Jens Axboe
a362357b6c
[BLOCK] Unify the seperate read/write io stat fields into arrays
...
Instead of having ->read_sectors and ->write_sectors, combine the two
into ->sectors[2] and similar for the other fields. This saves a branch
several places in the io path, since we don't have to care for what the
actual io direction is. On my x86-64 box, that's 200 bytes less text in
just the core (not counting the various drivers).
Signed-off-by: Jens Axboe <axboe@suse.de >
2005-11-01 09:26:16 +01:00
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