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When reading a file with a file length of >= 4G, the cache manager is failing the read with an EIO error. In afs_GetDCache, the call to IsDCacheSizeOK is passed a parameter that contains only the lower 32bits of the file length (which requires a 64 bit value). This results in the EIO error if the length is over 2^32 -1. The AFSFetchStatus.Length member needs to be combined with the AFSFetchStatus.Length_hi to obtain the full 64bit file length. Fix the calls to IsDCacheSizeOK to use the full 64bit file length. Commit "afs: Check dcache size when checking DVs 7c60a0fba11dd24494a5f383df8bea5fdbabbdd7" - gerrit 13436 - added the IsDCacheSizeOK function and the associated calls. As a note, the AFSFetchStatus.DataVersion is the lower 32 bits of the full 64bit version number, AFSFetchStatus.dataVersionHigh contains the high order 32bits. The function IsDCacheSizeOK is passed just the 32bit component, the only use of the parameter is in an error message. Reviewed-on: https://gerrit.openafs.org/14002 Reviewed-by: Benjamin Kaduk <kaduk@mit.edu> Tested-by: BuildBot <buildbot@rampaginggeek.com> (cherry picked from commit bebae936b4ef3bf47624c0ff0baae5521bad804e) Change-Id: I68f3ee04af25c7e99e0795804226ba5075af0ea8 Reviewed-on: https://gerrit.openafs.org/15535 Reviewed-by: Andrew Deason <adeason@sinenomine.net> Tested-by: BuildBot <buildbot@rampaginggeek.com> 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.