From: Chengguang Xu Subject: [PATCH v2 4/5] jfs: cache NULL when both default_acl and acl are NULL Date: Fri, 31 Aug 2018 22:33:51 +0800 Message-ID: <20180831143352.22970-4-cgxu519@gmx.com> References: <20180831143352.22970-1-cgxu519@gmx.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: jfs-discussion@lists.sourceforge.net, Chengguang Xu , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-ext4@vger.kernel.org, devel@lists.orangefs.org To: jack@suse.com, tytso@mit.edu, adilger.kernel@dilger.ca, jaegeuk@kernel.org, yuchao0@huawei.com, shaggy@kernel.org, hubcap@omnibond.com, martin@omnibond.com Return-path: In-Reply-To: <20180831143352.22970-1-cgxu519@gmx.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net List-Id: linux-ext4.vger.kernel.org default_acl and acl of newly created inode will be initiated as ACL_NOT_CACHED in vfs function inode_init_always() and later will be updated by calling xxx_init_acl() in specific filesystems. Howerver, when default_acl and acl are NULL then they keep the value of ACL_NOT_CACHED, this patch tries to cache NULL for acl/default_acl in this case. Signed-off-by: Chengguang Xu --- v1->v2: - Coding style change. fs/jfs/acl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c index 2e71b6e7e646..8c06a6ea862d 100644 --- a/fs/jfs/acl.c +++ b/fs/jfs/acl.c @@ -146,12 +146,16 @@ int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir) if (default_acl) { rc = __jfs_set_acl(tid, inode, ACL_TYPE_DEFAULT, default_acl); posix_acl_release(default_acl); + } else { + inode->i_default_acl = NULL; } if (acl) { if (!rc) rc = __jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl); posix_acl_release(acl); + } else { + inode->i_acl = NULL; } JFS_IP(inode)->mode2 = (JFS_IP(inode)->mode2 & 0xffff0000) | -- 2.17.1 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot