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 --- arch/powerpc/perf/internal.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 arch/powerpc/perf/internal.h (limited to 'arch/powerpc/perf/internal.h') diff --git a/arch/powerpc/perf/internal.h b/arch/powerpc/perf/internal.h new file mode 100644 index 000000000..84d6ca209 --- /dev/null +++ b/arch/powerpc/perf/internal.h @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// Copyright 2019 Madhavan Srinivasan, IBM Corporation. + +int __init init_ppc970_pmu(void); +int __init init_power5_pmu(void); +int __init init_power5p_pmu(void); +int __init init_power6_pmu(void); +int __init init_power7_pmu(void); +int __init init_power8_pmu(void); +int __init init_power9_pmu(void); +int __init init_power10_pmu(void); +int __init init_power11_pmu(void); +int __init init_power12_pmu(void); +int __init init_generic_compat_pmu(void); -- cgit v1.3.1