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| author | Alan Stern <stern@rowland.harvard.edu> | 2018-11-15 17:19:44 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.ibm.com> | 2019-03-18 18:23:22 +0100 |
| commit | 0172d9e322035bf7bb66a7dfdd795c38d71dbba9 (patch) | |
| tree | 5ff3936ecfaa5a837dca01d296f72741b2f36b77 /tools/memory-model/linux-kernel.bell | |
| parent | Linux 5.1-rc1 (diff) | |
| download | linux-0172d9e322035bf7bb66a7dfdd795c38d71dbba9.tar.xz linux-0172d9e322035bf7bb66a7dfdd795c38d71dbba9.zip | |
tools/memory-model: Rename some RCU relations
In preparation for adding support for SRCU, rename "crit" to
"rcu-rscs", rename "rscs" to "rcu-rscsi", and remove the restriction
to only the outermost level of nesting.
The name change is needed for disambiguating RCU read-side critical
sections from SRCU read-side critical sections. Adding the "i" at the
end of "rcu-rscsi" emphasizes that the relation is inverted; it links
rcu_read_unlock() events to their corresponding preceding
rcu_read_lock() events.
The restriction to outermost nesting levels was never essential; it
was included mostly to show that it could be done. Rather than add
equivalent unnecessary code for SRCU lock nesting, it seemed better to
remove the existing code.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Tested-by: Andrea Parri <andrea.parri@amarulasolutions.com>
Diffstat (limited to 'tools/memory-model/linux-kernel.bell')
| -rw-r--r-- | tools/memory-model/linux-kernel.bell | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/tools/memory-model/linux-kernel.bell b/tools/memory-model/linux-kernel.bell index 796513362c05..353c8d68e030 100644 --- a/tools/memory-model/linux-kernel.bell +++ b/tools/memory-model/linux-kernel.bell @@ -34,7 +34,7 @@ enum Barriers = 'wmb (*smp_wmb*) || instructions F[Barriers] (* Compute matching pairs of nested Rcu-lock and Rcu-unlock *) -let matched = let rec +let rcu-rscs = let rec unmatched-locks = Rcu-lock \ domain(matched) and unmatched-unlocks = Rcu-unlock \ range(matched) and unmatched = unmatched-locks | unmatched-unlocks @@ -46,8 +46,5 @@ let matched = let rec in matched (* Validate nesting *) -flag ~empty Rcu-lock \ domain(matched) as unbalanced-rcu-locking -flag ~empty Rcu-unlock \ range(matched) as unbalanced-rcu-locking - -(* Outermost level of nesting only *) -let crit = matched \ (po^-1 ; matched ; po^-1) +flag ~empty Rcu-lock \ domain(rcu-rscs) as unbalanced-rcu-locking +flag ~empty Rcu-unlock \ range(rcu-rscs) as unbalanced-rcu-locking |