diff options
author | Eric W. Biederman <ebiederm@xmission.com> | 2008-07-10 14:48:54 -0700 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 19:21:13 +0200 |
commit | f84dbb912f344270f31d5cce974f12908a47798d (patch) | |
tree | 0eb8543dc2f9455decd0c69f07d40f03e1868932 /include/linux/irq.h | |
parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) |
genirq: enable polling for disabled screaming irqs
When we disable a screaming irq we never see it again. If the irq
line is shared or if the driver half works this is a real pain. So
periodically poll the handlers for screaming interrupts.
I use a timer instead of the classic irq poll technique of working off
the timer interrupt because when we use the local apic timers
note_interrupt is never called (bug?). Further on a system with
dynamic ticks the timer interrupt might not even fire unless there is
a timer telling it it needs to.
I forced this case on my test system with an e1000 nic and my ssh
session remained responsive despite the interrupt handler only being
called every 10th of a second.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/irq.h')
0 files changed, 0 insertions, 0 deletions