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authorDan Williams <dan.j.williams@intel.com>2017-05-04 23:38:43 -0700
committerDan Williams <dan.j.williams@intel.com>2017-05-04 23:38:43 -0700
commit736163671bcb163fc82600b46c83dfa89d532d95 (patch)
tree0639dc9d9fa180450b4e8fbda706eaae5f1876da /include/linux/device-mapper.h
parentd5483feda85a8f39ee2e940e279547c686aac30c (diff)
parent1ef97fe4f8abd3317d5c3c860f990e02c2633959 (diff)
downloadop-kernel-dev-736163671bcb163fc82600b46c83dfa89d532d95.zip
op-kernel-dev-736163671bcb163fc82600b46c83dfa89d532d95.tar.gz
Merge branch 'for-4.12/dax' into libnvdimm-for-next
Diffstat (limited to 'include/linux/device-mapper.h')
-rw-r--r--include/linux/device-mapper.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index a7e6903..df830d1 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -128,13 +128,15 @@ typedef int (*dm_busy_fn) (struct dm_target *ti);
* < 0 : error
* >= 0 : the number of bytes accessible at the address
*/
-typedef long (*dm_direct_access_fn) (struct dm_target *ti, sector_t sector,
- void **kaddr, pfn_t *pfn, long size);
+typedef long (*dm_dax_direct_access_fn) (struct dm_target *ti, pgoff_t pgoff,
+ long nr_pages, void **kaddr, pfn_t *pfn);
+#define PAGE_SECTORS (PAGE_SIZE / 512)
void dm_error(const char *message);
struct dm_dev {
struct block_device *bdev;
+ struct dax_device *dax_dev;
fmode_t mode;
char name[16];
};
@@ -176,7 +178,7 @@ struct target_type {
dm_busy_fn busy;
dm_iterate_devices_fn iterate_devices;
dm_io_hints_fn io_hints;
- dm_direct_access_fn direct_access;
+ dm_dax_direct_access_fn direct_access;
/* For internal device-mapper use. */
struct list_head list;
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