[PATCH 5/5] orangefs: cache NULL when both default_acl and acl are NULL

From: Chengguang Xu <cgxu519@gmx.com>
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
Cc: devel@lists.orangefs.org, linux-kernel@vger.kernel.org,
	linux-ext4@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net,
	jfs-discussion@lists.sourceforge.net,
	Chengguang Xu <cgxu519@gmx.com>
Subject: [PATCH 5/5] orangefs: cache NULL when both default_acl and acl are NULL
Date: Tue, 14 Aug 2018 22:16:34 +0800	[thread overview]
Message-ID: <20180814141634.5471-5-cgxu519@gmx.com> (raw)
In-Reply-To: <20180814141634.5471-1-cgxu519@gmx.com>

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 <cgxu519@gmx.com>
---
 fs/orangefs/acl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/orangefs/acl.c b/fs/orangefs/acl.c
index 10587413b20e..e3b043a263bc 100644
--- a/fs/orangefs/acl.c
+++ b/fs/orangefs/acl.c
@@ -175,6 +175,9 @@ int orangefs_init_acl(struct inode *inode, struct inode *dir)
 		posix_acl_release(acl);
 	}
 
+	if (!default_acl && !acl)
+		cache_no_acl(inode);
+
 	/* If mode of the inode was changed, then do a forcible ->setattr */
 	if (mode != inode->i_mode) {
 		memset(&iattr, 0, sizeof iattr);
-- 
2.17.1

