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authorSunil Mushran <sunil.mushran@oracle.com>2008-03-10 15:16:22 -0700
committerMark Fasheh <mfasheh@suse.com>2008-04-18 08:56:08 -0700
commit6325b4a22b8f5e40ea9353288b3d6a32181f9718 (patch)
tree3a76692cc5c1c7dfa9d7341ea8b07cb7eb4dadd0 /fs/ocfs2/dlm/dlmdebug.c
parent29576f8bb54045be944ba809d4fca1ad77c94165 (diff)
ocfs2/dlm: Create debugfs dirs
This patch creates the debugfs directories that will hold the files to be used to dump the dlm state. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/dlm/dlmdebug.c')
-rw-r--r--fs/ocfs2/dlm/dlmdebug.c50
1 files changed, 49 insertions, 1 deletions
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index 64239b37e5d..62e2a4cbf60 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -30,6 +30,7 @@
#include <linux/utsname.h>
#include <linux/sysctl.h>
#include <linux/spinlock.h>
+#include <linux/debugfs.h>
#include "cluster/heartbeat.h"
#include "cluster/nodemanager.h"
@@ -37,8 +38,8 @@
#include "dlmapi.h"
#include "dlmcommon.h"
-
#include "dlmdomain.h"
+#include "dlmdebug.h"
#define MLOG_MASK_PREFIX ML_DLM
#include "cluster/masklog.h"
@@ -266,3 +267,50 @@ const char *dlm_errname(enum dlm_status err)
return dlm_errnames[err];
}
EXPORT_SYMBOL_GPL(dlm_errname);
+
+
+#ifdef CONFIG_DEBUG_FS
+
+static struct dentry *dlm_debugfs_root = NULL;
+
+#define DLM_DEBUGFS_DIR "o2dlm"
+
+/* subroot - domain dir */
+int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
+{
+ dlm->dlm_debugfs_subroot = debugfs_create_dir(dlm->name,
+ dlm_debugfs_root);
+ if (!dlm->dlm_debugfs_subroot) {
+ mlog_errno(-ENOMEM);
+ goto bail;
+ }
+
+ return 0;
+bail:
+ dlm_destroy_debugfs_subroot(dlm);
+ return -ENOMEM;
+}
+
+void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
+{
+ if (dlm->dlm_debugfs_subroot)
+ debugfs_remove(dlm->dlm_debugfs_subroot);
+}
+
+/* debugfs root */
+int dlm_create_debugfs_root(void)
+{
+ dlm_debugfs_root = debugfs_create_dir(DLM_DEBUGFS_DIR, NULL);
+ if (!dlm_debugfs_root) {
+ mlog_errno(-ENOMEM);
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+void dlm_destroy_debugfs_root(void)
+{
+ if (dlm_debugfs_root)
+ debugfs_remove(dlm_debugfs_root);
+}
+#endif /* CONFIG_DEBUG_FS */