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| author |   Dan Williams <dan.j.williams@intel.com> | 2016-03-11 10:15:36 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-05-09 15:35:42 -0700 |
| commit | cd03412a51ac4cb3001a8cdfae4560c9602f3387 (patch) | |
| tree | c2d501759d7d96fab9a0f70eefba139876bb12de /drivers/nvdimm/claim.c | |
| parent | libnvdimm: cleanup nvdimm_namespace_common_probe(), kill 'host' (diff) | |
| download | linux-dev-cd03412a51ac4cb3001a8cdfae4560c9602f3387.tar.xz linux-dev-cd03412a51ac4cb3001a8cdfae4560c9602f3387.zip | |
libnvdimm, dax: introduce device-dax infrastructure
Device DAX is the device-centric analogue of Filesystem DAX
(CONFIG_FS_DAX). It allows persistent memory ranges to be allocated and
mapped without need of an intervening file system. This initial
infrastructure arranges for a libnvdimm pfn-device to be represented as
a different device-type so that it can be attached to a driver other
than the pmem driver.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/claim.c')
| -rw-r--r-- | drivers/nvdimm/claim.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c index 6bbd0a36994a..5f53db59a058 100644 --- a/drivers/nvdimm/claim.c +++ b/drivers/nvdimm/claim.c @@ -85,6 +85,8 @@ static bool is_idle(struct device *dev, struct nd_namespace_common *ndns) seed = nd_region->btt_seed; else if (is_nd_pfn(dev)) seed = nd_region->pfn_seed; + else if (is_nd_dax(dev)) + seed = nd_region->dax_seed; if (seed == dev || ndns || dev->driver) return false; |