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authorVasily Averin <vvs@virtuozzo.com>2019-07-16 09:22:03 +0300
committerThomas Gleixner <tglx@linutronix.de>2019-07-22 12:20:10 +0300
commitf9adc23ee91e6f561bb70c6147d8d45bd164d62f (patch)
treef6868fddc5bfe4d4464cb09934f6b2bf1ab2a8b7 /include/asm-generic
parent5f9e832c137075045d15cd6899ab0505cfb2ca4b (diff)
downloadlinux-f9adc23ee91e6f561bb70c6147d8d45bd164d62f.tar.xz
futex: Cleanup generic SMP variant of arch_futex_atomic_op_inuser()
The generic SMP variant of arch_futex_atomic_op_inuser() returns always -ENOSYS so the switch case and surrounding code are pointless. Remove it and just return -ENOSYS. Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lkml.kernel.org/r/12bdaca8-99eb-e576-f842-5970ab1d6a92@virtuozzo.com
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/futex.h21
1 files changed, 1 insertions, 20 deletions
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index 8666fe7f35d7..02970b11f71f 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -118,26 +118,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
static inline int
arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
{
- int oldval = 0, ret;
-
- 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)
- *oval = oldval;
-
- return ret;
+ return -ENOSYS;
}
static inline int