| From | David Howells <> | Subject | Re: [PATCH 01/29] iov_iter: Switch to using a table of operations | Date | Sun, 22 Nov 2020 13:33:04 +0000 |
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Linus Torvalds <torvalds@linux-foundation.org> wrote:
> - I worry a bit about the indirect call overhead and spectre v2.
I don't know enough about how spectre v2 works to say if this would be a problem for the ops-table approach, but wouldn't it also affect the chain of conditional branches that we currently use, since it's branch-prediction based?
David
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