X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=fs%2Fread_write.c;fp=fs%2Fread_write.c;h=782dfc3acebcf038db62116ab65536fc28ed8a6a;hb=1bf9d14dff4a2c4de6152c6f751bdaf6896b68bb;hp=f646c8b565b913d5cbe02a5dafb2aba5a4b163ef;hpb=0747fdb2bd59d9404ae2345cbddd7d837c5c4648;p=~andy%2Flinux

diff --git a/fs/read_write.c b/fs/read_write.c
index f646c8b565b..782dfc3aceb 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -144,6 +144,26 @@ loff_t generic_file_llseek(struct file *file, loff_t offset, int whence)
 }
 EXPORT_SYMBOL(generic_file_llseek);
 
+/**
+ * fixed_size_llseek - llseek implementation for fixed-sized devices
+ * @file:	file structure to seek on
+ * @offset:	file offset to seek to
+ * @whence:	type of seek
+ * @size:	size of the file
+ *
+ */
+loff_t fixed_size_llseek(struct file *file, loff_t offset, int whence, loff_t size)
+{
+	switch (whence) {
+	case SEEK_SET: case SEEK_CUR: case SEEK_END:
+		return generic_file_llseek_size(file, offset, whence,
+						size, size);
+	default:
+		return -EINVAL;
+	}
+}
+EXPORT_SYMBOL(fixed_size_llseek);
+
 /**
  * noop_llseek - No Operation Performed llseek implementation
  * @file:	file structure to seek on