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| author |   Vasily Averin <vvs@virtuozzo.com> | 2019-07-16 09:22:03 +0300 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2019-07-22 11:20:10 +0200 |
| commit | f9adc23ee91e6f561bb70c6147d8d45bd164d62f (patch) | |
| tree | f6868fddc5bfe4d4464cb09934f6b2bf1ab2a8b7 /include/asm-generic/futex.h | |
| parent | Linus 5.3-rc1 (diff) | |
| download | linux-dev-f9adc23ee91e6f561bb70c6147d8d45bd164d62f.tar.xz linux-dev-f9adc23ee91e6f561bb70c6147d8d45bd164d62f.zip | |
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/futex.h')
| -rw-r--r-- | include/asm-generic/futex.h | 21 |
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 |