diff mbox series

[v7,bpf-next,1/9] x86/Kconfig: select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP

Message ID 20220128234517.3503701-2-song@kernel.org (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series bpf_prog_pack allocator | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for bpf-next
netdev/apply fail Patch does not apply to bpf-next
bpf/vmtest-bpf-next-PR fail merge-conflict

Commit Message

Song Liu Jan. 28, 2022, 11:45 p.m. UTC 
From: Song Liu <songliubraving@fb.com>

This enables module_alloc() to allocate huge page for 2MB+ requests.
To check the difference of this change, we need enable config
CONFIG_PTDUMP_DEBUGFS, and call module_alloc(2MB). Before the change,
/sys/kernel/debug/page_tables/kernel shows pte for this map. With the
change, /sys/kernel/debug/page_tables/ show pmd for thie map.

Signed-off-by: Song Liu <songliubraving@fb.com>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8910b09b5601..b5d1582ea848 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -158,6 +158,7 @@  config X86
 	select HAVE_ALIGNED_STRUCT_PAGE		if SLUB
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_HUGE_VMAP		if X86_64 || X86_PAE
+	select HAVE_ARCH_HUGE_VMALLOC		if HAVE_ARCH_HUGE_VMAP
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_JUMP_LABEL_RELATIVE
 	select HAVE_ARCH_KASAN			if X86_64