diff options
| author | Christoph Hellwig | 2019-06-26 14:27:07 +0200 |
|---|---|---|
| committer | Jason Gunthorpe | 2019-07-02 14:32:44 -0300 |
| commit | 3ed2dcdf54d5bf1f9823b5faf1a702e7cee53982 (patch) | |
| tree | f025d9105611d1c4d90d3265176e79a71d1b83a8 /drivers/dax | |
| parent | 0092908d16c604b8207c2141ec64b0fa4473bb03 (diff) | |
memremap: validate the pagemap type passed to devm_memremap_pages
Most pgmap types are only supported when certain config options are
enabled. Check for a type that is valid for the current configuration
before setting up the pagemap. For this the usage of the 0 type for
device dax gets replaced with an explicit MEMORY_DEVICE_DEVDAX type.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/dax')
| -rw-r--r-- | drivers/dax/device.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dax/device.c b/drivers/dax/device.c index 8465d12fecba..79014baa782d 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -468,6 +468,7 @@ int dev_dax_probe(struct device *dev) dev_dax->pgmap.ref = &dev_dax->ref; dev_dax->pgmap.kill = dev_dax_percpu_kill; dev_dax->pgmap.cleanup = dev_dax_percpu_exit; + dev_dax->pgmap.type = MEMORY_DEVICE_DEVDAX; addr = devm_memremap_pages(dev, &dev_dax->pgmap); if (IS_ERR(addr)) return PTR_ERR(addr); |