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authorBryan Schumaker <bjschuma@netapp.com>2011-11-01 21:35:21 +0400
committerJ. Bruce Fields <bfields@redhat.com>2011-11-08 06:10:47 +0400
commit65178db42a02c7984f711614546e97e9952d8e01 (patch)
treebab2974af726bb7be58e9cc7045cdf7c63b041b7 /fs/nfsd/Kconfig
parent64a284d07c7d84299a90826950079a8ef11e8204 (diff)
downloadlinux-65178db42a02c7984f711614546e97e9952d8e01.tar.xz
NFSD: Added fault injection
Fault injection on the NFS server makes it easier to test the client's state manager and recovery threads. Simulating errors on the server is easier than finding the right conditions that cause them naturally. This patch uses debugfs to add a simple framework for fault injection to the server. This framework is a config option, and can be enabled through CONFIG_NFSD_FAULT_INJECTION. Assuming you have debugfs mounted to /sys/debug, a set of files will be created in /sys/debug/nfsd/. Writing to any of these files will cause the corresponding action and write a log entry to dmesg. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/Kconfig')
-rw-r--r--fs/nfsd/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index 10e6366608f2..8df1ea4a6ff9 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -80,3 +80,13 @@ config NFSD_V4
available from http://linux-nfs.org/.
If unsure, say N.
+
+config NFSD_FAULT_INJECTION
+ bool "NFS server manual fault injection"
+ depends on NFSD_V4 && DEBUG_KERNEL
+ help
+ This option enables support for manually injecting faults
+ into the NFS server. This is intended to be used for
+ testing error recovery on the NFS client.
+
+ If unsure, say N.