staging/lustre/ldlm: move namespaces/resource_count to sysfs

Move ldlm display of resource_count from procfs to sysfs

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index ad3e0b3..f88b189 100644 (file)
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -150,9 +150,11 @@ void ldlm_proc_cleanup(void)
        ldlm_ns_proc_dir = NULL;
 }
 
-static int lprocfs_ns_resources_seq_show(struct seq_file *m, void *v)
+static ssize_t resource_count_show(struct kobject *kobj, struct attribute *attr,
+                                  char *buf)
 {
-       struct ldlm_namespace *ns  = m->private;
+       struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
+                                                ns_kobj);
        __u64             res = 0;
        struct cfs_hash_bd        bd;
        int                 i;
@@ -160,9 +162,9 @@ static int lprocfs_ns_resources_seq_show(struct seq_file *m, void *v)
        /* result is not strictly consistent */
        cfs_hash_for_each_bucket(ns->ns_rs_hash, &bd, i)
                res += cfs_hash_bd_count_get(&bd);
-       return lprocfs_rd_u64(m, &res);
+       return sprintf(buf, "%lld\n", res);
 }
-LPROC_SEQ_FOPS_RO(lprocfs_ns_resources);
+LUSTRE_RO_ATTR(resource_count);
 
 static int lprocfs_ns_locks_seq_show(struct seq_file *m, void *v)
 {
@@ -305,6 +307,7 @@ LPROC_SEQ_FOPS(lprocfs_elc);
 
 /* These are for namespaces in /sys/fs/lustre/ldlm/namespaces/ */
 static struct attribute *ldlm_ns_attrs[] = {
+       &lustre_attr_resource_count.attr,
        NULL,
 };
 
@@ -390,7 +393,6 @@ int ldlm_namespace_proc_register(struct ldlm_namespace *ns)
        memset(lock_vars, 0, sizeof(lock_vars));
        lock_vars[0].name = lock_name;
 
-       LDLM_NS_ADD_VAR("resource_count", ns, &lprocfs_ns_resources_fops);
        LDLM_NS_ADD_VAR("lock_count", ns, &lprocfs_ns_locks_fops);
 
        if (ns_is_client(ns)) {

diff --git a/drivers/staging/lustre/sysfs-fs-lustre b/drivers/staging/lustre/sysfs-fs-lustre
index efe3440..0925869 100644 (file)
--- a/drivers/staging/lustre/sysfs-fs-lustre
+++ b/drivers/staging/lustre/sysfs-fs-lustre
@@ -200,3 +200,10 @@ Description:
                recovery times might become prolonged.
                1 - just locally cancel unused locks (default)
                0 - replay unused locks.
+
+What:          /sys/fs/lustre/ldlm/namespaces/<name>/resource_count
+Date:          May 2015
+Contact:       "Oleg Drokin" <oleg.drokin@intel.com>
+Description:
+               Displays number of lock resources (objects on which individual
+               locks are taken) currently allocated in this namespace.