* (No Subject)
@ 2025-09-19 20:07 Daniel G. Chultaeiz
0 siblings, 0 replies; 3+ messages in thread
From: Daniel G. Chultaeiz @ 2025-09-19 20:07 UTC (permalink / raw)
To: linux-mm
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: (No subject)
2021-12-27 17:35 ` (No subject) William Kucharski
@ 2021-12-28 1:36 ` Kefeng Wang
0 siblings, 0 replies; 3+ messages in thread
From: Kefeng Wang @ 2021-12-28 1:36 UTC (permalink / raw)
To: William Kucharski
Cc: Jonathan Corbet, Andrew Morton, linuxppc-dev, linux-doc,
linux-kernel, linux-mm, x86, linux-arm-kernel, Nicholas Piggin,
Catalin Marinas, Will Deacon, Thomas Gleixner, Ingo Molnar,
Borislav Petkov, Dave Hansen, H. Peter Anvin, Michael Ellerman,
Benjamin Herrenschmidt, Paul Mackerras, Christophe Leroy,
Matthew Wilcox
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@huawei.com> wrote:
>>
>> This patch select HAVE_ARCH_HUGE_VMALLOC to let arm64 support huge
>> vmalloc mappings.
>>
>> Cc: Catalin Marinas <catalin.marinas@arm.com>
>> Cc: Will Deacon <will@kernel.org>
>> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
>> ---
>> 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
>>
>>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: (No subject)
2021-12-27 14:59 [PATCH v2 2/3] arm64: Support huge vmalloc mappings Kefeng Wang
@ 2021-12-27 17:35 ` William Kucharski
2021-12-28 1:36 ` Kefeng Wang
0 siblings, 1 reply; 3+ messages in thread
From: William Kucharski @ 2021-12-27 17:35 UTC (permalink / raw)
To: Kefeng Wang
Cc: Jonathan Corbet, Andrew Morton, linuxppc-dev, linux-doc,
linux-kernel, linux-mm, x86, linux-arm-kernel, Nicholas Piggin,
Catalin Marinas, Will Deacon, Thomas Gleixner, Ingo Molnar,
Borislav Petkov, Dave Hansen, H. Peter Anvin, Michael Ellerman,
Benjamin Herrenschmidt, Paul Mackerras, Christophe Leroy,
Matthew Wilcox
You should also fix the existing typo in the documentation (inline):
> On Dec 27, 2021, at 07:49, Kefeng Wang <wangkefeng.wang@huawei.com> wrote:
>
> This patch select HAVE_ARCH_HUGE_VMALLOC to let arm64 support huge
> vmalloc mappings.
>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will@kernel.org>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
> ---
> 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."
>
> @@ -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
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2021-12-27 14:59 [PATCH v2 2/3] arm64: Support huge vmalloc mappings Kefeng Wang
2021-12-27 17:35 ` (No subject) William Kucharski
2021-12-28 1:36 ` Kefeng Wang
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