lkml.org 
[lkml]   [2015]   [Jun]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [PATCH 14/15] libnvdimm: support read-only btt backing devices
    From
    Date
    On Wed, 2015-06-17 at 19:56 -0400, Dan Williams wrote:
    > Upon detection of a read-only backing device arrange for the btt to
    > device to be read only. Implement a catch for the BLKROSET ioctl and
    > only allow a btt-instance to become read-write when the backing-device
    > becomes read-write. Conversely, if a backing-device becomes read-only
    > arrange for its parent btt to be marked read-only. Synchronize these
    > changes under the bus lock.
    >
    > Signed-off-by: Dan Williams <dan.j.williams@intel.com>
    > ---
    > drivers/nvdimm/blk.c | 4 +++
    > drivers/nvdimm/btt.c | 34 ++++++++++++++++++++++++++--
    > drivers/nvdimm/btt_devs.c | 42 ++++++++++++++++++++++++++++++++++
    > drivers/nvdimm/bus.c | 55 +++++++++++++++++++++++++++++++++++++++++++++
    > drivers/nvdimm/nd-core.h | 14 +++++++++++
    > drivers/nvdimm/nd.h | 4 +++
    > drivers/nvdimm/pmem.c | 4 +++
    > 7 files changed, 154 insertions(+), 3 deletions(-)

    Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>




    \
     
     \ /
      Last update: 2015-06-19 01:21    [W:4.143 / U:0.444 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site