[PATCH v9 15/16] entry: Inline syscall_exit_work()

[Kevin Brodsky]

On 11/12/2025 07:55, Thomas Gleixner wrote:
> I have a suspicion that it is TIF_NOTIFY_RESUME. If that's the case
> you're seing the RSEQ overhead, which should be completely gone with the
> rewrite that got just merged into Linus tree.

I don't think this is related. This patch inlines syscall_exit_work(),
which is called if some flag in SYSCALL_WORK_EXIT is set. This includes
syscall-specific stuff like tracing and singlestep. TIF_NOTIFY_RESUME is
part of EXIT_TO_USER_MODE_WORK, handled in exit_to_user_mode_prepare(),
and isn't specific to syscall handling.

- Kevin