linux-kernel - Re: [PATCH v2 2/2] vfs: don't allow writes to swap files

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Message-ID: <20190818083937.GC13583@infradead.org>
Date:   Sun, 18 Aug 2019 01:39:37 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     hch@...radead.org, akpm@...ux-foundation.org, tytso@....edu,
        viro@...iv.linux.org.uk, linux-xfs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH v2 2/2] vfs: don't allow writes to swap files

On Fri, Aug 16, 2019 at 09:19:49AM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@...cle.com>
> 
> Don't let userspace write to an active swap file because the kernel
> effectively has a long term lease on the storage and things could get
> seriously corrupted if we let this happen.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>

Looks good,

Reviewed-by: Christoph Hellwig <hch@....de>