return true;
}
EXPORT_SYMBOL_GPL(generic_fsdax_supported);
+
+bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
+ int blocksize, sector_t start, sector_t len)
+{
+ bool ret = false;
+ int id;
+
+ if (!dax_dev)
+ return false;
+
+ id = dax_read_lock();
+ if (dax_alive(dax_dev) && dax_dev->ops->dax_supported)
+ ret = dax_dev->ops->dax_supported(dax_dev, bdev, blocksize,
+ start, len);
+ dax_read_unlock(id);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(dax_supported);
#endif /* CONFIG_FS_DAX */
/**
}
EXPORT_SYMBOL_GPL(dax_direct_access);
-bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
- int blocksize, sector_t start, sector_t len)
-{
- bool ret = false;
- int id;
-
- if (!dax_dev)
- return false;
-
- id = dax_read_lock();
- if (dax_alive(dax_dev) && dax_dev->ops->dax_supported)
- ret = dax_dev->ops->dax_supported(dax_dev, bdev, blocksize,
- start, len);
- dax_read_unlock(id);
- return ret;
-}
-EXPORT_SYMBOL_GPL(dax_supported);
-
size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
size_t bytes, struct iov_iter *i)
{
{
__set_dax_synchronous(dax_dev);
}
-bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
- int blocksize, sector_t start, sector_t len);
/*
* Check if given mapping is supported by the file / underlying device.
*/
static inline void set_dax_synchronous(struct dax_device *dax_dev)
{
}
-static inline bool dax_supported(struct dax_device *dax_dev,
- struct block_device *bdev, int blocksize, sector_t start,
- sector_t len)
-{
- return false;
-}
static inline bool daxdev_mapping_supported(struct vm_area_struct *vma,
struct dax_device *dax_dev)
{
struct block_device *bdev, int blocksize, sector_t start,
sector_t sectors);
+bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
+ int blocksize, sector_t start, sector_t len);
+
static inline void fs_put_dax(struct dax_device *dax_dev)
{
put_dax(dax_dev);
#define generic_fsdax_supported NULL
+static inline bool dax_supported(struct dax_device *dax_dev,
+ struct block_device *bdev, int blocksize, sector_t start,
+ sector_t len)
+{
+ return false;
+}
+
static inline void fs_put_dax(struct dax_device *dax_dev)
{
}