[oe] [PATCH] udev/mount.sh: try to kill active processes before umount
Koen Kooi
k.kooi at student.utwente.nl
Tue Jun 22 11:02:30 UTC 2010
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Wouldn't a umount -l be a lot better in this case?
On 22-06-10 12:08, Steffen Sledz wrote:
> * umount will fail if there are processes accessing files at the
> device. Therefor try to kill these processes using fuser if
> available.
>
> Signed-off-by: Steffen Sledz <sledz at dresearch.de>
> ---
> recipes/udev/files/mount.sh | 21 ++++++++++++++++++++-
> recipes/udev/files/slugos/mount.sh | 21 ++++++++++++++++++++-
> 2 files changed, 40 insertions(+), 2 deletions(-)
>
> diff --git a/recipes/udev/files/mount.sh b/recipes/udev/files/mount.sh
> index be8b3df..79c6891 100644
> --- a/recipes/udev/files/mount.sh
> +++ b/recipes/udev/files/mount.sh
> @@ -8,6 +8,7 @@
> MOUNT="/bin/mount"
> PMOUNT="/usr/bin/pmount"
> UMOUNT="/bin/umount"
> +FUSER="/usr/bin/fuser"
> name="`basename "$DEVNAME"`"
>
> for line in `cat /etc/udev/mount.blacklist | grep -v ^#`
> @@ -64,7 +65,25 @@ fi
> if [ "$ACTION" = "remove" ] && [ -x "$UMOUNT" ] && [ -n "$DEVNAME" ]; then
> for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " `
> do
> - $UMOUNT $mnt
> + if [ -x "$FUSER" ]; then
> + $FUSER -k -KILL -m $mnt
> + for try in `seq 10`
> + do
> + $FUSER -m $mnt || break
> + sleep 1
> + logger "mount.sh/automount" "$try secs waited for processes active at $mnt to finish on SIGKILL"
> + done
> +
> + if $FUSER -m $mnt
> + then
> + logger "mount.sh/automount" "Could not kill all processes using files at $mnt, try forced umount"
> + $UMOUNT -f $mnt
> + else
> + $UMOUNT $mnt
> + fi
> + else
> + $UMOUNT $mnt
> + fi
> done
>
> # Remove empty directories from auto-mounter
> diff --git a/recipes/udev/files/slugos/mount.sh b/recipes/udev/files/slugos/mount.sh
> index 0990a7e..f67c3ff 100644
> --- a/recipes/udev/files/slugos/mount.sh
> +++ b/recipes/udev/files/slugos/mount.sh
> @@ -8,6 +8,7 @@
> MOUNT="/bin/mount"
> PMOUNT="/usr/bin/pmount"
> UMOUNT="/bin/umount"
> +FUSER="/usr/bin/fuser"
> name="`basename "$DEVNAME"`"
>
> if ( blkid "$DEVNAME" | grep -q 'TYPE="mdraid"' )
> @@ -75,7 +76,25 @@ fi
> if [ "$ACTION" = "remove" ] && [ -x "$UMOUNT" ] && [ -n "$DEVNAME" ]; then
> for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " `
> do
> - $UMOUNT $mnt
> + if [ -x "$FUSER" ]; then
> + $FUSER -k -KILL -m $mnt
> + for try in `seq 10`
> + do
> + $FUSER -m $mnt || break
> + sleep 1
> + logger "mount.sh/automount" "$try secs waited for processes active at $mnt to finish on SIGKILL"
> + done
> +
> + if $FUSER -m $mnt
> + then
> + logger "mount.sh/automount" "Could not kill all processes using files at $mnt, try forced umount"
> + $UMOUNT -f $mnt
> + else
> + $UMOUNT $mnt
> + fi
> + else
> + $UMOUNT $mnt
> + fi
> done
>
> # Remove empty directories from auto-mounter
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