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Re: [PATCH, RFC] xfs: event tracing support

To: Eric Sandeen <sandeen@xxxxxxxxxxx>
Subject: Re: [PATCH, RFC] xfs: event tracing support
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Fri, 17 Jul 2009 10:09:55 -0400
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>, Felix Blyakher <felixb@xxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, Steven Rostedt <rostedt@xxxxxxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <4A5FA82F.6050903@xxxxxxxxxxx>
References: <20090616214844.GA12310@xxxxxxxxxxxxx> <4E752C93-A674-4725-AF23-C227C0A1E659@xxxxxxx> <20090622205904.GA1855@xxxxxxxxxxxxx> <4A5FA82F.6050903@xxxxxxxxxxx>
User-agent: Mutt/1.5.18 (2008-05-17)
On Thu, Jul 16, 2009 at 05:22:39PM -0500, Eric Sandeen wrote:
> Where are we at with this one, I'd like to get this in for XFS but I
> agree w/ Felix that throwing out a "working" trace infrastructure w/
> nothing to replace it on ia64 would not be great.

Well, it's not actuall working in these sense of that it isn't and never
has been in mainline and also is utterly bit-rotted.  I have absolutely
no interested in keeping a tracing implementation away from mainline
that just works out of the box (not just on x86 but also on powerpc and
others) just because ia64 is too slow to get modern features.

And it's not like we got any interesting amount of IA64 users, nor have
does SGI who seems to be interested in IA64 do a lot of patches to XFS.

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