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pmem: add dax_operations support

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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 <[email protected]>
This commit is contained in:
Dan Williams 2017-01-24 23:02:09 -08:00
commit c1d6e828a3
6 changed files with 70 additions and 33 deletions
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7
drivers/dax/dax.h
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@ -13,13 +13,6 @@
#ifndef __DAX_H__
#define __DAX_H__
struct dax_device;
struct dax_operations;
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);
struct dax_device *inode_dax(struct inode *inode);
struct inode *dax_inode(struct dax_device *dax_dev);
void *dax_get_private(struct dax_device *dax_dev);
#endif /* __DAX_H__ */