X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=block%2Fblk-cgroup.h;fp=block%2Fblk-cgroup.h;h=3573199b298bc8fe7d5f1724917af8997d269d34;hb=2868ef7b39490e6b41c2c61cd9a5cd891e778b54;hp=cd50a2f8733e5daa6f4e127fa8a9fa1dea5ae668;hpb=b1c3576961847da26c91b1e97f226bb66be5fa3f;p=safe%2Fjmp%2Flinux-2.6

diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index cd50a2f..3573199 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -27,12 +27,25 @@ struct blkio_group {
 	void *key;
 	struct hlist_node blkcg_node;
 	unsigned short blkcg_id;
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+	/* Store cgroup path */
+	char path[128];
+#endif
 };
 
 #define BLKIO_WEIGHT_MIN	100
 #define BLKIO_WEIGHT_MAX	1000
 #define BLKIO_WEIGHT_DEFAULT	500
 
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+static inline char *blkg_path(struct blkio_group *blkg)
+{
+	return blkg->path;
+}
+#else
+static inline char *blkg_path(struct blkio_group *blkg) { return NULL; }
+#endif
+
 #ifdef CONFIG_BLK_CGROUP
 extern struct blkio_cgroup blkio_root_cgroup;
 extern struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup);