fuse: drop unused fuse_mount arg in fuse_writepage_finish()

Drop the unused "struct fuse_mount *fm" arg in
fuse_writepage_finish().

No functional changes added.
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

fs/fuse/file.c

@@ -1769,8 +1769,7 @@ static void fuse_writepage_free(struct fuse_writepage_args *wpa)
 	kfree(wpa);
 }
 
-static void fuse_writepage_finish(struct fuse_mount *fm,
-				  struct fuse_writepage_args *wpa)
+static void fuse_writepage_finish(struct fuse_writepage_args *wpa)
 {
 	struct fuse_args_pages *ap = &wpa->ia.ap;
 	struct inode *inode = wpa->inode;
@@ -1829,7 +1828,7 @@ __acquires(fi->lock)
  out_free:
 	fi->writectr--;
 	rb_erase(&wpa->writepages_entry, &fi->writepages);
-	fuse_writepage_finish(fm, wpa);
+	fuse_writepage_finish(wpa);
 	spin_unlock(&fi->lock);
 
 	/* After rb_erase() aux request list is private */
@@ -1965,7 +1964,7 @@ static void fuse_writepage_end(struct fuse_mount *fm, struct fuse_args *args,
 		fuse_send_writepage(fm, next, inarg->offset + inarg->size);
 	}
 	fi->writectr--;
-	fuse_writepage_finish(fm, wpa);
+	fuse_writepage_finish(wpa);
 	spin_unlock(&fi->lock);
 	fuse_writepage_free(wpa);
 }