linux-kernel - [PATCH 39/59] CRED: Wrap task credential accesses in the OMFS filesystem

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Message-ID: <20080827134903.19980.60358.stgit@warthog.procyon.org.uk>
Date:	Wed, 27 Aug 2008 14:49:03 +0100
From:	David Howells <dhowells@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	linux-security-module@...r.kernel.org,
	David Howells <dhowells@...hat.com>,
	Serge Hallyn <serue@...ibm.com>,
	Bob Copeland <me@...copeland.com>,
	linux-karma-devel@...ts.sourceforge.net
Subject: [PATCH 39/59] CRED: Wrap task credential accesses in the OMFS
	filesystem

Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells <dhowells@...hat.com>
Reviewed-by: James Morris <jmorris@...ei.org>
Acked-by: Serge Hallyn <serue@...ibm.com>
Cc: Bob Copeland <me@...copeland.com>
Cc: linux-karma-devel@...ts.sourceforge.net
---

 fs/omfs/inode.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)


diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index d29047b..f96cddf 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -37,8 +37,8 @@ struct inode *omfs_new_inode(struct inode *dir, int mode)
 
 	inode->i_ino = new_block;
 	inode->i_mode = mode;
-	inode->i_uid = current->fsuid;
-	inode->i_gid = current->fsgid;
+	inode->i_uid = current_fsuid();
+	inode->i_gid = current_fsgid();
 	inode->i_blocks = 0;
 	inode->i_mapping->a_ops = &omfs_aops;
 
@@ -420,8 +420,8 @@ static int omfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	sb->s_fs_info = sbi;
 
-	sbi->s_uid = current->uid;
-	sbi->s_gid = current->gid;
+	sbi->s_uid = current_uid();
+	sbi->s_gid = current_gid();
 	sbi->s_dmask = sbi->s_fmask = current->fs->umask;
 
 	if (!parse_options((char *) data, sbi))

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