linux-ext4 - Re: [PATCH] fscrypto: lock inode while setting encryption policy

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Message-ID: <20161015135401.3lc3liibnigf5seq@thunk.org>
Date:   Sat, 15 Oct 2016 09:54:01 -0400
From:   Theodore Ts'o <tytso@....edu>
To:     Richard Weinberger <richard@....at>
Cc:     Eric Biggers <ebiggers@...gle.com>, linux-fsdevel@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        jaegeuk@...nel.org
Subject: Re: [PATCH] fscrypto: lock inode while setting encryption policy

On Thu, Sep 29, 2016 at 07:20:20PM +0200, Richard Weinberger wrote:
> On 28.09.2016 20:34, Eric Biggers wrote:
> > i_rwsem needs to be acquired while setting an encryption policy so that
> > concurrent calls to FS_IOC_SET_ENCRYPTION_POLICY are correctly
> > serialized (especially the ->get_context() + ->set_context() pair), and
> > so that new files cannot be created in the directory during or after the
> > ->empty_dir() check.
> > 
> > Signed-off-by: Eric Biggers <ebiggers@...gle.com>
> 
> Reviewed-by: Richard Weinberger <richard@....at>

Thanks, applied.

					- Ted
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