btrfs-progs: use standard allocation functions in non-kenrel code

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

btrfs-convert.c

@@ -2598,7 +2598,7 @@ static int may_rollback(struct btrfs_root *root)
 
 		num_stripes = multi->num_stripes;
 		physical = multi->stripes[0].physical;
-		kfree(multi);
+		free(multi);
 
 		if (num_stripes != 1) {
 			error("num stripes for bytenr %llu is not 1", bytenr);

btrfs-corrupt-block.c

@@ -65,7 +65,7 @@ static int debug_corrupt_block(struct extent_buffer *eb,
 			"mirror %d logical %llu physical %llu device %s\n",
 			mirror_num, (unsigned long long)bytenr,
 			(unsigned long long)eb->dev_bytenr, device->name);
-		kfree(multi);
+		free(multi);
 
 		if (!copy || mirror_num == copy) {
 			ret = read_extent_from_disk(eb, 0, eb->len);

btrfs-map-logical.c

@@ -125,7 +125,7 @@ static int __print_mapping_info(struct btrfs_fs_info *fs_info, u64 logical,
 				multi->stripes[0].physical,
 				device->name);
 		}
-		kfree(multi);
+		free(multi);
 		multi = NULL;
 		cur_offset += cur_len;
 	}

chunk-recover.c

@@ -968,7 +968,7 @@ static int build_device_map_by_chunk_record(struct btrfs_root *root,
 		map->stripes[i].dev = btrfs_find_device(root, devid,
 							uuid, NULL);
 		if (!map->stripes[i].dev) {
-			kfree(map);
+			free(map);
 			return -EIO;
 		}
 	}

cmds-check.c

@@ -3210,7 +3210,7 @@ static void free_root_record(struct cache_extent *cache)
 		free(backref);
 	}
 
-	kfree(rec);
+	free(rec);
 }
 
 FREE_EXTENT_CACHE_BASED_TREE(root_recs, free_root_record);
@@ -5474,7 +5474,7 @@ static int check_cache_range(struct btrfs_root *root,
 				continue;
 			if (logical[nr] == offset) {
 				if (stripe_len >= bytes) {
-					kfree(logical);
+					free(logical);
 					return 0;
 				}
 				bytes -= stripe_len;
@@ -5482,7 +5482,7 @@ static int check_cache_range(struct btrfs_root *root,
 			} else if (logical[nr] < offset) {
 				if (logical[nr] + stripe_len >=
 				    offset + bytes) {
-					kfree(logical);
+					free(logical);
 					return 0;
 				}
 				bytes = (offset + bytes) -
@@ -5505,7 +5505,7 @@ static int check_cache_range(struct btrfs_root *root,
 							offset,
 							logical[nr] - offset);
 				if (ret) {
-					kfree(logical);
+					free(logical);
 					return ret;
 				}
 
@@ -5516,7 +5516,7 @@ static int check_cache_range(struct btrfs_root *root,
 			}
 		}
 
-		kfree(logical);
+		free(logical);
 	}
 
 	entry = btrfs_find_free_space(cache->free_space_ctl, offset, bytes);

cmds-filesystem.c

@@ -495,7 +495,7 @@ static int btrfs_scan_kernel(void *search, unsigned unit_mode)
 		if ((fd != -1) && !get_df(fd, &space_info_arg)) {
 			print_one_fs(&fs_info_arg, dev_info_arg,
 				     space_info_arg, label, unit_mode);
-			kfree(space_info_arg);
+			free(space_info_arg);
 			memset(label, 0, sizeof(label));
 			found = 1;
 		}

cmds-restore.c

@@ -356,7 +356,7 @@ again:
 	dev_fd = device->fd;
 	device->total_ios++;
 	dev_bytenr = multi->stripes[0].physical;
-	kfree(multi);
+	free(multi);
 
 	if (size_left < length)
 		length = size_left;

utils.c

@@ -1621,12 +1621,12 @@ int btrfs_add_to_fsid(struct btrfs_trans_handle *trans,
 
 	device_total_bytes = (device_total_bytes / sectorsize) * sectorsize;
 
-	device = kzalloc(sizeof(*device), GFP_NOFS);
+	device = calloc(1, sizeof(*device));
 	if (!device) {
 		ret = -ENOMEM;
 		goto out;
 	}
-	buf = kzalloc(sectorsize, GFP_NOFS);
+	buf = calloc(1, sectorsize);
 	if (!buf) {
 		ret = -ENOMEM;
 		goto out;
@@ -1679,14 +1679,14 @@ int btrfs_add_to_fsid(struct btrfs_trans_handle *trans,
 	ret = pwrite(fd, buf, sectorsize, BTRFS_SUPER_INFO_OFFSET);
 	BUG_ON(ret != sectorsize);
 
-	kfree(buf);
+	free(buf);
 	list_add(&device->dev_list, &root->fs_info->fs_devices->devices);
 	device->fs_devices = root->fs_info->fs_devices;
 	return 0;
 
 out:
-	kfree(device);
-	kfree(buf);
+	free(device);
+	free(buf);
 	return ret;
 }