Messages in this thread | | | From | Bart Van Assche <> | Subject | Re: [PATCH] scsi_lib: increase {host|target|device}_busy count after dispatch cmd | Date | Thu, 1 Mar 2018 23:11:02 +0000 |
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On Mon, 2017-06-05 at 17:37 +0800, Ganesh Mahendran wrote: > In android system, when there are lots of threads running. Thread A > holding *host_busy* count is easily to be preempted, and if at the > same time, thread B set *host_blocked*, then all other threads will > be io blocked.
Hello Ganesh,
Have you considered to insert preempt_disable() and preempt_enable() calls where necessary to achieve the same effect? I think that would result in a much less intrusive patch.
Thanks,
Bart.
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