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(parent: ed31348) | patch
irq.h: remove padding from irq_desc on 64bits
authorRichard Kennedy <richard@rsk.demon.co.uk>
Sun, 23 Nov 2008 14:34:43 +0000 (14:34 +0000)
committerIngo Molnar <mingo@elte.hu>
Sun, 23 Nov 2008 15:15:00 +0000 (16:15 +0100)
commite262a7ba31f0cd4dae225e6d2e9037e5ac6108e8
tree338d892cf8d120341fa206ad8ed6350eb5bedd79tree | snapshot
parented313489badef16d700f5a3be50e8fd8f8294bc8commit | diff
irq.h: remove padding from irq_desc on 64bits

Impact: reduce struct irq_desc size

struct irq_desc: reorder to remove padding on 64bits

shrinks irq_desc to 128 bytes which saves data space & cache lines

On a generic x86_64/SMP build this reduces the reported data size by
64k.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
include/linux/irq.h diff | blob | history
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