Messages in this thread | | | Date | Thu, 20 Feb 2003 18:04:30 -0500 | From | Jeff Garzik <> | Subject | Re: xdr nfs highmem deadlock fix [Re: filesystem access slowing system to a crawl] |
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On Thu, Feb 20, 2003 at 11:56:14PM +0100, Trond Myklebust wrote: > >>>>> " " == Andrea Arcangeli <andrea@suse.de> writes: > > > 2.5.62 has the very same deadlock condition in xdr triggered by > > nfs too. > > Andrew, if you're forward porting it yourself like with the > > filebacked vma merging feature just let me know so we make sure > > not to duplicate effort. > > For 2.5.x we should rather fix MSG_MORE so that it actually works > instead of messing with hacks to kmap(). > > For 2.4.x, Hirokazu Takahashi had a patch which allowed for a safe > kmap of > 1 page in one call. Appended here as an attachment FYI > (Marcelo do *not* apply!).
One should also consider kmap_atomic... (bcrl suggest)
Jeff
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