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scsi: remove the use_clustering flag

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The same effects can be achieved by setting the dma_boundary to
PAGE_SIZE - 1 and the max_segment_size to PAGE_SIZE, so shift those
settings into the drivers.  Note that in many cases the setting might
be bogus, but this keeps the status quo.

[mkp: fix myrs and myrb]

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
This commit is contained in:
Christoph Hellwig 2018-12-13 16:17:09 +01:00 • committed by Martin K. Petersen
commit 4af14d113b
37 changed files with 34 additions and 53 deletions
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Documentation/scsi/scsi_mid_low_api.txt
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@ -1098,8 +1098,6 @@ of interest:
unchecked_isa_dma - 1=>only use bottom 16 MB of ram (ISA DMA addressing
restriction), 0=>can use full 32 bit (or better) DMA
address space
use_clustering - 1=>SCSI commands in mid level's queue can be merged,
0=>disallow SCSI command merging
no_async_abort - 1=>Asynchronous aborts are not supported
0=>Timed-out commands will be aborted asynchronously
hostt - pointer to driver's struct scsi_host_template from which