All of lore.kernel.org
 help / color / mirror / Atom feed
From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 6/6] xfs: rename XFS_BUF_ZEROFLAGS macro
Date: Tue, 9 Feb 2016 09:31:20 +1100	[thread overview]
Message-ID: <20160208223120.GM27429@dastard> (raw)
In-Reply-To: <20160208091235.GN5534@infradead.org>

On Mon, Feb 08, 2016 at 01:12:36AM -0800, Christoph Hellwig wrote:
> Instead of just renaming it I'd rather dig deeper.
> 
> In xlog_bwrite we call xfs_bwrite, which already handles all flag
> clearing, so the call to XFS_BUF_ZEROFLAGS can just
> be removed.

Done.

> xlog_sync already sets a lot of these flags again, and is called on an
> iclog buffer which never has the READ or XBF_WRITE_FAIL set, so just
> replacing it with an opencoded
> 
> 	bp->b_flags &= (XBF_FUA | XBF_FLUSH);

We can't do that because there are internal flags like _XBF_PAGES
that are set on log buffers. Clearing such flags will cause problems
when the iclog buffer is finally released on unmount. Hence I'd
prefer to keep the code as it stands.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

  reply	other threads:[~2016-02-08 22:31 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-05  0:37 [PATCH 0/6] xfs: clean up buffer flag macros Dave Chinner
2016-02-05  0:37 ` [PATCH 1/6] xfs: remove XBF_DONE flag wrapper macros Dave Chinner
2016-02-08  9:04   ` Christoph Hellwig
2016-02-05  0:37 ` [PATCH 2/6] xfs: remove XBF_ASYNC " Dave Chinner
2016-02-08  9:05   ` Christoph Hellwig
2016-02-05  0:38 ` [PATCH 3/6] xfs: remove XBF_READ " Dave Chinner
2016-02-08  9:05   ` Christoph Hellwig
2016-02-05  0:38 ` [PATCH 4/6] xfs: remove XBF_WRITE " Dave Chinner
2016-02-08  9:06   ` Christoph Hellwig
2016-02-05  0:38 ` [PATCH 5/6] xfs: remove XBF_STALE " Dave Chinner
2016-02-08  9:07   ` Christoph Hellwig
2016-02-05  0:38 ` [PATCH 6/6] xfs: rename XFS_BUF_ZEROFLAGS macro Dave Chinner
2016-02-08  9:12   ` Christoph Hellwig
2016-02-08 22:31     ` Dave Chinner [this message]
2016-02-08 22:59       ` [PATCH 6/6 v2] " Dave Chinner
2016-02-09  9:16       ` [PATCH 6/6] " Christoph Hellwig
2016-02-09 21:23         ` Dave Chinner
2016-02-09 21:38           ` [PATCH 6/6 v3] xfs: remove " Dave Chinner
2016-02-09 21:49             ` 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=20160208223120.GM27429@dastard \
    --to=david@fromorbit.com \
    --cc=hch@infradead.org \
    --cc=xfs@oss.sgi.com \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.