diff options
Diffstat (limited to 'block/blk-ioc.c')
| -rw-r--r-- | block/blk-ioc.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/block/blk-ioc.c b/block/blk-ioc.c index 3ba15c867dfa..cc4eb2ba87f7 100644 --- a/block/blk-ioc.c +++ b/block/blk-ioc.c @@ -173,7 +173,7 @@ EXPORT_SYMBOL_GPL(put_io_context); * put_io_context_active - put active reference on ioc * @ioc: ioc of interest * - * Undo get_io_context_active(). If active reference reaches zero after + * Put an active reference to an ioc. If active reference reaches zero after * put, @ioc can never issue further IOs and ioscheds are notified. */ static void put_io_context_active(struct io_context *ioc) @@ -333,11 +333,9 @@ int __copy_io(unsigned long clone_flags, struct task_struct *tsk) * Share io context with parent, if CLONE_IO is set */ if (clone_flags & CLONE_IO) { - get_io_context_active(ioc); - - WARN_ON_ONCE(atomic_read(&ioc->nr_tasks) <= 0); + atomic_long_inc(&ioc->refcount); + atomic_inc(&ioc->active_ref); atomic_inc(&ioc->nr_tasks); - tsk->io_context = ioc; } else if (ioprio_valid(ioc->ioprio)) { new_ioc = get_task_io_context(tsk, GFP_KERNEL, NUMA_NO_NODE); |