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From: Nikolaus Rath <Nikolaus@rath.org>
To: Linux FS Devel <linux-fsdevel@vger.kernel.org>,
	miklos <mszeredi@redhat.com>
Subject: Should FUSE set IO_FLUSHER for the userspace process?
Date: Sun, 18 Sep 2022 12:03:04 +0100	[thread overview]
Message-ID: <87mtaxt05z.fsf@vostro.rath.org> (raw)

Hi,

Should the FUSE kernel driver perhaps set PR_SET_IO_FLUSHER for the FUSE
userspace process daemon when a connection is opened?

If I understand correctly, this is necessary to avoid a deadlocks if the
kernel needs to reclaim memory that has to be written back through FUSE.

I don't think it's possible to do this in userspace, since the process
may lack the necessary capabilities.

Best,
-Nikolaus

-- 
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             »Time flies like an arrow, fruit flies like a Banana.«

             reply	other threads:[~2022-09-18 11:03 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-18 11:03 Nikolaus Rath [this message]
2022-09-18 12:52 ` Should FUSE set IO_FLUSHER for the userspace process? Amir Goldstein
2022-09-19  9:20 ` Miklos Szeredi
2022-10-25 15:38   ` Antonio SJ Musumeci
2022-10-26 11:58     ` Miklos Szeredi
2022-10-26 12:17       ` Miklos Szeredi

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