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0182dbd13b
The bosserver global bozo_isrestricted is often accessed without any locks. It's a simple boolean that doesn't need coordination with anything else, but on pthreads, accessing this from different threads is technically undefined behavior. To avoid this, convert bozo_isrestricted to be an rx_atomic_t, which can be accessed safely from different threads. Access this global through the new functions bozo_IsRestricted() and bozo_SetRestricted(), to make it easier to change how we access this global in the future, if we need to. Change the name of the global to bozo_restricted and declare it 'static', to try to make sure we haven't left behind any old users. Do the same thing for the bozo_restdisable global, too (renamed to bozo_restricted_disabled), except don't add accessor functions, since this is only used in a small number of places. While we could instead make these globals be protected by a lock (such as BNODE_LOCK()), using atomics is a little simpler, since we don't need to worry about whether we have obtained the relevant lock. Change-Id: If8d8dcc2103b084bebb152440ddd52b85cfa26b0 Reviewed-on: https://gerrit.openafs.org/15779 Reviewed-by: Michael Meffie <mmeffie@sinenomine.net> Reviewed-by: Benjamin Kaduk <kaduk@mit.edu> Tested-by: BuildBot <buildbot@rampaginggeek.com> |
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| doc | ||
| src | ||
| tests | ||
| .gitignore | ||
| .gitreview | ||
| .mailmap | ||
| .splintrc | ||
| acinclude.m4 | ||
| CODING | ||
| configure-libafs.ac | ||
| configure.ac | ||
| CONTRIBUTING | ||
| INSTALL | ||
| libafsdep | ||
| LICENSE | ||
| Makefile-libafs.in | ||
| Makefile.in | ||
| NEWS | ||
| NTMakefile | ||
| README | ||
| README-WINDOWS | ||
| regen.sh | ||
AFS is a distributed file system that enables users to share and access all of the files stored in a network of computers as easily as they access the files stored on their local machines. The file system is called distributed for this exact reason: files can reside on many different machines, but are available to users on every machine. OpenAFS 1.0 was originally released by IBM under the terms of the IBM Public License 1.0 (IPL10). For details on IPL10 see the LICENSE file in this directory. The current OpenAFS distribution is licensed under a combination of the IPL10 and many other licenses as granted by the relevant copyright holders. The LICENSE file in this directory contains more details, thought it is not a comprehensive statement. See INSTALL for information about building and installing OpenAFS on various platforms. See CODING for developer information and guidelines. See NEWS for recent changes to OpenAFS.