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authorraz ben yehuda <raziebe@gmail.com>2009-06-16 17:02:05 +1000
committerNeilBrown <neilb@suse.de>2009-06-16 17:02:05 +1000
commitfbb704efb784e2c8418e34dc3013af76bdd58101 (patch)
tree814820430d00128cb5f3fc0d44bb579c19d5d2a9 /drivers/char/.gitignore
parent2ac06c3332898103210b478c5a17c20e28929287 (diff)
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md: raid0 :Enables chunk size other than powers of 2.
Maintain two flows, one for pow2 chunk sizes (which uses masks and shift), and a flow for the general case (which uses sector_div). This is for the sake of performance. - introduce map_sector and is_io_in_chunk_boundary to encapsulate those two flows better for raid0_make_request - fix blk_mergeable to support the two flows. Signed-off-by: raziebe@gmail.com Signed-off-by: NeilBrown <neilb@suse.de>
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