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| author | Jo-Philipp Wich <jow@openwrt.org> | 2011-10-27 16:52:31 +0000 |
|---|---|---|
| committer | Jo-Philipp Wich <jow@openwrt.org> | 2011-10-27 16:52:31 +0000 |
| commit | 52e93e54bca8aecf3846b8924e7ae15e497cdc2a (patch) | |
| tree | f7898d622351d54ce26b26210a1ff6bde6822661 /package/base-files/files/lib/upgrade/common.sh | |
| parent | 825658977f19c135acadc1ae741e376f796446a5 (diff) | |
| download | upstream-52e93e54bca8aecf3846b8924e7ae15e497cdc2a.tar.gz upstream-52e93e54bca8aecf3846b8924e7ae15e497cdc2a.tar.bz2 upstream-52e93e54bca8aecf3846b8924e7ae15e497cdc2a.zip | |
base-files: sysupgrade: kill all but essential processes before starting the update
SVN-Revision: 28626
Diffstat (limited to 'package/base-files/files/lib/upgrade/common.sh')
| -rw-r--r-- | package/base-files/files/lib/upgrade/common.sh | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh index 65ce816db2..2126ca1c38 100644 --- a/package/base-files/files/lib/upgrade/common.sh +++ b/package/base-files/files/lib/upgrade/common.sh @@ -77,6 +77,30 @@ run_ramfs() { # <command> [...] exec /bin/busybox ash -c "$*" } +kill_remaining() { # [ <signal> ] + local sig="${1:-TERM}" + echo -n "Sending $sig to remaing processes ... " + top -bn1 | while read pid ppid user stat vsz pvsz pcpu cmd args; do + case "$pid" in + [0-9]*) : ;; + *) continue ;; + esac + case "$cmd" in + # Skip kernel threads and essential services + \[*\]|*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*) : ;; + + # Killable process + *) + if [ $pid -ne $$ ] && [ $ppid -ne $$ ]; then + echo -n "${cmd##*/} " + kill -$sig $pid 2>/dev/null + fi + ;; + esac + done + echo "" +} + run_hooks() { local arg="$1"; shift for func in "$@"; do |