From: David S. Miller <davem@davemloft.net>
Date: Wed, 7 Jun 2023 09:09:05 +0000 (+0100)
Subject: Merge branch 'rfs-lockless-annotate'
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e3144ff52f7d2c884eef352cec9b9ff9acd2eb2f;p=linux.git

Merge branch 'rfs-lockless-annotate'

Eric Dumazet says:

====================
rfs: annotate lockless accesses

rfs runs without locks held, so we should annotate
read and writes to shared variables.

It should prevent compilers forcing writes
in the following situation:

  if (var != val)
     var = val;

A compiler could indeed simply avoid the conditional:

    var = val;

This matters if var is shared between many cpus.

v2: aligns one closing bracket (Simon)
    adds Fixes: tags (Jakub)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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e3144ff52f7d2c884eef352cec9b9ff9acd2eb2f