netdev - [RFC v1 PATCH 0/7] bpf: Make RT friendly.

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Message-Id: <20191207.160357.828344895192682546.davem@davemloft.net>
Date:   Sat, 07 Dec 2019 16:03:57 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     bpf@...r.kernel.org, netdev@...r.kernel.org
CC:     ast@...nel.org, daniel@...earbox.net, tglx@...utronix.de
Subject: [RFC v1 PATCH 0/7] bpf: Make RT friendly.

The goal of this patch set is to make the BPF code friendly in RT
configurations.

The first step is eliminating preemption disable/enable and replacing
it with local lock usage when full RT is enabled.

Likewise we also need to elide usage of up_read_non_owner() in the
stackmap code when full RT is turned on.

Signed-off-by: David S. Miller <davem@...emloft.net>