Jonathan Brassow 96626f64fa cache: Code to allow the create/remove of cache LVs ... This patch allows users to create cache LVs with 'lvcreate'. An origin or a cache pool LV must be created first. Then, while supplying the origin or cache pool to the lvcreate command, the cache can be created. Ex1: Here the cache pool is created first, followed by the origin which will be cached. ~> lvcreate --type cache_pool -L 500M -n cachepool vg /dev/small_n_fast ~> lvcreate --type cache -L 1G -n lv vg/cachepool /dev/large_n_slow Ex2: Here the origin is created first, followed by the cache pool - allowing a cache LV to be created covering the origin. ~> lvcreate -L 1G -n lv vg /dev/large_n_slow ~> lvcreate --type cache -L 500M -n cachepool vg/lv /dev/small_n_fast The code determines which type of LV was supplied (cache pool or origin) by checking its type. It ensures the right argument was given by ensuring that the origin is larger than the cache pool. If the user wants to remove just the cache for an LV. They specify the LV's associated cache pool when removing: ~> lvremove vg/cachepool If the user wishes to remove the origin, but leave the cachepool to be used for another LV, they specify the cache LV. ~> lvremove vg/lv In order to remove it all, specify both LVs. This patch also includes tests to create and remove cache pools and cache LVs.		2014-02-04 16:50:16 -06:00
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activate	cache: Code to allow the create/remove of cache LVs	2014-02-04 16:50:16 -06:00
cache	lvmetad: respect LVM_LVMETAD_PIDFILE settings in lvm	2014-01-24 15:59:38 +01:00
cache_segtype	cleanup: fix cut&paste and move initialization	2014-01-29 09:00:16 +01:00
commands	cache: New 'cachepool' segment type	2014-01-27 05:27:16 -06:00
config	cache: Code changes to allow creation of cache pools	2014-02-04 11:57:08 -06:00
datastruct	cleanup: self compilable headers	2013-12-12 13:28:19 +01:00
device	devices: support zvol	2014-01-28 10:33:29 +01:00
display	tools: Add internal tags command.	2014-01-30 13:09:15 +00:00
error	cleanup: drop unneeded included header files	2012-08-23 14:37:20 +02:00
filters	filters: drop extra slash from sysfs path	2013-11-22 20:53:31 +01:00
format1	format1: Mark obsolete and do not use with lvmetad.	2014-01-14 03:27:45 +00:00
format_pool	pvscan: use format feature flags in lvmetad code	2014-01-08 02:13:13 +00:00
format_text	cache: Code changes to allow creation of cache pools	2014-02-04 11:57:08 -06:00
freeseg	cleanup: drop unneeded included header files	2012-08-23 14:37:20 +02:00
label	cleanup: add missing backtrace in fail path	2013-12-12 13:29:59 +01:00
locking	locking: avoid dropping locks	2014-01-27 12:13:29 +01:00
log	cleanup: simplify logging code	2013-12-12 13:27:59 +01:00
metadata	cache: Code to allow the create/remove of cache LVs	2014-02-04 16:50:16 -06:00
mirror	config: add profile arg to find_config_tree_str	2013-07-02 15:19:09 +02:00
misc	cache: New 'cachepool' segment type	2014-01-27 05:27:16 -06:00
mm	gcc: replace #ifdef linux with __linux__	2013-11-13 13:56:29 +00:00
properties	lvm2app: Add thin and thin pool lv creation	2013-07-12 16:52:16 -05:00
raid	cleanup: shorter raid initialization	2013-12-10 11:16:51 +01:00
replicator	cleanup: drop unneeded included header files	2012-08-23 14:37:20 +02:00
report	compilation: Rename tags variables to tagsl.	2014-01-30 21:09:28 +00:00
snapshot	snapshot: rework parsing of snapshot metadata	2013-10-14 00:26:58 +02:00
striped	Add activation/use_linear_target enabled by default. (prajnoha)	2011-11-28 20:37:51 +00:00
thin	thin: validate external origin size	2014-01-29 14:58:13 +01:00
unknown	cleanup: drop unneeded included header files	2012-08-23 14:37:20 +02:00
uuid	cleanup: self compilable headers	2013-12-12 13:28:19 +01:00
zero	cleanup: drop unneeded included header files	2012-08-23 14:37:20 +02:00
Makefile.in	cache: Add functions that create/remove cache LVs	2014-02-04 07:59:58 -06:00