diff options
Diffstat (limited to 'tools/memory-model/linux-kernel.bell')
| -rw-r--r-- | tools/memory-model/linux-kernel.bell | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/memory-model/linux-kernel.bell b/tools/memory-model/linux-kernel.bell index 353c8d68e030..9c42cd9ddcb4 100644 --- a/tools/memory-model/linux-kernel.bell +++ b/tools/memory-model/linux-kernel.bell @@ -33,6 +33,12 @@ enum Barriers = 'wmb (*smp_wmb*) || 'after-unlock-lock (*smp_mb__after_unlock_lock*) instructions F[Barriers] +(* SRCU *) +enum SRCU = 'srcu-lock || 'srcu-unlock || 'sync-srcu +instructions SRCU[SRCU] +(* All srcu events *) +let Srcu = Srcu-lock | Srcu-unlock | Sync-srcu + (* Compute matching pairs of nested Rcu-lock and Rcu-unlock *) let rcu-rscs = let rec unmatched-locks = Rcu-lock \ domain(matched) @@ -48,3 +54,22 @@ let rcu-rscs = let rec (* Validate nesting *) flag ~empty Rcu-lock \ domain(rcu-rscs) as unbalanced-rcu-locking flag ~empty Rcu-unlock \ range(rcu-rscs) as unbalanced-rcu-locking + +(* Compute matching pairs of nested Srcu-lock and Srcu-unlock *) +let srcu-rscs = let rec + unmatched-locks = Srcu-lock \ domain(matched) + and unmatched-unlocks = Srcu-unlock \ range(matched) + and unmatched = unmatched-locks | unmatched-unlocks + and unmatched-po = ([unmatched] ; po ; [unmatched]) & loc + and unmatched-locks-to-unlocks = + ([unmatched-locks] ; po ; [unmatched-unlocks]) & loc + and matched = matched | (unmatched-locks-to-unlocks \ + (unmatched-po ; unmatched-po)) + in matched + +(* Validate nesting *) +flag ~empty Srcu-lock \ domain(srcu-rscs) as unbalanced-srcu-locking +flag ~empty Srcu-unlock \ range(srcu-rscs) as unbalanced-srcu-locking + +(* Check for use of synchronize_srcu() inside an RCU critical section *) +flag ~empty rcu-rscs & (po ; [Sync-srcu] ; po) as invalid-sleep |