From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
To: Imre Kaloz <kaloz@kernel.org>, Andreas Larsson <andreas@gaisler.com>
Cc: "David S. Miller" <davem@davemloft.net>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
"Mike Rapoport (IBM)" <rppt@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v2 1/2] sparc64: flush only the aliased page, not its whole folio
Date: Sat, 17 Oct 2026 12:34:02 +0200 [thread overview]
Message-ID: <cf92126e6c10883ace50789869a45dada32e4859.camel@physik.fu-berlin.de> (raw)
In-Reply-To: <c74a2d45-2267-b380-c7fe-b6a2d3f8251b@kernel.org>
Hi,
On Thu, 2026-10-15 at 21:26 +0200, Imre Kaloz wrote:
> I like the nr idea. Since sparc64 is the only user of move_pte(), it
> would be a small change: move_ptes() would pass nr_ptes, the generic
> version would ignore it, and sparc64 would flush every aliased page in
> the batch. I’d still keep it as a separate patch on top of this one,
> though, so the fix can go to stable as a plain sparc64 backport.
>
> Matthew, Mike, Andrew, would you be fine with move_pte() taking nr?
With the merge window for v7.4 likely opening on Monday, I hope we can
still get these two patches squeezed in as my latest tests showed that
the kernel would crash very early on my V240 test server without these
two patches applied.
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
next prev parent reply other threads:[~2026-10-17 10:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-28 13:21 [PATCH v2 0/2] sparc64: D-cache alias flushing fixes Imre Kaloz
2026-09-28 13:21 ` [PATCH v2 1/2] sparc64: flush only the aliased page, not its whole folio Imre Kaloz
2026-10-15 14:46 ` Andreas Larsson
2026-10-15 19:26 ` Imre Kaloz
2026-10-17 10:34 ` John Paul Adrian Glaubitz [this message]
2026-09-28 13:21 ` [PATCH v2 2/2] sparc64: flush vmalloc ranges from the D-cache on map and unmap Imre Kaloz
2026-10-11 9:33 ` [PATCH v2 0/2] sparc64: D-cache alias flushing fixes John Paul Adrian Glaubitz
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