From: Andrew Morton <akpm@linux-foundation.org>

Fix CONFIG_MMU=n build (vmalloc_op undefined)

Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/proc/proc_misc.c |    4 ++++
 1 file changed, 4 insertions(+)

diff -puN fs/proc/proc_misc.c~vmalloc-show-vmalloced-areas-via-proc-vmallocinfo-fix-2 fs/proc/proc_misc.c
--- a/fs/proc/proc_misc.c~vmalloc-show-vmalloced-areas-via-proc-vmallocinfo-fix-2
+++ a/fs/proc/proc_misc.c
@@ -456,6 +456,7 @@ static const struct file_operations proc
 #endif
 #endif
 
+#ifdef CONFIG_MMU
 static int vmalloc_open(struct inode *inode, struct file *file)
 {
 	return seq_open(file, &vmalloc_op);
@@ -467,6 +468,7 @@ static const struct file_operations proc
 	.llseek		= seq_lseek,
 	.release	= seq_release,
 };
+#endif
 
 static int show_stat(struct seq_file *p, void *v)
 {
@@ -881,7 +883,9 @@ void __init proc_misc_init(void)
 	create_seq_entry("slab_allocators", 0 ,&proc_slabstats_operations);
 #endif
 #endif
+#ifdef CONFIG_MMU
 	proc_create("vmallocinfo", S_IRUSR, NULL, &proc_vmalloc_operations);
+#endif
 	create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
 	create_seq_entry("pagetypeinfo", S_IRUGO, &pagetypeinfo_file_ops);
 	create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations);
_