Thread (3 messages) flat view 3 messages, 2 authors, 2021-10-28

Re: [PATCH v2] net: sch: eliminate unnecessary RCU waits in mini_qdisc_pair_swap()

From: patchwork-bot+netdevbpf@kernel.org
Date: 2021-10-28 01:10:15
Also in: lkml

Hello:

This series was applied to netdev/net-next.git (master)
by Jakub Kicinski [off-list ref]:

On Tue, 26 Oct 2021 08:06:59 -0500 you wrote:
From: Seth Forshee <redacted>

Currently rcu_barrier() is used to ensure that no readers of the
inactive mini_Qdisc buffer remain before it is reused. This waits for
any pending RCU callbacks to complete, when all that is actually
required is to wait for one RCU grace period to elapse after the buffer
was made inactive. This means that using rcu_barrier() may result in
unnecessary waits.

[...]
Here is the summary with links:
  - [v2] net: sch: eliminate unnecessary RCU waits in mini_qdisc_pair_swap()
    https://git.kernel.org/netdev/net-next/c/267463823adb
  - [2/1] net: sch: simplify condtion for selecting mini_Qdisc_pair buffer
    https://git.kernel.org/netdev/net-next/c/85c0c3eb9a66

You are awesome, thank you!
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