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-rw-r--r--Documentation/device-mapper/thin-provisioning.txt10
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diff --git a/Documentation/device-mapper/thin-provisioning.txt b/Documentation/device-mapper/thin-provisioning.txt
index 1ff044d87ca4..da50347c0053 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
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