Re: [PATCH 03/18] block: fix elevator init check

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"Christoph" == Christoph Hellwig [off-list ref] writes:

Christoph> We can't initalize the elevator fields for flushes as flush
Christoph> share space in struct request with the elevator data.  But
Christoph> currently we can't commnicate that a request is a flush

communicate

Christoph> through blk_get_request as we can only pass READ or WRITE,
Christoph> and the low-level code looks at the possible NULL bio to
Christoph> check for a flush.

Christoph> Fix this by allowing to pass any block op and flags, and by
Christoph> checking for the flush flags in __get_request.

Reviewed-by: Martin K. Petersen <redacted>

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Martin K. Petersen	Oracle Linux Engineering