linux-kernel - [PATCH 10/11] userns: Convert the udf filesystem to use kuid/kgid where appropriate

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Date:	Fri, 21 Sep 2012 18:35:11 -0700
From:	"Eric W. Biederman" <ebiederm@...ssion.com>
To:	<linux-fsdevel@...r.kernel.org>
Cc:	<linux-kernel@...r.kernel.org>, Serge Hallyn <serge@...lyn.com>,
	Linux Containers <containers@...ts.linux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Jan Kara <jack@...e.cz>
Subject: [PATCH 10/11] userns: Convert the udf filesystem to use kuid/kgid where appropriate

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

Cc: Jan Kara <jack@...e.cz>
Acked-by: Serge Hallyn <serge.hallyn@...onical.com>
Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
---
 fs/udf/inode.c |   20 ++++++++++++--------
 init/Kconfig   |    1 -
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index fafaad7..2e6fb4d 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1250,6 +1250,8 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
 	struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
 	struct udf_inode_info *iinfo = UDF_I(inode);
 	unsigned int link_count;
+	uid_t i_uid;
+	gid_t i_gid;
 
 	fe = (struct fileEntry *)bh->b_data;
 	efe = (struct extendedFileEntry *)bh->b_data;
@@ -1309,17 +1311,19 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
 	}
 
 	read_lock(&sbi->s_cred_lock);
-	inode->i_uid = le32_to_cpu(fe->uid);
-	if (inode->i_uid == -1 ||
+	i_uid = le32_to_cpu(fe->uid);
+	if (i_uid == -1 ||
 	    UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_IGNORE) ||
 	    UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_SET))
-		inode->i_uid = UDF_SB(inode->i_sb)->s_uid;
+		i_uid = UDF_SB(inode->i_sb)->s_uid;
+	i_uid_write(inode, i_uid);
 
-	inode->i_gid = le32_to_cpu(fe->gid);
-	if (inode->i_gid == -1 ||
+	i_gid = le32_to_cpu(fe->gid);
+	if (i_gid == -1 ||
 	    UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_IGNORE) ||
 	    UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_SET))
-		inode->i_gid = UDF_SB(inode->i_sb)->s_gid;
+		i_gid = UDF_SB(inode->i_sb)->s_gid;
+	i_gid_write(inode, i_gid);
 
 	if (fe->icbTag.fileType != ICBTAG_FILE_TYPE_DIRECTORY &&
 			sbi->s_fmode != UDF_INVALID_MODE)
@@ -1539,12 +1543,12 @@ static int udf_update_inode(struct inode *inode, int do_sync)
 	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_FORGET))
 		fe->uid = cpu_to_le32(-1);
 	else
-		fe->uid = cpu_to_le32(inode->i_uid);
+		fe->uid = cpu_to_le32(i_uid_read(inode));
 
 	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_FORGET))
 		fe->gid = cpu_to_le32(-1);
 	else
-		fe->gid = cpu_to_le32(inode->i_gid);
+		fe->gid = cpu_to_le32(i_gid_read(inode));
 
 	udfperms = ((inode->i_mode & S_IRWXO)) |
 		   ((inode->i_mode & S_IRWXG) << 2) |
diff --git a/init/Kconfig b/init/Kconfig
index 21adc1c..6f9819a 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -939,7 +939,6 @@ config UIDGID_CONVERTED
 	depends on NFSD = n
 	depends on NFS_FS = n
 	depends on OCFS2_FS = n
-	depends on UDF_FS = n
 	depends on UFS_FS = n
 	depends on XFS_FS = n
 
-- 
1.7.5.4

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