[Intel-gfx] [PATCH] list: Prevent compiler reloads inside 'safe' list iteration
David Laight
David.Laight at ACULAB.COM
Tue Mar 10 15:05:57 UTC 2020
From: Marco Elver
> Sent: 10 March 2020 14:10
...
> FWIW, for writes we're already being quite generous, in that plain
> aligned writes up to word-size are assumed to be "atomic" with the
> default (conservative) config, i.e. marking such writes is optional.
> Although, that's a generous assumption that is not always guaranteed
> to hold (https://lore.kernel.org/lkml/20190821103200.kpufwtviqhpbuv2n@willie-the-truck/).
Remind me to start writing everything in assembler.
That and to mark all structure members 'volatile'.
David
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