diff options
| -rw-r--r-- | lib/fault-inject.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/lib/fault-inject.c b/lib/fault-inject.c index d7819cacf890..6cff320c4eb4 100644 --- a/lib/fault-inject.c +++ b/lib/fault-inject.c @@ -102,10 +102,16 @@ static inline bool fail_stacktrace(struct fault_attr *attr) bool should_fail_ex(struct fault_attr *attr, ssize_t size, int flags) { + bool stack_checked = false; + if (in_task()) { unsigned int fail_nth = READ_ONCE(current->fail_nth); if (fail_nth) { + if (!fail_stacktrace(attr)) + return false; + + stack_checked = true; fail_nth--; WRITE_ONCE(current->fail_nth, fail_nth); if (!fail_nth) @@ -125,6 +131,9 @@ bool should_fail_ex(struct fault_attr *attr, ssize_t size, int flags) if (atomic_read(&attr->times) == 0) return false; + if (!stack_checked && !fail_stacktrace(attr)) + return false; + if (atomic_read(&attr->space) > size) { atomic_sub(size, &attr->space); return false; @@ -139,9 +148,6 @@ bool should_fail_ex(struct fault_attr *attr, ssize_t size, int flags) if (attr->probability <= get_random_u32_below(100)) return false; - if (!fail_stacktrace(attr)) - return false; - fail: if (!(flags & FAULT_NOWARN)) fail_dump(attr); |