btrfs-progs: mkfs: convert int to bool in a few helpers

Signed-off-by: David Sterba <dsterba@suse.com>

mkfs/common.c

@@ -1067,7 +1067,7 @@ out:
  *  1: something is wrong, an error is printed
  *  0: all is fine
  */
-int test_dev_for_mkfs(const char *file, int force_overwrite)
+bool test_dev_for_mkfs(const char *file, int force_overwrite)
 {
 	int ret, fd;
 	struct stat st;
@@ -1076,15 +1076,15 @@ int test_dev_for_mkfs(const char *file, int force_overwrite)
 	if (ret < 0) {
 		errno = -ret;
 		error("checking status of %s: %m", file);
-		return 1;
+		return true;
 	}
 	if (ret == 1) {
 		error("%s is a swap device", file);
-		return 1;
+		return true;
 	}
 	ret = test_status_for_mkfs(file, force_overwrite);
 	if (ret)
-		return 1;
+		return true;
 	/*
 	 * Check if the device is busy. Open it in read-only mode to avoid triggering
 	 * udev events.
@@ -1092,26 +1092,26 @@ int test_dev_for_mkfs(const char *file, int force_overwrite)
 	fd = open(file, O_RDONLY | O_EXCL);
 	if (fd < 0) {
 		error("unable to open %s: %m", file);
-		return 1;
+		return true;
 	}
 	if (fstat(fd, &st)) {
 		error("unable to stat %s: %m", file);
 		close(fd);
-		return 1;
+		return true;
 	}
 	if (!S_ISBLK(st.st_mode)) {
 		error("%s is not a block device", file);
 		close(fd);
-		return 1;
+		return true;
 	}
 	close(fd);
-	return 0;
+	return false;
 }
 
 /*
  * check if the file (device) is formatted or mounted
  */
-int test_status_for_mkfs(const char *file, bool force_overwrite)
+bool test_status_for_mkfs(const char *file, bool force_overwrite)
 {
 	int ret;
 
@@ -1119,21 +1119,21 @@ int test_status_for_mkfs(const char *file, bool force_overwrite)
 		if (check_overwrite(file)) {
 			error("use the -f option to force overwrite of %s",
 					file);
-			return 1;
+			return true;
 		}
 	}
 	ret = check_mounted(file);
 	if (ret < 0) {
 		errno = -ret;
 		error("cannot check mount status of %s: %m", file);
-		return 1;
+		return true;
 	}
 	if (ret == 1) {
 		error("%s is mounted", file);
-		return 1;
+		return true;
 	}
 
-	return 0;
+	return false;
 }
 
 int is_vol_small(const char *file)

mkfs/common.h

@@ -106,7 +106,7 @@ int test_minimum_size(const char *file, u64 min_dev_size);
 int is_vol_small(const char *file);
 int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile,
 	u64 dev_cnt, int mixed, int ssd);
-int test_status_for_mkfs(const char *file, bool force_overwrite);
-int test_dev_for_mkfs(const char *file, int force_overwrite);
+bool test_status_for_mkfs(const char *file, bool force_overwrite);
+bool test_dev_for_mkfs(const char *file, int force_overwrite);
 
 #endif

mkfs/main.c

@@ -507,10 +507,10 @@ static void list_all_devices(struct btrfs_root *root)
 	printf("\n");
 }
 
-static int is_temp_block_group(struct extent_buffer *node,
-			       struct btrfs_block_group_item *bgi,
-			       u64 data_profile, u64 meta_profile,
-			       u64 sys_profile)
+static bool is_temp_block_group(struct extent_buffer *node,
+				struct btrfs_block_group_item *bgi,
+				u64 data_profile, u64 meta_profile,
+				u64 sys_profile)
 {
 	u64 flag = btrfs_block_group_flags(node, bgi);
 	u64 flag_type = flag & BTRFS_BLOCK_GROUP_TYPE_MASK;
@@ -537,26 +537,26 @@ static int is_temp_block_group(struct extent_buffer *node,
 	 * So only use condition 1) and 2) to judge them.
 	 */
 	if (used != 0)
-		return 0;
+		return false;
 	switch (flag_type) {
 	case BTRFS_BLOCK_GROUP_DATA:
 	case BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_METADATA:
 		data_profile &= BTRFS_BLOCK_GROUP_PROFILE_MASK;
 		if (flag_profile != data_profile)
-			return 1;
+			return true;
 		break;
 	case BTRFS_BLOCK_GROUP_METADATA:
 		meta_profile &= BTRFS_BLOCK_GROUP_PROFILE_MASK;
 		if (flag_profile != meta_profile)
-			return 1;
+			return true;
 		break;
 	case BTRFS_BLOCK_GROUP_SYSTEM:
 		sys_profile &= BTRFS_BLOCK_GROUP_PROFILE_MASK;
 		if (flag_profile != sys_profile)
-			return 1;
+			return true;
 		break;
 	}
-	return 0;
+	return false;
 }
 
 /* Note: if current is a block group, it will skip it anyway */