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
Reviewed-by: James Morris
Acked-by: Serge Hallyn
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: H. Peter Anvin
---

arch/x86/mm/fault.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)


diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index b9f367f..17d74be 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -395,7 +395,7 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
if (pte && pte_present(*pte) && !pte_exec(*pte))
printk(KERN_CRIT "kernel tried to execute "
"NX-protected page - exploit attempt? "
- "(uid: %d)\n", current->uid);
+ "(uid: %d)\n", current_uid());
}
#endif


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