From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes Skip the xarray reservation loop when clearing all memory attributes, as storing NULL only erases the entry and never needs to allocate, so no reservation (and no cleanup of a failed one) is required in that case. Suggested-by: Sean Christopherson Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- include/uapi/asm-generic/int-ll64.h | 40 +++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 include/uapi/asm-generic/int-ll64.h (limited to 'include/uapi/asm-generic/int-ll64.h') diff --git a/include/uapi/asm-generic/int-ll64.h b/include/uapi/asm-generic/int-ll64.h new file mode 100644 index 000000000..1ed069642 --- /dev/null +++ b/include/uapi/asm-generic/int-ll64.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * asm-generic/int-ll64.h + * + * Integer declarations for architectures which use "long long" + * for 64-bit types. + */ + +#ifndef _UAPI_ASM_GENERIC_INT_LL64_H +#define _UAPI_ASM_GENERIC_INT_LL64_H + +#include + +#ifndef __ASSEMBLY__ +/* + * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the + * header files exported to user space + */ + +typedef __signed__ char __s8; +typedef unsigned char __u8; + +typedef __signed__ short __s16; +typedef unsigned short __u16; + +typedef __signed__ int __s32; +typedef unsigned int __u32; + +#ifdef __GNUC__ +__extension__ typedef __signed__ long long __s64; +__extension__ typedef unsigned long long __u64; +#else +typedef __signed__ long long __s64; +typedef unsigned long long __u64; +#endif + +#endif /* __ASSEMBLY__ */ + + +#endif /* _UAPI_ASM_GENERIC_INT_LL64_H */ -- cgit v1.3.1