diff options
| author | peterz@infradead.org <peterz@infradead.org> | 2023-09-21 12:45:12 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-09-21 19:22:08 +0200 |
| commit | cb8c4312afca1b2dc64107e7e7cea81911055612 (patch) | |
| tree | 47b639a216151b9f38126bffe53d46cd49cc1e3f /include/uapi/asm-generic | |
| parent | 43adf844951084c266f172561f84c5f8120dd60b (diff) | |
futex: Add sys_futex_wait()
To complement sys_futex_waitv()/wake(), add sys_futex_wait(). This
syscall implements what was previously known as FUTEX_WAIT_BITSET
except it uses 'unsigned long' for the value and bitmask arguments,
takes timespec and clockid_t arguments for the absolute timeout and
uses FUTEX2 flags.
The 'unsigned long' allows FUTEX2_SIZE_U64 on 64bit platforms.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20230921105248.164324363@noisy.programming.kicks-ass.net
Diffstat (limited to 'include/uapi/asm-generic')
| -rw-r--r-- | include/uapi/asm-generic/unistd.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index f5454e6f4c6f..f6553bd5d213 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -824,9 +824,11 @@ __SYSCALL(__NR_cachestat, sys_cachestat) __SYSCALL(__NR_fchmodat2, sys_fchmodat2) #define __NR_futex_wake 454 __SYSCALL(__NR_futex_wake, sys_futex_wake) +#define __NR_futex_wait 455 +__SYSCALL(__NR_futex_wait, sys_futex_wait) #undef __NR_syscalls -#define __NR_syscalls 455 +#define __NR_syscalls 456 /* * 32 bit systems traditionally used different |