diff options
Diffstat (limited to 'include/linux/iocontext.h')
| -rw-r--r-- | include/linux/iocontext.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h index 1b4ccf25b4d..2b7a1187cb2 100644 --- a/include/linux/iocontext.h +++ b/include/linux/iocontext.h @@ -2,6 +2,7 @@ #define IOCONTEXT_H #include <linux/radix-tree.h> +#include <linux/rcupdate.h> /* * This is the per-process anticipatory I/O scheduler state. @@ -54,6 +55,8 @@ struct cfq_io_context { void (*dtor)(struct io_context *); /* destructor */ void (*exit)(struct io_context *); /* called on task exit */ + + struct rcu_head rcu_head; }; /* @@ -88,8 +91,10 @@ static inline struct io_context *ioc_task_link(struct io_context *ioc) * if ref count is zero, don't allow sharing (ioc is going away, it's * a race). */ - if (ioc && atomic_inc_not_zero(&ioc->refcount)) + if (ioc && atomic_inc_not_zero(&ioc->refcount)) { + atomic_inc(&ioc->nr_tasks); return ioc; + } return NULL; } |