The following commit has been merged into the locking/core branch of tip:
Commit-ID: c0c2c0dad6a06e0c05e9a52d65f932bd54364c97
Gitweb: https://git.kernel.org/tip/c0c2c0dad6a06e0c05e9a52d65f932bd54364c97
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Thu, 17 Jun 2021 20:57:19 +02:00
Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Tue, 22 Jun 2021 16:42:08 +02:00
lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING
When PROVE_RAW_LOCK_NESTING=y many of the selftests FAILED because
HARDIRQ context is out-of-bounds for spinlocks. Instead make the
default hardware context the threaded hardirq context, which preserves
the old locking rules.
The wait-type specific locking selftests will have a non-threaded
HARDIRQ variant.
Fixes: de8f5e4f2dc1 ("lockdep: Introduce wait-type checks")
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Tested-by: Joerg Roedel <jroedel@xxxxxxx>
Link: https://lore.kernel.org/r/20210617190313.322096283@xxxxxxxxxxxxx
---
lib/locking-selftest.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index 5c50b09..af12e84 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -195,6 +195,7 @@ static void init_shared_classes(void)
#define HARDIRQ_ENTER() \
local_irq_disable(); \
__irq_enter(); \
+ lockdep_hardirq_threaded(); \
WARN_ON(!in_irq());
#define HARDIRQ_EXIT() \
|