| Message ID | 5784f286.c4d0620a.69372.3def@mx.google.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Tue, Jul 12, 2016 at 09:37:02PM +0800, tom.ty89@gmail.com wrote: > From: Tom Yan <tom.ty89@gmail.com> > > Without this fix, the DRA bit of the caching mode page would not > be updated when the read look-ahead feature is toggled (e.g. with > `smartctl --set`), but will only be until, for example, the write > cache feature is touched. > > Signed-off-by: Tom Yan <tom.ty89@gmail.com> Applied to libata/for-4.8. Thanks.
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 6be7770..077daf0 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5127,7 +5127,9 @@ void ata_qc_complete(struct ata_queued_cmd *qc) switch (qc->tf.command) { case ATA_CMD_SET_FEATURES: if (qc->tf.feature != SETFEATURES_WC_ON && - qc->tf.feature != SETFEATURES_WC_OFF) + qc->tf.feature != SETFEATURES_WC_OFF && + qc->tf.feature != SETFEATURES_RA_ON && + qc->tf.feature != SETFEATURES_RA_OFF) break; /* fall through */ case ATA_CMD_INIT_DEV_PARAMS: /* CHS translation changed */ diff --git a/include/linux/ata.h b/include/linux/ata.h index 99346be..2d68793 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -409,6 +409,9 @@ enum { SETFEATURES_WC_ON = 0x02, /* Enable write cache */ SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ + SETFEATURES_RA_ON = 0xaa, /* Enable read look-ahead */ + SETFEATURES_RA_OFF = 0x55, /* Disable read look-ahead */ + /* Enable/Disable Automatic Acoustic Management */ SETFEATURES_AAM_ON = 0x42, SETFEATURES_AAM_OFF = 0xC2,