Andreas Kling 0c5bbac86e Add an InterruptDisabler helper class and use that for kmalloc. ...

The naive spinlock was not nearly enough to protect kmalloc from
reentrancy problems.

I don't want to deal with coming up with a fancy lock for kmalloc
right now, so I made an InterruptDisabler thingy instead.
It does CLI and then STI iff interrupts were previously enabled.

2018-10-24 11:07:53 +02:00

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