Le 27/12/2021 à 15:59, Kefeng Wang a écrit :
> This patch select HAVE_ARCH_HUGE_VMALLOC to let arm64 support huge
> vmalloc mappings.
>
> Cc: Catalin Marinas
> Cc: Will Deacon
> Signed-off-by: Kefeng Wang
> ---
> Documentation/admin-guide/kernel-parameters.txt | 4 ++--
> arch/arm64/Kconfi
Le 27/12/2021 à 15:59, Kefeng Wang a écrit :
> This patch select HAVE_ARCH_HUGE_VMALLOC to let X86_64 and X86_PAE
> support huge vmalloc mappings.
>
> Cc: Thomas Gleixner
> Cc: Ingo Molnar
> Cc: Borislav Petkov
> Cc: Dave Hansen
> Cc: "H. Peter Anvin"
> Signed-off-by: Kefeng Wang
> ---
>
Le 27/12/2021 à 15:59, Kefeng Wang a écrit :
> Huge vmalloc mappings is supported on PPC[1], but this feature should
> be not only used on PPC, it could be used on arch support HAVE_ARCH_HUGE_VMAP
> and PMD sized vmap mappings. this patchset is to enable this feature
> on arm64/x86.
>
> There ar
Le 28/12/2021 à 11:26, Kefeng Wang a écrit :
>
> On 2021/12/27 23:56, Dave Hansen wrote:
>> On 12/27/21 6:59 AM, Kefeng Wang wrote:
>>> This patch select HAVE_ARCH_HUGE_VMALLOC to let X86_64 and X86_PAE
>>> support huge vmalloc mappings.
>> In general, this seems interesting and the diff is simp
Le 28/12/2021 à 17:14, Dave Hansen a écrit :
> On 12/28/21 2:26 AM, Kefeng Wang wrote:
There are some disadvantages about this feature[2], one of the main
concerns is the possible memory fragmentation/waste in some scenarios,
also archs must ensure that any arch specific vmalloc al
Le 29/12/2021 à 12:01, Kefeng Wang a écrit :
>
> On 2021/12/29 0:14, Dave Hansen wrote:
>> On 12/28/21 2:26 AM, Kefeng Wang wrote:
> There are some disadvantages about this feature[2], one of the main
> concerns is the possible memory fragmentation/waste in some scenarios,
> also arc
