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-rw-r--r--include/linux/blkdev.h25
1 files changed, 17 insertions, 8 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index b54a034..21a8674 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -54,16 +54,23 @@ struct as_io_context {
struct cfq_queue;
struct cfq_io_context {
- void (*dtor)(struct cfq_io_context *);
- void (*exit)(struct cfq_io_context *);
-
- struct io_context *ioc;
-
/*
* circular list of cfq_io_contexts belonging to a process io context
*/
struct list_head list;
struct cfq_queue *cfqq;
+ void *key;
+
+ struct io_context *ioc;
+
+ unsigned long last_end_request;
+ unsigned long last_queue;
+ unsigned long ttime_total;
+ unsigned long ttime_samples;
+ unsigned long ttime_mean;
+
+ void (*dtor)(struct cfq_io_context *);
+ void (*exit)(struct cfq_io_context *);
};
/*
@@ -73,7 +80,9 @@ struct cfq_io_context {
*/
struct io_context {
atomic_t refcount;
- pid_t pid;
+ struct task_struct *task;
+
+ int (*set_ioprio)(struct io_context *, unsigned int);
/*
* For request batching
@@ -81,8 +90,6 @@ struct io_context {
unsigned long last_waited; /* Time last woken after wait for request */
int nr_batch_requests; /* Number of requests left in the batch */
- spinlock_t lock;
-
struct as_io_context *aic;
struct cfq_io_context *cic;
};
@@ -134,6 +141,8 @@ struct request {
void *elevator_private;
+ unsigned short ioprio;
+
int rq_status; /* should split this into a few status bits */
struct gendisk *rq_disk;
int errors;
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