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udev-extraconf: Unmount SD card after ejection

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Adds udev rule to unmount SD card partitions in case of improper
ejection from card reader.

When SD card is ejected from card reader without being unmounted
first, kernel does not generate a REMOVE event, instead it
generates a CHANGE event(only if polling is enabled
/sys/module/block/parameters/events_dfl_poll_msecs) and we don't
have any udev rule in automount.rules to handle this event,so
partitions never get unmounted. Unmounting of partitions can be
done if udev rules handle this CHANGE event.

(From OE-Core rev: 140d188b3665f914396834168feeff6ffcb64d76)

Signed-off-by: Abbas Raza <Abbas_Raza@mentor.com>
Signed-off-by: Yasir-Khan <yasir_khan@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Yasir-Khan
2014-08-14 19:56:37 +05:00
committed by Richard Purdie
parent eb7a847190
commit 0cd5af0272
2 changed files with 2 additions and 3 deletions
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meta/recipes-core/udev/udev-extraconf/automount.rules
+1 -1
View File
@@ -16,4 +16,4 @@
# Media automounting
SUBSYSTEM=="block", ACTION=="add" RUN+="/etc/udev/scripts/mount.sh"
SUBSYSTEM=="block", ACTION=="remove" RUN+="/etc/udev/scripts/mount.sh"
SUBSYSTEM=="block", ACTION=="change", ENV{DISK_MEDIA_CHANGE}=="1" RUN+="/etc/udev/scripts/mount.sh"
meta/recipes-core/udev/udev-extraconf/mount.sh
+1 -2
View File
@@ -78,8 +78,7 @@ if [ "$ACTION" = "add" ] && [ -n "$DEVNAME" ] && [ -n "$ID_FS_TYPE" -o "$media_t
fi
if [ "$ACTION" = "remove" ] && [ -x "$UMOUNT" ] && [ -n "$DEVNAME" ]; then
if [ "$ACTION" = "remove" ] || [ "$ACTION" = "change" ] && [ -x "$UMOUNT" ] && [ -n "$DEVNAME" ]; then
for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " `
do
$UMOUNT $mnt