Commit 867c27c23a5c modified the NFS client so that it does IO_APPEND writes directly to the NFS server, bypassing the buffer cache. However, this could result in stale data in client pages when the file is mmap(2)'d. As such, the NFS client needs to call vm_object_is_active() to check if the file is mmap(2)'d and only do direct output if the file is not mmap(2)'d. This patch adds this check. Although a simple patch, I have given it a long MFC, since the related commit 867c27c23a5c made a significant semantics change and, as such, has a long MFC. MFC after: 3 months
FreeBSD Source:
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Source Roadmap:
Directory | Description |
---|---|
bin | System/user commands. |
cddl | Various commands and libraries under the Common Development and Distribution License. |
contrib | Packages contributed by 3rd parties. |
crypto | Cryptography stuff (see crypto/README). |
etc | Template files for /etc. |
gnu | Commands and libraries under the GNU General Public License (GPL) or Lesser General Public License (LGPL). Please see gnu/COPYING and gnu/COPYING.LIB for more information. |
include | System include files. |
kerberos5 | Kerberos5 (Heimdal) package. |
lib | System libraries. |
libexec | System daemons. |
release | Release building Makefile & associated tools. |
rescue | Build system for statically linked /rescue utilities. |
sbin | System commands. |
secure | Cryptographic libraries and commands. |
share | Shared resources. |
stand | Boot loader sources. |
sys | Kernel sources. |
sys/arch /conf |
Kernel configuration files. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries. |
tests | Regression tests which can be run by Kyua. See tests/README for additional information. |
tools | Utilities for regression testing and miscellaneous tasks. |
usr.bin | User commands. |
usr.sbin | System administration commands. |
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