locks: Use inode_is_open_for_write

Use the aptly named function rather than open coding it. No functional
changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>

diff --git a/fs/locks.c b/fs/locks.c
index b6b4397..f0b24d9 100644 (file)
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1766,7 +1766,7 @@ check_conflicting_open(const struct dentry *dentry, const long arg, int flags)
        if (flags & FL_LAYOUT)
                return 0;
 
-       if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0))
+       if ((arg == F_RDLCK) && inode_is_open_for_write(inode))
                return -EAGAIN;
 
        if ((arg == F_WRLCK) && ((d_count(dentry) > 1) ||