neorados: avoid using std::aligned_storage_t#64037
Merged
Conversation
std::aligned_storage_t was deprecated in C++23, to be prepared for it, let's use alignas for the same behavior. because we do not always pass a power-of-2 number to `std::aligned_storage_t`, while `alignas()` requires an alignment of power of 2. so we use `std::bit_ceil()` to calculate the minimum alignment greater or equal to the given number. Signed-off-by: Kefu Chai <tchaikov@gmail.com>
Contributor
Author
|
@adamemerson hi Adam, could you please help review this change? |
Contributor
Author
|
jenkins test api |
adamemerson
approved these changes
Jun 19, 2025
Contributor
adamemerson
left a comment
There was a problem hiding this comment.
Thank you very much!
Contributor
|
https://tracker.ceph.com/issues/73750 tracks a very strange crash in neorados tests which i managed to bisect back to this commit :( |
Contributor
further rca in https://tracker.ceph.com/issues/73750#note-15, and a candidate fix in #66396 |
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
std::aligned_storage_t was deprecated in C++23, to be prepared for it, let's use alignas for the same behavior. because we do not always pass a power-of-2 number to
std::aligned_storage_t, whilealignas()requires an alignment of power of 2. so we usestd::bit_ceil()to calculate the minimum alignment greater or equal to the given number.Contribution Guidelines
To sign and title your commits, please refer to Submitting Patches to Ceph.
If you are submitting a fix for a stable branch (e.g. "quincy"), please refer to Submitting Patches to Ceph - Backports for the proper workflow.
When filling out the below checklist, you may click boxes directly in the GitHub web UI. When entering or editing the entire PR message in the GitHub web UI editor, you may also select a checklist item by adding an
xbetween the brackets:[x]. Spaces and capitalization matter when checking off items this way.Checklist
Show available Jenkins commands
jenkins test classic perfJenkins Job | Jenkins Job Definitionjenkins test crimson perfJenkins Job | Jenkins Job Definitionjenkins test signedJenkins Job | Jenkins Job Definitionjenkins test make checkJenkins Job | Jenkins Job Definitionjenkins test make check arm64Jenkins Job | Jenkins Job Definitionjenkins test submodulesJenkins Job | Jenkins Job Definitionjenkins test dashboardJenkins Job | Jenkins Job Definitionjenkins test dashboard cephadmJenkins Job | Jenkins Job Definitionjenkins test apiJenkins Job | Jenkins Job Definitionjenkins test docsReadTheDocs | Github Workflow Definitionjenkins test ceph-volume allJenkins Jobs | Jenkins Jobs Definitionjenkins test windowsJenkins Job | Jenkins Job Definitionjenkins test rook e2eJenkins Job | Jenkins Job Definition