fs/fuse: Remove unneeded kaddr parameter

fuse_dax_mem_range_init() does not need the address or the pfn of the
memory requested in dax_direct_access().  It is only calling direct
access to get the number of pages.

Remove the unused variables and stop requesting the kaddr and pfn from
dax_direct_access().

Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
Link: https://lore.kernel.org/r/20210525172428.3634316-2-ira.weiny@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/fs/fuse/dax.c b/fs/fuse/dax.c
index ff99ab2..34f8a56 100644 (file)
--- a/fs/fuse/dax.c
+++ b/fs/fuse/dax.c
@@ -1234,8 +1234,6 @@ void fuse_dax_conn_free(struct fuse_conn *fc)
 static int fuse_dax_mem_range_init(struct fuse_conn_dax *fcd)
 {
        long nr_pages, nr_ranges;
-       void *kaddr;
-       pfn_t pfn;
        struct fuse_dax_mapping *range;
        int ret, id;
        size_t dax_size = -1;
@@ -1247,8 +1245,8 @@ static int fuse_dax_mem_range_init(struct fuse_conn_dax *fcd)
        INIT_DELAYED_WORK(&fcd->free_work, fuse_dax_free_mem_worker);
 
        id = dax_read_lock();
-       nr_pages = dax_direct_access(fcd->dev, 0, PHYS_PFN(dax_size), &kaddr,
-                                    &pfn);
+       nr_pages = dax_direct_access(fcd->dev, 0, PHYS_PFN(dax_size), NULL,
+                                    NULL);
        dax_read_unlock(id);
        if (nr_pages < 0) {
                pr_debug("dax_direct_access() returned %ld\n", nr_pages);