| Message ID | 1387215079-29897-1-git-send-email-robbat2@gentoo.org |
|---|---|
| State | Not Applicable |
| Delegated to: | David Miller |
| Headers | show |
On Mon, Dec 16, 2013 at 09:31:19AM -0800, Robin H. Johnson wrote: > A user on StackExchange had a failing SSD that's soldered directly onto > the motherboard of his system. The BIOS does not give any option to > disable it at all, so he can't just hide it from the OS via the BIOS. > > The old IDE layer had hdX=noprobe override for situations like this, but > that was never ported to the libata layer. > > This patch implements a disable flag for libata.force. > Example use: > libata.force=2.0:disable > > [v2 of the patch, removed the nodisable flag per Tejun Heo] > > Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> > X-URL: http://unix.stackexchange.com/questions/102648/how-to-tell-linux-kernel-3-0-to-completely-ignore-a-failing-disk > X-URL: http://askubuntu.com/questions/352836/how-can-i-tell-linux-kernel-to-completely-ignore-a-disk-as-if-it-was-not-even-co > X-URL: http://superuser.com/questions/599333/how-to-disable-kernel-probing-for-drive Applied to libata/for-3.13-fixes w/ stable cc'd and minor description edits. Thanks.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 50680a5..b9e9bd8 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1529,6 +1529,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted. * atapi_dmadir: Enable ATAPI DMADIR bridge support + * disable: Disable this device. + If there are multiple matching configurations changing the same attribute, the last one is used. diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 75b9367..70529b8 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6519,6 +6519,7 @@ static int __init ata_parse_force_one(char **cur, { "norst", .lflags = ATA_LFLAG_NO_HRST | ATA_LFLAG_NO_SRST }, { "rstonce", .lflags = ATA_LFLAG_RST_ONCE }, { "atapi_dmadir", .horkage_on = ATA_HORKAGE_ATAPI_DMADIR }, + { "disable", .horkage_on = ATA_HORKAGE_DISABLE }, }; char *start = *cur, *p = *cur; char *id, *val, *endp;
A user on StackExchange had a failing SSD that's soldered directly onto the motherboard of his system. The BIOS does not give any option to disable it at all, so he can't just hide it from the OS via the BIOS. The old IDE layer had hdX=noprobe override for situations like this, but that was never ported to the libata layer. This patch implements a disable flag for libata.force. Example use: libata.force=2.0:disable [v2 of the patch, removed the nodisable flag per Tejun Heo] Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> X-URL: http://unix.stackexchange.com/questions/102648/how-to-tell-linux-kernel-3-0-to-completely-ignore-a-failing-disk X-URL: http://askubuntu.com/questions/352836/how-can-i-tell-linux-kernel-to-completely-ignore-a-disk-as-if-it-was-not-even-co X-URL: http://superuser.com/questions/599333/how-to-disable-kernel-probing-for-drive --- Documentation/kernel-parameters.txt | 2 ++ drivers/ata/libata-core.c | 1 + 2 files changed, 3 insertions(+)