kzalloc(9)

💖 kzalloc(9) 💖

okay so bestie, we're in the Kernel API Manual today and this page is literally about kzalloc — yes that's the kernel one, not some random thing, iykyk. buckle up 🎀

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✨ NAME ✨

kzalloc — allocate memory. The memory is set to zero. 🫶

that's it. that's the whole personality. it allocates, it zeroes, it slays.

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🌸 SYNOPSIS 🌸

void * kzalloc (size_t size , gfp_t flags );

look at her. two arguments, one return, zero drama. main character energy for real 💅

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🦋 ARGUMENTS 🦋

• size — how many bytes of memory are required. like, how much room does your little guy need. count the bytes, bestie, the kernel is not gonna do it for you 💀
• flags — the type of memory to allocate (see kmalloc). yep, so if you're confused about the flags situation, the kmalloc page is right there, go read it, it's giving reference material ✨

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🌈 SEE ALSO 🌈

the whole friend group showed up, no cap 👑

• Kernel file ./include/linux/slab.h — the source file itself, iconic
• SLAB_HWCACHE_ALIGN(9)
• SLAB_TYPESAFE_BY_RCU(9)
• SLAB_ACCOUNT(9)
• SLAB_RECLAIM_ACCOUNT(9)
• struct kmem_cache_args(9)
• kmem_cache_create_usercopy(9)
• kmem_cache_create(9)
• krealloc_node_align(9)
• kmem_cache_alloc(9)
• kmem_cache_charge(9)
• kmalloc(9)
• kmalloc_nolock(9)
• __alloc_objs(9)
• __alloc_flex(9)
• kmalloc_obj(9)
• kmalloc_objs(9)
• kmalloc_flex(9)
• kmalloc_array(9)
• krealloc_array(9)
• kcalloc(9)
• kvmalloc_node(9)
• kvrealloc_node_align(9)
• kmalloc_size_roundup(9)

like, that's a full roster. every single one of them. periodt 💜

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and that's the page, bestie 🍓 everything above is straight facts, no invented lore, promise 🙈

this one came from the source at ./include/linux, dated October 2026, and it's filed under kzalloc(9) — mwah, go allocate something, love u 😭💖🧚