[patch 6/11] s390: in_interrupt vs. in_atomic.

[Martin Schwidefsky]

[patch 6/11] s390: in_interrupt vs. in_atomic.

From: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>

The condition for no context in do_exception checks for hard and
soft interrupts by using in_interrupt() but not for preemption.
This is bad for the users of __copy_from/to_user_inatomic because
the fault handler might call schedule although the preemption
count is != 0. Use in_atomic() instead in_interrupt().

Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>

diffstat:
 arch/s390/mm/fault.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -urpN linux-2.6/arch/s390/mm/fault.c linux-2.6-patched/arch/s390/mm/fault.c
--- linux-2.6/arch/s390/mm/fault.c	2005-06-01 19:42:54.000000000 +0200
+++ linux-2.6-patched/arch/s390/mm/fault.c	2005-06-01 19:43:18.000000000 +0200
@@ -207,7 +207,7 @@ do_exception(struct pt_regs *regs, unsig
 	 * we are not in an interrupt and that there is a 
 	 * user context.
 	 */
-        if (user_address == 0 || in_interrupt() || !mm)
+        if (user_address == 0 || in_atomic() || !mm)
                 goto no_context;
 
 	/*
-
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