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yaml
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r: 286629
b: refs/heads/master
c: 5eb6f9a
h: refs/heads/master
i:
  286627: 2ba2d4f
v: v3
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Viresh Kumar authored and Rafael J. Wysocki committed Jan 19, 2012
1 parent 327db6a commit 91a55b1
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2 changes: 1 addition & 1 deletion [refs]
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refs/heads/master: f581b63aa1049ac030d6eb6c24e1be1ce2072ae7
refs/heads/master: 5eb6f9ad96967be4e0da55521a253e11b534bd3f
8 changes: 4 additions & 4 deletions trunk/Documentation/power/freezing-of-tasks.txt
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Expand Up @@ -120,10 +120,10 @@ So in practice, the 'at all' may become a 'why freeze kernel threads?' and
freezing user threads I don't find really objectionable."

Still, there are kernel threads that may want to be freezable. For example, if
a kernel that belongs to a device driver accesses the device directly, it in
principle needs to know when the device is suspended, so that it doesn't try to
access it at that time. However, if the kernel thread is freezable, it will be
frozen before the driver's .suspend() callback is executed and it will be
a kernel thread that belongs to a device driver accesses the device directly, it
in principle needs to know when the device is suspended, so that it doesn't try
to access it at that time. However, if the kernel thread is freezable, it will
be frozen before the driver's .suspend() callback is executed and it will be
thawed after the driver's .resume() callback has run, so it won't be accessing
the device while it's suspended.

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