dax: Get rid of fs_dax_get_by_host() helper

Looks like nobody is using fs_dax_get_by_host() except fs_dax_get_by_bdev()
and it can easily use dax_get_by_host() instead.

IIUC, fs_dax_get_by_host() was only introduced so that one could compile
with CONFIG_FS_DAX=n and CONFIG_DAX=m. fs_dax_get_by_bdev() achieves
the same purpose and hence it looks like fs_dax_get_by_host() is not
needed anymore.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20200106181117.GA16248@redhat.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index 26a654d..0aa4b6b 100644 (file)
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -61,7 +61,7 @@ struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev)
 {
        if (!blk_queue_dax(bdev->bd_queue))
                return NULL;
-       return fs_dax_get_by_host(bdev->bd_disk->disk_name);
+       return dax_get_by_host(bdev->bd_disk->disk_name);
 }
 EXPORT_SYMBOL_GPL(fs_dax_get_by_bdev);
 #endif

diff --git a/include/linux/dax.h b/include/linux/dax.h
index d5932e4..328c2db 100644 (file)
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -129,11 +129,6 @@ static inline bool generic_fsdax_supported(struct dax_device *dax_dev,
                        sectors);
 }
 
-static inline struct dax_device *fs_dax_get_by_host(const char *host)
-{
-       return dax_get_by_host(host);
-}
-
 static inline void fs_put_dax(struct dax_device *dax_dev)
 {
        put_dax(dax_dev);
@@ -160,11 +155,6 @@ static inline bool generic_fsdax_supported(struct dax_device *dax_dev,
        return false;
 }
 
-static inline struct dax_device *fs_dax_get_by_host(const char *host)
-{
-       return NULL;
-}
-
 static inline void fs_put_dax(struct dax_device *dax_dev)
 {
 }