From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaegeuk Kim Subject: [PATCH 4/5] f2fs: write node pages if checkpoint is not doing Date: Sat, 8 Nov 2014 23:36:08 -0800 Message-ID: <1415518569-20626-4-git-send-email-jaegeuk@kernel.org> References: <1415518569-20626-1-git-send-email-jaegeuk@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1XnN2t-0005CK-1E for linux-f2fs-devel@lists.sourceforge.net; Sun, 09 Nov 2014 07:36:23 +0000 Received: from mail.kernel.org ([198.145.19.201]) by sog-mx-2.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1XnN2s-0008Tu-BO for linux-f2fs-devel@lists.sourceforge.net; Sun, 09 Nov 2014 07:36:23 +0000 In-Reply-To: <1415518569-20626-1-git-send-email-jaegeuk@kernel.org> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim It needs to write node pages if checkpoint is not doing in order to avoid memory pressure. Signed-off-by: Jaegeuk Kim --- fs/f2fs/node.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 4ea2c47..6f514fb 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1314,10 +1314,12 @@ static int f2fs_write_node_page(struct page *page, return 0; } - if (wbc->for_reclaim) - goto redirty_out; - - down_read(&sbi->node_write); + if (wbc->for_reclaim) { + if (!down_read_trylock(&sbi->node_write)) + goto redirty_out; + } else { + down_read(&sbi->node_write); + } set_page_writeback(page); write_node_page(sbi, page, &fio, nid, ni.blk_addr, &new_addr); set_node_addr(sbi, &ni, new_addr, is_fsync_dnode(page)); -- 2.1.1 ------------------------------------------------------------------------------