locks: move locks_free_lock calls in do_fcntl_add_lease outside spinlock

There's no need to call locks_free_lock here while still holding the
i_lock. Defer that until the lock has been dropped.

Acked-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>

diff --git a/fs/locks.c b/fs/locks.c
index 4ce087c..cb66fb0 100644 (file)
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1761,13 +1761,10 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
        ret = fl;
        spin_lock(&inode->i_lock);
        error = __vfs_setlease(filp, arg, &ret);
-       if (error) {
-               spin_unlock(&inode->i_lock);
-               locks_free_lock(fl);
-               goto out_free_fasync;
-       }
-       if (ret != fl)
-               locks_free_lock(fl);
+       if (error)
+               goto out_unlock;
+       if (ret == fl)
+               fl = NULL;
 
        /*
         * fasync_insert_entry() returns the old entry if any.
@@ -1779,9 +1776,10 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
                new = NULL;
 
        error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
+out_unlock:
        spin_unlock(&inode->i_lock);
-
-out_free_fasync:
+       if (fl)
+               locks_free_lock(fl);
        if (new)
                fasync_free(new);
        return error;