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| author |   Dan Williams <dan.j.williams@intel.com> | 2017-01-24 23:02:09 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-04-19 15:14:35 -0700 |
| commit | c1d6e828a35df524df2af277eedd1471d05e4f4c (patch) | |
| tree | e0e22fcca09c7b5bb9d1c74d9e0b48da11bae8a7 /include/linux/dax.h | |
| parent | dax: introduce dax_operations (diff) | |
| download | wireguard-linux-c1d6e828a35df524df2af277eedd1471d05e4f4c.tar.xz wireguard-linux-c1d6e828a35df524df2af277eedd1471d05e4f4c.zip | |
pmem: add dax_operations support
Setup a dax_device to have the same lifetime as the pmem block device
and add a ->direct_access() method that is equivalent to
pmem_direct_access(). Once fs/dax.c has been converted to use
dax_operations the old pmem_direct_access() will be removed.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/linux/dax.h')
| -rw-r--r-- | include/linux/dax.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h index 74ebb92b625a..39a0312c45c3 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -21,6 +21,12 @@ struct dax_operations { int dax_read_lock(void); void dax_read_unlock(int id); struct dax_device *dax_get_by_host(const char *host); +struct dax_device *alloc_dax(void *private, const char *host, + const struct dax_operations *ops); +void put_dax(struct dax_device *dax_dev); +bool dax_alive(struct dax_device *dax_dev); +void kill_dax(struct dax_device *dax_dev); +void *dax_get_private(struct dax_device *dax_dev); /* * We use lowest available bit in exceptional entry for locking, one bit for |