busdma_bounce: Use a simple kproc to invoke deferred requests.
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Authored by jhb on Apr 19 2022, 5:35 PM.

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rGd11f5d4762c5: busdma_bounce: Use a simple kproc to invoke deferred requests.

Summary

Rather than using a software interrupt with a single handler, just
create a dedicated kernel process woken up with a simple wakeup().

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rG FreeBSD src repository

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jhb requested review of this revision.Apr 19 2022, 5:35 PM

jhb created this revision.

Harbormaster completed remote builds in B45234: Diff 105178.Apr 19 2022, 5:35 PM

jhb added a child revision: D34966: busdma_bounce: Make the map waiting list per-bounce-zone..Apr 19 2022, 5:35 PM

imp accepted this revision.Apr 19 2022, 8:25 PM

This revision is now accepted and ready to land.Apr 19 2022, 8:25 PM

Closed by commit rGd11f5d4762c5: busdma_bounce: Use a simple kproc to invoke deferred requests. (authored by jhb). · Explain WhyApr 21 2022, 7:02 PM

This revision was automatically updated to reflect the committed changes.

jhb added a commit: rGd11f5d4762c5: busdma_bounce: Use a simple kproc to invoke deferred requests..

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sys/

kern/

subr_busdma_bounce.c

67 lines

Diff 105301

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sys/kern/subr_busdma_bounce.c

busdma_bounce: Use a simple kproc to invoke deferred requests.ClosedPublicActions