CFQ: move think time check variables to a separate struct

Move the variables to do think time check to a sepatate struct. This is
to prepare adding think time check for service tree and group. No
functional change.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 9 insertions, 5 deletions

diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index b2eee896dcbc..5037a0ad2312 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -5,6 +5,14 @@
 #include <linux/rcupdate.h>
 
 struct cfq_queue;
+struct cfq_ttime {
+        unsigned long last_end_request;
+
+        unsigned long ttime_total;
+        unsigned long ttime_samples;
+        unsigned long ttime_mean;
+};
+
 struct cfq_io_context {
         void *key;
 
@@ -12,11 +20,7 @@ struct cfq_io_context {
 
         struct io_context *ioc;
 
-        unsigned long last_end_request;
-
-        unsigned long ttime_total;
-        unsigned long ttime_samples;
-        unsigned long ttime_mean;
+        struct cfq_ttime ttime;
 
         struct list_head queue_list;
         struct hlist_node cic_list;