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authorJeff Moyer <jmoyer@redhat.com>2009-10-23 17:14:49 -0400
committerJens Axboe <jens.axboe@oracle.com>2009-10-26 09:34:46 -0400
commitb2c18e1e08a5a9663094d57bb4be2f02226ee61c (patch)
tree55c092706a0d8a9e645f245bf2ecc45c29ba5aa7 /include/linux/iocontext.h
parentc30f33437c3f85ec48353a1ef811e148217a2aaf (diff)
cfq: calculate the seek_mean per cfq_queue not per cfq_io_context
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>
Diffstat (limited to 'include/linux/iocontext.h')
-rw-r--r--include/linux/iocontext.h5
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 {
40 struct io_context *ioc; 40 struct io_context *ioc;
41 41
42 unsigned long last_end_request; 42 unsigned long last_end_request;
43 sector_t last_request_pos;
44 43
45 unsigned long ttime_total; 44 unsigned long ttime_total;
46 unsigned long ttime_samples; 45 unsigned long ttime_samples;
47 unsigned long ttime_mean; 46 unsigned long ttime_mean;
48 47
49 unsigned int seek_samples;
50 u64 seek_total;
51 sector_t seek_mean;
52
53 struct list_head queue_list; 48 struct list_head queue_list;
54 struct hlist_node cic_list; 49 struct hlist_node cic_list;
55 50