From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx181.postini.com [74.125.245.181]) by kanga.kvack.org (Postfix) with SMTP id ACE866B0028 for ; Tue, 26 Feb 2013 03:06:02 -0500 (EST) Received: from /spool/local by e23smtp07.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 26 Feb 2013 17:58:29 +1000 Received: from d23relay03.au.ibm.com (d23relay03.au.ibm.com [9.190.235.21]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id 04BC33578023 for ; Tue, 26 Feb 2013 19:05:58 +1100 (EST) Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay03.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r1Q85toB65405112 for ; Tue, 26 Feb 2013 19:05:55 +1100 Received: from d23av03.au.ibm.com (loopback [127.0.0.1]) by d23av03.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r1Q85vxB008468 for ; Tue, 26 Feb 2013 19:05:57 +1100 From: "Aneesh Kumar K.V" Subject: [PATCH -V1 17/24] mm/THP: withdraw the pgtable after pmdp related operations Date: Tue, 26 Feb 2013 13:35:07 +0530 Message-Id: <1361865914-13911-18-git-send-email-aneesh.kumar@linux.vnet.ibm.com> In-Reply-To: <1361865914-13911-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1361865914-13911-1-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