From: "Theodore Y. Ts'o" <tytso@mit.edu>
To: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Cc: linux-fscrypt@vger.kernel.org, ebiggers3@gmail.com,
linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [RFC PATCH V3 07/12] mpage_readpage[s]: Introduce post process callback parameters
Date: Mon, 28 May 2018 15:34:37 -0400 [thread overview]
Message-ID: <20180528193437.GC3572@thunk.org> (raw)
In-Reply-To: <4837046.FSMeUsGny4@dhcp-9-109-247-5>
On Mon, May 28, 2018 at 11:05:52AM +0530, Chandan Rajendra wrote:
> > 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.
Note that I was planning on making changes to fs/ext4/readpage.c as
part of integrating fsverity[1][2] support into ext4. Basically, I
need to do something like [3] to fs/ext4/readpage.c.
[1] https://www.spinics.net/lists/linux-fsdevel/msg121182.html
[2] https://www.youtube.com/watch?v=GlEWcVuRbNA
[3] https://git.kernel.org/pub/scm/linux/kernel/git/mhalcrow/linux.git/commit/?h=fs-verity-dev&id=827faba05972517f49fa2f2aaf272150f5766af2
Which is why I'm really interested in your reasoning for why you
propose to drop fs/ext4/readpage.c. :-)
- Ted
next prev parent reply other threads:[~2018-05-28 19:34 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-22 16:00 [RFC PATCH V3 00/12] Ext4 encryption support for blocksize < pagesize Chandan Rajendra
2018-05-22 16:00 ` [RFC PATCH V3 01/12] ext4: Clear BH_Uptodate flag on decryption error Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 02/12] Rename fscrypt_do_page_crypto to fscrypt_do_block_crypto Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 03/12] fscrypt_decrypt_page: Decrypt all blocks in a page Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 04/12] __fscrypt_decrypt_bio: Fix page offset and len args to fscrypt_decrypt_page Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 05/12] ext4: Decrypt all boundary blocks when doing buffered write Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 06/12] ext4: Decrypt the block that needs to be partially zeroed Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 07/12] mpage_readpage[s]: Introduce post process callback parameters Chandan Rajendra
2018-05-25 20:01 ` Theodore Y. Ts'o
2018-05-28 5:35 ` Chandan Rajendra
2018-05-28 19:34 ` Theodore Y. Ts'o [this message]
2018-05-29 3:04 ` Chandan Rajendra
2018-05-29 17:53 ` Eric Biggers
2018-05-30 3:09 ` Chandan Rajendra
2018-05-30 5:06 ` Theodore Y. Ts'o
2018-05-30 11:33 ` Chandan Rajendra
2018-05-30 16:02 ` Theodore Y. Ts'o
2018-06-04 10:09 ` Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 08/12] fscrypt_zeroout_range: Encrypt all zeroed out blocks of a page Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 09/12] fscrypt_encrypt_page: Encrypt all blocks mapped by " Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 10/12] ext4: Fix block number passed to fscrypt_encrypt_page Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 11/12] ext4: Move encryption code into its own function Chandan Rajendra
2018-05-22 16:01 ` [RFC PATCH V3 12/12] ext4: Enable encryption for blocksize less than page size Chandan Rajendra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180528193437.GC3572@thunk.org \
--to=tytso@mit.edu \
--cc=chandan@linux.vnet.ibm.com \
--cc=ebiggers3@gmail.com \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-fscrypt@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).