Messages in this thread | | | Date | Thu, 20 Jul 2006 20:16:23 -0400 | From | Jeff Garzik <> | Subject | Re: [PATCH] Promise 'stex' driver |
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James Bottomley wrote: > On Thu, 2006-07-20 at 17:27 -0400, Jeff Garzik wrote: >> Since _no individual SCSI driver_ uses the block layer >> tagging, it is likely that some instability and core kernel >> development >> will occur, in order to make that work. > > That's not quite true: 53c700 and tmscsim both use it ... I could with > the usage were wider, but at least 53c700 has pretty regular and > constant usage ... enough I think to validate the block tag code (it's > been using it for the last three years).
Not for the case being discussed in this thread, adapter-wide tags.
AFAICS, no file in include/scsi/* or drivers/scsi/* ever calls blk_queue_init_tags() with a non-NULL third arg.
The block tagging capability being discussed here is poorly validated due to overall underuse, and its never been used in SCSI AFAIK.
Jeff
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