[PATCH] tmpfs 3/6 use generic_file_llseek

[Hugh Dickins]

default_llseek's use of BKL and not i_sem was recently exposed:
tmpfs should be using generic_file_llseek which guards with i_sem.

--- tmpfs2/mm/shmem.c	Tue Apr  1 21:34:59 2003
+++ tmpfs3/mm/shmem.c	Tue Apr  1 21:35:10 2003
@@ -1749,6 +1749,7 @@
 static struct file_operations shmem_file_operations = {
 	.mmap		= shmem_mmap,
 #ifdef CONFIG_TMPFS
+	.llseek		= generic_file_llseek,
 	.read		= shmem_file_read,
 	.write		= shmem_file_write,
 	.fsync		= simple_sync_file,