free_contig_frozen_range(9)

✨ NAME ✨

okay so bestie, this is free_contig_frozen_range(9) from the Kernel API Manual 💖, and the official one-liner is literally:

free_contig_frozen_range - - free the contiguous range of frozen pages

🦋 SYNOPSIS 🦋

the signature is giving “void, no return value, very demure” ✨:

void free_contig_frozen_range (unsigned long pfn , unsigned long
nr_pages );

🎀 ARGUMENTS 🎀

• pfn — start PFN to free. That’s the starting point, periodt 💅.
• nr_pages — Number of contiguous frozen pages to free. Count ’em, bestie 🫶.

🌸 DESCRIPTION 🌸

This can be used to free the allocated compound/non-compound frozen pages. That’s the whole move: allocated compound/non-compound frozen pages get freed here, no cap 👑.

👑 SEE ALSO 👑

Kernel file ./mm/page_alloc.c is where the crew lives 🫶. The full SEE ALSO lineup is:

• __get_pfnblock_flags_mask(9)
• get_pfnblock_bit(9)
• get_pfnblock_migratetype(9)
• __set_pfnblock_flags_mask(9)
• set_pfnblock_bit(9)
• clear_pfnblock_bit(9)
• set_pageblock_migratetype(9)
• __move_freepages_block_isolate(9)
• __putback_isolated_page(9)
• __free_pages(9)
• free_pages(9)
• alloc_pages_exact(9)
• alloc_pages_exact_nid(9)
• free_pages_exact(9)
• nr_free_zone_pages(9)
• nr_free_buffer_pages(9)
• find_next_best_node(9)
• free_reserved_pages(9)
• setup_per_zone_wmarks(9)
• __free_contig_range(9)
• alloc_contig_frozen_range(9)
• alloc_contig_range(9)
• alloc_contig_frozen_pages(9)
• alloc_contig_pages(9)
• free_contig_range(9)
• alloc_pages_nolock(9)

mwah 💋 — the source/version stamp is ./mm, and the date is October 2026. go off, kernel bestie 🌈✨