Re: [PATCH 1/2] xfs_admin: support external log devices

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On 12/2/19 11:37 AM, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> 
> Add to xfs_admin the ability to pass external log devices to xfs_db.
> This is necessary to make changes on such filesystems.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> ---
>  db/xfs_admin.sh      |   12 ++++++++++--
>  man/man8/xfs_admin.8 |    3 +++
>  2 files changed, 13 insertions(+), 2 deletions(-)
> 
> 
> diff --git a/db/xfs_admin.sh b/db/xfs_admin.sh
> index 305ef2b7..bd325da2 100755
> --- a/db/xfs_admin.sh
> +++ b/db/xfs_admin.sh
> @@ -7,7 +7,7 @@
>  status=0
>  DB_OPTS=""
>  REPAIR_OPTS=""
> -USAGE="Usage: xfs_admin [-efjlpuV] [-c 0|1] [-L label] [-U uuid] device"
> +USAGE="Usage: xfs_admin [-efjlpuV] [-c 0|1] [-L label] [-U uuid] device [logdev]"
>  
>  while getopts "efjlpuc:L:U:V" c
>  do
> @@ -33,7 +33,15 @@ done
>  set -- extra $@
>  shift $OPTIND
>  case $# in
> -	1)	if [ -n "$DB_OPTS" ]
> +	1|2)
> +		# Pick up the log device, if present
> +		if [ -n "$2" ]; then
> +			DB_OPTS=$DB_OPTS" -l '$2'"
> +			test -n "$REPAIR_OPTS" && \
> +				REPAIR_OPTS=$REPAIR_OPTS" -l '$2'"
> +		fi
> +
> +		if [ -n "$DB_OPTS" ]
>  		then
>  			eval xfs_db -x -p xfs_admin $DB_OPTS $1
>  			status=$?
> diff --git a/man/man8/xfs_admin.8 b/man/man8/xfs_admin.8
> index 20a114f5..d7942418 100644
> --- a/man/man8/xfs_admin.8
> +++ b/man/man8/xfs_admin.8
> @@ -15,6 +15,9 @@ xfs_admin \- change parameters of an XFS filesystem
>  .I uuid
>  ]
>  .I device
> +[
> +.I logdev
> +]

logdev should be marked as optional, right?  [logdev] ?
And documented as to when this arg should (or should not be) used?

-Eric



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