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| author | Joe Thornber <ejt@redhat.com> | 2012-03-28 18:41:24 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2012-03-28 18:41:24 +0100 |
| commit | fe878f34df89ad4af758f40bbec829807dc93a00 (patch) | |
| tree | eaa377c640fd595391491725ab477f29062374b1 /Documentation/device-mapper/thin-provisioning.txt | |
| parent | 035220b33d6865d81d5433600def53373cca7127 (diff) | |
| download | op-kernel-dev-fe878f34df89ad4af758f40bbec829807dc93a00.zip op-kernel-dev-fe878f34df89ad4af758f40bbec829807dc93a00.tar.gz | |
dm thin: correct comments
Remove documentation for unimplemented 'trim' message.
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@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'Documentation/device-mapper/thin-provisioning.txt')
| -rw-r--r-- | 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 1ff044d..da50347 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 |
