linux-kernel - [RFC PATCH 05/86] Revert "kcsan: Use preemption model accessors"

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Date:   Tue,  7 Nov 2023 13:56:51 -0800
From:   Ankur Arora <ankur.a.arora@...cle.com>
To:     linux-kernel@...r.kernel.org
Cc:     tglx@...utronix.de, peterz@...radead.org,
        torvalds@...ux-foundation.org, paulmck@...nel.org,
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        Ankur Arora <ankur.a.arora@...cle.com>
Subject: [RFC PATCH 05/86] Revert "kcsan: Use preemption model accessors"

This reverts commit 5693fa74f98afed5421ac0165e9e9291bde7d9e1.

Signed-off-by: Ankur Arora <ankur.a.arora@...cle.com>
---
 kernel/kcsan/kcsan_test.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/kcsan/kcsan_test.c b/kernel/kcsan/kcsan_test.c
index 0ddbdab5903d..6f46fd7998ce 100644
--- a/kernel/kcsan/kcsan_test.c
+++ b/kernel/kcsan/kcsan_test.c
@@ -1385,14 +1385,13 @@ static const void *nthreads_gen_params(const void *prev, char *desc)
 	else
 		nthreads *= 2;
 
-	if (!preempt_model_preemptible() ||
-	    !IS_ENABLED(CONFIG_KCSAN_INTERRUPT_WATCHER)) {
+	if (!IS_ENABLED(CONFIG_PREEMPT) || !IS_ENABLED(CONFIG_KCSAN_INTERRUPT_WATCHER)) {
 		/*
 		 * Without any preemption, keep 2 CPUs free for other tasks, one
 		 * of which is the main test case function checking for
 		 * completion or failure.
 		 */
-		const long min_unused_cpus = preempt_model_none() ? 2 : 0;
+		const long min_unused_cpus = IS_ENABLED(CONFIG_PREEMPT_NONE) ? 2 : 0;
 		const long min_required_cpus = 2 + min_unused_cpus;
 
 		if (num_online_cpus() < min_required_cpus) {
-- 
2.31.1