From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:48490 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S941144AbcJZIRw (ORCPT ); Wed, 26 Oct 2016 04:17:52 -0400 Subject: Patch "pnfs/blocklayout: fix last_write_offset incorrectly set to page boundary" has been added to the 4.8-stable tree To: bcodding@redhat.com, Anna.Schumaker@Netapp.com, gregkh@linuxfoundation.org, hch@lst.de Cc: , From: Date: Wed, 26 Oct 2016 10:16:22 +0200 Message-ID: <1477469782182125@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled pnfs/blocklayout: fix last_write_offset incorrectly set to page boundary to the 4.8-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: pnfs-blocklayout-fix-last_write_offset-incorrectly-set-to-page-boundary.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From a3f9d1b58a9ffce011ef4f074bfa36ae30eade28 Mon Sep 17 00:00:00 2001 From: Benjamin Coddington Date: Tue, 11 Oct 2016 15:53:21 -0400 Subject: pnfs/blocklayout: fix last_write_offset incorrectly set to page boundary From: Benjamin Coddington commit a3f9d1b58a9ffce011ef4f074bfa36ae30eade28 upstream. Commit 41963c10c47a35185e68cb9049f7a3493c94d2d7 sets the block layout's last written byte to the offset of the end of the extent rather than the end of the write which incorrectly updates the inode's size for partial-page writes. Fixes: 41963c10c47a ("pnfs/blocklayout: update last_write_offset atomically with extents") Signed-off-by: Benjamin Coddington Reviewed-by: Christoph Hellwig Tested-by: Christoph Hellwig Signed-off-by: Anna Schumaker Signed-off-by: Greg Kroah-Hartman --- fs/nfs/blocklayout/blocklayout.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -344,9 +344,10 @@ static void bl_write_cleanup(struct work u64 start = hdr->args.offset & (loff_t)PAGE_MASK; u64 end = (hdr->args.offset + hdr->args.count + PAGE_SIZE - 1) & (loff_t)PAGE_MASK; + u64 lwb = hdr->args.offset + hdr->args.count; ext_tree_mark_written(bl, start >> SECTOR_SHIFT, - (end - start) >> SECTOR_SHIFT, end); + (end - start) >> SECTOR_SHIFT, lwb); } pnfs_ld_write_done(hdr); Patches currently in stable-queue which might be from bcodding@redhat.com are queue-4.8/pnfs-blocklayout-fix-last_write_offset-incorrectly-set-to-page-boundary.patch