diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2012-06-22 08:41:41 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-08-24 11:04:08 +0200 |
| commit | ca6d43b051b5a061b33c43303b6b4c93b46a34b5 (patch) | |
| tree | 159875541331b8e087d058a107a6393f287511d0 /drivers/ata | |
| parent | Linux 3.6-rc2 (diff) | |
| download | linux-ca6d43b051b5a061b33c43303b6b4c93b46a34b5.tar.xz linux-ca6d43b051b5a061b33c43303b6b4c93b46a34b5.zip | |
[SCSI] libata: reset once
Hotplug testing with libsas currently encounters a 55 second wait for
link recovery to give up. In the case where the user trusts the
response time of their devices permit the recovery attempts to be
limited to one.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-core.c | 1 | ||||
| -rw-r--r-- | drivers/ata/libata-eh.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index fadd5866d40f..70964aabcb89 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6387,6 +6387,7 @@ static int __init ata_parse_force_one(char **cur, { "nohrst", .lflags = ATA_LFLAG_NO_HRST }, { "nosrst", .lflags = ATA_LFLAG_NO_SRST }, { "norst", .lflags = ATA_LFLAG_NO_HRST | ATA_LFLAG_NO_SRST }, + { "rstonce", .lflags = ATA_LFLAG_RST_ONCE }, }; char *start = *cur, *p = *cur; char *id, *val, *endp; diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 7d4535e989bf..100428dde421 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2623,6 +2623,8 @@ int ata_eh_reset(struct ata_link *link, int classify, */ while (ata_eh_reset_timeouts[max_tries] != ULONG_MAX) max_tries++; + if (link->flags & ATA_LFLAG_RST_ONCE) + max_tries = 1; if (link->flags & ATA_LFLAG_NO_HRST) hardreset = NULL; if (link->flags & ATA_LFLAG_NO_SRST) |