diff options
| author | Ishan Mittal <imittal@nvidia.com> | 2014-06-05 13:31:21 +0530 |
|---|---|---|
| committer | Ishan Mittal <imittal@nvidia.com> | 2014-06-05 13:37:37 +0530 |
| commit | dce68ca8e1015cf5bcd33284c0c1c9191e79885d (patch) | |
| tree | 7fed5c66956b9ffeadac67750aa042fc9b70f1a1 /drivers/ata | |
| parent | 60ca8709496cbcfe7dc931a2ec8786f82b2761eb (diff) | |
| parent | be67db109090b17b56eb8eb2190cd70700f107aa (diff) | |
Merge branch 'linux-3.10.40' into rel-21
Bug 200004122
Conflicts:
drivers/cpufreq/cpufreq.c
drivers/regulator/core.c
sound/soc/codecs/max98090.c
Change-Id: I9418a05ad5c56b2e902249218bac2fa594d99f56
Signed-off-by: Ishan Mittal <imittal@nvidia.com>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-core.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 15518fda2d2a..9cf616b5210b 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4152,6 +4152,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { /* Seagate Momentus SpinPoint M8 seem to have FPMDA_AA issues */ { "ST1000LM024 HN-M101MBB", "2AR10001", ATA_HORKAGE_BROKEN_FPDMA_AA }, + { "ST1000LM024 HN-M101MBB", "2BA30001", ATA_HORKAGE_BROKEN_FPDMA_AA }, /* Blacklist entries taken from Silicon Image 3124/3132 Windows driver .inf file - also several Linux problem reports */ @@ -4764,21 +4765,26 @@ void swap_buf_le16(u16 *buf, unsigned int buf_words) static struct ata_queued_cmd *ata_qc_new(struct ata_port *ap) { struct ata_queued_cmd *qc = NULL; - unsigned int i; + unsigned int i, tag; /* no command while frozen */ if (unlikely(ap->pflags & ATA_PFLAG_FROZEN)) return NULL; - /* the last tag is reserved for internal command. */ - for (i = 0; i < ATA_MAX_QUEUE - 1; i++) - if (!test_and_set_bit(i, &ap->qc_allocated)) { - qc = __ata_qc_from_tag(ap, i); + for (i = 0; i < ATA_MAX_QUEUE; i++) { + tag = (i + ap->last_tag + 1) % ATA_MAX_QUEUE; + + /* the last tag is reserved for internal command. */ + if (tag == ATA_TAG_INTERNAL) + continue; + + if (!test_and_set_bit(tag, &ap->qc_allocated)) { + qc = __ata_qc_from_tag(ap, tag); + qc->tag = tag; + ap->last_tag = tag; break; } - - if (qc) - qc->tag = i; + } return qc; } |