From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>,
Chandan Babu R <chandanbabu@kernel.org>,
Keith Busch <kbusch@kernel.org>,
linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
linux-xfs@vger.kernel.org
Subject: Re: [PATCH 02/10] block: move discard checks into the ioctl handler
Date: Sat, 9 Mar 2024 08:16:36 +1100 [thread overview]
Message-ID: <ZeuANC+r7TOSGHmd@dread.disaster.area> (raw)
In-Reply-To: <20240308152244.GC11963@lst.de>
On Fri, Mar 08, 2024 at 04:22:44PM +0100, Christoph Hellwig wrote:
> On Fri, Mar 08, 2024 at 08:33:08AM +1100, Dave Chinner wrote:
> > > static int blk_ioctl_discard(struct block_device *bdev, blk_mode_t mode,
> > > unsigned long arg)
> > > {
> > > + sector_t bs_mask = (bdev_logical_block_size(bdev) >> SECTOR_SHIFT) - 1;
> > > + sector_t sector, nr_sects;
> >
> > This changes the alignment checks from a hard coded 512 byte sector
> > to the logical block size of the device. I don't see a problem with
> > this (it fixes a bug) but it should at least be mentioned in the
> > commit message.
>
> Before the exact block size alignment check as done down in
> __blkdev_issue_discard, it just moves up here now. I guess I need to
> make that more clear in the commit message.
Ah, eyeball pattern matching fail on my part - you changed it from a
hard coded '9' to SECTOR_SHIFT as it moved (which is fine!), I just
missed that. All good!
-Dave.
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2024-03-08 21:16 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-07 15:11 RFC: untangle and fix __blkdev_issue_discard Christoph Hellwig
2024-03-07 15:11 ` [PATCH 01/10] block: remove the discard_granularity check in __blkdev_issue_discard Christoph Hellwig
2024-03-07 15:11 ` [PATCH 02/10] block: move discard checks into the ioctl handler Christoph Hellwig
2024-03-07 21:33 ` Dave Chinner
2024-03-08 15:22 ` Christoph Hellwig
2024-03-08 21:16 ` Dave Chinner [this message]
2024-03-07 15:11 ` [PATCH 03/10] block: add a blk_next_discard_bio helper Christoph Hellwig
2024-03-07 15:11 ` [PATCH 04/10] xfs: switch to using blk_next_discard_bio directly Christoph Hellwig
2024-03-07 15:11 ` [PATCH 05/10] f2fs: " Christoph Hellwig
2024-03-07 15:11 ` [PATCH 06/10] ext4: " Christoph Hellwig
2024-03-07 16:13 ` Keith Busch
2024-03-08 15:21 ` Christoph Hellwig
2024-03-07 15:11 ` [PATCH 07/10] nvmet: " Christoph Hellwig
2024-03-07 15:11 ` [PATCH 08/10] md: " Christoph Hellwig
2024-03-07 15:11 ` [PATCH 09/10] dm-thin: " Christoph Hellwig
2024-03-07 15:11 ` [PATCH 10/10] block: remove __blkdev_issue_discard Christoph Hellwig
2024-03-07 21:05 ` RFC: untangle and fix __blkdev_issue_discard Keith Busch
2024-03-08 15:21 ` Christoph Hellwig
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=ZeuANC+r7TOSGHmd@dread.disaster.area \
--to=david@fromorbit.com \
--cc=axboe@kernel.dk \
--cc=chandanbabu@kernel.org \
--cc=hch@lst.de \
--cc=kbusch@kernel.org \
--cc=linux-block@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=linux-xfs@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 read-only IMAP folder(s) and NNTP newsgroup(s).