From: Florian Weimer <fw@deneb.enyo.de>
To: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, 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>,
Linus Torvalds <torvalds@linux-foundation.org>,
Roman Gushchin <guro@fb.com>
Subject: Re: [PATCH RFC] fs/fcntl: add fcntl F_GET_RSS
Date: Mon, 28 Oct 2019 12:46:39 +0100 [thread overview]
Message-ID: <87k18p6qjk.fsf@mid.deneb.enyo.de> (raw)
In-Reply-To: <157225848971.557.16257813537984792761.stgit@buzz> (Konstantin Khlebnikov's message of "Mon, 28 Oct 2019 13:28:09 +0300")
* Konstantin Khlebnikov:
> 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.
I think this needs a 32-bit compat implementation which clamps the
returned value to INT_MAX.
next prev parent reply other threads:[~2019-10-28 11:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-28 10:28 [PATCH RFC] fs/fcntl: add fcntl F_GET_RSS Konstantin Khlebnikov
2019-10-28 11:10 ` Matthew Wilcox
2019-10-28 11:20 ` Konstantin Khlebnikov
2019-10-28 11:46 ` Florian Weimer [this message]
2019-10-28 12:55 ` Konstantin Khlebnikov
2019-10-28 13:05 ` Florian Weimer
2019-10-28 12:27 ` Linus Torvalds
2019-10-28 12:49 ` Konstantin Khlebnikov
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