8 (patch)
treec7e7ca9a93443b888f98a0c07e74751a1aa3c947 /include/asm-s390/futex.h
parentc1955a3d4762e7a9bf84035eb3c4886a900f0d15 (diff)
parent796aadeb1b2db9b5d463946766c5bbfd7717158c (diff)
Merge branch 'linus' into sched/clock
Diffstat (limited to 'include/asm-s390/futex.h')
-rw-r--r--include/asm-s390/futex.h52
1 files changed, 0 insertions, 52 deletions
diff --git a/include/asm-s390/futex.h b/include/asm-s390/futex.h
deleted file mode 100644
index 5c5d02de49e..00000000000
--- a/include/asm-s390/futex.h
+++ /dev/null
@@ -1,52 +0,0 @@
-#ifndef _ASM_S390_FUTEX_H
-#define _ASM_S390_FUTEX_H
-
-#ifdef __KERNEL__
-
-#include <linux/futex.h>
-#include <linux/uaccess.h>
-#include <asm/errno.h>
-
-static inline int futex_atomic_op_inuser (int encoded_op, int __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, ret;
-
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
- pagefault_disable();
- ret = uaccess.futex_atomic_op(op, uaddr, oparg, &oldval);
- 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(int __user *uaddr,
- int oldval, int newval)
-{
- if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
- return uaccess.futex_atomic_cmpxchg(uaddr, oldval, newval);
-}
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_S390_FUTEX_H */