s390/time: return with irqs disabled from psw_idle

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Modify the psw_idle waiting logic in entry[64].S to return with
interrupts disabled. This avoids potential issues with udelay
and interrupt loops as interrupts are not reenabled after
clock comparator interrupts.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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This commit is contained in:

Martin Schwidefsky 2013-08-23 14:45:58 +02:00

parent 6b169ac9b4

commit 0587d409ec

5 changed files with 4 additions and 6 deletions

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4

arch/s390/kernel/entry.S

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2

arch/s390/kernel/entry64.S

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1

arch/s390/kernel/process.c

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1

arch/s390/kernel/time.c

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2

arch/s390/lib/delay.c

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