iommu/vt-d: Fix PCI device refcount leak in prq_event_thread()

[platform/kernel/linux-starfive.git] / arch / Kconfig

diff --git a/arch/Kconfig b/arch/Kconfig
index 2668624..8f138e5 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1416,6 +1416,14 @@ config DYNAMIC_SIGFRAME
 config HAVE_ARCH_NODE_DEV_GROUP
        bool
 
+config ARCH_HAS_NONLEAF_PMD_YOUNG
+       bool
+       help
+         Architectures that select this option are capable of setting the
+         accessed bit in non-leaf PMD entries when using them as part of linear
+         address translations. Page table walkers that clear the accessed bit
+         may use this capability to reduce their search space.
+
 source "kernel/gcov/Kconfig"
 
 source "scripts/gcc-plugins/Kconfig"