From bdab18633a302c82b5e5d5dbc4e38b0baf9c0837 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 20 Sep 2026 08:15:23 -0700 Subject: Merge tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull futex fix from Ingo Molnar: - Also allocate a default private futex hash on vfork() as well, to avoid races with (private) futex waiters (Peter Zijlstra) * tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex: Also allocate private hash on vfork() --- include/asm-generic/simd.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 include/asm-generic/simd.h (limited to 'include/asm-generic/simd.h') diff --git a/include/asm-generic/simd.h b/include/asm-generic/simd.h new file mode 100644 index 000000000..70c8716ad --- /dev/null +++ b/include/asm-generic/simd.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_GENERIC_SIMD_H +#define _ASM_GENERIC_SIMD_H + +#include +#include +#include +#include + +/* + * may_use_simd - whether it is allowable at this time to issue SIMD + * instructions or access the SIMD register file + * + * As architectures typically don't preserve the SIMD register file when + * taking an interrupt, !in_interrupt() should be a reasonable default. + */ +static __must_check inline bool may_use_simd(void) +{ + return !in_interrupt(); +} + +#endif /* _ASM_GENERIC_SIMD_H */ -- cgit v1.3.1