Re: [PATCH 2/3] XFS: Make use of the init-once slab optimisation.

xfs

Re: [PATCH 2/3] XFS: Make use of the init-once slab optimisation.

To:	Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject:	Re: [PATCH 2/3] XFS: Make use of the init-once slab optimisation.
From:	Dave Chinner <david@xxxxxxxxxxxxx>
Date:	Tue, 16 Sep 2008 14:21:05 +1000
Cc:	xfs@xxxxxxxxxxx
In-reply-to:	<20080915211117.GA29743@xxxxxxxxxxxxx>
Mail-followup-to:	Christoph Hellwig <hch@xxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
References:	<1221314627-29065-1-git-send-email-david@xxxxxxxxxxxxx> <1221314627-29065-3-git-send-email-david@xxxxxxxxxxxxx> <20080915211117.GA29743@xxxxxxxxxxxxx>
User-agent:	Mutt/1.5.18 (2008-05-17)

On Mon, Sep 15, 2008 at 05:11:17PM -0400, Christoph Hellwig wrote:
> On Sun, Sep 14, 2008 at 12:03:46AM +1000, Dave Chinner wrote:
> > To avoid having to initialise some fields of the XFS inode
> > on every allocation, we can use the slab init-once feature
> > to initialise them. All we have to guarantee is that when
> > we free the inode, all it's entries are in the initial state.
> > Add asserts where possible to ensure debug kernels check this
> > initial state before freeing and after allocation.
> 
> This looks like it's already in:
> http://oss.sgi.com/cgi-bin/gitweb.cgi?p=xaiki/xfs-linux-2.6-xfs-cvs/.git;a=commitdiff;h=12efb888674600ce73a64f8c6f4a20ea5e1ce4f1

<sigh>

Which means that some of the patches won't apply. SGI folks,
can you please get the master tree updated so I can rediff all
the patches and repost them again?

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
[PATCH 0/3] XFS: Prepare for combining the XFS and Linux inodes., Dave Chinner [PATCH 3/3] XFS: Never call mark_inode_dirty_sync() directly, Dave Chinner Re: [PATCH 3/3] XFS: Never call mark_inode_dirty_sync() directly, Christoph Hellwig [PATCH 2/3] XFS: Make use of the init-once slab optimisation., Dave Chinner Re: [PATCH 2/3] XFS: Make use of the init-once slab optimisation., Christoph Hellwig Re: [PATCH 2/3] XFS: Make use of the init-once slab optimisation., Dave Chinner <= [PATCH 1/3] XFS: factor xfs_iget_core() into hit and miss cases, Dave Chinner Re: [PATCH 1/3] XFS: factor xfs_iget_core() into hit and miss cases, Christoph Hellwig

Previous by Date:	Re: [PATCH] Fix use-after-free with log and quotas, Dave Chinner
Next by Date:	Re: [PATCH 2/6] XFS: mark inodes for reclaim via a tag in the inode radix tree, Dave Chinner
Previous by Thread:	Re: [PATCH 2/3] XFS: Make use of the init-once slab optimisation., Christoph Hellwig
Next by Thread:	[PATCH 1/3] XFS: factor xfs_iget_core() into hit and miss cases, Dave Chinner
Indexes:	[Date] [Thread] [Top] [All Lists]