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udev: exclude device-mapper from block device ownership event locking

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This commit is contained in:
Kay Sievers 2014-06-03 16:49:38 +02:00
parent e5999b4679
commit e918a1b5a9
1 changed files with 13 additions and 1 deletions
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14
src/udev/udevd.c
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@ -290,7 +290,19 @@ static void worker_new(struct event *event)
* acquired the lock, the external process will block until
* udev has finished its event handling.
*/
if (streq_ptr("block", udev_device_get_subsystem(dev))) {
/*
* <kabi_> since we make check - device seems unused - we try
* ioctl to deactivate - and device is found to be opened
* <kay> sure, you try to take a write lock
* <kay> if you get it udev is out
* <kay> if you can't get it, udev is busy
* <kabi_> we cannot deactivate openned device (as it is in-use)
* <kay> maybe we should just exclude dm from that thing entirely
* <kabi_> IMHO this sounds like a good plan for this moment
*/
if (streq_ptr("block", udev_device_get_subsystem(dev)) &&
!startswith("dm-", udev_device_get_sysname(dev))) {
struct udev_device *d = dev;
if (streq_ptr("partition", udev_device_get_devtype(d)))