[PATCH] fix ->llseek for more directories

With this patch all directory fops instances that have a readdir
that doesn't take the BKL are switched to generic_file_llseek.

Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 945a810..5fe210c 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -353,6 +353,7 @@
 
 static const struct file_operations proc_sys_dir_file_operations = {
 	.readdir	= proc_sys_readdir,
+	.llseek		= generic_file_llseek,
 };
 
 static const struct inode_operations proc_sys_inode_operations = {