From: Mike Kravetz <mike.kravetz@oracle.com>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: "Thomas Weißschuh" <linux@weissschuh.net>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Christian Brauner" <brauner@kernel.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, "Willy Tarreau" <w@lwt.eu>,
"Zhangjin Wu" <falcon@tinylab.org>
Subject: Re: [PATCH] mm: make MEMFD_CREATE into a selectable config option
Date: Mon, 3 Jul 2023 15:48:03 -0700 [thread overview]
Message-ID: <20230703224803.GF4378@monkey> (raw)
In-Reply-To: <20230630153236.GD11423@frogsfrogsfrogs>
On 06/30/23 08:32, Darrick J. Wong wrote:
> On Fri, Jun 30, 2023 at 11:08:53AM +0200, Thomas Weißschuh wrote:
> > The memfd_create() syscall, enabled by CONFIG_MEMFD_CREATE, is useful on
> > its own even when not required by CONFIG_TMPFS or CONFIG_HUGETLBFS.
>
> If you don't have tmpfs or hugetlbfs enabled, then what fs ends up
> backing the file returned by memfd_create()? ramfs?
>
> (Not an objection, I'm just curious...)
>
It looks like shmem/tmpfs falls back to ramfs?
--
Mike Kravetz
prev parent reply other threads:[~2023-07-03 22:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-30 9:08 Thomas Weißschuh
2023-06-30 13:38 ` Zhangjin Wu
2023-06-30 15:32 ` Darrick J. Wong
2023-06-30 19:55 ` Thomas Weißschuh
2023-07-03 22:48 ` Mike Kravetz [this message]
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