Btrfs-progs: add support for mixed data+metadata block groups

[platform/upstream/btrfs-progs.git] / utils.c

diff --git a/utils.c b/utils.c
index 35e17b8..ad980ae 100644 (file)
--- a/utils.c
+++ b/utils.c
@@ -512,7 +512,8 @@ int btrfs_add_to_fsid(struct btrfs_trans_handle *trans,
        return 0;
 }
 
-int btrfs_prepare_device(int fd, char *file, int zero_end, u64 *block_count_ret)
+int btrfs_prepare_device(int fd, char *file, int zero_end, u64 *block_count_ret,
+                        int *mixed)
 {
        u64 block_count;
        u64 bytenr;
@@ -532,10 +533,9 @@ int btrfs_prepare_device(int fd, char *file, int zero_end, u64 *block_count_ret)
        }
        zero_end = 1;
 
-       if (block_count < 256 * 1024 * 1024) {
-               fprintf(stderr, "device %s is too small "
-                       "(must be at least 256 MB)\n", file);
-               exit(1);
+       if (block_count < 1024 * 1024 * 1024 && !(*mixed)) {
+               printf("SMALL VOLUME: forcing mixed metadata/data groups\n");
+               *mixed = 1;
        }
        ret = zero_dev_start(fd);
        if (ret) {