From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933144AbdJaX2m (ORCPT ); Tue, 31 Oct 2017 19:28:42 -0400 Received: from mga06.intel.com ([134.134.136.31]:10542 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932449AbdJaX2i (ORCPT ); Tue, 31 Oct 2017 19:28:38 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,326,1505804400"; d="scan'208";a="167581418" Subject: [PATCH 07/15] dax: stop requiring a live device for dax_flush() From: Dan Williams To: linux-nvdimm@lists.01.org Cc: linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, akpm@linux-foundation.org, hch@lst.de Date: Tue, 31 Oct 2017 16:22:13 -0700 Message-ID: <150949213329.24061.13836721890938350458.stgit@dwillia2-desk3.amr.corp.intel.com> In-Reply-To: <150949209290.24061.6283157778959640151.stgit@dwillia2-desk3.amr.corp.intel.com> References: <150949209290.24061.6283157778959640151.stgit@dwillia2-desk3.amr.corp.intel.com> User-Agent: StGit/0.17.1-9-g687f MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Now that dax_flush() is no longer a driver callback (commit c3ca015fab6d "dax: remove the pmem_dax_ops->flush abstraction"), stop requiring the dax_read_lock() to be held and the device to be alive. This is in preparation for switching filesystem-dax to store pfns instead of sectors in the radix. Signed-off-by: Dan Williams --- drivers/dax/super.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/dax/super.c b/drivers/dax/super.c index 66bcdf42c413..abfd4e92d669 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -283,9 +283,6 @@ EXPORT_SYMBOL_GPL(dax_copy_from_iter); void arch_wb_cache_pmem(void *addr, size_t size); void dax_flush(struct dax_device *dax_dev, void *addr, size_t size) { - if (unlikely(!dax_alive(dax_dev))) - return; - if (unlikely(!test_bit(DAXDEV_WRITE_CACHE, &dax_dev->flags))) return;