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IsDCacheSizeOK currently can incorrectly flag a dcache as corrupted, since the size of a dcache may not match the size of the underlying file in a couple of RW conditions: - If someone is writing to a file beyond EOF, the intermediate 'sparse' area may be populated by 0-length dcaches until the data is written to the fileserver. - Directories may be modified locally instead of being fetched from the fileserver, which can sometimes result in a directory blob of differing sizes. To avoid false positives detecting dcache corruption, just skip the IsDCacheSizeOK check for directories, and any file with pending writes (CDirty). Also add some extra information to the logging messages when this "corruption" is detected, so false positives may be more easily detected in the future. Reviewed-on: https://gerrit.openafs.org/13747 Tested-by: BuildBot <buildbot@rampaginggeek.com> Reviewed-by: Benjamin Kaduk <kaduk@mit.edu> (cherry picked from commit e6b97b337bc97fdb1c8e4f1a0572c62dfc82d979) Change-Id: I177020c37ba92d8730fe4c68ca610f1b39c3d69b Reviewed-on: https://gerrit.openafs.org/15533 Tested-by: BuildBot <buildbot@rampaginggeek.com> Reviewed-by: Andrew Deason <adeason@sinenomine.net> Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
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.