From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752155AbeEGM3Q (ORCPT ); Mon, 7 May 2018 08:29:16 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:7233 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751937AbeEGM3P (ORCPT ); Mon, 7 May 2018 08:29:15 -0400 From: Chao Yu To: CC: , , , Chao Yu Subject: [PATCH v2 1/3] f2fs: fix to initialize i_current_depth according to inode type Date: Mon, 7 May 2018 20:28:52 +0800 Message-ID: <20180507122854.91506-1-yuchao0@huawei.com> X-Mailer: git-send-email 2.17.0.391.g1f1cddd558b5 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.120.216.130] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org i_current_depth is used only for directory inode, but its space is shared with i_gc_failures field used for regular inode, in order to avoid affecting i_gc_failures' value, this patch fixes to initialize the union's fields according to inode type. Signed-off-by: Chao Yu --- v2: - rebase code. fs/f2fs/inode.c | 12 +++++++++--- fs/f2fs/namei.c | 3 +++ fs/f2fs/super.c | 1 - 3 files changed, 12 insertions(+), 4 deletions(-) diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index 7f2fe4574c48..3a74a1cf3264 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -232,8 +232,10 @@ static int do_read_inode(struct inode *inode) inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); inode->i_generation = le32_to_cpu(ri->i_generation); - - fi->i_current_depth = le32_to_cpu(ri->i_current_depth); + if (S_ISDIR(inode->i_mode)) + fi->i_current_depth = le32_to_cpu(ri->i_current_depth); + else if (S_ISREG(inode->i_mode)) + fi->i_gc_failures = le16_to_cpu(ri->i_gc_failures); fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); fi->i_flags = le32_to_cpu(ri->i_flags); fi->flags = 0; @@ -422,7 +424,11 @@ void update_inode(struct inode *inode, struct page *node_page) ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); - ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth); + if (S_ISDIR(inode->i_mode)) + ri->i_current_depth = + cpu_to_le32(F2FS_I(inode)->i_current_depth); + else if (S_ISREG(inode->i_mode)) + ri->i_gc_failures = cpu_to_le16(F2FS_I(inode)->i_gc_failures); ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index fef6e3ab2135..bcfc4219b29e 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -54,6 +54,9 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode) F2FS_I(inode)->i_crtime = current_time(inode); inode->i_generation = sbi->s_next_generation++; + if (S_ISDIR(inode->i_mode)) + F2FS_I(inode)->i_current_depth = 1; + err = insert_inode_locked(inode); if (err) { err = -EINVAL; diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 294be9e92aee..55ccc2eaaa2e 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -826,7 +826,6 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb) /* Initialize f2fs-specific inode info */ atomic_set(&fi->dirty_pages, 0); - fi->i_current_depth = 1; init_rwsem(&fi->i_sem); INIT_LIST_HEAD(&fi->dirty_list); INIT_LIST_HEAD(&fi->gdirty_list); -- 2.17.0.391.g1f1cddd558b5