linux-kernel - Re: [PATCH 07/17] vfs: Introduce new helpers for syncing after writing to O_SYNC file or IS

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Date:	Thu, 20 Aug 2009 14:15:31 +0200
From:	Jan Kara <jack@...e.cz>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Jan Kara <jack@...e.cz>, LKML <linux-kernel@...r.kernel.org>,
	Evgeniy Polyakov <zbr@...emap.net>, ocfs2-devel@....oracle.com,
	Joel Becker <joel.becker@...cle.com>,
	Felix Blyakher <felixb@....com>, xfs@....sgi.com,
	Anton Altaparmakov <aia21@...tab.net>,
	linux-ntfs-dev@...ts.sourceforge.net,
	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
	linux-ext4@...r.kernel.org, tytso@....edu
Subject: Re: [PATCH 07/17] vfs: Introduce new helpers for syncing after
	writing to O_SYNC file or IS_SYNC inode

On Wed 19-08-09 12:26:38, Christoph Hellwig wrote:
> Looks good to me.  Eventually we should use those SYNC_ flags also all
> through the fsync codepath, but I'll see if I can incorporate that in my
> planned fsync rewrite.
  Yes, I thought I'll leave that for later. BTW it should be fairly easy to
teach generic_sync_file() to do fdatawait() before calling ->fsync() if the
filesystem sets some flag in inode->i_mapping (or somewhere else) as is
needed for XFS, btrfs, etc.

								Honza
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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