[dm-devel] [PATCH 01/16] block: fix elevator init check
Hannes Reinecke
hare at suse.de
Tue Jan 24 07:02:52 UTC 2017
On 01/23/2017 04:29 PM, Christoph Hellwig wrote:
> We can't initalize the elevator fields for flushes as flush share space
> in struct request with the elevator data. But currently we can't
> commnicate that a request is a flush through blk_get_request as we
> can only pass READ or WRITE, and the low-level code looks at the
> possible NULL bio to check for a flush.
>
> Fix this by allowing to pass any block op and flags, and by checking for
> the flush flags in __get_request.
>
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
> block/blk-core.c | 26 ++++----------------------
> 1 file changed, 4 insertions(+), 22 deletions(-)
>
Reviewed-by: Hannes Reinecke <hare at suse.com>
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare at suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
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