diff options
| author | Jeff Moyer <jmoyer@redhat.com> | 2011-09-29 15:26:58 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-07 12:32:38 -0800 |
| commit | 4a78a06ce2ecea224c55eb2e171ea020110ecaa9 (patch) | |
| tree | a4d3f05b0d0cb93bd5986a81101e76c9c4cac7b9 /include | |
| parent | 610fba92198e257bb039e49c391bb73cd0c1b2b1 (diff) | |
cfq: calculate the seek_mean per cfq_queue not per cfq_io_context
commit b2c18e1e08a5a9663094d57bb4be2f02226ee61c upstream.
async cfq_queue's are already shared between processes within the same
priority, and forthcoming patches will change the mapping of cic to sync
cfq_queue from 1:1 to 1:N. So, calculate the seekiness of a process
based on the cfq_queue instead of the cfq_io_context.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/iocontext.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h index 4da4a75c3f1e..eb73632440f1 100644 --- a/include/linux/iocontext.h +++ b/include/linux/iocontext.h @@ -40,16 +40,11 @@ struct cfq_io_context { struct io_context *ioc; unsigned long last_end_request; - sector_t last_request_pos; unsigned long ttime_total; unsigned long ttime_samples; unsigned long ttime_mean; - unsigned int seek_samples; - u64 seek_total; - sector_t seek_mean; - struct list_head queue_list; struct hlist_node cic_list; |