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| author | Michael Anthony Knyszek <mknyszek@google.com> | 2024-10-09 17:38:49 +0000 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2024-10-21 15:56:31 +0000 |
| commit | acd072a0784863dfbdf32da9d770753722270a26 (patch) | |
| tree | f769ca2eabcc226fec500d69748e9490685c2819 /src/database/sql | |
| parent | a1c4fb4361c3bc58760400b99f026fb2088610c6 (diff) | |
| download | go-acd072a0784863dfbdf32da9d770753722270a26.tar.xz | |
runtime: execute publicationBarrier in noscan case for delayed zeroing
This is a peace-of-mind change to make sure that delayed-zeroed memory
(in the large alloc case) is globally visible from the moment the
allocation is published back to the caller.
The way it's written right now is good enough for the garbage collector
(we already have a publication barrier for a nil span.largeType, so the
GC will ignore the noscan span) but this might matter for user code on
weak memory architectures.
Change-Id: I06ac9b95863074e5f09382629083b19bfa87fdb8
Reviewed-on: https://go-review.googlesource.com/c/go/+/619036
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/database/sql')
0 files changed, 0 insertions, 0 deletions