| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <200902182018.52195.bzolnier@gmail.com> Date: Wed, 18 Feb 2009 20:18:51 +0100 From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com> To: linux-ide@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Borislav Petkov <petkovbb@...il.com> Subject: [PATCH] ide-cd: document capacity hack From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com> Subject: [PATCH] ide-cd: document capacity hack Just copy the comment from drivers/scsi/sr.c::sr_done() (from which the capacity hack has been originated). Cc: Borislav Petkov <petkovbb@...il.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com> --- drivers/ide/ide-cd.c | 8 ++++++++ 1 file changed, 8 insertions(+) Index: b/drivers/ide/ide-cd.c =================================================================== --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -189,6 +189,14 @@ static void cdrom_analyze_sense_data(ide bio_sectors = max(bio_sectors(failed_command->bio), 4U); sector &= ~(bio_sectors - 1); + /* + * The SCSI specification allows for the value + * returned by READ CAPACITY to be up to 75 2K + * sectors past the last readable block. + * Therefore, if we hit a medium error within the + * last 75 2K sectors, we decrease the saved size + * value. + */ if (sector < get_capacity(info->disk) && drive->probed_capacity - sector < 4 * 75) set_capacity(info->disk, sector); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists