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SubjectRe: 2.6.6-rc{1,2} bad VM/NFS interaction in case of dirty page writeback
On Thu, Apr 29, 2004 at 11:48:21AM +1000, Nathan Scott wrote:
> Another thing I think XFS could make good use of on the generic
> buffered IO path would be mpage_readpages and mpage_writepages
> variants that can use a get_blocks_t (like the direct IO path)
> instead of the single-block-at-a-time get_block_t interface thats
> used now. The existence of such beasts would probably impact the
> direction xfs_aops.c takes a fair bit I'd guess Christoph?

For mpage_readpages - yes. To use mpage_writepages from XFS I'd need
a large-scale rewrite to handle delayed allocations and unwritten extents,
so at least for the 2.6.x timeframe we're probably better of keeping our
own ->writepages inside XFS.

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