On 05/08/2015 06:03 PM, Brassow Jonathan wrote:
On Apr 29, 2015, at 7:03 AM, heinzm@xxxxxxxxxx wrote:
From: Heinz Mauelshagen <heinzm@xxxxxxxxxx>
This patch adds version history for md raid0 to dm-raid.txt
_and_
adds forgotten doc for the 1.6.0 version change as well
Signed-off-by: Heinz Mauelshagen <heinzm@xxxxxxxxxx>
---
Documentation/device-mapper/dm-raid.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt
index ef8ba9f..bceb865 100644
--- a/Documentation/device-mapper/dm-raid.txt
+++ b/Documentation/device-mapper/dm-raid.txt
@@ -224,3 +224,6 @@ Version History
New status (STATUSTYPE_INFO) fields: sync_action and mismatch_cnt.
1.5.1 Add ability to restore transiently failed devices on resume.
1.5.2 'mismatch_cnt' is zero unless [last_]sync_action is "check".
+1.6.0 Add devices_handle_discards_safely module parameter to
+ allow discards on disks announcing uncertain discard_zeroes_data
+1.7.0 Add support for MD RAID0 mappings
--
2.1.0
I was hoping for a new section(e.g. “DISCARDS”) to be added to the doc file for the ‘devices_handle_discards_safely’.
Wasn’t 1.6.0 where discard support was added? If so, 1.6.0 should just be “Add discard support”. The new section should explain all the short-comings and issues with discards + parity RAID.
brassow
Yes, 1.6.0 added discard support for raid1/10 and disabled it for raid4/5/6
with commit upstream 75b8e04bbf01bdd5c42a1d8ac54abf757196ce49
Let's add more docuemtnation with a followup patch then
Heinz
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