From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx165.postini.com [74.125.245.165]) by kanga.kvack.org (Postfix) with SMTP id DF3A76B0044 for ; Thu, 4 Apr 2013 01:58:25 -0400 (EDT) Received: from /spool/local by e28smtp05.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 4 Apr 2013 11:25:20 +0530 Received: from d28relay04.in.ibm.com (d28relay04.in.ibm.com [9.184.220.61]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id 07637394004F for ; Thu, 4 Apr 2013 11:28:20 +0530 (IST) Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay04.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r345wFGe53346416 for ; Thu, 4 Apr 2013 11:28:16 +0530 Received: from d28av01.in.ibm.com (loopback [127.0.0.1]) by d28av01.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r345wIwK026836 for ; Thu, 4 Apr 2013 05:58:18 GMT From: "Aneesh Kumar K.V" Subject: [PATCH -V5 16/25] mm/THP: withdraw the pgtable after pmdp related operations Date: Thu, 4 Apr 2013 11:27:54 +0530 Message-Id: <1365055083-31956-17-git-send-email-aneesh.kumar@linux.vnet.ibm.com> In-Reply-To: <1365055083-31956-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1365055083-31956-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: benh@kernel.crashing.org, paulus@samba.org Cc: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, "Aneesh Kumar K.V" , Andrea Arcangeli From: "Aneesh Kumar K.V" For architectures like ppc64 we look at deposited pgtable when calling pmdp_get_and_clear. So do the pgtable_trans_huge_withdraw after finishing pmdp related operations. Cc: Andrea Arcangeli Signed-off-by: Aneesh Kumar K.V --- mm/huge_memory.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index e91b763..5c7cd7d 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1380,9 +1380,10 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma, struct page *page; pgtable_t pgtable; pmd_t orig_pmd; - pgtable = pgtable_trans_huge_withdraw(tlb->mm, pmd); + orig_pmd = pmdp_get_and_clear(tlb->mm, addr, pmd); tlb_remove_pmd_tlb_entry(tlb, pmd, addr); + pgtable = pgtable_trans_huge_withdraw(tlb->mm, pmd); if (is_huge_zero_pmd(orig_pmd)) { tlb->mm->nr_ptes--; spin_unlock(&tlb->mm->page_table_lock); -- 1.7.10 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org