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authorOleg Drokin <green@linuxhacker.ru>2015-05-21 15:32:00 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-05-31 10:50:19 +0900
commit87d32094efc208f31e4e3b226d25e58058352208 (patch)
tree7e0ad527c4ffd677ab0eed2e63592c6f31a43860 /drivers/staging/lustre/sysfs-fs-lustre
parent6784096b4818636ad512575c701e164e8e6a09d3 (diff)
staging/lustre/ldlm: move namespaces/early_lock_cancel to sysfs
Move ldlm display of early_lock_cancel from procfs to sysfs Signed-off-by: Oleg Drokin <green@linuxhacker.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre/sysfs-fs-lustre')
-rw-r--r--drivers/staging/lustre/sysfs-fs-lustre13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/staging/lustre/sysfs-fs-lustre b/drivers/staging/lustre/sysfs-fs-lustre
index 0d379d0a6bb7..e54e4857dd53 100644
--- a/drivers/staging/lustre/sysfs-fs-lustre
+++ b/drivers/staging/lustre/sysfs-fs-lustre
@@ -222,3 +222,16 @@ Description:
namespace.
0 - LRU size is unlimited, controlled by server resources
positive number - number of locks to allow in lock LRU list
+
+What: /sys/fs/lustre/ldlm/namespaces/<name>/early_lock_cancel
+Date: May 2015
+Contact: "Oleg Drokin" <oleg.drokin@intel.com>
+Description:
+ Controls "early lock cancellation" feature on this namespace
+ if supported by the server.
+ When enabled, tries to preemtively cancel locks that would be
+ cancelled by verious operations and bundle the cancellation
+ requests in the same RPC as the main operation, which results
+ in significant speedups due to reduced lock-pingpong RPCs.
+ 0 - disabled
+ 1 - enabled (default)