From c76c2b27fda2a82c6532f6af75ad474d2f7d38e6 Mon Sep 17 00:00:00 2001
From: jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 16 Nov 2011 15:01:18 +0000
Subject: [package] base-files: rewrite killing of nonessential services to not
 rely on top, use the proc filesystem only

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29187 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 package/base-files/files/lib/upgrade/common.sh | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

(limited to 'package/base-files/files/lib')

diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index 0870f7de5..e97958bf9 100644
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -80,19 +80,27 @@ run_ramfs() { # <command> [...]
 kill_remaining() { # [ <signal> ]
 	local sig="${1:-TERM}"
 	echo -n "Sending $sig to remaining processes ... "
-	/bin/busybox top -bn1 2>/dev/null | while read pid ppid user stat vsz pvsz pcpu cmd args; do
-		case "$pid" in
-			[0-9]*) : ;;
-			*) continue ;;
-		esac
-		case "$cmd" in
-			# Skip kernel threads and essential services
-			\[*\]|*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*|*ubusd*|*netifd*|*hostapd*|*wpa_supplicant*|*udhcpc*) : ;;
+
+	local stat
+	for stat in /proc/[0-9]*/stat; do
+		local pid name state ppid rest
+		read pid name state ppid rest < $stat
+		name="${name#(}"; name="${name%)}"
+
+		local cmdline
+		read cmdline < /proc/$pid/cmdline
+
+		# Skip kernel threads 
+		[ -n "$cmdline" ] || continue
+
+		case "$name" in
+			# Skip essential services
+			*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*|*ubusd*|*netifd*|*hostapd*|*wpa_supplicant*|*udhcpc*) : ;;
 
 			# Killable process
 			*)
 				if [ $pid -ne $$ ] && [ $ppid -ne $$ ]; then
-					echo -n "${cmd##*/} "
+					echo -n "$name "
 					kill -$sig $pid 2>/dev/null
 				fi
 			;;
-- 
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