Pass mode to wait_on_atomic_t() action funcs and provide default actions

Make wait_on_atomic_t() pass the TASK_* mode onto its action function as an
extra argument and make it 'unsigned int throughout.

Also, consolidate a bunch of identical action functions into a default
function that can do the appropriate thing for the mode.

Also, change the argument name in the bit_wait*() function declarations to
reflect the fact that it's the mode and not the bit number.

[Peter Z gives this a grudging ACK, but thinks that the whole atomic_t wait
should be done differently, though he's not immediately sure as to how]

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
cc: Ingo Molnar <mingo@kernel.org>

1 files changed, 2 insertions, 8 deletions

diff --git a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
index 828904b7d468..54fc571b1102 100644
--- a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
@@ -271,13 +271,7 @@ struct igt_wakeup {
 	u32 seqno;
 };
 
-static int wait_atomic(atomic_t *p)
-{
-	schedule();
-	return 0;
-}
-
-static int wait_atomic_timeout(atomic_t *p)
+static int wait_atomic_timeout(atomic_t *p, unsigned int mode)
 {
 	return schedule_timeout(10 * HZ) ? 0 : -ETIMEDOUT;
 }
@@ -348,7 +342,7 @@ static void igt_wake_all_sync(atomic_t *ready,
 	atomic_set(ready, 0);
 	wake_up_all(wq);
 
-	wait_on_atomic_t(set, wait_atomic, TASK_UNINTERRUPTIBLE);
+	wait_on_atomic_t(set, atomic_t_wait, TASK_UNINTERRUPTIBLE);
 	atomic_set(ready, count);
 	atomic_set(done, count);
 }