[projects/rc-scripts/lxc] filter_ns: always add dead processes

[glen]

commit 8b9724602a75cb59611bfa43d88ba71f81588125
Author: Elan Ruusamäe <glen at delfi.ee>
Date:   Wed Nov 20 12:24:43 2013 +0200

    filter_ns: always add dead processes

 lib/functions | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)
---
diff --git a/lib/functions b/lib/functions
index f7af7de..56cab80 100644
--- a/lib/functions
+++ b/lib/functions
@@ -534,11 +534,17 @@ filter_ns() {
 	[ "$cur_ns" ] || return 1
 
 	local pid ns pids=""
+	# add pids if it matches current pid namespace
+	# we should add pids what do not exist (dead processes),
+	# but not add pids whose namespace does not match
+	# (processes belonging to different NS do exist in /proc)
 	for pid in "$@"; do
+		if [ ! -d /proc/$pid ]; then
+			pids="$pids $pid"
+			continue
+		fi
 		ns=$(resolvesymlink /proc/$pid/ns/pid)
-		# add if matches current pid namespace
-		# also add if empty ns found (for dead pids?) FIXME
-		if [ -z "$ns" -o "$ns" = "$cur_ns" ]; then
+		if [ "$ns" = "$cur_ns" ]; then
 			pids="$pids $pid"
 		fi
 	done
================================================================

---- gitweb:

http://git.pld-linux.org/gitweb.cgi/projects/rc-scripts.git/commitdiff/8b9724602a75cb59611bfa43d88ba71f81588125