This patch series enables device mapper (dm) to send kobject uevents for dm events. Currently only two new events are sent related to path state changes. A previous patch was posted to send these events out over netlink. It was suggested that the events could be sent using kboject_uevent which lead to the creation of this patch. The previous posts can be found in this list archive http://thread.gmane.org/gmane.linux.kernel.device-mapper.devel/3588 This patch leaves the existing dm ioctl event interface in place and allows user to pickup the new events when available. This would allow tools that are already processing uevents to pick up the context of the path events with a small addition to existing processing code. This patch series against linux-2.6.23-rc2-mm2 contains the following: - Add dm uevent skeleton. - Add support for the event functions. - Add event calls for failed and reinstated paths. An example of the uevents generated as captured by udevmonitor is shown below. 1.) Path failure. UEVENT[1187096865.290808] change@/block/dm-0 ACTION=change DEVPATH=/block/dm-0 SUBSYSTEM=block DM_ACTION=PATH_FAILED DM_SEQNUM=1 DM_PATH=8:48 DM_PATHS=1 SEQNUM=1774 MINOR=0 MAJOR=0 2.) Path reinstate. UEVENT[1187097039.466958] change@/block/dm-0 ACTION=change DEVPATH=/block/dm-0 SUBSYSTEM=block DM_ACTION=PATH_REINSTATED DM_SEQNUM=2 DM_PATH=8:48 DM_PATHS=2 SEQNUM=1775 MINOR=0 MAJOR=0 -andmike -- Michael Anderson andmike@xxxxxxxxxx -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
