Mike Snitzer b0d3cc011e dm snapshot: add new persistent store option to support overflow ...

Commit 76c44f6d80 introduced the possibly for "Overflow" to be reported
by the snapshot device's status.  Older userspace (e.g. lvm2) does not
handle the "Overflow" status response.

Fix this incompatibility by requiring newer userspace code, that can
cope with "Overflow", request the persistent store with overflow support
by using "PO" (Persistent with Overflow) for the snapshot store type.

Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Fixes: 76c44f6d80 ("dm snapshot: don't invalidate on-disk image on snapshot write overflow")
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

2015-10-09 16:57:03 -04:00

..

cache-policies.txt

dm cache: switch the "default" cache replacement policy from mq to smq

2015-06-17 12:40:38 -04:00

cache.txt

dm cache: display 'needs_check' in status if it is set

2015-07-16 10:23:50 -04:00

delay.txt

dm: delay target

2007-05-09 12:30:47 -07:00

dm-crypt.txt

dm crypt: update URLs to new cryptsetup project page

2015-04-15 12:10:24 -04:00

dm-flakey.txt

dm flakey: add corrupt_bio_byte feature

2011-08-02 12:32:06 +01:00

dm-io.txt

…

dm-log.txt

dm log userspace: fix comment hyphens

2011-10-31 20:21:22 +00:00

dm-queue-length.txt

dm mpath: add queue length load balancer

2009-06-22 10:12:27 +01:00

dm-raid.txt

dm raid: document RAID 4/5/6 discard support

2015-08-31 15:05:31 -04:00

dm-service-time.txt

Fix common misspellings

2011-03-31 11:26:23 -03:00

dm-uevent.txt

dm: uevent generate events

2007-10-20 02:01:26 +01:00

era.txt

dm: add era target

2014-03-27 16:56:23 -04:00

kcopyd.txt

…

linear.txt

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log-writes.txt

dm: add log writes target

2015-04-15 12:10:24 -04:00

persistent-data.txt

Documentation: Fix multiple typo in Documentation

2012-03-07 16:08:24 +01:00

snapshot.txt

dm snapshot: add new persistent store option to support overflow

2015-10-09 16:57:03 -04:00

statistics.txt

dm stats: report precise_timestamps and histogram in @stats_list output

2015-08-18 17:20:03 -04:00

striped.txt

dm stripe: support for non power of 2 chunksize

2012-07-27 15:08:01 +01:00

switch.txt

dm switch: fix Documentation to use plain text

2015-03-31 12:03:49 -04:00

thin-provisioning.txt

dm thin: display 'needs_check' in status if it is set

2015-07-16 10:23:50 -04:00

verity.txt

dm crypt: update URLs to new cryptsetup project page

2015-04-15 12:10:24 -04:00

zero.txt

…