linux-ext4 - Re: [RFC PATCH V3 07/12] mpage_readpage[s]: Introduce post process callback parameters

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Date:   Mon, 28 May 2018 11:05:52 +0530
From:   Chandan Rajendra <chandan@...ux.vnet.ibm.com>
To:     "Theodore Y. Ts'o" <tytso@....edu>
Cc:     linux-fscrypt@...r.kernel.org, ebiggers3@...il.com,
        linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [RFC PATCH V3 07/12] mpage_readpage[s]: Introduce post process callback parameters

On Saturday, May 26, 2018 1:31:21 AM IST Theodore Y. Ts'o wrote:
> On Tue, May 22, 2018 at 09:31:05PM +0530, Chandan Rajendra wrote:
> > This commit introduces a new parameter to mpage_readpage[s]()
> > functions. This parameter contains pointers to functions that can be
> > used to decrypt data read from the backing device. These are stored in
> > the fscrypt_ctx structure and one of these functions is invoked after
> > the read operation is completed.
> > 
> > Signed-off-by: Chandan Rajendra <chandan@...ux.vnet.ibm.com>
> 
> Can you describe more of what you are doing here; specifically, you
> deleted all of fs/ext4/readpage.c --- was this because you moved
> functionality back into fs/mpage.c?  Did you make sure all of the
> local changes in fs/ext4/readpage was moved back to fs/mpage.c?
> 
> If the goal is to refactor code to remove the need for
> fs/ext4/readpage.c, you should probably make that be the first patch
> as a prerequisite patch.  And we then need to make sure we don't
> accidentally break anyone else who might be using fs/mpage.c.  Saying
> a bit more about why you think the refactor is a good thing would also
> be useful.

I will split this patch into two as suggested by you. Also, I will update 
the commit messages.

The patchset was based on next-20180503 tree. You can obtain it from
"https://github.com/chandanr/linux.git ext4-encryption"

-- 
chandan