Re: [0/25] Merge pmdisk and swsusp

[Patrick Mochel]

On Mon, 19 Jul 2004, Pavel Machek wrote:

> > <mochel@xxxxxxxxxxxxxxxxxx> (04/07/17 1.1865)
> >    [swsusp] Remove unneeded suspend_pagedir_lock.
>
> How do you guarantee that while copying pages back and forth,
> interrupts are disabled? They have to be, because memory snapshots are
> no longer atomic.

(This was cleared up in person in Ottawa, but just for the record: )

Interrupts are disabled in swsusp_suspend() and swsusp_resume(), using
local_irq_disable(), instead of doing spin_lock_irq().


	Pat
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