Re: (No subject)

[Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>]

On 2021/12/28 1:35, William Kucharski wrote:
> You should also fix the existing typo in the documentation (inline):
>
> > On Dec 27, 2021, at 07:49, Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> wrote:
> >
> > This patch select HAVE_ARCH_HUGE_VMALLOC to let arm64 support huge
> > vmalloc mappings.
> >
> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> > Cc: Will Deacon <will@xxxxxxxxxx>
> > Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
> > ---
> > Documentation/admin-guide/kernel-parameters.txt | 4 ++--
> > arch/arm64/Kconfig                              | 1 +
> > arch/arm64/kernel/module.c                      | 5 +++--
> > 3 files changed, 6 insertions(+), 4 deletions(-)
> >
> > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> > index 7b2f900fd243..e3f9fd7ec106 100644
> > --- a/Documentation/admin-guide/kernel-parameters.txt
> > +++ b/Documentation/admin-guide/kernel-parameters.txt
> > @@ -1639,7 +1639,7 @@
> >             precedence over memory_hotplug.memmap_on_memory.
> >
> >
> > -    hugevmalloc=    [PPC] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC
> > +    hugevmalloc=    [KNL,PPC,ARM64] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC
> >             Format: { on | off }
> >             Default set by CONFIG_HUGE_VMALLOC_DEFAULT_ENABLED.
> "Reguires" should be "Requires."
Will fix, thanks.
> > @@ -3424,7 +3424,7 @@
> >
> >     nohugeiomap    [KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings.
> >
> > -    nohugevmalloc    [PPC] Disable kernel huge vmalloc mappings.
> > +    nohugevmalloc    [KNL,PPC,ARM64] Disable kernel huge vmalloc mappings.
> >
> >     nosmt        [KNL,S390] Disable symmetric multithreading (SMT).
> >             Equivalent to smt=1.
> > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> > index 3bb0b67292b5..c34bbb4482b0 100644
> > --- a/arch/arm64/Kconfig
> > +++ b/arch/arm64/Kconfig
> > @@ -142,6 +142,7 @@ config ARM64
> >     select HAVE_ARCH_AUDITSYSCALL
> >     select HAVE_ARCH_BITREVERSE
> >     select HAVE_ARCH_COMPILER_H
> > +    select HAVE_ARCH_HUGE_VMALLOC
> >     select HAVE_ARCH_HUGE_VMAP
> >     select HAVE_ARCH_JUMP_LABEL
> >     select HAVE_ARCH_JUMP_LABEL_RELATIVE
> > diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
> > index 309a27553c87..af7b4cbace2b 100644
> > --- a/arch/arm64/kernel/module.c
> > +++ b/arch/arm64/kernel/module.c
> > @@ -36,7 +36,8 @@ void *module_alloc(unsigned long size)
> >         module_alloc_end = MODULES_END;
> >
> >     p = __vmalloc_node_range(size, MODULE_ALIGN, module_alloc_base,
> > -                module_alloc_end, gfp_mask, PAGE_KERNEL, VM_DEFER_KMEMLEAK,
> > +                module_alloc_end, gfp_mask, PAGE_KERNEL,
> > +                VM_DEFER_KMEMLEAK | VM_NO_HUGE_VMAP,
> >                 NUMA_NO_NODE, __builtin_return_address(0));
> >
> >     if (!p && IS_ENABLED(CONFIG_ARM64_MODULE_PLTS) &&
> > @@ -55,7 +56,7 @@ void *module_alloc(unsigned long size)
> >          */
> >         p = __vmalloc_node_range(size, MODULE_ALIGN, module_alloc_base,
> >                 module_alloc_base + SZ_2G, GFP_KERNEL,
> > -                PAGE_KERNEL, 0, NUMA_NO_NODE,
> > +                PAGE_KERNEL, VM_NO_HUGE_VMAP, NUMA_NO_NODE,
> >                 __builtin_return_address(0));
> >
> >     if (p && (kasan_module_alloc(p, size, gfp_mask) < 0)) {
> > --
> > 2.26.2