Peter Rajnoha c0e17bca90 dev_manager: do not mark snapshot origins as unusable devices just because of possible blocked mirror underneath ... At first, all snapshot-origins where marked as unusable unconditionally here, but we can't cut off whole snapshot-origin use in a stack just because of this possible mirror state. This whole "device_is_usable" check was even incorrectly part of persistent filter before commit a843d0d97c66aae1872c05b0f6cf4bda176aae2 (where filter cleanup was done). The persistent filter is used only if obtain_device_list_from_udev=0, which means that the former check for snapshot-origin here had not even been hit with default configuration for a few years before commit a843d0d97c66aae1872c05b0f6cf4bda176aae2 (the check for snapshot-origin and skipping of this LV was introduced with commit a71d6051ed back in 2010). The obtain_device_list_from_udev=1 (and hence not using persistent filter and hence not hitting this check for snapshot-origins and skipping) has been in action since commit edcda01a1e (that is 2011). So for 3 years this condition was not even checked with default configuration, making it superfluous. This all changed in 2014 with commit 8a843d0d97 where "filter-usable" is introduced and since then all snapshot-origins have been marked as unusable more often than before and making snapshot-origins practically unusable in a stack. This patch removes this incorrect check from commit a71d6051ed which caused snapshot-origins to be unusable more often recently. If we want to fix this eventually in a correct way, we need to look down the stack and if snapshot-origin is hit and there's a blocked mirror underneath, only then mark the device as unusable. But mirrors in stack are not supported anymore so it's questionable whether it's worth spending more time on this at all...		2015-01-09 11:24:16 +01:00
..
activate.c	cmirror: check for cmirror availability during cluster mirror creation and activation	2015-01-05 16:54:07 +01:00
activate.h	cleanup: cleanup internal interface to acquire segment status	2014-11-13 14:28:51 +01:00
dev_manager.c	dev_manager: do not mark snapshot origins as unusable devices just because of possible blocked mirror underneath	2015-01-09 11:24:16 +01:00
dev_manager.h	dev_manager: enhance dev_manager_info to acquire LV segment status if requested, add lv_info_with_seg_status fn	2014-11-11 13:04:02 +01:00
fs.c	cleanup: constify activation usage of lv pointer	2014-09-24 10:54:47 +02:00
fs.h	cleanup: constify activation usage of lv pointer	2014-09-24 10:54:47 +02:00
targets.h	Use UUIDs instead of names while processing event handlers.	2010-04-14 13:01:38 +00:00