On 5/13/25 14:01, Christoph Hellwig wrote:
> On Tue, May 13, 2025 at 01:57:20PM +0800, Chao Yu wrote:
>> .init_{,de}compress_ctx uses kvmalloc() to alloc memory, it will try
>> to allocate physically continuous page first, it may cause more memory
>> allocation pressure, let's use vmalloc instead to mitigate it.
>
> Shouldn't this be handled in kvmalloc instead of working around it in
> callers?
kvmalloc() will allocate physically continuous page first, so it may race
w/ other physically continuous page allocator who uses kmalloc(), in
scenario of there are few physically continuous pages.
Thanks,
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