Subj : [$] Revocable references for transient devices
To   : All
From : LWN.net
Date : Mon Sep 22 2025 15:15:09

[$] Revocable references for transient devices

Date:
Mon, 22 Sep 2025 14:05:09 +0000

Description:
Computers were once relatively static devices; if a peripheral was present
at boot, it was unlikely to disappear while the system was operating.
Those days are far behind us, though; devices can come and go at any time,
often with no notice.  That impermanence can create challenges for kernel
code, which may not be expecting resources it is managing to make an abrupt
exit.  The revocable
resource management patch set from Tzung-Bi Shih is meant to help with
the creation of more robust  and more secure  kernel subsystems in a
dynamic world.

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Link to news story:
https://lwn.net/Articles/1038523/


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