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authorBreno Leitao <leitao@debian.org>2025-07-14 05:06:27 -0700
committerJonathan Corbet <corbet@lwn.net>2025-07-17 13:47:27 -0600
commit2a1390c81305ba9d5311fe82adccd3a34603065a (patch)
tree0c2fbb39378445ea1ee3f2892ff987e026b96bb7
parentDocumentation: ioctl-number: Don't repeat macro names (diff)
downloadwireguard-linux-2a1390c81305ba9d5311fe82adccd3a34603065a.tar.xz
wireguard-linux-2a1390c81305ba9d5311fe82adccd3a34603065a.zip
docs: kernel: Clarify printk_ratelimit_burst reset behavior
Add clarification that the printk_ratelimit_burst window resets after printk_ratelimit seconds have elapsed, allowing another burst of messages to be sent. This helps users understand that the rate limiting is not permanent but operates in periodic windows. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20250714-docs_ratelimit-v1-1-51a6d9071f1a@debian.org
-rw-r--r--Documentation/admin-guide/sysctl/kernel.rst3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index f1b2ab219a08..269f9a9a9e1a 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -1111,7 +1111,8 @@ printk_ratelimit_burst
While long term we enforce one message per `printk_ratelimit`_
seconds, we do allow a burst of messages to pass through.
``printk_ratelimit_burst`` specifies the number of messages we can
-send before ratelimiting kicks in.
+send before ratelimiting kicks in. After `printk_ratelimit`_ seconds
+have elapsed, another burst of messages may be sent.
The default value is 10 messages.