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authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-09-04 18:08:54 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-09-04 20:26:32 +0400
commitf6de7a39c181dfb8a2c534661a53c73afb3081cd (patch)
tree69a0d52d55f0a32e83bba6a0cd20df154a38f06a /Documentation/kernel-parameters.txt
parentef1820f9be27b6ad158f433ab38002ab8131db4d (diff)
downloadlinux-f6de7a39c181dfb8a2c534661a53c73afb3081cd.tar.xz
NFSv4: Document the recover_lost_locks kernel parameter
Rename the new 'recover_locks' kernel parameter to 'recover_lost_locks' and change the default to 'false'. Document why in Documentation/kernel-parameters.txt Move the 'recover_lost_locks' kernel parameter to fs/nfs/super.c to make it easy to backport to kernels prior to 3.6.x, which don't have a separate NFSv4 module. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 15356aca938c..30584b194984 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1847,6 +1847,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
will be sent.
The default is to send the implementation identification
information.
+
+ nfs.recover_lost_locks =
+ [NFSv4] Attempt to recover locks that were lost due
+ to a lease timeout on the server. Please note that
+ doing this risks data corruption, since there are
+ no guarantees that the file will remain unchanged
+ after the locks are lost.
+ If you want to enable the kernel legacy behaviour of
+ attempting to recover these locks, then set this
+ parameter to '1'.
+ The default parameter value of '0' causes the kernel
+ not to attempt recovery of lost locks.
nfsd.nfs4_disable_idmapping=
[NFSv4] When set to the default of '1', the NFSv4