DEFINE_XARRAY_ALLOC(9)

🦋 DEFINE_XARRAY_ALLOC(9) 🦋

okay bestie, this page is from the Kernel API Manual, and it’s about a macro that defines an XArray which allocates IDs starting at 0. literally iconic for file scope allocation setups 💅

🌸 NAME 🌸

DEFINE_XARRAY_ALLOC — Define an XArray which allocates IDs starting at 0. ✨

✨ SYNOPSIS ✨

DEFINE_XARRAY_ALLOC (name );

🎀 ARGUMENTS 🎀

• name — A string that names your XArray. 🏷️

💅 DESCRIPTION 💅

This is intended for file scope definitions of allocating XArrays. See also DEFINE_XARRAY. no cap, that’s the whole vibe check ✅

🔥 SEE ALSO 🔥

Kernel file ./include/linux/xarray.h — and the full reference squad is: xa_mk_value(9), xa_to_value(9), xa_is_value(9), xa_tag_pointer(9), xa_untag_pointer(9), xa_pointer_tag(9), xa_is_zero(9), xa_is_err(9), xa_err(9), struct xa_limit(9), struct xarray(9), DEFINE_XARRAY_FLAGS(9), DEFINE_XARRAY(9), DEFINE_XARRAY_ALLOC1(9), xa_init_flags(9), xa_init(9), xa_empty(9), xa_marked(9), xa_for_each_range(9), xa_for_each_start(9), xa_for_each(9), xa_for_each_marked(9), xa_store_bh(9), xa_store_irq(9), xa_erase_bh(9), xa_erase_irq(9), xa_cmpxchg(9), xa_cmpxchg_bh(9), xa_cmpxchg_irq(9), xa_insert(9), xa_insert_bh(9), xa_insert_irq(9), xa_alloc(9), xa_alloc_bh(9), xa_alloc_irq(9), xa_alloc_cyclic(9), xa_alloc_cyclic_bh(9), xa_alloc_cyclic_irq(9), xa_reserve(9), xa_reserve_bh(9), xa_reserve_irq(9), xa_release(9), xa_is_sibling(9), xa_is_retry(9), xa_is_advanced(9), xa_update_node_t(9), XA_STATE(9), XA_STATE_ORDER(9), xas_error(9), xas_set_err(9), xas_invalid(9), xas_valid(9), xas_is_node(9), xas_reset(9), xas_retry(9), xas_reload(9), xas_set(9), xas_advance(9), xas_set_order(9), xas_set_update(9), xas_next_entry(9), xas_next_marked(9), xas_for_each(9), xas_for_each_marked(9), xas_for_each_conflict(9), xas_prev(9), xas_next(9)

mwah 💋 this one is sourced from ./include/linux, dated October 2026. bye bestie, go slay those allocations 🫶🌈