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authorDan Williams <dan.j.williams@intel.com>2016-07-24 21:55:45 -0700
committerDan Williams <dan.j.williams@intel.com>2016-08-23 22:58:51 -0700
commit3bc52c45bac26bf7ed1dc8d287ad1aeaed1250b6 (patch)
tree3ac261a353583b2490ce2b65a4da4941085308ea /include/uapi/linux
parentba09c01d2fa866f22e42ac2af405fe386f491879 (diff)
dax: define a unified inode/address_space for device-dax mappings
In support of enabling resize / truncate of device-dax instances, define a pseudo-fs to provide a unified inode/address space for vm operations. Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/uapi/linux')
-rw-r--r--include/uapi/linux/magic.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index e398beac67b8..9bd559472c92 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -65,6 +65,7 @@
#define V9FS_MAGIC 0x01021997
#define BDEVFS_MAGIC 0x62646576
+#define DAXFS_MAGIC 0x64646178
#define BINFMTFS_MAGIC 0x42494e4d
#define DEVPTS_SUPER_MAGIC 0x1cd1
#define FUTEXFS_SUPER_MAGIC 0xBAD1DEA