From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaegeuk Kim Subject: [PATCH] f2fs: invalidate inode and data pages if inode is no longer used Date: Wed, 24 Aug 2016 19:34:19 -0700 Message-ID: <20160825023419.82566-1-jaegeuk@kernel.org> 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 1bckUw-0004DW-9R for linux-f2fs-devel@lists.sourceforge.net; Thu, 25 Aug 2016 02:34:30 +0000 Received: from mail.kernel.org ([198.145.29.136]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1bckUv-0007qG-3J for linux-f2fs-devel@lists.sourceforge.net; Thu, 25 Aug 2016 02:34:30 +0000 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 When a file is closed, let's deactivate inode page to mitigate further memory pressure. We can do data pages as well in the corner case of f2fs_drop_inode. Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 4 ++++ fs/f2fs/super.c | 1 + 2 files changed, 5 insertions(+) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index e460211..5f9a6dc 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1465,6 +1465,10 @@ static int f2fs_release_file(struct inode *inode, struct file *filp) filemap_fdatawrite(inode->i_mapping); clear_inode_flag(inode, FI_DROP_CACHE); } + + /* deactivate written inode page */ + invalidate_mapping_pages(NODE_MAPPING(F2FS_I_SB(inode)), + inode->i_ino, inode->i_ino); return 0; } diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 7f863a6..f84696d 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -618,6 +618,7 @@ static int f2fs_drop_inode(struct inode *inode) sb_end_intwrite(inode->i_sb); fscrypt_put_encryption_info(inode, NULL); + invalidate_mapping_pages(inode->i_mapping, 0, -1); spin_lock(&inode->i_lock); atomic_dec(&inode->i_count); } -- 2.8.3 ------------------------------------------------------------------------------