Messages in this thread | | | Date | Thu, 10 Aug 2006 16:13:33 -0400 | From | Jeff Garzik <> | Subject | Re: [PATCH 1/5] Forking ext4 filesystem from ext3 filesystem |
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Badari Pulavarty wrote: > Andrew Morton wrote: >> Also, JBD is presently feeding into submit_bh() buffer_heads which >> span two >> machine pages, and some device drivers spit the dummy. It'd be better to >> fix that once, rather than twice.. > Andrew, > > I looked at this few days ago. I am not sure how we end up having > multiple pages (especially, > why we end up having buffers with bh_size > pagesize) ? Do you know why ? > > Easiest fix would be to fix submit_bh() to deal with multiple vecs - > which is vetoed by > Jens and I agree with him :(
Yep. The sooner we kill buffer heads and use submit_bio(), the better :)
Jeff
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