RGBCube/serenity
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3 commits

Author SHA1 Message Date
Tom
e445ff670d Kernel: Implement an asynchronous device request stack 
This allows issuing asynchronous requests for devices and waiting
on the completion of the request. The requests can cascade into
multiple sub-requests.

Since IRQs may complete at any time, if the current process is no
longer the same that started the process, we need to swich the
paging context before accessing user buffers.

Change the PATA driver to use this model.
 2020-11-12 18:04:30 +01:00
Andreas Kling
501cef2bd7 Revert "Kernel: Implement an asynchronous device request stack" 
This reverts commit 2fd5ce1eb0.

This broke booting without SMP. (PR was #3921)
 2020-11-04 21:25:26 +01:00
Tom
2fd5ce1eb0 Kernel: Implement an asynchronous device request stack 
This allows issuing asynchronous requests for devices and waiting
on the completion of the request. The requests can cascade into
multiple sub-requests.

Since IRQs may complete at any time, if the current process is no
longer the same that started the process, we need to swich the
paging context before accessing user buffers.

Change the PATA driver to use this model.
 2020-11-04 21:21:37 +01:00