From: Heiko Carstens <hca@linux.ibm.com>
To: Frederic Weisbecker <frederic@kernel.org>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: [PATCH 8/9] s390/vtime: Use lockdep_assert_irqs_disabled() instead of BUG_ON()
Date: Wed, 18 Feb 2026 15:20:11 +0100 [thread overview]
Message-ID: <20260218142012.863464-9-hca@linux.ibm.com> (raw)
In-Reply-To: <20260218142012.863464-1-hca@linux.ibm.com>
Use lockdep_assert_irqs_disabled() instead of BUG_ON(). This avoids
crashing the kernel, and generates better code if CONFIG_PROVE_LOCKING
is disabled.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---
arch/s390/kernel/vtime.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 4111ff4d727c..bf48744d0912 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -48,8 +48,7 @@ static inline void set_vtimer(u64 expires)
static inline int virt_timer_forward(u64 elapsed)
{
- BUG_ON(!irqs_disabled());
-
+ lockdep_assert_irqs_disabled();
if (list_empty(&virt_timer_list))
return 0;
elapsed = atomic64_add_return(elapsed, &virt_timer_elapsed);
--
2.51.0
next prev parent reply other threads:[~2026-02-18 14:20 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-18 14:20 [PATCH 0/9] s390/idle/vtime: Minor fixes and cleanups Heiko Carstens
2026-02-18 14:20 ` [PATCH 1/9] s390/idle: Fix cpu idle exit cpu time accounting Heiko Carstens
2026-03-04 14:16 ` Frederic Weisbecker
2026-02-18 14:20 ` [PATCH 2/9] s390/vtime: Fix virtual timer forwarding Heiko Carstens
2026-03-04 14:23 ` Frederic Weisbecker
2026-02-18 14:20 ` [PATCH 3/9] s390/idle: Add comment for non obvious code Heiko Carstens
2026-03-04 14:38 ` Frederic Weisbecker
2026-02-18 14:20 ` [PATCH 4/9] s390/idle: Slightly optimize idle time accounting Heiko Carstens
2026-02-18 14:20 ` [PATCH 5/9] s390/idle: Inline update_timer_idle() Heiko Carstens
2026-03-04 15:07 ` Frederic Weisbecker
2026-02-18 14:20 ` [PATCH 6/9] s390/irq/idle: Remove psw bits early Heiko Carstens
2026-02-18 14:20 ` [PATCH 7/9] s390/vtime: Use __this_cpu_read() / get rid of READ_ONCE() Heiko Carstens
2026-03-04 14:49 ` Frederic Weisbecker
2026-02-18 14:20 ` Heiko Carstens [this message]
2026-03-04 15:08 ` [PATCH 8/9] s390/vtime: Use lockdep_assert_irqs_disabled() instead of BUG_ON() Frederic Weisbecker
2026-02-18 14:20 ` [PATCH 9/9] s390/idle: Remove psw_idle() prototype Heiko Carstens
2026-03-04 15:09 ` Frederic Weisbecker
2026-02-25 9:19 ` [PATCH 0/9] s390/idle/vtime: Minor fixes and cleanups Sven Schnelle
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