From: Jason Gunthorpe <jgg@nvidia.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: Pratyush Yadav <me@yadavpratyush.com>,
Pratyush Yadav <pratyush@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Graf <graf@amazon.com>, Baoquan He <bhe@redhat.com>,
Changyuan Lyu <changyuanl@google.com>,
Chris Li <chrisl@kernel.org>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
kexec@lists.infradead.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 1/2] kho: add support for preserving vmalloc allocations
Date: Mon, 15 Sep 2025 11:43:35 -0300 [thread overview]
Message-ID: <20250915144335.GL1024672@nvidia.com> (raw)
In-Reply-To: <aMgey9qEC_XUejXm@kernel.org>
On Mon, Sep 15, 2025 at 05:12:27PM +0300, Mike Rapoport wrote:
> > I don't suppose I'd insist on it, but something to consider since you
> > are likely going to do another revision anyway.
>
> I think vmalloc is as basic as folio.
vmalloc() ultimately calls vm_area_alloc_pages() -> alloc_pages_bulk_node_noprof()
KHO should have functions that clearly pair with the low level
allocators struct page related allocators, alloc_pages(order),
folio_alloc(), etc etc
ie if you call this allocator X then you call this kho preserve, this
kho restore, and this free function Y.
Under the covers it all uses the generic folio based code we already
have, but we should have appropriate wrappers around that code that
make clear these patterns.
Jason
next prev parent reply other threads:[~2025-09-15 14:43 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-08 10:35 [PATCH v3 0/2] " Mike Rapoport
2025-09-08 10:35 ` [PATCH v3 1/2] " Mike Rapoport
2025-09-08 14:14 ` Jason Gunthorpe
2025-09-15 14:01 ` Mike Rapoport
2025-09-15 14:37 ` Jason Gunthorpe
2025-09-15 16:11 ` Mike Rapoport
2025-09-08 18:12 ` Pratyush Yadav
2025-09-08 18:18 ` Jason Gunthorpe
2025-09-09 14:33 ` Pratyush Yadav
2025-09-15 14:12 ` Mike Rapoport
2025-09-15 14:43 ` Jason Gunthorpe [this message]
2025-09-15 16:36 ` Mike Rapoport
2025-09-16 13:05 ` Jason Gunthorpe
2025-09-16 13:21 ` Pratyush Yadav
2025-09-16 14:34 ` Mike Rapoport
2025-09-16 12:48 ` Pratyush Yadav
2025-09-16 14:41 ` Mike Rapoport
2025-09-15 14:08 ` Mike Rapoport
2025-09-16 12:43 ` Pratyush Yadav
2025-09-08 10:35 ` [PATCH v3 2/2] lib/test_kho: use kho_preserve_vmalloc instead of storing addresses in fdt Mike Rapoport
-- strict thread matches above, loose matches on Subject: below --
2025-09-07 7:00 [PATCH v2 0/2] kho: add support for preserving vmalloc allocations Mike Rapoport
2025-09-07 7:00 ` [PATCH v3 1/2] " Mike Rapoport
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250915144335.GL1024672@nvidia.com \
--to=jgg@nvidia.com \
--cc=akpm@linux-foundation.org \
--cc=bhe@redhat.com \
--cc=changyuanl@google.com \
--cc=chrisl@kernel.org \
--cc=graf@amazon.com \
--cc=kexec@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=me@yadavpratyush.com \
--cc=pasha.tatashin@soleen.com \
--cc=pratyush@kernel.org \
--cc=rppt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox