From: miloody@gmail.com (loody)
To: kernelnewbies@lists.kernelnewbies.org
Subject: In SMP system, is there any api to disable IRQ for all CPUs?
Date: Thu, 1 Oct 2015 23:49:48 +0800 [thread overview]
Message-ID: <CANudz+u2euW1WN=jaUhM0n01sVc6P_8t+mzRjSgmDM5cTiYubw@mail.gmail.com> (raw)
hi all:
is there any kernel API can let IRQ disable for all CPU in SMP system
for a while?
I just need it for a experiment on my module.
such as:
xxxx --> disable SMP all cpu IRQ
OOO ---> no interrupt happen
OOO ---> no interrupt happen
zzzz ---> enable SMP all cou IRQ
Appreciate your kind help in advance,
next reply other threads:[~2015-10-01 15:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-01 15:49 loody [this message]
2015-10-02 2:01 ` In SMP system, is there any api to disable IRQ for all CPUs? Rik van Riel
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