diff options
| author |   Peter Zijlstra <peterz@infradead.org> | 2020-12-09 16:06:21 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-01-14 11:20:17 +0100 |
| commit | dfd5e3f5fe27bda91d5cc028c86ffbb7a0614489 (patch) | |
| tree | 6c35b4446fad60c64be61e7808ca1d710e6022da /include/linux/lockdep_types.h | |
| parent | locking/selftests: More granular debug_locks_verbose (diff) | |
| download | linux-dev-dfd5e3f5fe27bda91d5cc028c86ffbb7a0614489.tar.xz linux-dev-dfd5e3f5fe27bda91d5cc028c86ffbb7a0614489.zip | |
locking/lockdep: Mark local_lock_t
The local_lock_t's are special, because they cannot form IRQ
inversions, make sure we can tell them apart from the rest of the
locks.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Diffstat (limited to 'include/linux/lockdep_types.h')
| -rw-r--r-- | include/linux/lockdep_types.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/include/linux/lockdep_types.h b/include/linux/lockdep_types.h index 9a1fd49df17f..2ec9ff5a7fff 100644 --- a/include/linux/lockdep_types.h +++ b/include/linux/lockdep_types.h @@ -30,6 +30,12 @@ enum lockdep_wait_type { LD_WAIT_MAX, /* must be last */ }; +enum lockdep_lock_type { + LD_LOCK_NORMAL = 0, /* normal, catch all */ + LD_LOCK_PERCPU, /* percpu */ + LD_LOCK_MAX, +}; + #ifdef CONFIG_LOCKDEP /* @@ -119,8 +125,10 @@ struct lock_class { int name_version; const char *name; - short wait_type_inner; - short wait_type_outer; + u8 wait_type_inner; + u8 wait_type_outer; + u8 lock_type; + /* u8 hole; */ #ifdef CONFIG_LOCK_STAT unsigned long contention_point[LOCKSTAT_POINTS]; @@ -169,8 +177,10 @@ struct lockdep_map { struct lock_class_key *key; struct lock_class *class_cache[NR_LOCKDEP_CACHING_CLASSES]; const char *name; - short wait_type_outer; /* can be taken in this context */ - short wait_type_inner; /* presents this context */ + u8 wait_type_outer; /* can be taken in this context */ + u8 wait_type_inner; /* presents this context */ + u8 lock_type; + /* u8 hole; */ #ifdef CONFIG_LOCK_STAT int cpu; unsigned long ip; |