Re: [TECH TOPIC] Implementing malloc

Mark Brown <[email protected]> Mon, 29 Jun 2026 19:29:21 +0100

Newsgroups	dev.linux.lists.ksummit
Message-ID	<[email protected]>

On Mon, Jun 29, 2026 at 07:19:20PM +0100, Matthew Wilcox wrote:

> But we do have code which just needs to allocate "some memory", doesn't
> have any particularly weird restrictions, and where usability is more
> important than "pedal to the metal".  An example might be something
> like zlib.  It needs to allocate some temporary memory, and why have to

Or drivers just allocating some driver data.  TBH kzalloc() kind of ends
up being that function a lot of the time, I'm not convinced that a high
proportion of the kzalloc(x, GFP_KERNEL) calls out there are the result
of a deep consideration of which allocator to use.

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