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DateThu, 15 May 2008 10:42:15 -0700 (PDT)
FromChristoph Lameter <>
SubjectRe: [patch 10/21] buffer heads: Support slab defrag
On Mon, 12 May 2008, David Chinner wrote:

> If you are going to clean bufferheads (or pages), please clean entire
> mappings via ->writepages as it leads to far superior I/O patterns
> and a far higher aggregate rate of page cleaning.....

That brings up another issue: Lets say I use writepages on a large file 
(couple of gig). How much do you want to write back?



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