X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=mm%2Ftiny-shmem.c;h=f9d6a9cc91c4bc806700c6119f45e34283abdeb7;hb=8d231c11fd0b694c447e59e687754b6999eea0a2;hp=b58abcf44ed658e0a44b129a216a16e5cfc6f2d7;hpb=1480d0a31db62b9803f829cc0e5cc71935ffe3cc;p=linux-2.6-omap-h63xx.git

diff --git a/mm/tiny-shmem.c b/mm/tiny-shmem.c
index b58abcf44ed..f9d6a9cc91c 100644
--- a/mm/tiny-shmem.c
+++ b/mm/tiny-shmem.c
@@ -81,13 +81,19 @@ struct file *shmem_file_setup(char *name, loff_t size, unsigned long flags)
 		goto close_file;
 
 	d_instantiate(dentry, inode);
-	inode->i_size = size;
 	inode->i_nlink = 0;	/* It is unlinked */
+
 	file->f_vfsmnt = mntget(shm_mnt);
 	file->f_dentry = dentry;
 	file->f_mapping = inode->i_mapping;
 	file->f_op = &ramfs_file_operations;
 	file->f_mode = FMODE_WRITE | FMODE_READ;
+
+	/* notify everyone as to the change of file size */
+	error = do_truncate(dentry, size, 0, file);
+	if (error < 0)
+		goto close_file;
+
 	return file;
 
 close_file:
@@ -123,3 +129,24 @@ int shmem_unuse(swp_entry_t entry, struct page *page)
 {
 	return 0;
 }
+
+int shmem_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	file_accessed(file);
+#ifndef CONFIG_MMU
+	return ramfs_nommu_mmap(file, vma);
+#else
+	return 0;
+#endif
+}
+
+#ifndef CONFIG_MMU
+unsigned long shmem_get_unmapped_area(struct file *file,
+				      unsigned long addr,
+				      unsigned long len,
+				      unsigned long pgoff,
+				      unsigned long flags)
+{
+	return ramfs_nommu_get_unmapped_area(file, addr, len, pgoff, flags);
+}
+#endif