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Diffstat (limited to 'fs/ocfs2/ocfs2_lockid.h')
-rw-r--r--fs/ocfs2/ocfs2_lockid.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2_lockid.h b/fs/ocfs2/ocfs2_lockid.h
index 7dd9e1e705b..4d5d5655c18 100644
--- a/fs/ocfs2/ocfs2_lockid.h
+++ b/fs/ocfs2/ocfs2_lockid.h
@@ -35,12 +35,15 @@
#define OCFS2_LOCK_ID_MAX_LEN 32
#define OCFS2_LOCK_ID_PAD "000000"
+#define OCFS2_DENTRY_LOCK_INO_START 18
+
enum ocfs2_lock_type {
OCFS2_LOCK_TYPE_META = 0,
OCFS2_LOCK_TYPE_DATA,
OCFS2_LOCK_TYPE_SUPER,
OCFS2_LOCK_TYPE_RENAME,
OCFS2_LOCK_TYPE_RW,
+ OCFS2_LOCK_TYPE_DENTRY,
OCFS2_NUM_LOCK_TYPES
};
@@ -63,6 +66,9 @@ static inline char ocfs2_lock_type_char(enum ocfs2_lock_type type)
case OCFS2_LOCK_TYPE_RW:
c = 'W';
break;
+ case OCFS2_LOCK_TYPE_DENTRY:
+ c = 'N';
+ break;
default:
c = '\0';
}
@@ -70,4 +76,23 @@ static inline char ocfs2_lock_type_char(enum ocfs2_lock_type type)
return c;
}
+static char *ocfs2_lock_type_strings[] = {
+ [OCFS2_LOCK_TYPE_META] = "Meta",
+ [OCFS2_LOCK_TYPE_DATA] = "Data",
+ [OCFS2_LOCK_TYPE_SUPER] = "Super",
+ [OCFS2_LOCK_TYPE_RENAME] = "Rename",
+ /* Need to differntiate from [R]ename.. serializing writes is the
+ * important job it does, anyway. */
+ [OCFS2_LOCK_TYPE_RW] = "Write/Read",
+ [OCFS2_LOCK_TYPE_DENTRY] = "Dentry",
+};
+
+static inline const char *ocfs2_lock_type_string(enum ocfs2_lock_type type)
+{
+#ifdef __KERNEL__
+ mlog_bug_on_msg(type >= OCFS2_NUM_LOCK_TYPES, "%d\n", type);
+#endif
+ return ocfs2_lock_type_strings[type];
+}
+
#endif /* OCFS2_LOCKID_H */