Marco Elver 08cac60494
kcsan: Reduce get_ctx() uses in kcsan_found_watchpoint() ...
There are a number get_ctx() calls that are close to each other, which
results in poor codegen (repeated preempt_count loads).
Specifically in kcsan_found_watchpoint() (even though it's a slow-path)
it is beneficial to keep the race-window small until the watchpoint has
actually been consumed to avoid missed opportunities to report a race.
Let's clean it up a bit before we add more code in
kcsan_found_watchpoint().
Signed-off-by: Marco Elver <elver@google.com >
Acked-by: Mark Rutland <mark.rutland@arm.com >
Signed-off-by: Paul E. McKenney <paulmck@kernel.org >
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08cac60494