• [$] Revocable references for transient devices

    From LWN.net@1337:1/100 to All on Monday, September 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.

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


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