From 88351d384113772a62b799a613aa7a97b4a8ddd6 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 29 Dec 2003 23:48:11 -0800 Subject: [PATCH] [PATCH] Remove iso9660 check for sbsector < 660Mb From: Jon Burgess The iso9660 filesystem code checks that the "sbsector" option is positioned within the first 660Mb of the disk. Today the iso9660 filesystem is used on DVD's which are much bigger than 660Mb and this check prevents the sbsector option being used to specify the location of the superblock of multisession DVD's. With this check removed I can mount the second session on a DVD-R by specifying the sbsector, even though the firmware on that drive returns bogus data for the TOC. If an invalid large sector number is entered then a "request beyond end of device" error is reported elsewhere in the block code, but appears to do no damage. --- fs/isofs/inode.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index bee7de9b4603f..0c21ca81fc7e6 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -447,10 +447,7 @@ static int parse_options(char *options, struct iso9660_options * popt) case Opt_sb: if (match_int(&args[0], &option)) return 0; - n = option; - if (n > 660 * 512) - return 0; - popt->sbsector = n; + popt->sbsector = option; break; case Opt_check_r: popt->check = 'r'; -- 2.53.0