free_basic_memory_bitmaps(9)

✨ free_basic_memory_bitmaps(9) — Kernel API Manual ✨

okay so bestie, welcome to free_basic_memory_bitmaps(9) from the Kernel API Manual. This is the little cleanup baddie for basic-info memory bitmaps, and yes, we're gonna get into every detail. 💅

🎀 NAME 🎀

free_basic_memory_bitmaps — free memory bitmaps holding basic information. periodt. ✨

🦋 SYNOPSIS 🦋

void free_basic_memory_bitmaps (void );

🌸 ARGUMENTS 🌸

• void — no arguments. literally none, bestie, it's giving zero-argument main character energy. 🫶

💖 DESCRIPTION 💖

Okay so this function frees the memory bitmaps that were allocated by create_basic_memory_bitmaps. The auxiliary pointers are necessary so that the bitmaps themselves are not referred to while they are being freed. That's the whole point — cleanup time, but with the pointer safety so nobody is still pointing at the bitmaps while they're getting freed. no cap, that detail matters. 😭

🔥 SEE ALSO 🔥

Kernel file ./kernel/power/snapshot.c — here's the whole bestie list, all of it, no skips:

• get_image_page(9)
• free_image_page(9)
• alloc_rtree_node(9)
• free_mem_extents(9)
• create_mem_extents(9)
• memory_bm_next_pfn(9)
• mark_nosave_pages(9)
• create_basic_memory_bitmaps(9)
• snapshot_additional_pages(9)
• count_free_highmem_pages(9)
• count_highmem_pages(9)
• count_data_pages(9)
• swsusp_free(9)
• preallocate_image_pages(9)
• free_unnecessary_pages(9)
• minimum_image_size(9)
• hibernate_preallocate_memory(9)
• pack_pfns(9)
• snapshot_read_next(9)
• unpack_orig_pfns(9)
• count_highmem_image_pages(9)
• prepare_highmem_image(9)
• copy_last_highmem_page(9)
• prepare_image(9)
• snapshot_write_next(9)
• restore_highmem(9)

signing off from ./kernel/power, October 2026 — free_basic_memory_bitmaps(9), love u, bye 💜🦋