diff options
| author | Anders Roxell <anders.roxell@linaro.org> | 2016-08-10 12:11:15 +0200 |
|---|---|---|
| committer | Anders Roxell <anders.roxell@linaro.org> | 2016-08-10 12:11:15 +0200 |
| commit | a44038112d3379f49df8a9db3e1259d9e945faee (patch) | |
| tree | 198f8ef7dcba389b87dbd3cac861d896b5bfd77d /drivers/ata/libata-transport.c | |
| parent | 590e935df0c94b2d7a4584bb26906666176a6133 (diff) | |
| parent | 0e790100f1c49f32a390d0cc55801230fd04ba56 (diff) | |
Merge remote-tracking branch 'lsk/linux-linaro-lsk-v3.18' into linux-linaro-lsk-v3.18-rtlsk-v3.18-16.09-rtlinux-linaro-lsk-v3.18-rt-test
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Conflicts:
kernel/futex.c
kernel/printk/printk.c
kernel/softirq.c
mm/slub.c
mm/swap.c
Diffstat (limited to 'drivers/ata/libata-transport.c')
| -rw-r--r-- | drivers/ata/libata-transport.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c index e37413228228..fd29b7224082 100644 --- a/drivers/ata/libata-transport.c +++ b/drivers/ata/libata-transport.c @@ -559,6 +559,29 @@ show_ata_dev_gscr(struct device *dev, static DEVICE_ATTR(gscr, S_IRUGO, show_ata_dev_gscr, NULL); +static ssize_t +show_ata_dev_trim(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ata_device *ata_dev = transport_class_to_dev(dev); + unsigned char *mode; + + if (!ata_id_has_trim(ata_dev->id)) + mode = "unsupported"; + else if (ata_dev->horkage & ATA_HORKAGE_NOTRIM) + mode = "forced_unsupported"; + else if (ata_dev->horkage & ATA_HORKAGE_NO_NCQ_TRIM) + mode = "forced_unqueued"; + else if (ata_fpdma_dsm_supported(ata_dev)) + mode = "queued"; + else + mode = "unqueued"; + + return snprintf(buf, 20, "%s\n", mode); +} + +static DEVICE_ATTR(trim, S_IRUGO, show_ata_dev_trim, NULL); + static DECLARE_TRANSPORT_CLASS(ata_dev_class, "ata_device", NULL, NULL, NULL); @@ -732,6 +755,7 @@ struct scsi_transport_template *ata_attach_transport(void) SETUP_DEV_ATTRIBUTE(ering); SETUP_DEV_ATTRIBUTE(id); SETUP_DEV_ATTRIBUTE(gscr); + SETUP_DEV_ATTRIBUTE(trim); BUG_ON(count > ATA_DEV_ATTRS); i->dev_attrs[count] = NULL; |