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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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4
fs/ioprio.c
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@@ -32,8 +32,8 @@ static int set_task_ioprio(struct task_struct *task, int ioprio)
int err;
struct io_context *ioc;
if (task->uid != current->euid &&
task->uid != current->uid && !capable(CAP_SYS_NICE))
if (task->uid != current_euid() &&
task->uid != current_uid() && !capable(CAP_SYS_NICE))
return -EPERM;
err = security_task_setioprio(task, ioprio);