From: Oleg Drokin <gr...@linuxhacker.ru>
/proc/fs/lustre/ldlm/cancel_unused_locks_before_replay is
moved to /sys/fs/lustre/ldlm/cancel_unused_locks_before_replay
Signed-off-by: Oleg Drokin <gr...@linuxhacker.ru>
---
drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c | 29 +++++++++++++++++++++-
drivers/staging/lustre/lustre/ldlm/ldlm_resource.c | 4 ---
drivers/staging/lustre/sysfs-fs-lustre | 10 ++++++++
3 files changed, 38 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
index 46f1790..151d60d 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
@@ -1006,8 +1006,35 @@ void ldlm_destroy_export(struct obd_export *exp)
}
EXPORT_SYMBOL(ldlm_destroy_export);
+extern unsigned int ldlm_cancel_unused_locks_before_replay;
+
+static ssize_t cancel_unused_locks_before_replay_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%d\n", ldlm_cancel_unused_locks_before_replay);
+}
+static ssize_t cancel_unused_locks_before_replay_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer,
+ size_t count)
+{
+ int rc;
+ unsigned long val;
+
+ rc = kstrtoul(buffer, 10, &val);
+ if (rc)
+ return rc;
+
+ ldlm_cancel_unused_locks_before_replay = val;
+
+ return count;
+}
+LUSTRE_RW_ATTR(cancel_unused_locks_before_replay);
+
/* These are for root of /sys/fs/lustre/ldlm */
-struct attribute *ldlm_attrs[] = {
+static struct attribute *ldlm_attrs[] = {
+ &lustre_attr_cancel_unused_locks_before_replay.attr,
NULL,
};
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index 70d9567..ad3e0b3 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -65,8 +65,6 @@ struct proc_dir_entry *ldlm_type_proc_dir = NULL;
static struct proc_dir_entry *ldlm_ns_proc_dir = NULL;
struct proc_dir_entry *ldlm_svc_proc_dir = NULL;
-extern unsigned int ldlm_cancel_unused_locks_before_replay;
-
/* during debug dump certain amount of granted locks for one resource to avoid
* DDOS. */
unsigned int ldlm_dump_granted_max = 256;
@@ -91,8 +89,6 @@ int ldlm_proc_setup(void)
{ "dump_namespaces", &ldlm_dump_ns_fops, NULL, 0222 },
{ "dump_granted_max", &ldlm_rw_uint_fops,
&ldlm_dump_granted_max },
- { "cancel_unused_locks_before_replay", &ldlm_rw_uint_fops,
- &ldlm_cancel_unused_locks_before_replay },
{ NULL } };
LASSERT(ldlm_ns_proc_dir == NULL);
diff --git a/drivers/staging/lustre/sysfs-fs-lustre
b/drivers/staging/lustre/sysfs-fs-lustre
index ec4ae47..efe3440 100644
--- a/drivers/staging/lustre/sysfs-fs-lustre
+++ b/drivers/staging/lustre/sysfs-fs-lustre
@@ -190,3 +190,13 @@ Contact: "Oleg Drokin" <oleg.dro...@intel.com>
Description:
Controls extended attributes client-side cache.
1 to enable, 0 to disable.
+
+What: /sys/fs/lustre/ldlm/cancel_unused_locks_before_replay
+Date: May 2015
+Contact: "Oleg Drokin" <oleg.dro...@intel.com>
+Description:
+ Controls if client should replay unused locks during recovery
+ If a client tends to have a lot of unused locks in LRU,
+ recovery times might become prolonged.
+ 1 - just locally cancel unused locks (default)
+ 0 - replay unused locks.
--
2.1.0
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