Commit 3b078159 authored Jul 21, 2023 by Jens Axboe

futex: move FUTEX2_VALID_MASK to futex.h



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>

parent 52e856c3

kernel/futex/futex.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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)
		{

kernel/futex/syscalls.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -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