linux-ext4 - Re: [PATCH 3/4] ubifs: don't bother checking for encryption key in ->mmap()

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Message-ID: <CAFLxGvxaiWFKH5L_BwPXGuG9PxA+0BkJ1qMvaDgAeVwBw+nCoQ@mail.gmail.com>
Date:   Tue, 23 May 2017 16:14:20 +0200
From:   Richard Weinberger <richard.weinberger@...il.com>
To:     Eric Biggers <ebiggers3@...il.com>
Cc:     linux-fscrypt@...r.kernel.org, "Theodore Ts'o" <tytso@....edu>,
        Eric Biggers <ebiggers@...gle.com>,
        linux-f2fs-devel@...ts.sourceforge.net,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        Jaegeuk Kim <jaegeuk@...nel.org>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 3/4] ubifs: don't bother checking for encryption key in ->mmap()

On Tue, May 23, 2017 at 2:39 AM, Eric Biggers <ebiggers3@...il.com> wrote:
> From: Eric Biggers <ebiggers@...gle.com>
>
> Since only an open file can be mmap'ed, and we only allow open()ing an
> encrypted file when its key is available, there is no need to check for
> the key again before permitting each mmap().
>
> Signed-off-by: Eric Biggers <ebiggers@...gle.com>

Acked-by: Richard Weinberger <richard@....at>

-- 
Thanks,
//richard