diff options
| author |   Mike Snitzer <snitzer@redhat.com> | 2012-12-21 20:23:30 +0000 |
|---|---|---|
| committer |   Alasdair G Kergon <agk@redhat.com> | 2012-12-21 20:23:30 +0000 |
| commit | c1a94672a830e01d58c7c7e8de530c3f136d6ff2 (patch) | |
| tree | 00f9fa087a3bbae3fe55bda80f6b222512eea51a /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | dm ioctl: prevent unsafe change to dm_ioctl data_size (diff) | |
| download | linux-dev-c1a94672a830e01d58c7c7e8de530c3f136d6ff2.tar.xz linux-dev-c1a94672a830e01d58c7c7e8de530c3f136d6ff2.zip | |
dm: disable WRITE SAME
WRITE SAME bios are not yet handled correctly by device-mapper so
disable their use on device-mapper devices by setting
max_write_same_sectors to zero.
As an example, a ciphertext device is incompatible because the data
gets changed according to the location at which it written and so the
dm crypt target cannot support it.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
Cc: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions