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| author | Toshi Kani <toshi.kani@hpe.com> | 2016-06-28 13:37:16 -0600 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2016-07-20 23:49:51 -0400 |
| commit | f6e629bd2379dceb547be93915314307871a7f6c (patch) | |
| tree | 3a2ef8ed074e273c081eca2ca0adfd4bce6f561d /lib/stackdepot.c | |
| parent | beec25b4573bc310f5a12cf33207b20ecc30945c (diff) | |
| download | linux-f6e629bd2379dceb547be93915314307871a7f6c.tar.gz | |
dm snap: add fake origin_direct_access
dax-capable mapped-device is marked as DM_TYPE_DAX_BIO_BASED, which supports both dax and bio-based operations. dm-snap needs to work with dax-capable device when bio-based operation is used. Add fake origin_direct_access() to origin device so that its origin device is also marked as DM_TYPE_DAX_BIO_BASED for dax-capable device. This allows to extend target's DM table. dm-snap works normally when bio-based operation is used. dm-snap does not support dax operation, and mount with dax option to a target device or snapshot device fails. Signed-off-by: Toshi Kani <toshi.kani@hpe.com> Cc: Mike Snitzer <snitzer@redhat.com> Cc: Alasdair Kergon <agk@redhat.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'lib/stackdepot.c')
0 files changed, 0 insertions, 0 deletions