On fri, 19 Oct 2012 14:23:55 +0800, Anand jain wrote:
> From: Anand Jain <anand.j...@oracle.com>
>
> btrfs su list -a /btrfs/sv1
> ID 256 gen 6 top level 5 path <FS_TREE>/sv1
> ID 258 gen 6 top level 5 path <FS_TREE>/ss1
I don't agree with this patch, because after applying this patch, the output of
'btrfs su list'
is the same as 'btrfs su list'. I hope 'btrfs su list' just list the subvolumes
in the specified
path. In this way, the user can find the path of the subvolume easily (the
specified path + the
path in the result of 'btrfs su list').
Could you make it output the path which is relative to the path that the user
specified?
Thanks
Miao
>
> Signed-off-by: Anand Jain <anand.j...@oracle.com>
> ---
> cmds-subvolume.c | 15 +++++++++++++--
> 1 files changed, 13 insertions(+), 2 deletions(-)
>
> diff --git a/cmds-subvolume.c b/cmds-subvolume.c
> index a33c352..f8beecc 100644
> --- a/cmds-subvolume.c
> +++ b/cmds-subvolume.c
> @@ -306,7 +306,7 @@ static int cmd_subvol_list(int argc, char **argv)
> u64 top_id;
> int ret;
> int c;
> - char *subvol;
> + char *subvol, *mnt = NULL;
> int is_tab_result = 0;
> int is_list_all = 0;
> struct option long_options[] = {
> @@ -398,9 +398,18 @@ static int cmd_subvol_list(int argc, char **argv)
> return 13;
> }
>
> - fd = open_file_or_dir(subvol);
> + ret = find_mount_root(subvol, &mnt);
> + if (ret < 0) {
> + fprintf(stderr, "ERROR: find_mount_root failed on %s: "
> + "%s\n", subvol,
> + strerror(-ret));
> + return 12;
> + }
> +
> + fd = open_file_or_dir(mnt);
> if (fd < 0) {
> fprintf(stderr, "ERROR: can't access '%s'\n", subvol);
> + free(mnt);
> return 12;
> }
>
> @@ -412,6 +421,8 @@ static int cmd_subvol_list(int argc, char **argv)
>
> ret = btrfs_list_subvols(fd, filter_set, comparer_set,
> is_tab_result);
> +
> + free(mnt);
> if (ret)
> return 19;
> return 0;
>
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