Augustin Cavalier
74c037e938
Previously, we'd wind up adding pages from the source to the consumer that were potentially or actually outside the consumer's bounds. Now we check the consumer's size and ignore any pages that we don't want or need; they'll just be freed along with the source cache. While at it, drop VMAnonymousCache::_MergePagesSmallerSource; it was the same as the base class's implementation of Merge preceding this commit; and add a comment to _MergePagesSmallerConsumer noting that some of the pages may be busy (indeed, I manage to trigger an assert related to copy-on-write in here at least once.) I discovered this problem because the page commitment size ASSERT()s triggered inside Resize() and Rebase(); but the out-of-range pages already existed in the cache before those functions were called. So, I've also added an ASSERT to MovePage() that would have caught this problem more directly.
Haiku
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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.
Goals
- Sensible defaults with minimal configuration required.
- Clean, clear, concise code.
- Unified desktop environment.
Trying Haiku
Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.
Compiling Haiku
See ReadMe.Compiling.
Contributing
Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!
Contributing code
If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.
If you're having trouble finding something in the source tree, you can use one of our web-based source code browsers:
- https://xref.landonf.org/ (OpenGrok, provided by Landon Fuller)
- https://git.haiku-os.org/ (git, provided by Haiku, Inc.)
Contributing documentation
The main piece of documentation that still needs work are the API docs (found
in the tree at docs/user). Just find an undocumented class, write
documentation for it, and submit a patch.
Contributing translations
See wiki:i18n.
Contributing software ports
See HaikuPorts.
Contributing to our infrastructure
See Infrastructure.