diff mbox series

[08/18] rcu/tree: Clarify emergency path comment better

Message ID 20200330023248.164994-9-joel@joelfernandes.org (mailing list archive)
State New, archived
Headers show
Series kfree_rcu() improvements for -rcu dev | expand

Commit Message

Joel Fernandes March 30, 2020, 2:32 a.m. UTC 
Clarify emergency path comment better in kfree_rcu().

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 kernel/rcu/tree.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
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Patch

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;