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Message-ID: <e4748b18-3de3-b3f9-464a-e5cfcf9f05d4@redhat.com>
Date: Tue, 21 Dec 2021 19:48:05 +0100
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Subject: Re: [PATCH 1/2] mm/cma: provide option to opt out from exposing pages
 on activation failure
To: Hari Bathini <hbathini@linux.ibm.com>, akpm@linux-foundation.org,
 linux-mm@kvack.org, mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org
References: <20211220193419.104242-1-hbathini@linux.ibm.com>
 <20211220193419.104242-2-hbathini@linux.ibm.com>
From: David Hildenbrand <david@redhat.com>
Organization: Red Hat
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On 20.12.21 20:34, Hari Bathini wrote:
> Commit 072355c1cf2d ("mm/cma: expose all pages to the buddy if
> activation of an area fails") started exposing all pages to buddy
> allocator on CMA activation failure. But there can be CMA users that
> want to handle the reserved memory differently on CMA allocation
> failure. Provide an option to opt out from exposing pages to buddy
> for such cases.

Can you elaborate why that is important and what the target user can
actually do with it?

It certainly cannot do CMA allocations :)

-- 
Thanks,

David / dhildenb