Re: [PATCH 5/6] writeback: don't delay inodes redirtied by a fastdirtier

[Christoph Hellwig]

On Wed, Sep 23, 2009 at 08:33:43PM +0800, Wu Fengguang wrote:
> So let's distinguish between data redirty and metadata only redirty.
> The first one is caused by a busy dirtier, while the latter one could
> happen in XFS, NFS, etc. when they are doing delalloc or updating isize.

Btw, I'm not sure the existing and preserved behaviour for that case
is good.  In the worst case the inode writeout gets delayed by another
30 seconds, doubling the window until a file is on disk if it was
extended.

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