From: Pratyush Yadav <pratyush@kernel.org>
To: Tal Zussman <tz2294@columbia.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Baoquan He <baoquan.he@linux.dev>,
Mike Rapoport <rppt@kernel.org>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
Pratyush Yadav <pratyush@kernel.org>,
Dave Young <ruirui.yang@linux.dev>,
linux-mm@kvack.org, linux-s390@vger.kernel.org,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] vmcore: convert mmap_vmcore_fault() to use folios
Date: Tue, 22 Sep 2026 13:59:06 +0200 [thread overview]
Message-ID: <2vxzh5jh5wfp.fsf@kernel.org> (raw)
In-Reply-To: <20260915-vmcore-fault-folio-v1-1-a0cb6278670f@columbia.edu> (Tal Zussman's message of "Tue, 15 Sep 2026 19:42:15 -0400")
On Tue, Sep 15 2026, Tal Zussman wrote:
> Use a folio for the page cache page the s390 fault handler reads the
> old kernel's memory into. This removes four compound_head() calls and
> one of the last callers of find_or_create_page().
>
> The vmcore mapping only has order-0 folios, so the logic is unchanged.
>
> Compile tested for s390.
>
> Signed-off-by: Tal Zussman <tz2294@columbia.edu>
Acked-by: Pratyush Yadav <pratyush@kernel.org>
[...]
--
Regards,
Pratyush Yadav
next prev parent reply other threads:[~2026-09-22 11:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-15 23:42 [PATCH] vmcore: convert mmap_vmcore_fault() to use folios Tal Zussman
2026-09-15 23:53 ` sashiko-bot
2026-09-22 11:59 ` Pratyush Yadav [this message]
2026-09-23 9:24 ` Mike Rapoport
2026-09-23 15:03 ` Heiko Carstens
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