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>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 83dcd8c0e974..a686eabe22d6 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -116,6 +116,7 @@ struct io_context {
 
         struct as_io_context *aic;
         struct rb_root cic_root;
+        void *ioc_data;
 };
 
 void put_io_context(struct io_context *ioc);