Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754932Ab3GOKIM (ORCPT ); Mon, 15 Jul 2013 06:08:12 -0400 Received: from lgeamrelo02.lge.com ([156.147.1.126]:47672 "EHLO LGEAMRELO02.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754829Ab3GOKIH (ORCPT ); Mon, 15 Jul 2013 06:08:07 -0400 X-AuditID: 9c93017e-b7b62ae000000eeb-dc-51e3c6717c6b From: Joonsoo Kim To: Andrew Morton Cc: Rik van Riel , Mel Gorman , Michal Hocko , "Aneesh Kumar K.V" , KAMEZAWA Hiroyuki , Hugh Dickins , Davidlohr Bueso , David Gibson , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Joonsoo Kim , Joonsoo Kim Subject: [PATCH 3/9] mm, hugetlb: clean-up alloc_huge_page() Date: Mon, 15 Jul 2013 18:52:41 +0900 Message-Id: <1373881967-16153-4-git-send-email-iamjoonsoo.kim@lge.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1373881967-16153-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1373881967-16153-1-git-send-email-iamjoonsoo.kim@lge.com> X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1672 Lines: 55 We can unify some codes for succeed allocation. This makes code more readable. There is no functional difference. Signed-off-by: Joonsoo Kim diff --git a/mm/hugetlb.c b/mm/hugetlb.c index d21a33a..0067cf4 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1144,29 +1144,25 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, hugepage_subpool_put_pages(spool, chg); return ERR_PTR(-ENOSPC); } + spin_lock(&hugetlb_lock); page = dequeue_huge_page_vma(h, vma, addr, avoid_reserve); - if (page) { - /* update page cgroup details */ - hugetlb_cgroup_commit_charge(idx, pages_per_huge_page(h), - h_cg, page); - spin_unlock(&hugetlb_lock); - } else { + if (!page) { spin_unlock(&hugetlb_lock); page = alloc_buddy_huge_page(h, NUMA_NO_NODE); if (!page) { hugetlb_cgroup_uncharge_cgroup(idx, - pages_per_huge_page(h), - h_cg); + pages_per_huge_page(h), h_cg); hugepage_subpool_put_pages(spool, chg); return ERR_PTR(-ENOSPC); } + spin_lock(&hugetlb_lock); - hugetlb_cgroup_commit_charge(idx, pages_per_huge_page(h), - h_cg, page); list_move(&page->lru, &h->hugepage_activelist); - spin_unlock(&hugetlb_lock); + /* Fall through */ } + hugetlb_cgroup_commit_charge(idx, pages_per_huge_page(h), h_cg, page); + spin_unlock(&hugetlb_lock); set_page_private(page, (unsigned long)spool); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/