btrfs-progs/btrfs-progs-0.19-ignore-deleted-loopmounts.patch

--- btrfs-progs-0.19/utils.c.ignore_del_loopmnts~	2011-12-01 15:54:26.000000000 +0100
+++ btrfs-progs-0.19/utils.c	2011-12-01 15:54:50.044470770 +0100
@@ -695,21 +695,29 @@ int is_same_blk_file(const char* a, cons
 	char real_a[PATH_MAX];
 	char real_b[PATH_MAX];
 
-	if(!realpath(a, real_a) ||
-	   !realpath(b, real_b))
-	{
-		return -errno;
-	}
+	if(!realpath(a, real_a))
+            strcpy(real_a, a);
+
+        if (!realpath(b, real_b))
+            strcpy(real_b, b);
 
 	/* Identical path? */
 	if(strcmp(real_a, real_b) == 0)
 		return 1;
 
-	if(stat(a, &st_buf_a) < 0 ||
-	   stat(b, &st_buf_b) < 0)
-	{
-		if (errno == ENOENT)
-			return 0;
+	if(stat(a, &st_buf_a) < 0)
+        {
+            if (errno == ENOENT)
+                return 0;
+
+		return -errno;
+	}
+
+	if(stat(b, &st_buf_b) < 0)
+        {
+            if (errno == ENOENT)
+                return 0;
+
 		return -errno;
 	}
 
@@ -750,10 +758,13 @@ int is_same_loop_file(const char* a, con
 			return 0;
 		return ret;
 	} else if (ret) {
-		if ((ret = resolve_loop_device(a, res_a, sizeof(res_a))) < 0)
+		if((ret = resolve_loop_device(a, res_a, sizeof(res_a))) < 0) {
+                    if (errno != EPERM)
 			return ret;
 
-		final_a = res_a;
+                }
+                else
+                    final_a = res_a;
 	} else {
 		final_a = a;
 	}
@@ -764,10 +775,12 @@ int is_same_loop_file(const char* a, con
 			return 0;
 		return ret;
 	} else if (ret) {
-		if((ret = resolve_loop_device(b, res_b, sizeof(res_b))) < 0)
-			return ret;
-
-		final_b = res_b;
+		if((ret = resolve_loop_device(b, res_b, sizeof(res_b))) < 0) {
+                    if (errno != EPERM)
+                        return ret;
+                }
+                else
+                    final_b = res_b;
 	} else {
 		final_b = b;
 	}