linux-ext4 - Re: [PATCH 3/3] fscrypt: consolidate fscrypt_has_permitted

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Message-ID: <5de5b934-5709-ca29-c277-99d93539b1c0@nod.at>
Date:   Fri, 16 Dec 2016 13:22:51 +0100
From:   Richard Weinberger <richard@....at>
To:     Eric Biggers <ebiggers3@...il.com>, linux-fsdevel@...r.kernel.org
Cc:     "Theodore Y . Ts'o" <tytso@....edu>,
        Jaegeuk Kim <jaegeuk@...nel.org>, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net,
        David Gstir <david@...ma-star.at>,
        Eric Biggers <ebiggers@...gle.com>
Subject: Re: [PATCH 3/3] fscrypt: consolidate fscrypt_has_permitted_context()
 checks

On 15.12.2016 20:19, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@...gle.com>
> 
> Now that fscrypt_has_permitted_context() compares the fscrypt_context
> rather than the fscrypt_info when needed, it is no longer necessary to
> delay fscrypt_has_permitted_context() from ->lookup() to ->open() for
> regular files, as introduced in commit ff978b09f973 ("ext4 crypto: move
> context consistency check to ext4_file_open()").  Therefore the check in
> ->open(), along with the dget_parent() hack, can be removed.
> 
> It's also no longer necessary to check the file type before calling
> fscrypt_has_permitted_context().
> 
> This patch makes these changes for both ext4 and f2fs.
> 
> Signed-off-by: Eric Biggers <ebiggers@...gle.com>
> ---
>  fs/ext4/file.c  | 12 ------------
>  fs/ext4/namei.c | 10 ++--------
>  fs/f2fs/file.c  | 15 +++++----------
>  fs/f2fs/namei.c |  7 ++-----
>  4 files changed, 9 insertions(+), 35 deletions(-)

Can please also take care of UBIFS? :-)

Thanks,
//richard
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