48d0d3657e43db5a08a9b3890fcee5cedac52d06 Removing rcu_read_(lock, unlock) illegal operations .
 fs/fcntl.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/fs/fcntl.c b/fs/fcntl.c
index 350a2c8..dc030a2 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -475,7 +475,7 @@ static void send_sigio_to_task(struct task_struct *p,
 			   reasons, otherwise we could leak kernel stack into
 			   userspace.  */
 			BUG_ON((reason & __SI_MASK) != __SI_POLL);
-			if (reason - POLL_IN >= NSIGPOLL)
+			if ((reason - POLL_IN) >= NSIGPOLL)
 				si.si_band  = ~0L;
 			else
 				si.si_band = band_table[reason - POLL_IN];
@@ -580,7 +580,7 @@ int fasync_remove_entry(struct file *filp, struct fasync_struct **fapp)
 
 	spin_lock(&filp->f_lock);
 	spin_lock(&fasync_lock);
-	for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) {
+	for (fp = fapp; ((fa = *fp) != NULL); fp = &fa->fa_next) {
 		if (fa->fa_file != filp)
 			continue;
 
@@ -627,7 +627,7 @@ struct fasync_struct *fasync_insert_entry(int fd, struct file *filp, struct fasy
 
 	spin_lock(&filp->f_lock);
 	spin_lock(&fasync_lock);
-	for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) {
+	for (fp = fapp; ((fa = *fp) != NULL); fp = &fa->fa_next) {
 		if (fa->fa_file != filp)
 			continue;
 
@@ -713,7 +713,7 @@ static void kill_fasync_rcu(struct fasync_struct *fa, int sig, int band)
 			/* Don't send SIGURG to processes which have not set a
 			   queued signum: SIGURG has its own default signalling
 			   mechanism. */
-			if (!(sig == SIGURG && fown->signum == 0))
+			if (!((sig == SIGURG) && (fown->signum == 0)))
 				send_sigio(fown, fa->fa_fd, band);
 		}
 		spin_unlock_irqrestore(&fa->fa_lock, flags);
@@ -727,9 +727,7 @@ void kill_fasync(struct fasync_struct **fp, int sig, int band)
 	 * the list is empty.
 	 */
 	if (*fp) {
-		rcu_read_lock();
 		kill_fasync_rcu(rcu_dereference(*fp), sig, band);
-		rcu_read_unlock();
 	}
 }
 EXPORT_SYMBOL(kill_fasync);
-- 
2.7.4