From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:54322 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935124AbcJTOXv (ORCPT ); Thu, 20 Oct 2016 10:23:51 -0400 Subject: Patch "async_pq_val: fix DMA memory leak" has been added to the 4.7-stable tree To: jmaggard10@gmail.com, dan.j.williams@intel.com, gregkh@linuxfoundation.org, jmaggard@netgear.com, vinod.koul@intel.com Cc: , From: Date: Thu, 20 Oct 2016 16:23:51 +0200 Message-ID: <14769734318786@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 async_pq_val: fix DMA memory leak to the 4.7-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: async_pq_val-fix-dma-memory-leak.patch and it can be found in the queue-4.7 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From c84750906b4818d4929fbf73a4ae6c113b94f52b Mon Sep 17 00:00:00 2001 From: Justin Maggard Date: Tue, 4 Oct 2016 13:17:58 -0700 Subject: async_pq_val: fix DMA memory leak From: Justin Maggard commit c84750906b4818d4929fbf73a4ae6c113b94f52b upstream. Add missing dmaengine_unmap_put(), so we don't OOM during RAID6 sync. Fixes: 1786b943dad0 ("async_pq_val: convert to dmaengine_unmap_data") Signed-off-by: Justin Maggard Reviewed-by: Dan Williams Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- crypto/async_tx/async_pq.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/crypto/async_tx/async_pq.c +++ b/crypto/async_tx/async_pq.c @@ -368,8 +368,6 @@ async_syndrome_val(struct page **blocks, dma_set_unmap(tx, unmap); async_tx_submit(chan, tx, submit); - - return tx; } else { struct page *p_src = P(blocks, disks); struct page *q_src = Q(blocks, disks); @@ -424,9 +422,11 @@ async_syndrome_val(struct page **blocks, submit->cb_param = cb_param_orig; submit->flags = flags_orig; async_tx_sync_epilog(submit); - - return NULL; + tx = NULL; } + dmaengine_unmap_put(unmap); + + return tx; } EXPORT_SYMBOL_GPL(async_syndrome_val); Patches currently in stable-queue which might be from jmaggard10@gmail.com are queue-4.7/async_pq_val-fix-dma-memory-leak.patch