From: Lorenzo Stoakes <ljs@kernel.org>
To: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Michal Hocko <mhocko@suse.com>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@kernel.org>,
Christian Brauner <brauner@kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
Jan Kara <jack@suse.cz>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Vlastimil Babka <vbabka@kernel.org>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH RFC] fs: drop_caches: introduce per-node drop_caches interface
Date: Thu, 9 Apr 2026 09:30:51 +0100 [thread overview]
Message-ID: <addjLJ9MVTNQD7YZ@lucifer> (raw)
In-Reply-To: <dbb92553-58ba-42e1-b7df-b8450bd69d33@huawei.com>
On Thu, Apr 09, 2026 at 04:08:37PM +0800, Kefeng Wang wrote:
> On 4/9/2026 3:06 PM, Michal Hocko wrote:
> > Quite honestly drop_caches is not the best interface to build any new
> > functionality on top of. It has backfired a lot in the past and we have
> > tried to make it extra clear that this should be used for debugging
> > purposes only. Extending it further sounds like a bad step.
>
> I am not clear about this history of this interface, but some of our
> products do use this interface :(
All the more reason for us not to add another one like it...!
prev parent reply other threads:[~2026-04-09 8:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-09 6:35 Kefeng Wang
2026-04-09 7:06 ` Michal Hocko
2026-04-09 7:19 ` Lorenzo Stoakes
2026-04-09 8:21 ` Kefeng Wang
2026-04-09 8:27 ` Lorenzo Stoakes
2026-04-09 8:08 ` Kefeng Wang
2026-04-09 8:22 ` Michal Hocko
2026-04-09 8:54 ` Kefeng Wang
2026-04-09 10:52 ` Michal Hocko
2026-04-09 8:30 ` Lorenzo Stoakes [this message]
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=addjLJ9MVTNQD7YZ@lucifer \
--to=ljs@kernel.org \
--cc=Liam.Howlett@oracle.com \
--cc=akpm@linux-foundation.org \
--cc=brauner@kernel.org \
--cc=david@kernel.org \
--cc=jack@suse.cz \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mhocko@suse.com \
--cc=rppt@kernel.org \
--cc=surenb@google.com \
--cc=vbabka@kernel.org \
--cc=viro@zeniv.linux.org.uk \
--cc=wangkefeng.wang@huawei.com \
--cc=willy@infradead.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