| From | David Laight <> | Subject | RE: [RFC PATCH 0/8] Rework READ_ONCE() to improve codegen | Date | Mon, 13 Jan 2020 11:20:50 +0000 |
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From: Will Deacon > Sent: 10 January 2020 16:56 ... > The rough summary of the series is: > > * Drop the GCC 4.8 workarounds, so that READ_ONCE() is a > straightforward dereference of a cast-to-volatile pointer.
What is the effect of using the changed code on older compilers (esp. x86-64)? Requiring gcc > 4.8 is a significant bump.
David
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