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Currently, the FBSD afs_vop_putpages() will call afs_write(), which can then go through afs_DoPartialWrite -> afs_StoreAllSegments -> osi_VM_StoreAllSegments -> vm_object_page_clean, which will then try to go through afs_vop_putpages() again. In this call stack, we're only calling afs_StoreAllSegments to reduce our dirty cache chunks (afs_StoreAllSegments does nothing if we don't have that many dirty cache chunks); we don't need to reduce dirty pages, so calling osi_VM_StoreAllSegments is not needed. To avoid calling osi_VM_StoreAllSegments in this situation, add a new flag AFS_NOVMSYNC, which skips the osi_VM_StoreAllSegments call and just flushes the dirty cache chunks. Use this flag in afs_DoPartialWrite on FBSD, and slightly refactor the ifdefs to reduce some code duplication. Change-Id: Id6bf9a7f4ac6d5f09b0249ca6ed11674d556e909 Reviewed-on: https://gerrit.openafs.org/14163 Reviewed-by: Benjamin Kaduk <kaduk@mit.edu> Tested-by: BuildBot <buildbot@rampaginggeek.com>
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.