Excerpts from Dave Hansen's message of January 19, 2022 3:28 am:
> On 1/17/22 6:46 PM, Nicholas Piggin wrote:
>>> This all sounds very fragile to me. Every time a new architecture would
>>> get added for huge vmalloc() support, the developer needs to know to go
>>> find that architecture's module_
On 1/17/22 6:46 PM, Nicholas Piggin wrote:
>> This all sounds very fragile to me. Every time a new architecture would
>> get added for huge vmalloc() support, the developer needs to know to go
>> find that architecture's module_alloc() and add this flag.
> This is documented in the Kconfig.
>
>
Excerpts from Dave Hansen's message of December 29, 2021 2:14 am:
> 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
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
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 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 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
> ---
>
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 allocations that
>>> require PAGE_SIZE mappings(eg, mo
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 simple. But, I don't
see _any_ x86-specific data. I think the bare minimum here would be a
few kernel c
