Messages in this thread |  | | From | Anup Patel <> | Date | Fri, 18 Aug 2017 11:42:16 +0530 | Subject | Re: [PATCH v2 09/16] dmaengine: bcm-sba-raid: Improve sba_issue_pending() run duration |
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On Thu, Aug 17, 2017 at 12:06 PM, Vinod Koul <vinod.koul@intel.com> wrote: > On Tue, Aug 01, 2017 at 04:07:53PM +0530, Anup Patel wrote: >> The pending sba_request list can become very long in real-life usage >> (e.g. setting up RAID array) which can cause sba_issue_pending() to >> run for long duration. > > that raises the warning flags.. Even if we have a long pending list why > would issue_pending run for long. The purpose of the issue_pending() is to > submit a txn if idle and return. The interrupt and tasklet shall push the > subsequent txn to hardware...
Yes, we are doing very similar thing in PATCH13 by further simplifying sba_process_deferred_requests()
Regards, Anup
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