linux-kernel - [PATCH 18/59] CRED: Wrap task credential accesses in the BFS filesystem

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Message-ID: <20080827134715.19980.64010.stgit@warthog.procyon.org.uk>
Date:	Wed, 27 Aug 2008 14:47:15 +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>,
	"Tigran A. Aivazian" <tigran@...azian.fsnet.co.uk>
Subject: [PATCH 18/59] CRED: Wrap task credential accesses in the BFS
	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: Tigran A. Aivazian <tigran@...azian.fsnet.co.uk>
---

 fs/bfs/dir.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)


diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 87ee5cc..e892a71 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -105,8 +105,8 @@ static int bfs_create(struct inode *dir, struct dentry *dentry, int mode,
 	}
 	set_bit(ino, info->si_imap);
 	info->si_freei--;
-	inode->i_uid = current->fsuid;
-	inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
+	inode->i_uid = current_fsuid();
+	inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current_fsgid();
 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
 	inode->i_blocks = 0;
 	inode->i_op = &bfs_file_inops;

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