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| author | raz ben yehuda <raziebe@gmail.com> | 2009-06-16 17:02:05 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-06-16 17:02:05 +1000 |
| commit | fbb704efb784e2c8418e34dc3013af76bdd58101 (patch) | |
| tree | 814820430d00128cb5f3fc0d44bb579c19d5d2a9 /drivers/md/linear.c | |
| parent | 2ac06c3332898103210b478c5a17c20e28929287 (diff) | |
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>
Diffstat (limited to 'drivers/md/linear.c')
0 files changed, 0 insertions, 0 deletions