Messages in this thread | | | Date | Wed, 13 Jul 2005 10:37:00 +1000 | From | Nathan Scott <> | Subject | Re: RT and XFS |
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On Tue, Jul 12, 2005 at 05:41:43PM -0700, Daniel Walker wrote: > On Wed, 2005-07-13 at 10:25 +1000, Nathan Scott wrote: > > On Tue, Jul 12, 2005 at 04:01:32PM -0700, Daniel Walker wrote: > > > > > > Is there something so odd about the XFS locking, that it can't use the > > > rt_lock ? > > > > Not that I know of - XFS does use the downgrade_write interface, > > whose use isn't overly common in the rest of the kernel... maybe > > that has caused some confusion, dunno. > > Current RT doesn't implement downgrade_write() , but it's trivial to add > it.
Ah, thats probably it then.
> So it calls up_read if it has a read lock ? Or up_write if it has a > write lock? I suppose it would be broken if it didn't though.
Thats correct.
cheers.
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