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authorRobin H. Johnson <robbat2@gentoo.org>2013-12-16 09:31:19 -0800
committerTejun Heo <tj@kernel.org>2013-12-16 12:41:57 -0500
commitb8bd6dc36186fe99afa7b73e9e2d9a98ad5c4865 (patch)
treeead6b981a436b07c0dc8f40f568777d323fdabd9 /drivers/ata
parent6fec88712cea016b1fc929fee53f67e3993194a6 (diff)
downloadop-kernel-dev-b8bd6dc36186fe99afa7b73e9e2d9a98ad5c4865.zip
op-kernel-dev-b8bd6dc36186fe99afa7b73e9e2d9a98ad5c4865.tar.gz
libata: disable a disk via libata.force params
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> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org Link: http://unix.stackexchange.com/questions/102648/how-to-tell-linux-kernel-3-0-to-completely-ignore-a-failing-disk Link: http://askubuntu.com/questions/352836/how-can-i-tell-linux-kernel-to-completely-ignore-a-disk-as-if-it-was-not-even-co Link: http://superuser.com/questions/599333/how-to-disable-kernel-probing-for-drive
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index dae73ef..ff01584 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6522,6 +6522,7 @@ 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;
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