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authorNeilBrown <neilb@suse.de>2012-03-19 02:46:39 +0100
committerNeilBrown <neilb@suse.de>2012-03-19 02:46:39 +0100
commitba13da47ffa202784355561f72160a41350e95cc (patch)
tree9b60f27ab89e4036df65d0dc3bf52b7420f83a50 /drivers/md/md.h
parentmd: tidy up rdev_for_each usage. (diff)
downloadlinux-ba13da47ffa202784355561f72160a41350e95cc.tar.xz
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md: add proper merge_bvec handling to RAID0 and Linear.
These personalities currently set a max request size of one page when any member device has a merge_bvec_fn because they don't bother to call that function. This causes extra works in splitting and combining requests. So make the extra effort to call the merge_bvec_fn when it exists so that we end up with larger requests out the bottom. Signed-off-by: NeilBrown <neilb@suse.de>
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