From: Oleg Drokin Date: Thu, 21 May 2015 19:31:56 +0000 (-0400) Subject: staging/lustre/ldlm: move cancel_unused_locks_before_replay to sysfs X-Git-Tag: v4.14-rc1~5163^2~501 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0f53c823f9664683ce1aadab2d6a4cee950d6f62;p=platform%2Fkernel%2Flinux-rpi.git staging/lustre/ldlm: move cancel_unused_locks_before_replay to sysfs /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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c index 46f1790..151d60d4 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 70d95673..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" 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" +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.