[Linux-cluster] Re: GFS

[Mark Fasheh <mark fasheh oracle com>]

On Wed, Aug 10, 2005 at 11:18:48PM +0300, Pekka J Enberg wrote:
> Aah, I see GFS2 does that too so no deadlocks here. Thanks.
Yep, no problem :)

> You, however, don't maintain the same level of data consistency when reads
> and writes are from other filesystems as they use ->nopage.
I'm not sure what you mean here...

> Fixing this requires a generic vma walk in every write() and read(), no?
> That doesn't seem such an hot idea which brings us back to using ->nopage
> for taking the locks (but now the deadlocks are back). 
Yeah if you look through mmap.c in ocfs2_fill_ctxt_from_buf() we do this...
Or am I misunderstanding what you mean?
	--Mark

--
Mark Fasheh
Senior Software Developer, Oracle
mark fasheh oracle com