diff options
| author | peterz@infradead.org <peterz@infradead.org> | 2023-09-21 13:45:10 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-09-21 20:22:07 +0300 |
| commit | 9f6c532f59b20580acf8ede9409c9b8dce6e74e1 (patch) | |
| tree | a0ace6e28ec4b23343056bd4b889214ac2777d83 /include | |
| parent | 698eb826383616ce0e817d2384da6413d1439fb6 (diff) | |
| download | linux-9f6c532f59b20580acf8ede9409c9b8dce6e74e1.tar.xz | |
futex: Add sys_futex_wake()
To complement sys_futex_waitv() add sys_futex_wake(). This syscall
implements what was previously known as FUTEX_WAKE_BITSET except it
uses 'unsigned long' for the bitmask and takes 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/20230921105247.936205525@noisy.programming.kicks-ass.net
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/syscalls.h | 3 | ||||
| -rw-r--r-- | include/uapi/asm-generic/unistd.h | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 22bc6bc147f8..e174ed86da1d 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -549,6 +549,9 @@ asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, asmlinkage long sys_futex_waitv(struct futex_waitv *waiters, unsigned int nr_futexes, unsigned int flags, struct __kernel_timespec __user *timeout, clockid_t clockid); + +asmlinkage long sys_futex_wake(void __user *uaddr, unsigned long mask, int nr, unsigned int flags); + asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, struct __kernel_timespec __user *rmtp); asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index abe087c53b4b..f5454e6f4c6f 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -822,9 +822,11 @@ __SYSCALL(__NR_cachestat, sys_cachestat) #define __NR_fchmodat2 452 __SYSCALL(__NR_fchmodat2, sys_fchmodat2) +#define __NR_futex_wake 454 +__SYSCALL(__NR_futex_wake, sys_futex_wake) #undef __NR_syscalls -#define __NR_syscalls 453 +#define __NR_syscalls 455 /* * 32 bit systems traditionally used different |