[Ocfs2-tools-devel] [PATCH 1/1] ocfs2-tools: add pwd command support for debugfs.ocfs2

[Sunil Mushran]

  debugfs.ocfs2 allows chroot. So print the current root like debugfs.

debugfs:  pwd
[pwd]   INODE: 977283  PATH: /usr/bin
[root]  INODE: 977281  PATH: /usr

Also, traversing the entire tree on every pwd will be very expensive.
How about caching the current dir? But do note that the tool allows
cd <inodenum>.

You can always look at debugfs in e2fsprogs to get some ideas.

Sunil

Jeff Liu wrote:
> This patch add pwd command support for debugfs.ocfs2
>
> Signed-off-by: Jeff Liu <jeff.liu at oracle.com>
> ---
>  debugfs.ocfs2/commands.c |   21 +++++++++++++++++++++
>  1 files changed, 21 insertions(+), 0 deletions(-)
>
> diff --git a/debugfs.ocfs2/commands.c b/debugfs.ocfs2/commands.c
> index 0dea23f..f70cdcf 100644
> --- a/debugfs.ocfs2/commands.c
> +++ b/debugfs.ocfs2/commands.c
> @@ -74,6 +74,7 @@ static void do_icheck (char **args);
>  static void do_dlm_locks (char **args);
>  static void do_controld(char **args);
>  static void do_dirblocks(char **args);
> +static void do_pwd(char **args);
>  
>  dbgfs_gbls gbls;
>  
> @@ -110,6 +111,7 @@ static Command commands[] = {
>  	{ "encode",	do_encode_lockres },
>  	{ "decode",	do_decode_lockres },
>  	{ "dirblocks",	do_dirblocks },
> +	{ "pwd",	do_pwd },
>  };
>  
>  /*
> @@ -1769,3 +1771,22 @@ static void do_icheck(char **args)
>  
>  	return;
>  }
> +
> +/*
> + * do_pwd()
> + *
> + */
> +static void do_pwd(char **args)
> +{
> +	uint64_t blkno[1];
> +	int findall = 1;
> +	int count = 1;
> +
> +	if (check_device_open())
> +		return;
> +
> +	blkno[0] = gbls.cwd_blkno;
> +	find_inode_paths(gbls.fs, args, findall, count, blkno, stdout);
> +
> +	return ;
> +}
>