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| author | Peter Zijlstra <peterz@infradead.org> | 2021-06-17 20:57:19 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-06-22 16:42:08 +0200 |
| commit | c0c2c0dad6a06e0c05e9a52d65f932bd54364c97 (patch) | |
| tree | 16360ca59aa6033e6ae6b5de2db9ea19709b4397 /lib/locking-selftest.c | |
| parent | f8b298cc39f0619544c607eaef09fd0b2afd10f3 (diff) | |
| download | lwn-c0c2c0dad6a06e0c05e9a52d65f932bd54364c97.tar.gz lwn-c0c2c0dad6a06e0c05e9a52d65f932bd54364c97.zip | |
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@infradead.org>
Tested-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20210617190313.322096283@infradead.org
Diffstat (limited to 'lib/locking-selftest.c')
| -rw-r--r-- | lib/locking-selftest.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c index 5c50b0910396..af12e848a3ed 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() \ |