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libata: remove SCT WRITE SAME support

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This was already disabled a while ago because it caused I/O errors,
and it's severly getting into the way of the discard / write zeroes
rework.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Christoph Hellwig 2017-04-25 14:26:52 +02:00 • committed by Tejun Heo
parent c6ade20f5e
commit 63ccc19164
2 changed files with 29 additions and 108 deletions
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5
include/linux/ata.h
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@ -817,11 +817,6 @@ static inline bool ata_id_sct_error_recovery_ctrl(const u16 *id)
return id[ATA_ID_SCT_CMD_XPORT] & (1 << 3) ? true : false;
}
static inline bool ata_id_sct_write_same(const u16 *id)
{
return id[ATA_ID_SCT_CMD_XPORT] & (1 << 2) ? true : false;
}
static inline bool ata_id_sct_long_sector_access(const u16 *id)
{
return id[ATA_ID_SCT_CMD_XPORT] & (1 << 1) ? true : false;