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| author |   Song Liu <songliubraving@fb.com> | 2022-02-04 10:57:34 -0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2022-02-07 18:13:01 -0800 |
| commit | fac54e2bfb5be2b0bbf115fe80d45f59fd773048 (patch) | |
| tree | 87fa7c0e11cd4a771ecf443e82cc4747fc88d7b5 | |
| parent | Merge branch 'bpf: Fix strict mode calculation' (diff) | |
| download | linux-rng-fac54e2bfb5be2b0bbf115fe80d45f59fd773048.tar.xz linux-rng-fac54e2bfb5be2b0bbf115fe80d45f59fd773048.zip | |
x86/Kconfig: Select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP
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>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220204185742.271030-2-song@kernel.org
| -rw-r--r-- | arch/x86/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 6fddb63271d9..e0e0d00cf103 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -159,6 +159,7 @@ 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 |