io context sharing: preliminary support

Detach task state from ioc, instead keep track of how many processes
are accessing the ioc.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 2a86c9dff7..1987c57abb 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -805,7 +805,6 @@ static int copy_io(struct task_struct *tsk)
                 if (unlikely(!tsk->io_context))
                         return -ENOMEM;
 
-                tsk->io_context->task = tsk;
                 tsk->io_context->ioprio = ioc->ioprio;
         }
 #endif