ll_rw_blk: add io_context private pointer
To be used by as/cfq as they see fit.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 3de0695..123003a 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -3741,6 +3741,7 @@
ret->nr_batch_requests = 0; /* because this is 0 */
ret->aic = NULL;
ret->cic_root.rb_node = NULL;
+ ret->ioc_data = NULL;
/* make sure set_task_ioprio() sees the settings above */
smp_wmb();
tsk->io_context = ret;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 83dcd8c..a686eab 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -116,6 +116,7 @@
struct as_io_context *aic;
struct rb_root cic_root;
+ void *ioc_data;
};
void put_io_context(struct io_context *ioc);