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| author |   Vivek Goyal <vgoyal@redhat.com> | 2009-12-03 12:59:38 -0500 |
|---|---|---|
| committer |   Jens Axboe <jens.axboe@oracle.com> | 2009-12-03 19:28:51 +0100 |
| commit | cdb16e8f739985b8a5c9f4569b026583bbcd01a5 (patch) | |
| tree | 860b74f8134cfbd516cc73b8b9a9edfe4e3d2db6 /block/blk-exec.c | |
| parent | blkio: Set must_dispatch only if we decided to not dispatch the request (diff) | |
| download | linux-dev-cdb16e8f739985b8a5c9f4569b026583bbcd01a5.tar.xz linux-dev-cdb16e8f739985b8a5c9f4569b026583bbcd01a5.zip | |
blkio: Introduce the notion of cfq groups
o This patch introduce the notion of cfq groups. Soon we will can have multiple
groups of different weights in the system.
o Various service trees (prioclass and workload type trees), will become per
cfq group. So hierarchy looks as follows.
cfq_groups
|
workload type
|
cfq queue
o When an scheduling decision has to be taken, first we select the cfq group
then workload with-in the group and then cfq queue with-in the workload
type.
o This patch just makes various workload service tree per cfq group and
introduce the function to be able to choose a group for scheduling.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/blk-exec.c')
0 files changed, 0 insertions, 0 deletions