[dm-devel] [PATCH 02/14] dm-thin: remove some documentation for the unimplemented 'trim' target message

[Joe Thornber]

I'd planned a 'trim' target message for shrinking thin devices, but
this is better handled via the discard ioctl.

Signed-off-by: Joe Thornber <ejt at redhat.com>
Signed-off-by: Mike Snitzer <snitzer at redhat.com>
---
 Documentation/device-mapper/thin-provisioning.txt |   10 ----------
 1 files changed, 0 insertions(+), 10 deletions(-)

diff --git a/Documentation/device-mapper/thin-provisioning.txt b/Documentation/device-mapper/thin-provisioning.txt
index 801d9d1..981aebb 100644
--- a/Documentation/device-mapper/thin-provisioning.txt
+++ b/Documentation/device-mapper/thin-provisioning.txt
@@ -237,16 +237,6 @@ iii) Messages
 
 	Deletes a thin device.  Irreversible.
 
-    trim <dev id> <new size in sectors>
-
-	Delete mappings from the end of a thin device.  Irreversible.
-	You might want to use this if you're reducing the size of
-	your thinly-provisioned device.  In many cases, due to the
-	sharing of blocks between devices, it is not possible to
-	determine in advance how much space 'trim' will release.  (In
-	future a userspace tool might be able to perform this
-	calculation.)
-
     set_transaction_id <current id> <new id>
 
 	Userland volume managers, such as LVM, need a way to
-- 
1.7.9.1