X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=fs%2Fautofs4%2Fautofs_i.h;h=756d3286bee5b1dd4211f73d7932da84f36c3586;hb=60cbc8c9108be5542b8b7b9e16231fdee062f6d9;hp=475f9c597cb7c0dd86bce6a0c42602377d33fc14;hpb=655402d41742cc8e490f4357745408d361bdd2d4;p=kernel%2Flinux-3.0.git

diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 475f9c5..756d328 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -278,6 +278,17 @@ 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);