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authorDavid Howells <dhowells@redhat.com>2008-11-14 10:39:05 +1100
committerJames Morris <jmorris@namei.org>2008-11-14 10:39:05 +1100
commitda9592edebceeba1b9301beafe80ec8b9c2db0ce (patch)
tree00c110cd8ff6d211d76ab4868b6175096a38aad5 /fs/attr.c
parent82ab8deda7fef36f067ccdeacc3b3caefc970f89 (diff)
downloadlinux-da9592edebceeba1b9301beafe80ec8b9c2db0ce.tar.gz
CRED: Wrap task credential accesses in the filesystem subsystem
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@redhat.com> Reviewed-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'fs/attr.c')
-rw-r--r--fs/attr.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/attr.c b/fs/attr.c
index 7a83819f6ba..f4360192a93 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -29,13 +29,13 @@ int inode_change_ok(struct inode *inode, struct iattr *attr)
/* Make sure a caller can chown. */
if ((ia_valid & ATTR_UID) &&
- (current->fsuid != inode->i_uid ||
+ (current_fsuid() != inode->i_uid ||
attr->ia_uid != inode->i_uid) && !capable(CAP_CHOWN))
goto error;
/* Make sure caller can chgrp. */
if ((ia_valid & ATTR_GID) &&
- (current->fsuid != inode->i_uid ||
+ (current_fsuid() != inode->i_uid ||
(!in_group_p(attr->ia_gid) && attr->ia_gid != inode->i_gid)) &&
!capable(CAP_CHOWN))
goto error;