tree 138dcb6c5a26e334b794a7b81a26b366ebfe70b4
parent d98d9ee864a3982fd03c1ed56688b7d57fc4dcf2
author Pavankumar Kondeti <pkondeti@codeaurora.org> 1498631431 +0530
committer Pavankumar Kondeti <pkondeti@codeaurora.org> 1502101449 +0530

softirq: defer softirq processing to ksoftirqd if CPU is busy with RT

Defer the softirq processing to ksoftirqd if a RT task is running
or queued on the current CPU. This complements the RT task placement
algorithm which tries to find a CPU that is not currently busy with
softirqs.

Currently NET_TX, NET_RX, BLOCK and TASKLET softirqs are only deferred
as they can potentially run for long time.

Change-Id: Id7665244af6bbd5a96d9e591cf26154e9eaa860c
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>