add_usable_mem_property(9)

okay so welcome to add_usable_mem_property(9) from the Kernel API Manual — this is the page for adding the usable memory property for the given memory node, and it’s giving kernel-internals realness 💅✨

✨ NAME ✨

add_usable_mem_property — Add usable memory property for the given memory node. 🫶

🎀 SYNOPSIS 🎀

int add_usable_mem_property (void *fdt , struct device_node *dn , struct umem_info *um_info );

💅 ARGUMENTS 💅

• fdt — Flattened device tree for the kdump kernel. 🌈
• dn — Memory node. 🌸
• um_info — Usable memory buffer and ranges info. 🦋

🌸 DESCRIPTION 🌸

Returns 0 on success, negative errno on error. That’s the return contract, bestie — literally the whole vibe check for this one. ✨💖

🦋 SEE ALSO 🦋

Kernel file: ./arch/powerpc/kexec/file_load_64.c 👑

• check_realloc_usable_mem(9)
• add_usable_mem(9)
• kdump_setup_usable_lmb(9)
• update_usable_mem_fdt(9)
• load_backup_segment(9)
• load_elfcorehdr_segment(9)
• load_crashdump_segments_ppc64(9)
• setup_purgatory_ppc64(9)
• cpu_node_size(9)
• kexec_extra_fdt_size_ppc64(9)
• setup_new_fdt_ppc64(9)
• arch_kexec_kernel_image_probe(9)
• arch_kimage_file_post_load_cleanup(9)

okay that’s the whole page, byeee 💖 source/version: ./arch/powerpc/kexec · date: October 2026 · page: add_usable_mem_property(9) 🫶