diff options
Diffstat (limited to 'kernel/locking/lockdep.c')
| -rw-r--r-- | kernel/locking/lockdep.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 88d0d4420ad2..420ba685c4e5 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -3597,6 +3597,12 @@ void lock_acquire(struct lockdep_map *lock, unsigned int subclass, raw_local_irq_save(flags); check_flags(flags); + /* + * An interrupt recursive read in interrupt context can be considered + * to be the same as a recursive read from checking perspective. + */ + if ((read == 3) && in_interrupt()) + read = 2; current->lockdep_recursion = 1; trace_lock_acquire(lock, subclass, trylock, read, check, nest_lock, ip); __lock_acquire(lock, subclass, trylock, read, check, |
