o eliminate modification of task structures after their run to avoid

  modify-after-free races when the task structure is malloc'd
o shrink task structure by removing ta_flags (no longer needed with
  avoid fix) and combining ta_pending and ta_priority

Reviewed by:	dwhite, dfr
MFC after:	4 days

1 files changed, 2 insertions, 5 deletions

diff --git a/sys/sys/_task.h b/sys/sys/_task.h
index 4eb6d64..2a51e1b 100644
--- a/sys/sys/_task.h
+++ b/sys/sys/_task.h
@@ -41,13 +41,10 @@ typedef void task_fn_t(void *context, int pending);
 
 struct task {
 	STAILQ_ENTRY(task) ta_link;	/* link for queue */
-	int	ta_pending;		/* count times queued */
-	int	ta_priority;		/* priority of task in queue */
+	u_short	ta_pending;		/* count times queued */
+	u_short	ta_priority;		/* Priority */
 	task_fn_t *ta_func;		/* task handler */
 	void	*ta_context;		/* argument for handler */
-	int	ta_flags;		/* Flags */
 };
 
-#define TAF_PENDING	0x1		/* Task is being run now */
-
 #endif /* !_SYS__TASK_H_ */