From patchwork Tue Sep 8 09:25:54 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qu Wenruo X-Patchwork-Id: 7139441 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 62DBA9F380 for ; Tue, 8 Sep 2015 09:28:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 80A462062A for ; Tue, 8 Sep 2015 09:28:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 81347205F1 for ; Tue, 8 Sep 2015 09:28:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754033AbbIHJ2D (ORCPT ); Tue, 8 Sep 2015 05:28:03 -0400 Received: from cn.fujitsu.com ([59.151.112.132]:41443 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1753367AbbIHJ2A (ORCPT ); Tue, 8 Sep 2015 05:28:00 -0400 X-IronPort-AV: E=Sophos;i="5.15,520,1432569600"; d="scan'208";a="100467567" Received: from bogon (HELO edo.cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 08 Sep 2015 17:30:56 +0800 Received: from G08CNEXCHPEKD01.g08.fujitsu.local (localhost.localdomain [127.0.0.1]) by edo.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id t889RkSj011245 for ; Tue, 8 Sep 2015 17:27:46 +0800 Received: from localhost.localdomain (10.167.226.33) by G08CNEXCHPEKD01.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.181.6; Tue, 8 Sep 2015 17:27:58 +0800 From: Qu Wenruo To: Subject: [PATCH 17/19] btrfs: extent-tree: Use new __btrfs_delalloc_reserve_space function Date: Tue, 8 Sep 2015 17:25:54 +0800 Message-ID: <1441704356-1940-2-git-send-email-quwenruo@cn.fujitsu.com> X-Mailer: git-send-email 2.5.1 In-Reply-To: <1441702615-18333-1-git-send-email-quwenruo@cn.fujitsu.com> References: <1441702615-18333-1-git-send-email-quwenruo@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.33] Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use new __btrfs_delalloc_reserve_space to reserve space. Signed-off-by: Qu Wenruo --- fs/btrfs/inode-map.c | 2 +- fs/btrfs/inode.c | 16 ++++++++++------ fs/btrfs/ioctl.c | 5 +++-- 3 files changed, 14 insertions(+), 9 deletions(-) diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index d4a582a..ab639d3 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -488,7 +488,7 @@ again: /* Just to make sure we have enough space */ prealloc += 8 * PAGE_CACHE_SIZE; - ret = btrfs_delalloc_reserve_space(inode, prealloc); + ret = __btrfs_delalloc_reserve_space(inode, 0, prealloc); if (ret) goto out_put; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 1f7cac0..d70cb26 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1985,7 +1985,8 @@ again: goto again; } - ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE); + ret = __btrfs_delalloc_reserve_space(inode, page_start, + PAGE_CACHE_SIZE); if (ret) { mapping_set_error(page->mapping, ret); end_extent_writepage(page, ret, page_start, page_end); @@ -4581,7 +4582,8 @@ int btrfs_truncate_page(struct inode *inode, loff_t from, loff_t len, if ((offset & (blocksize - 1)) == 0 && (!len || ((len & (blocksize - 1)) == 0))) goto out; - ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE); + ret = __btrfs_delalloc_reserve_space(inode, + round_down(from, PAGE_CACHE_SIZE), PAGE_CACHE_SIZE); if (ret) goto out; @@ -8373,7 +8375,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter, mutex_unlock(&inode->i_mutex); relock = true; } - ret = btrfs_delalloc_reserve_space(inode, count); + ret = __btrfs_delalloc_reserve_space(inode, offset, count); if (ret) goto out; outstanding_extents = div64_u64(count + @@ -8620,7 +8622,11 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) u64 page_end; sb_start_pagefault(inode->i_sb); - ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE); + page_start = page_offset(page); + page_end = page_start + PAGE_CACHE_SIZE - 1; + + ret = __btrfs_delalloc_reserve_space(inode, page_start, + PAGE_CACHE_SIZE); if (!ret) { ret = file_update_time(vma->vm_file); reserved = 1; @@ -8639,8 +8645,6 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) again: lock_page(page); size = i_size_read(inode); - page_start = page_offset(page); - page_end = page_start + PAGE_CACHE_SIZE - 1; if ((page->mapping != inode->i_mapping) || (page_start >= size)) { diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 0adf542..e0291fc 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1119,8 +1119,9 @@ static int cluster_pages_for_defrag(struct inode *inode, page_cnt = min_t(u64, (u64)num_pages, (u64)file_end - start_index + 1); - ret = btrfs_delalloc_reserve_space(inode, - page_cnt << PAGE_CACHE_SHIFT); + ret = __btrfs_delalloc_reserve_space(inode, + start_index << PAGE_CACHE_SHIFT, + page_cnt << PAGE_CACHE_SHIFT); if (ret) return ret; i_done = 0;