linux-kernel - [PATCH review 25/85] ocfs2: Compare kuids and kgids using uid_eq and gid

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Date:	Wed, 13 Feb 2013 09:51:14 -0800
From:	"Eric W. Biederman" <ebiederm@...ssion.com>
To:	<linux-fsdevel@...r.kernel.org>
Cc:	Linux Containers <containers@...ts.linux-foundation.org>,
	<linux-kernel@...r.kernel.org>,
	"Serge E. Hallyn" <serge@...lyn.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Mark Fasheh <mfasheh@...e.com>,
	Joel Becker <jlbec@...lplan.org>
Subject: [PATCH review 25/85] ocfs2: Compare kuids and kgids using uid_eq and gid_eq

From: "Eric W. Biederman" <ebiederm@...ssion.com>

Cc: Mark Fasheh <mfasheh@...e.com>
Cc: Joel Becker <jlbec@...lplan.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---
 fs/ocfs2/file.c         |    8 ++++----
 fs/ocfs2/refcounttree.c |    2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 8ee9332..0a2924a 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1175,14 +1175,14 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
 		}
 	}
 
-	if ((attr->ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
-	    (attr->ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
+	if ((attr->ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, inode->i_uid)) ||
+	    (attr->ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, inode->i_gid))) {
 		/*
 		 * Gather pointers to quota structures so that allocation /
 		 * freeing of quota structures happens here and not inside
 		 * dquot_transfer() where we have problems with lock ordering
 		 */
-		if (attr->ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid
+		if (attr->ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, inode->i_uid)
 		    && OCFS2_HAS_RO_COMPAT_FEATURE(sb,
 		    OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) {
 			transfer_to[USRQUOTA] = dqget(sb, make_kqid_uid(attr->ia_uid));
@@ -1191,7 +1191,7 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
 				goto bail_unlock;
 			}
 		}
-		if (attr->ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid
+		if (attr->ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, inode->i_gid)
 		    && OCFS2_HAS_RO_COMPAT_FEATURE(sb,
 		    OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) {
 			transfer_to[GRPQUOTA] = dqget(sb, make_kqid_gid(attr->ia_gid));
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 30a0550..934a4ac 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -4407,7 +4407,7 @@ static int ocfs2_vfs_reflink(struct dentry *old_dentry, struct inode *dir,
 	 * rights to do so.
 	 */
 	if (preserve) {
-		if ((current_fsuid() != inode->i_uid) && !capable(CAP_CHOWN))
+		if (!uid_eq(current_fsuid(), inode->i_uid) && !capable(CAP_CHOWN))
 			return -EPERM;
 		if (!in_group_p(inode->i_gid) && !capable(CAP_CHOWN))
 			return -EPERM;
-- 
1.7.5.4

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