[DLM] PATCH 3/3 dlm: show recover state

Expose the current recovery state in sysfs to help in debugging.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index d2ff505d51cd..9ed4b70348fb 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -21,6 +21,7 @@
 #include "config.h"
 #include "memory.h"
 #include "lock.h"
+#include "recover.h"
 
 #ifdef CONFIG_DLM_DEBUG
 int dlm_create_debug_file(struct dlm_ls *ls);
@@ -74,6 +75,12 @@ static ssize_t dlm_id_store(struct dlm_ls *ls, const char *buf, size_t len)
         return len;
 }
 
+static ssize_t dlm_recover_status_show(struct dlm_ls *ls, char *buf)
+{
+        uint32_t status = dlm_recover_status(ls);
+        return sprintf(buf, "%x\n", status);
+}
+
 struct dlm_attr {
         struct attribute attr;
         ssize_t (*show)(struct dlm_ls *, char *);
@@ -96,10 +103,16 @@ static struct dlm_attr dlm_attr_id = {
         .store = dlm_id_store
 };
 
+static struct dlm_attr dlm_attr_recover_status = {
+        .attr  = {.name = "recover_status", .mode = S_IRUGO},
+        .show  = dlm_recover_status_show
+};
+
 static struct attribute *dlm_attrs[] = {
         &dlm_attr_control.attr,
         &dlm_attr_event.attr,
         &dlm_attr_id.attr,
+        &dlm_attr_recover_status.attr,
         NULL,
 };