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scsi: flip the default on use_clustering

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Most SCSI drivers want to enable "clustering", that is merging of
segments so that they might span more than a single page.  Remove the
ENABLE_CLUSTERING define, and require drivers to explicitly set
DISABLE_CLUSTERING to disable this feature.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig
2018-12-13 16:17:02 +01:00
committed by Martin K. Petersen
parent 4dd4130a72
commit 2a3d4eb8e2
82 changed files with 4 additions and 110 deletions
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1
drivers/s390/scsi/zfcp_scsi.c
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@@ -429,7 +429,6 @@ static struct scsi_host_template zfcp_scsi_host_template = {
* ZFCP_QDIO_MAX_SBALS_PER_REQ) - 2) * 8,
/* GCD, adjusted later */
.dma_boundary = ZFCP_QDIO_SBALE_LEN - 1,
.use_clustering = 1,
.shost_attrs = zfcp_sysfs_shost_attrs,
.sdev_attrs = zfcp_sysfs_sdev_attrs,
.track_queue_depth = 1,