Re: [PATCH v2 3/3] ndctl: add filtering based on numa_node

[Vishal Verma <vishal.l.verma@intel.com>]

On 03/07, Ross Zwisler wrote:
> Add support to 'ndctl list' so that we can filter DIMMs, regions and
> namespaces based on numa node.
> 
> Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
> ---
> v2: Use NUMA_NO_NODE intead of hard coding -1 (Dan).
> ---
>  Documentation/ndctl/ndctl-list.txt |  4 ++++
>  ndctl/list.c                       |  2 ++
>  util/filter.c                      | 40 ++++++++++++++++++++++++++++++++++++--
>  util/filter.h                      |  1 +
>  4 files changed, 45 insertions(+), 2 deletions(-)
> 

Here is the bash completion update for this option.
I've tested it on my single-node VM, but Ross, can you test it on your
setup and let me know if it completes for the available nodes fine?

Thanks,
	-Vishal

8<-----

>From c744e77f26a27e10cc9dd8ca9b1092a45d9d9dcd Mon Sep 17 00:00:00 2001
From: Vishal Verma <vishal.l.verma@intel.com>
Date: Thu, 8 Mar 2018 13:56:59 -0700
Subject: [ndctl PATCH] ndctl, bash-completion: add completion for --numa-node

ndctl list can now accept a --numa-node option for filtering by numa
node. Use the nodes in /sys/devices/system/node to provide completion
options for available nodes.

Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
---
 contrib/ndctl | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/contrib/ndctl b/contrib/ndctl
index 89e0252..b1f5e59 100755
--- a/contrib/ndctl
+++ b/contrib/ndctl
@@ -91,7 +91,7 @@ __ndctlcomp()
 
 	COMPREPLY=( $( compgen -W "$1" -- "$2" ) )
 	for cword in "${COMPREPLY[@]}"; do
-		if [[ "$cword" == @(--bus|--region|--type|--mode|--size|--dimm|--reconfig|--uuid|--name|--sector-size|--map|--namespace|--input|--output|--label-version|--align|--block|--count|--firmware|--media-temperature|--ctrl-temperature|--spares|--media-temperature-threshold|--ctrl-temperature-threshold|--spares-threshold|--media-temperature-alarm|--ctrl-temperature-alarm|--spares-alarm) ]]; then
+		if [[ "$cword" == @(--bus|--region|--type|--mode|--size|--dimm|--reconfig|--uuid|--name|--sector-size|--map|--namespace|--input|--output|--label-version|--align|--block|--count|--firmware|--media-temperature|--ctrl-temperature|--spares|--media-temperature-threshold|--ctrl-temperature-threshold|--spares-threshold|--media-temperature-alarm|--ctrl-temperature-alarm|--spares-alarm|--numa_node) ]]; then
 			COMPREPLY[$i]="${cword}="
 		else
 			COMPREPLY[$i]="${cword} "
@@ -152,6 +152,21 @@ __ndctl_get_sector_sizes()
 	fi
 }
 
+__ndctl_get_nodes()
+{
+	local nlist=""
+
+	for node in /sys/devices/system/node/node*; do
+		node="$(basename $node)"
+		if [[ $node =~ node([0-9]+) ]]; then
+			nlist="$nlist ${BASH_REMATCH[1]}"
+		else
+			continue
+		fi
+	done
+	echo "$nlist"
+}
+
 __ndctl_file_comp()
 {
 	local cur="$1"
@@ -217,6 +232,9 @@ __ndctl_comp_options()
 		--spares-alarm)
 			opts="on off"
 			;;
+		--numa_node)
+			opts=$(__ndctl_get_nodes)
+			;;
 		*)
 			return
 			;;
-- 
2.14.3

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