From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bombadil.infradead.org ([65.50.211.133]:39695 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751272AbdFCNTp (ORCPT ); Sat, 3 Jun 2017 09:19:45 -0400 From: Christoph Hellwig Subject: [PATCH 22/25] xfs: fix unaligned access in xfs_btree_visit_blocks Date: Sat, 3 Jun 2017 15:18:33 +0200 Message-Id: <20170603131836.26661-23-hch@lst.de> In-Reply-To: <20170603131836.26661-1-hch@lst.de> References: <20170603131836.26661-1-hch@lst.de> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: stable@vger.kernel.org Cc: linux-xfs@vger.kernel.org, Eric Sandeen , Eric Sandeen , "Darrick J . Wong" From: Eric Sandeen commit a4d768e702de224cc85e0c8eac9311763403b368 upstream. This structure copy was throwing unaligned access warnings on sparc64: Kernel unaligned access at TPC[1043c088] xfs_btree_visit_blocks+0x88/0xe0 [xfs] xfs_btree_copy_ptrs does a memcpy, which avoids it. Signed-off-by: Eric Sandeen Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_btree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 2849d3fa3d0b..91c68913d495 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -4376,7 +4376,7 @@ xfs_btree_visit_blocks( xfs_btree_readahead_ptr(cur, ptr, 1); /* save for the next iteration of the loop */ - lptr = *ptr; + xfs_btree_copy_ptrs(cur, &lptr, ptr, 1); } /* for each buffer in the level */ -- 2.11.0