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futex: move FUTEX2_VALID_MASK to futex.h

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We need this for validating the futex2 flags outside of the normal
futex syscalls.

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2023-07-21 08:41:27 -06:00
parent 52e856c387
commit 3b07815954
2 changed files with 2 additions and 2 deletions
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2
kernel/futex/futex.h
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@ -52,6 +52,8 @@ static inline unsigned int futex_to_flags(unsigned int op)
return flags;
}
#define FUTEX2_VALID_MASK (FUTEX2_SIZE_MASK | FUTEX2_PRIVATE)
/* FUTEX2_ to FLAGS_ */
static inline unsigned int futex2_to_flags(unsigned int flags2)
{

2
kernel/futex/syscalls.c
View File

@ -179,8 +179,6 @@ SYSCALL_DEFINE6(futex, u32 __user *, uaddr, int, op, u32, val,
return do_futex(uaddr, op, val, tp, uaddr2, (unsigned long)utime, val3);
}
#define FUTEX2_VALID_MASK (FUTEX2_SIZE_MASK | FUTEX2_PRIVATE)
/**
* futex_parse_waitv - Parse a waitv array from userspace
* @futexv: Kernel side list of waiters to be filled