Merge user/mitchelllevy/fix/fuse-hang/6.6 into v6.6.123

* commit 'a9e0ea320730017f820644deda4040d0da91bb02':
  fuse: mark DAX inode releases as blocking

Author: chessturo

fs/fuse/file.c

@@ -120,6 +120,12 @@ static void fuse_file_put(struct fuse_file *ff, bool sync)
 			fuse_simple_request(ff->fm, args);
 			fuse_release_end(ff->fm, args, 0);
 		} else {
+			/*
+			 * DAX inodes may need to issue a number of synchronous
+			 * request for clearing the mappings.
+			 */
+			if (ra && ra->inode && FUSE_IS_DAX(ra->inode))
+				args->may_block = true;
 			args->end = fuse_release_end;
 			if (fuse_simple_background(ff->fm, args,
 						   GFP_KERNEL | __GFP_NOFAIL))