This is a note to let you know that I've just added the patch titled xfs: fix unaligned access in xfs_btree_visit_blocks to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: xfs-fix-unaligned-access-in-xfs_btree_visit_blocks.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From a4d768e702de224cc85e0c8eac9311763403b368 Mon Sep 17 00:00:00 2001 From: Eric Sandeen <sandeen@xxxxxxxxxxx> Date: Mon, 22 May 2017 19:54:10 -0700 Subject: xfs: fix unaligned access in xfs_btree_visit_blocks From: Eric Sandeen <sandeen@xxxxxxxxxxx> 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 <sandeen@xxxxxxxxxx> Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/xfs/libxfs/xfs_btree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -4051,7 +4051,7 @@ xfs_btree_change_owner( 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 */ Patches currently in stable-queue which might be from sandeen@xxxxxxxxxxx are queue-3.18/xfs-fix-unaligned-access-in-xfs_btree_visit_blocks.patch