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Subject[PATCHSET] 0/15 IO scheduler improvements
Date
Hi,

This is a continuation of the patches posted yesterday, I continued
to build on them. The patch series does:

- Move the hash backmerging into the elevator core.
- Move the rbtree handling into the elevator core.
- Abstract the FIFO handling into the elevator core.
- Kill the io scheduler private requests, that require allocation/free
for each request passed through the system.

The result is a faster elevator core (and faster IO schedulers), with a
nice net reduction of kernel text and code as well.

If you have time, please give this patch series a test spin just to
verify that everything still works for you. Thanks!

block/as-iosched.c | 650 ++++++++++-------------------------------------
block/cfq-iosched.c | 498 +++++++++---------------------------
block/deadline-iosched.c | 462 +++++----------------------------
block/elevator.c | 266 +++++++++++++++++--
block/ll_rw_blk.c | 9
include/linux/blkdev.h | 29 +-
include/linux/elevator.h | 32 ++
include/linux/rbtree.h | 2
lib/rbtree.c | 6
9 files changed, 649 insertions(+), 1305 deletions(-)


--
Jens Axboe

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