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scripts: zfs.sh: unload zfs with dependencies

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Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13274
This commit is contained in:
наб 2022-04-04 13:08:59 +02:00 committed by Brian Behlendorf
parent d18da59d30
commit 469b8481aa
1 changed files with 9 additions and 52 deletions
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61
scripts/zfs.sh
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@ -18,6 +18,7 @@ STACK_TRACER="no"
ZED_PIDFILE=${ZED_PIDFILE:-/var/run/zed.pid} ZED_PIDFILE=${ZED_PIDFILE:-/var/run/zed.pid}
LDMOD=${LDMOD:-/sbin/modprobe} LDMOD=${LDMOD:-/sbin/modprobe}
DELMOD=${DELMOD:-/sbin/modprobe -r}
KMOD_ZLIB_DEFLATE=${KMOD_ZLIB_DEFLATE:-zlib_deflate} KMOD_ZLIB_DEFLATE=${KMOD_ZLIB_DEFLATE:-zlib_deflate}
KMOD_ZLIB_INFLATE=${KMOD_ZLIB_INFLATE:-zlib_inflate} KMOD_ZLIB_INFLATE=${KMOD_ZLIB_INFLATE:-zlib_inflate}
@ -110,10 +111,11 @@ check_modules_linux() {
load_module_linux() { load_module_linux() {
KMOD=$1 KMOD=$1
if [ "$VERBOSE" = "yes" ]; then FILE=$(modinfo "$KMOD" 2>&1 | awk 'NR == 1 && /zlib/ && /not found/ {print "(builtin)"; exit} /^filename:/ {print $2}')
FILE=$(modinfo "$KMOD" | awk '/^filename:/ {print $2}') [ "$FILE" = "(builtin)" ] && return
VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
if [ "$VERBOSE" = "yes" ]; then
VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
echo "Loading: $FILE ($VERSION)" echo "Loading: $FILE ($VERSION)"
fi fi
@ -138,15 +140,7 @@ load_modules_freebsd() {
load_modules_linux() { load_modules_linux() {
mkdir -p /etc/zfs mkdir -p /etc/zfs
if modinfo "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1; then for KMOD in "$KMOD_ZLIB_DEFLATE" "$KMOD_ZLIB_INFLATE" $KMOD_SPL $KMOD_ZFS; do
modprobe "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1
fi
if modinfo "$KMOD_ZLIB_INFLATE">/dev/null 2>&1; then
modprobe "$KMOD_ZLIB_INFLATE" >/dev/null 2>&1
fi
for KMOD in $KMOD_SPL $KMOD_ZFS; do
load_module_linux "$KMOD" || return 1 load_module_linux "$KMOD" || return 1
done done
@ -157,24 +151,6 @@ load_modules_linux() {
return 0 return 0
} }
unload_module_linux() {
KMOD=$1
NAME="${KMOD##*/}"
NAME="${NAME%.ko}"
if [ "$VERBOSE" = "yes" ]; then
FILE=$(modinfo "$KMOD" | awk '/^filename:/ {print $2}')
VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
echo "Unloading: $FILE ($VERSION)"
fi
rmmod "$NAME" || echo "Failed to unload $NAME"
return 0
}
unload_modules_freebsd() { unload_modules_freebsd() {
kldunload "$KMOD_FREEBSD" || echo "Failed to unload $KMOD_FREEBSD" kldunload "$KMOD_FREEBSD" || echo "Failed to unload $KMOD_FREEBSD"
@ -186,32 +162,13 @@ unload_modules_freebsd() {
} }
unload_modules_linux() { unload_modules_linux() {
for KMOD in $KMOD_ZFS $KMOD_SPL; do NAME="${KMOD_ZFS##*/}"
NAME="${KMOD##*/}" NAME="${NAME%.ko}"
NAME="${NAME%.ko}" $DELMOD "$NAME" || return
USE_COUNT=$(lsmod | awk '/^'"${NAME}"'/ {print $3}')
if [ "$USE_COUNT" = "0" ] ; then
unload_module_linux "$KMOD" || return 1
elif [ "$USE_COUNT" != "" ] ; then
echo "Module ${NAME} is still in use!"
return 1
fi
done
if modinfo "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1; then
modprobe -r "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1
fi
if modinfo "$KMOD_ZLIB_INFLATE">/dev/null 2>&1; then
modprobe -r "$KMOD_ZLIB_INFLATE" >/dev/null 2>&1
fi
if [ "$VERBOSE" = "yes" ]; then if [ "$VERBOSE" = "yes" ]; then
echo "Successfully unloaded ZFS module stack" echo "Successfully unloaded ZFS module stack"
fi fi
return 0
} }
stack_clear_linux() { stack_clear_linux() {