linux-kernel - ksys_sync

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Message-ID: <ZMdgxYPPRYFipu1e@infradead.org>
Date:   Mon, 31 Jul 2023 00:20:37 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Harry Pan <harry.pan@...el.com>,
        Andrey Grodzovsky <andrey.grodzovsky@....com>,
        Hawking Zhang <Hawking.Zhang@....com>,
        Alex Deucher <alexander.deucher@....com>
Cc:     Christian Brauner <christian@...uner.io>,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: ksys_sync_helper

Guys,

why did b5dee3130bb4014 add a magic export for sync functionality
that wrapps VFS code in a weird way, and then exports it (without
even adding a user in that commit)?   This kind of functionality
needs to be exported from the VFS, and only with ACKs?  With this
and commit d5ea093eebf022e now we end up with a random driver (amdgpu)
syncing all file systems for absolutely no good reason.