Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/fs/udf/lowlevel.c b/fs/udf/lowlevel.c
new file mode 100644
index 0000000..2da5087
--- /dev/null
+++ b/fs/udf/lowlevel.c
@@ -0,0 +1,77 @@
+/*
+ * lowlevel.c
+ *
+ * PURPOSE
+ * Low Level Device Routines for the UDF filesystem
+ *
+ * CONTACTS
+ * E-mail regarding any portion of the Linux UDF file system should be
+ * directed to the development team mailing list (run by majordomo):
+ * linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ * This file is distributed under the terms of the GNU General Public
+ * License (GPL). Copies of the GPL can be obtained from:
+ * ftp://prep.ai.mit.edu/pub/gnu/GPL
+ * Each contributing author retains all rights to their own work.
+ *
+ * (C) 1999-2001 Ben Fennema
+ *
+ * HISTORY
+ *
+ * 03/26/99 blf Created.
+ */
+
+#include "udfdecl.h"
+
+#include <linux/blkdev.h>
+#include <linux/cdrom.h>
+#include <asm/uaccess.h>
+
+#include <linux/udf_fs.h>
+#include "udf_sb.h"
+
+unsigned int
+udf_get_last_session(struct super_block *sb)
+{
+ struct cdrom_multisession ms_info;
+ unsigned int vol_desc_start;
+ struct block_device *bdev = sb->s_bdev;
+ int i;
+
+ vol_desc_start=0;
+ ms_info.addr_format=CDROM_LBA;
+ i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info);
+
+#define WE_OBEY_THE_WRITTEN_STANDARDS 1
+
+ if (i == 0)
+ {
+ udf_debug("XA disk: %s, vol_desc_start=%d\n",
+ (ms_info.xa_flag ? "yes" : "no"), ms_info.addr.lba);
+#if WE_OBEY_THE_WRITTEN_STANDARDS
+ if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */
+#endif
+ vol_desc_start = ms_info.addr.lba;
+ }
+ else
+ {
+ udf_debug("CDROMMULTISESSION not supported: rc=%d\n", i);
+ }
+ return vol_desc_start;
+}
+
+unsigned long
+udf_get_last_block(struct super_block *sb)
+{
+ struct block_device *bdev = sb->s_bdev;
+ unsigned long lblock = 0;
+
+ if (ioctl_by_bdev(bdev, CDROM_LAST_WRITTEN, (unsigned long) &lblock))
+ lblock = bdev->bd_inode->i_size >> sb->s_blocksize_bits;
+
+ if (lblock)
+ return lblock - 1;
+ else
+ return 0;
+}