tmp_suning_uos_patched/arch/i386
Linus Torvalds f9dadfa71b i386: write IO APIC irq routing entries in correct order
Since the "mask" bit is in the low word, when we write a new entry, we
need to write the high word first, before we potentially unmask it.

The exception is when we actually want to mask the interrupt, in which
case we want to write the low word first to make sure that the high word
doesn't change while the interrupt routing is still active.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-01 10:06:52 -08:00
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