[Libguestfs] [PATCH 5/5] New API: btrfs_filesystem_set_label

[Pino Toscano]

In data venerdì 26 dicembre 2014 16:17:49, Hu Tao ha scritto:
> Signed-off-by: Hu Tao <hutao at cn.fujitsu.com>
> ---
>  daemon/btrfs.c       | 33 +++++++++++++++++++++++++++++++++
>  generator/actions.ml | 16 ++++++++++++++++
>  src/MAX_PROC_NR      |  2 +-
>  3 files changed, 50 insertions(+), 1 deletion(-)
> 
> diff --git a/daemon/btrfs.c b/daemon/btrfs.c
> index 32b1b05..f9e35be 100644
> --- a/daemon/btrfs.c
> +++ b/daemon/btrfs.c
> @@ -1463,3 +1463,36 @@ do_btrfs_filesystem_defragment (const char *path)
>  
>    return 0;
>  }
> +
> +int
> +do_btrfs_filesystem_set_label (const char *path, const char *label)
> +{
> +  const size_t MAX_ARGS = 64;
> +  const char *argv[MAX_ARGS];
> +  size_t i = 0;
> +  CLEANUP_FREE char *path_buf = NULL;
> +  CLEANUP_FREE char *err = NULL;
> +  CLEANUP_FREE char *out = NULL;
> +  int r;
> +
> +  path_buf = sysroot_path (path);
> +  if (path_buf == NULL) {
> +    reply_with_perror ("malloc");
> +    return -1;
> +  }
> +
> +  ADD_ARG (argv, i, str_btrfs);
> +  ADD_ARG (argv, i, "filesystem");
> +  ADD_ARG (argv, i, "label");
> +  ADD_ARG (argv, i, path_buf);
> +  ADD_ARG (argv, i, label);
> +  ADD_ARG (argv, i, NULL);
> +
> +  r = commandv (&out, &err, argv);
> +  if (r == -1) {
> +    reply_with_error ("%s: %s", path, err);
> +    return -1;
> +  }
> +
> +  return 0;
> +}

Isn't this alredy covered by set_label?

> diff --git a/generator/actions.ml b/generator/actions.ml
> index 4b24f8a..7e1f3ed 100644
> --- a/generator/actions.ml
> +++ b/generator/actions.ml
> @@ -12316,6 +12316,22 @@ Get a btrfs filesystem's label." };
>      longdesc = "\
>  Defragment a file or directory." };
>  
> +  { defaults with
> +    name = "btrfs_filesystem_set_label";
> +    style = RErr, [Pathname "path"; String "label"], [];
> +    proc_nr = Some 439;
> +    optional = Some "btrfs"; camel_name = "BTRFSFilesystemSetLabel";
> +    tests = [
> +      InitPartition, Always, TestResultString (
> +        [["mkfs_btrfs"; "/dev/sda1"; ""; ""; "NOARG"; ""; "NOARG"; "NOARG"; ""; ""];
> +         ["mount"; "/dev/sda1"; "/"];
> +         ["btrfs_filesystem_set_label"; "/"; "newlabel"];
> +         ["btrfs_filesystem_get_label"; "/"]], "newlabel"), [];
> +    ];

This test bit would be good to be added to the tests of set_label,
just with s/Always/IfAvailable "btrfs"/ so it is run only when btrfs
is available.

Thanks,
-- 
Pino Toscano