Strenghten synchronization in Arc::is_unique
#52031
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
r? @sfackler (rust_highfive has picked a reviewer for you, use r? to override) |
rust-highfive
added
the
S-waiting-on-review
Previously, `is_unique` would not synchronize at all with a `drop` that returned early because it was not the last reference, leading to a data race. Fixes rust-lang#51780
|
@bors r+ |
|
📌 Commit f96c246 has been approved by |
bors
added
S-waiting-on-bors
kennytm
added a commit
to kennytm/rust
that referenced
this pull request
Jul 6, 2018
Strenghten synchronization in `Arc::is_unique` Previously, `is_unique` would not synchronize at all with a `drop` that returned early because it was not the last reference, leading to a data race. Fixes rust-lang#51780 Unfortunately I have no idea how to add a test for this. Cc @jhjourdan
bors
added a commit
that referenced
this pull request
Jul 6, 2018
Rollup of 14 pull requests Successful merges: - #51619 (rust: add initial changes to support powerpc64le musl) - #51793 (Fix variant background color on hover in search results) - #52005 (Update LLVM to bring in a wasm codegen fix) - #52016 (Deduplicate error reports for statics) - #52019 ([cross-lang-lto] Allow the linker to choose the LTO-plugin (which is useful when using LLD)) - #52030 (Any docs preposition change) - #52031 (Strenghten synchronization in `Arc::is_unique`) - #52033 ([Gardening] Update outdated comments: ByVal -> Scalar) - #52052 (Make verbose --version show if parallel queries are supported.) - #52055 (Include VS 2017 in error message.) - #52063 (Add a link to the rustc docs) - #52073 (Add a punch card to weird expressions test) - #52080 (Improve dependency deduplication diagnostics) - #51953 (enable Atomic*.{load,store} for ARMv6-M / MSP430) Failed merges:
bors
added a commit
that referenced
this pull request
Jul 6, 2018
Rollup of 14 pull requests Successful merges: - #51619 (rust: add initial changes to support powerpc64le musl) - #51793 (Fix variant background color on hover in search results) - #52005 (Update LLVM to bring in a wasm codegen fix) - #52016 (Deduplicate error reports for statics) - #52019 ([cross-lang-lto] Allow the linker to choose the LTO-plugin (which is useful when using LLD)) - #52030 (Any docs preposition change) - #52031 (Strenghten synchronization in `Arc::is_unique`) - #52033 ([Gardening] Update outdated comments: ByVal -> Scalar) - #52055 (Include VS 2017 in error message.) - #52063 (Add a link to the rustc docs) - #52073 (Add a punch card to weird expressions test) - #52080 (Improve dependency deduplication diagnostics) - #52093 (rustc: Update tracking issue for wasm_import_module) - #52096 (Fix typo in cell.rs) Failed merges:
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Previously,
is_uniquewould not synchronize at all with adropthat returnedearly because it was not the last reference, leading to a data race.
Fixes #51780
Unfortunately I have no idea how to add a test for this.
Cc @jhjourdan