ceph-volume: enable device discards

When using SSDs as encrypted OSD device, discards do not pass the
encryption layer. This option activates discard requests.

Signed-off-by: Jonas Jelten <jj@stusta.net>

diff --git a/src/ceph-volume/ceph_volume/util/encryption.py b/src/ceph-volume/ceph_volume/util/encryption.py
index 90a4d1dada4e75cbe2a0edf495723b7bf766dc1d..6632e2b60158116f282819996df03040ae0f93ed 100644 (file)
--- a/src/ceph-volume/ceph_volume/util/encryption.py
+++ b/src/ceph-volume/ceph_volume/util/encryption.py
@@ -60,6 +60,7 @@ def plain_open(key, device, mapping):
         'cryptsetup',
         '--key-file',
         '-',
+        '--allow-discards',  # allow discards (aka TRIM) requests for device
         'open',
         device,
         mapping,
@@ -84,6 +85,7 @@ def luks_open(key, device, mapping):
         'cryptsetup',
         '--key-file',
         '-',
+        '--allow-discards',  # allow discards (aka TRIM) requests for device
         'luksOpen',
         device,
         mapping,