| commit | 50109b5a03b4024eb6b8df3ab8f427625f54fe92 | [log] [tgz] |
|---|---|---|
| author | Anton Ivanov <anton.ivanov@cambridgegreys.com> | Wed Nov 14 18:41:09 2018 +0000 |
| committer | Richard Weinberger <richard@nod.at> | Thu Dec 27 22:48:20 2018 +0100 |
| tree | 763dffe32e8a11bf9c6ac69bbf4a45cbc8e1ebff | |
| parent | a41421edb926fcc8f212742b2e7a1f21c9047853 [diff] |
um: Add support for DISCARD in the UBD Driver Support for DISCARD and WRITE_ZEROES in the ubd driver using fallocate. DISCARD is enabled by default and can be disabled using a new UBD command line flag. If the underlying fs on which the UBD image is stored does not support DISCARD the support for both DISCARD and WRITE_ZEROES is turned off. Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com> Signed-off-by: Richard Weinberger <richard@nod.at>