diff options
| -rw-r--r-- | drivers/scsi/sd.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index b041eca8955d..95bfb7bfbb9d 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -656,7 +656,7 @@ static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode) unsigned int logical_block_size = sdkp->device->sector_size; unsigned int max_blocks = 0; - q->limits.discard_zeroes_data = sdkp->lbprz; + q->limits.discard_zeroes_data = 0; q->limits.discard_alignment = sdkp->unmap_alignment * logical_block_size; q->limits.discard_granularity = @@ -680,11 +680,13 @@ static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode) case SD_LBP_WS16: max_blocks = min_not_zero(sdkp->max_ws_blocks, (u32)SD_MAX_WS16_BLOCKS); + q->limits.discard_zeroes_data = sdkp->lbprz; break; case SD_LBP_WS10: max_blocks = min_not_zero(sdkp->max_ws_blocks, (u32)SD_MAX_WS10_BLOCKS); + q->limits.discard_zeroes_data = sdkp->lbprz; break; case SD_LBP_ZERO: @@ -2622,12 +2624,12 @@ static void sd_read_block_limits(struct scsi_disk *sdkp) } else { /* LBP VPD page tells us what to use */ - if (sdkp->lbpu && sdkp->max_unmap_blocks) - sd_config_discard(sdkp, SD_LBP_UNMAP); - else if (sdkp->lbpws) + if (sdkp->lbpws) sd_config_discard(sdkp, SD_LBP_WS16); else if (sdkp->lbpws10) sd_config_discard(sdkp, SD_LBP_WS10); + else if (sdkp->lbpu && sdkp->max_unmap_blocks) + sd_config_discard(sdkp, SD_LBP_UNMAP); else sd_config_discard(sdkp, SD_LBP_DISABLE); } |