From: Andrew Morton <akpm@linux-foundation.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
Christophe Leroy <christophe.leroy@c-s.fr>,
linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Mike Rapoport <rppt@linux.ibm.com>
Subject: Re: [PATCH] powerpc/8xx: use pmd_off() to access a PMD entry in pte_update()
Date: Tue, 16 Jun 2020 12:43:04 -0700 [thread overview]
Message-ID: <20200616124304.bbe36933fcd48c5f467f4be9@linux-foundation.org> (raw)
In-Reply-To: <20200615092229.23142-1-rppt@kernel.org>
On Mon, 15 Jun 2020 12:22:29 +0300 Mike Rapoport <rppt@kernel.org> wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The pte_update() implementation for PPC_8xx unfolds page table from the PGD
> level to access a PMD entry. Since 8xx has only 2-level page table this can
> be simplified with pmd_off() shortcut.
>
> Replace explicit unfolding with pmd_off() and drop defines of pgd_index()
> and pgd_offset() that are no longer needed.
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> ---
>
> I think it's powerpc material, but I won't mind if Andrew picks it up :)
Via the powerpc tree would be better, please.
next prev parent reply other threads:[~2020-06-16 19:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-15 9:22 [PATCH] powerpc/8xx: use pmd_off() to access a PMD entry in pte_update() Mike Rapoport
2020-06-15 9:32 ` Christophe Leroy
2020-06-16 19:43 ` Andrew Morton [this message]
2020-06-16 23:21 ` Michael Ellerman
2020-06-17 4:16 ` Mike Rapoport
2020-06-17 13:05 ` Michael Ellerman
2020-06-18 12:37 ` Michael Ellerman
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=20200616124304.bbe36933fcd48c5f467f4be9@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=christophe.leroy@c-s.fr \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=rppt@kernel.org \
--cc=rppt@linux.ibm.com \
/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;
as well as URLs for NNTP newsgroup(s).