1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/poll.h b/include/linux/poll.h
index 8c24ef8d9976..fa287f25138d 100644
--- a/include/linux/poll.h
+++ b/include/linux/poll.h
@@ -32,6 +32,7 @@ typedef void (*poll_queue_proc)(struct file *, wait_queue_head_t *, struct poll_
 
 typedef struct poll_table_struct {
         poll_queue_proc qproc;
+        unsigned long key;
 } poll_table;
 
 static inline void poll_wait(struct file * filp, wait_queue_head_t * wait_address, poll_table *p)
@@ -43,10 +44,12 @@ static inline void poll_wait(struct file * filp, wait_queue_head_t * wait_addres
 static inline void init_poll_funcptr(poll_table *pt, poll_queue_proc qproc)
 {
         pt->qproc = qproc;
+        pt->key   = ~0UL; /* all events enabled */
 }
 
 struct poll_table_entry {
         struct file *filp;
+        unsigned long key;
         wait_queue_t wait;
         wait_queue_head_t *wait_address;
 };