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commitf6b50160a0upstream. __GFP_HIGHMEM is disabled if dax is enabled on brd, however dax support for brd has been removed since commit (7a862fbbde"brd: remove dax support"), so restore __GFP_HIGHMEM in brd_insert_page(). Also remove the no longer applicable comments about DAX and highmem. Cc: stable@vger.kernel.org Fixes:7a862fbbde("brd: remove dax support") Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>