2023-06-24 06:18:33

by Samuel Holland

[permalink] [raw]
Subject: [PATCH] riscv: Select HAVE_ARCH_USERFAULTFD_MINOR

This allocates the VM flag needed to support the userfaultfd minor fault
functionality. Because the flag bit is >= bit 32, it can only be enabled
for 64-bit kernels. See commit 7677f7fd8be7 ("userfaultfd: add minor
fault registration mode") for more information.

Signed-off-by: Samuel Holland <[email protected]>
---

arch/riscv/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 5966ad97c30c..21e864fa93db 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -97,6 +97,7 @@ config RISCV
select HAVE_ARCH_THREAD_STRUCT_WHITELIST
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT && MMU
+ select HAVE_ARCH_USERFAULTFD_MINOR if 64BIT && USERFAULTFD
select HAVE_ARCH_VMAP_STACK if MMU && 64BIT
select HAVE_ASM_MODVERSIONS
select HAVE_CONTEXT_TRACKING_USER
--
2.40.1



Subject: Re: [PATCH] riscv: Select HAVE_ARCH_USERFAULTFD_MINOR

Hello:

This patch was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <[email protected]>:

On Fri, 23 Jun 2023 23:03:20 -0700 you wrote:
> This allocates the VM flag needed to support the userfaultfd minor fault
> functionality. Because the flag bit is >= bit 32, it can only be enabled
> for 64-bit kernels. See commit 7677f7fd8be7 ("userfaultfd: add minor
> fault registration mode") for more information.
>
> Signed-off-by: Samuel Holland <[email protected]>
>
> [...]

Here is the summary with links:
- riscv: Select HAVE_ARCH_USERFAULTFD_MINOR
https://git.kernel.org/riscv/c/a2492ca86c98

You are awesome, thank you!
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