diff options
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/lockdep.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 1114dc42c27f..257931e2fbbe 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -4623,6 +4623,10 @@ asmlinkage __visible void lockdep_sys_exit(void) /* * The lock history for each syscall should be independent. So wipe the * slate clean on return to userspace. + * + * crossrelease_hist_end() works well here even when getting here + * without starting (i.e. just after forking), because it rolls back + * the index to point to the last entry, which is already invalid. */ crossrelease_hist_end(XHLOCK_PROC); crossrelease_hist_start(XHLOCK_PROC); |