Clarify emergency path comment better in kfree_rcu().
Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
---
kernel/rcu/tree.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 95d1f5e20d5ec..8dfa4b32e4d00 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2924,9 +2924,10 @@ static void kfree_rcu_work(struct work_struct *work)
}
/*
- * vmalloc() pointers end up here also emergency case. It can
- * happen under low memory condition when an allocation gets
- * failed, so the "bulk" path can not be temporary maintained.
+ * We can end up here either with 1) vmalloc() pointers or 2) were low
+ * on memory and could not allocate a bulk array. It can happen under
+ * low memory condition when an allocation gets failed, so the "bulk"
+ * path can not be temporarly used.
*/
for (; head; head = next) {
unsigned long offset = (unsigned long)head->func;
--
2.26.0.rc2.310.g2932bb562d-goog
