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[[User:Wli|Wli]] 09:20, 25 Jun 2005 (UTC) is William Irwin, a [[Linux kernel]] programmer who lives in [[Portland, Oregon]], and works for [[Oracle Corporation]].

Within [[Linux]], he maintains the 32-bit [[SPARC]] [[computer architecture]] port, the hugetlb filesystem, and several other facilities he's contributed changes to. One of his more notable kernel patches included in the mainline Linux kernel was cpumask_t, support for arbitrary numbers of cpus where previously this was restricted by bitmap lengths of 1 word in size. Another notable patch, which was not included in mainline Linux, was pgcl, a reimplementation of Hugh Dickins' page clustering patch for Linux 2.4.6 and 2.4.7, which had the distinction of being the first patch used to enable 64GB [[IA32]] systems to run Linux effectively, in conjunction with the first public announcement of such a system running Linux.