From patchwork Tue Aug 11 18:33:46 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaegeuk Kim X-Patchwork-Id: 6994201 Return-Path: X-Original-To: patchwork-linux-fsdevel@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 E72729F358 for ; Tue, 11 Aug 2015 18:34:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3ACAA205C2 for ; Tue, 11 Aug 2015 18:34:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 59633205BA for ; Tue, 11 Aug 2015 18:34:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753703AbbHKSdv (ORCPT ); Tue, 11 Aug 2015 14:33:51 -0400 Received: from mail.kernel.org ([198.145.29.136]:52468 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753678AbbHKSdu (ORCPT ); Tue, 11 Aug 2015 14:33:50 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 02884205BA; Tue, 11 Aug 2015 18:33:49 +0000 (UTC) Received: from localhost (unknown [166.170.43.207]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CA1102056E; Tue, 11 Aug 2015 18:33:47 +0000 (UTC) From: Jaegeuk Kim To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim Subject: [PATCH] f2fs: do not assing a new segment for dio under space shortage Date: Tue, 11 Aug 2015 11:33:46 -0700 Message-Id: <1439318026-16036-1-git-send-email-jaegeuk@kernel.org> X-Mailer: git-send-email 2.1.1 X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If there is not enough free segment, we should not assign a new segment explicitly. Otherwise, we can run out of free segment. Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu --- fs/f2fs/segment.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 7d53cb4..bf1605d 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1225,7 +1225,8 @@ void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, mutex_lock(&sit_i->sentry_lock); /* direct_io'ed data is aligned to the segment for better performance */ - if (direct_io && curseg->next_blkoff) + if (direct_io && curseg->next_blkoff && + !has_not_enough_free_secs(sbi, 0)) __allocate_new_segments(sbi, type); *new_blkaddr = NEXT_FREE_BLKADDR(sbi, curseg);