From: Linus Torvalds <torvalds@linux-foundation.org>
To: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux API <linux-api@vger.kernel.org>,
Michal Hocko <mhocko@suse.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
Roman Gushchin <guro@fb.com>
Subject: Re: [PATCH RFC] fs/fcntl: add fcntl F_GET_RSS
Date: Mon, 28 Oct 2019 13:27:32 +0100 [thread overview]
Message-ID: <CAHk-=wiCDPd1ivoU5BJBMSt5cmKnX0XFWiinfegyknfoipif0g@mail.gmail.com> (raw)
In-Reply-To: <157225848971.557.16257813537984792761.stgit@buzz>
On Mon, Oct 28, 2019 at 11:28 AM Konstantin Khlebnikov
<khlebnikov@yandex-team.ru> wrote:
>
> This implements fcntl() for getting amount of resident memory in cache.
> Kernel already maintains counter for each inode, this patch just exposes
> it into userspace. Returned size is in kilobytes like values in procfs.
This doesn't actually explain why anybody would want it, and what the
usage scenario is.
Linus
next prev parent reply other threads:[~2019-10-28 12:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-28 10:28 Konstantin Khlebnikov
2019-10-28 11:10 ` Matthew Wilcox
2019-10-28 11:20 ` Konstantin Khlebnikov
2019-10-28 11:46 ` Florian Weimer
2019-10-28 12:55 ` Konstantin Khlebnikov
2019-10-28 13:05 ` Florian Weimer
2019-10-28 12:27 ` Linus Torvalds [this message]
2019-10-28 12:49 ` Konstantin Khlebnikov
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