diff options
Diffstat (limited to 'Documentation/device-mapper/thin-provisioning.txt')
| -rw-r--r-- | Documentation/device-mapper/thin-provisioning.txt | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/device-mapper/thin-provisioning.txt b/Documentation/device-mapper/thin-provisioning.txt index 310c1201d621..3370bc4d7b98 100644 --- a/Documentation/device-mapper/thin-provisioning.txt +++ b/Documentation/device-mapper/thin-provisioning.txt @@ -223,7 +223,13 @@ i) Constructor <low water mark (blocks)> [<number of feature args> [<arg>]*] Optional feature arguments: - - 'skip_block_zeroing': skips the zeroing of newly-provisioned blocks. + + skip_block_zeroing: Skip the zeroing of newly-provisioned blocks. + + ignore_discard: Disable discard support. + + no_discard_passdown: Don't pass discards down to the underlying + data device, but just remove the mapping. Data block size must be between 64KB (128 sectors) and 1GB (2097152 sectors) inclusive. |