X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Framfs%2Ffile-nommu.c;h=677139b48e000d0d98100122c851eff5572aa14a;hb=9f261e011340bcd22c1dd48b465153bd78caa8c8;hp=b1ca234068f67173816c51c49bceecfe2c66bed9;hpb=2152f8536668a957ea3214735b4761e7b22ef7d8;p=linux-2.6-omap-h63xx.git

diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index b1ca234068f..677139b48e0 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -27,13 +27,13 @@
 
 static int ramfs_nommu_setattr(struct dentry *, struct iattr *);
 
-struct address_space_operations ramfs_aops = {
+const struct address_space_operations ramfs_aops = {
 	.readpage		= simple_readpage,
 	.prepare_write		= simple_prepare_write,
 	.commit_write		= simple_commit_write
 };
 
-struct file_operations ramfs_file_operations = {
+const struct file_operations ramfs_file_operations = {
 	.mmap			= ramfs_nommu_mmap,
 	.get_unmapped_area	= ramfs_nommu_get_unmapped_area,
 	.read			= generic_file_read,
@@ -283,9 +283,9 @@ unsigned long ramfs_nommu_get_unmapped_area(struct file *file,
 
 /*****************************************************************************/
 /*
- * set up a mapping
+ * set up a mapping for shared memory segments
  */
 int ramfs_nommu_mmap(struct file *file, struct vm_area_struct *vma)
 {
-	return 0;
+	return vma->vm_flags & VM_SHARED ? 0 : -ENOSYS;
 }