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Version 2 of the userspace log protocol accepts return information during the DM_ULOG_CTR exchange. The return information contains the name of the log device that is being used (if there is one). The kernel can then register the device via 'dm_get_device'. Amoung other things, this allows for userspace to assemble a correct dependency tree of devices - critical for LVM handling of suspend/resume calls. Also, update dm-log-userspace.h to match the kernel header associated with this protocol change. (Includes a version inc.) |
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dm-ioctl.h | ||
dm-log-userspace.h | ||
dm-logging.h | ||
dmlib.h | ||
kdev_t.h |