From 4e521c27eee33cebd618c26649e2c93803004647 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Tue, 24 Apr 2007 21:17:33 +0200
Subject: [PATCH] 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>
---
block/ll_rw_blk.c | 1 +
include/linux/blkdev.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 3de06953ac3..123003a9047 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -3741,6 +3741,7 @@ static struct io_context *current_io_context(gfp_t gfp_flags, int node)
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 83dcd8c0e97..a686eabe22d 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);
--
2.41.3