wrappers for ->i_mutex access

parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/events/core.c b/kernel/events/core.c
index c0957416b32e..06ae52e99ac2 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4872,9 +4872,9 @@ static int perf_fasync(int fd, struct file *filp, int on)
         struct perf_event *event = filp->private_data;
         int retval;
 
-        mutex_lock(&inode->i_mutex);
+        inode_lock(inode);
         retval = fasync_helper(fd, filp, on, &event->fasync);
-        mutex_unlock(&inode->i_mutex);
+        inode_unlock(inode);
 
         if (retval < 0)
                 return retval;