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CRED: Wrap task credential accesses in the filesystem subsystem

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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>
This commit is contained in:
David Howells
2008-11-14 10:39:05 +11:00
committed by James Morris
parent 82ab8deda7
commit da9592edeb
15 changed files with 38 additions and 36 deletions
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2
fs/fcntl.c
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@@ -211,7 +211,7 @@ int __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
if (err)
return err;
f_modown(filp, pid, type, current->uid, current->euid, force);
f_modown(filp, pid, type, current_uid(), current_euid(), force);
return 0;
}
EXPORT_SYMBOL(__f_setown);