Re: [PATCH v3] io_uring: annotate remote tasks for kcoverage

On Tue, Jun 23, 2026 at 6:37 PM Jann Horn <[email protected]> wrote:
> On Tue, May 26, 2026 at 6:49 PM Robert Femmer <[email protected]> wrote:
> > Fuzzers use coverage information to guide generation of test cases
> > towards new or interesting code paths. Syzkaller, specifically, makes
> > use kcoverage (CONFIG_KCOV). Coverage information is not collected for
> > kernel tasks unless annotated by kcov_remote_start and kcov_remote_stop.
> > This patch annotates io-uring's work queue and sqpoll tasks.
>
> I think this is a useful change overall.
>
> @maintainers: For context, this should have no impact on normal builds
> - "struct kcov_common_handle_id" is zero-sized in normal builds, and
> all the helpers used here are empty inline functions.

(That was supposed to be "are empty inline functions in normal
builds". I should've re-read this before hitting send...)

> > Depends-on: 20260430-kcov-refactor-common-handle-v1-1-23a0c7a0ba38@google.com

(This landed in mainline in the current merge window.)