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authorBart Van Assche <bvanassche@acm.org>2019-02-15 02:00:41 +0300
committerIngo Molnar <mingo@kernel.org>2019-02-28 09:55:40 +0300
commit86cffb80a525f7b8f969c8c79669d383e02f17d1 (patch)
treec47390da9717a43d6e1aa4656d600fd1ef4d638b /include/linux/lockdep.h
parent09329d1c2024522308ca4de977fc6bba753bab1a (diff)
downloadlinux-86cffb80a525f7b8f969c8c79669d383e02f17d1.tar.xz
locking/lockdep: Make zap_class() remove all matching lock order entries
Make sure that all lock order entries that refer to a class are removed from the list_entries[] array when a kernel module is unloaded. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Waiman Long <longman@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Cc: johannes.berg@intel.com Cc: tj@kernel.org Link: https://lkml.kernel.org/r/20190214230058.196511-7-bvanassche@acm.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/lockdep.h')
-rw-r--r--include/linux/lockdep.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 0c38bade84b7..b5e6bfe0ae4a 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -178,6 +178,7 @@ static inline void lockdep_copy_map(struct lockdep_map *to,
struct lock_list {
struct list_head entry;
struct lock_class *class;
+ struct lock_class *links_to;
struct stack_trace trace;
int distance;