Merge branch 'stable-3.2' into pandora-3.2

[pandora-kernel.git] / fs / autofs4 / autofs_i.h

diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 326dc08..650d520 100644 (file)
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -268,6 +268,17 @@ int autofs4_fill_super(struct super_block *, void *, int);
 struct autofs_info *autofs4_new_ino(struct autofs_sb_info *);
 void autofs4_clean_ino(struct autofs_info *);
 
+static inline int autofs_prepare_pipe(struct file *pipe)
+{
+       if (!pipe->f_op || !pipe->f_op->write)
+               return -EINVAL;
+       if (!S_ISFIFO(pipe->f_dentry->d_inode->i_mode))
+               return -EINVAL;
+       /* We want a packet pipe */
+       pipe->f_flags |= O_DIRECT;
+       return 0;
+}
+
 /* Queue management functions */
 
 int autofs4_wait(struct autofs_sb_info *,struct dentry *, enum autofs_notify);