• [$] Removing a pointer dereference from slab allocations

    From LWN.net@1337:1/100 to All on Thu Jan 15 15:00:09 2026
    [$] Removing a pointer dereference from slab allocations

    Date:
    Thu, 15 Jan 2026 14:49:16 +0000

    Description:
    Al Viro does not often stray outside of the core virtual filesystem area;
    when he does, it is usually worthy of note. Recently, he wandered into
    memory management with this patch
    series to the slab allocator and some of its users. Kernel developers
    will often put considerable effort into small optimizations, but it is
    still interesting to look at just how much effort has gone toward the purpose of
    avoiding a single pointer dereference in some memory-allocation hot paths.

    ======================================================================
    Link to news story:
    https://lwn.net/Articles/1053870/


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