From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gu Zheng Subject: [PATCH 1/3] f2fs: move grabing orphan pages out of protection region Date: Fri, 10 Jan 2014 18:09:02 +0800 Message-ID: <52CFC6BE.7020609@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1W1Z8n-0006Qs-1C for linux-f2fs-devel@lists.sourceforge.net; Fri, 10 Jan 2014 10:16:37 +0000 Received: from [222.73.24.84] (helo=song.cn.fujitsu.com) by sog-mx-1.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1W1Z8l-0001Eb-3e for linux-f2fs-devel@lists.sourceforge.net; Fri, 10 Jan 2014 10:16:36 +0000 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: Kim Cc: fsdevel , linux-kernel , f2fs Move grabing orphan block page out of protection region, and grab all the orphan block pages ahead. Signed-off-by: Gu Zheng --- fs/f2fs/checkpoint.c | 15 +++++++++------ 1 files changed, 9 insertions(+), 6 deletions(-) diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 0d78bbe..af92c74 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -303,22 +303,25 @@ static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) { struct list_head *head; struct f2fs_orphan_block *orphan_blk = NULL; - struct page *page = NULL; unsigned int nentries = 0; - unsigned short index = 1; - unsigned short orphan_blocks; + unsigned short index; + unsigned short orphan_blocks = (unsigned short)((sbi->n_orphans + + (F2FS_ORPHANS_PER_BLOCK - 1)) / F2FS_ORPHANS_PER_BLOCK); + struct page *page = NULL; + struct page *pages[orphan_blocks]; struct orphan_inode_entry *orphan = NULL; - orphan_blocks = (unsigned short)((sbi->n_orphans + - (F2FS_ORPHANS_PER_BLOCK - 1)) / F2FS_ORPHANS_PER_BLOCK); + for (index = 0; index < orphan_blocks; index++) + pages[index] = grab_meta_page(sbi, start_blk + index); + index = 1; mutex_lock(&sbi->orphan_inode_mutex); head = &sbi->orphan_inode_list; /* loop for each orphan inode entry and write them in Jornal block */ list_for_each_entry(orphan, head, list) { if (!page) { - page = grab_meta_page(sbi, start_blk); + page = pages[index - 1]; orphan_blk = (struct f2fs_orphan_block *)page_address(page); memset(orphan_blk, 0, sizeof(*orphan_blk)); -- 1.7.7 ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk