From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756600AbcHYGNN (ORCPT ); Thu, 25 Aug 2016 02:13:13 -0400 Received: from mail.kernel.org ([198.145.29.136]:46942 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751297AbcHYGNL (ORCPT ); Thu, 25 Aug 2016 02:13:11 -0400 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: 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> X-Mailer: git-send-email 2.8.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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