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Michael Anthony Knyszek 6d1fffac63 runtime: set and clear only the relevant bits in allocToCache 
Currently allocToCache ham-handedly calls pageAlloc.allocRange on the
full size of the cache. This is fine as long as scavenged bits are never
set when alloc bits are set. This is true right now, but won't be true
as of the next CL.

This change makes allocToCache more carefully set the bits. Note that in
the allocToCache path, we were also calling update *twice*, erroneously.
The first time, with contig=true! Luckily today there's no correctness
error there because the page cache is small enough that the contig=true
logic doesn't matter, but this should at least improve allocation
performance a little bit.

Change-Id: I3ff9590ac86d251e4c5063cfd633570238b0cdbf
Reviewed-on: https://go-review.googlesource.com/c/go/+/356609
Trust: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
2021-11-04 20:01:22 +00:00
.github .github: update IRC server 2021-09-30 19:56:27 +00:00
api syscall: migrate new UDP send/recv API to internal/syscall/unix 2021-11-03 21:45:33 +00:00
doc doc/go1.18: remove some redundancy from netip docs 2021-11-02 22:20:40 +00:00
lib/time lib/time: fix RFC 6557 url 2021-08-15 02:18:46 +00:00
misc all: add support for c-archive and c-shared on linux/riscv64 2021-11-03 09:23:34 +00:00
src runtime: set and clear only the relevant bits in allocToCache 2021-11-04 20:01:22 +00:00
test cmd/compile: don't inline fn with no shape params, but passed a shape arg 2021-11-04 15:43:59 +00:00
.gitattributes
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Leonard Wang (individual CLA) 2021-11-02 06:25:39 +00:00
codereview.cfg
CONTRIBUTING.md
CONTRIBUTORS A+C: add Leonard Wang (individual CLA) 2021-11-02 06:25:39 +00:00
LICENSE
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README.md README.md: update contribute URL 2021-09-30 13:33:21 +00:00
SECURITY.md

README.md

The Go Programming Language

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