diff options
| author | Arne Fitzenreiter <arne_f@ipfire.org> | 2015-07-15 13:54:36 +0200 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-08-04 14:29:36 -0400 |
| commit | e7a84605061b205350654641d823e1ca9589ec24 (patch) | |
| tree | c6aea731ed9d5173d8e38ad26cb312e9ad2abdfa | |
| parent | 7a889192e322242945874e52b25f88c8841c8f47 (diff) | |
libata: add ATA_HORKAGE_NOTRIM
[ Upstream commit 71d126fd28de2d4d9b7b2088dbccd7ca62fad6e0 ]
Some devices lose data on TRIM whether queued or not. This patch adds
a horkage to disable TRIM.
tj: Collapsed unnecessary if() nesting.
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
| -rw-r--r-- | drivers/ata/libata-scsi.c | 3 | ||||
| -rw-r--r-- | include/linux/libata.h | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 0586f66d70fa..d6ff64248c23 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -2514,7 +2514,8 @@ static unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf) rbuf[14] = (lowest_aligned >> 8) & 0x3f; rbuf[15] = lowest_aligned; - if (ata_id_has_trim(args->id)) { + if (ata_id_has_trim(args->id) && + !(dev->horkage & ATA_HORKAGE_NOTRIM)) { rbuf[14] |= 0x80; /* TPE */ if (ata_id_has_zero_after_trim(args->id)) diff --git a/include/linux/libata.h b/include/linux/libata.h index b3a816f4c0c4..8f6a07441b85 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -429,6 +429,7 @@ enum { ATA_HORKAGE_NO_NCQ_TRIM = (1 << 19), /* don't use queued TRIM */ ATA_HORKAGE_NOLPM = (1 << 20), /* don't use LPM */ ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21), /* some WDs have broken LPM */ + ATA_HORKAGE_NOTRIM = (1 << 24), /* don't use TRIM */ /* DMA mask for user DMA control: User visible values; DO NOT renumber */ |