* [Ocfs2-devel] [PATCH v3 2/5] powerpc: module_[32|64].c: replace swap function with built-in one
[not found] <994931554238042@iva8-b333b7f98ab0.qloud-c.yandex.net>
@ 2020-06-09 5:58 ` Michael Ellerman
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From: Michael Ellerman @ 2020-06-09 5:58 UTC (permalink / raw)
To: Andrey Abramov, vgupta, benh, paulus, tglx, mingo, bp, hpa, x86,
mark, jlbec, richard, dedekind1, adrian.hunter, gregkh,
naveen.n.rao, jpoimboe, Dave Chinner, darrick.wong,
ard.biesheuvel, George Spelvin, linux-snps-arc,
Linux Kernel Mailing List, linuxppc-dev, ocfs2-devel, linux-mtd,
sfr
Cc: malat, yamada.masahiro, npiggin
On Tue, 2019-04-02 at 20:47:22 UTC, Andrey Abramov wrote:
> Replace relaswap with built-in one, because relaswap
> does a simple byte to byte swap.
>
> Since Spectre mitigations have made indirect function calls more
> expensive, and the default simple byte copies swap is implemented
> without them, an "optimized" custom swap function is now
> a waste of time as well as code.
>
> Signed-off-by: Andrey Abramov <st5pub@yandex.ru>
> Reviewed by: George Spelvin <lkml@sdf.org>
> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Applied to powerpc next, thanks.
https://urldefense.com/v3/__https://git.kernel.org/powerpc/c/bac7ca7b985b72873bd4ac2553b13b5af5b1f08a__;!!GqivPVa7Brio!LocsSQ-zlIql0GWmmMG2Ry4W0wSo1gzfh36_pvi7Zc-ccRgumoV9gaJm3n89_0RPl8Z-mQ$
cheers
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2020-06-09 5:58 ` [Ocfs2-devel] [PATCH v3 2/5] powerpc: module_[32|64].c: replace swap function with built-in one Michael Ellerman
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