pcpu_post_unmap_tlb_flush(9)

💖 NAME 💖

pcpu_post_unmap_tlb_flush — flush TLB after unmapping. We’re chilling in the Kernel API Manual, bestie ✨

✨ SYNOPSIS ✨

void pcpu_post_unmap_tlb_flush (struct pcpu_chunk *chunk , int page_start , int page_end );

🎀 ARGUMENTS 🎀

• chunk — the pcpu_chunk that the regions to be flushed belong to 🫶
• page_start — page index of the first page to be flushed
• page_end — page index of the last page to be flushed + 1 💅

🦋 DESCRIPTION 🦋

Pages [page_start,page_end) of chunk have been unmapped. Flush the TLB for the regions, okay? This can be skipped if the area is to be returned to vmalloc, because vmalloc will handle TLB flushing lazily. No cap.

And just like with pcpu_pre_unmap_flush, TLB flushing is also done at once for the whole region. periodt 💖

🌈 SEE ALSO 🌈

• Kernel file ./mm/percpu-vm.c
• pcpu_get_pages(9)
• pcpu_free_pages(9)
• pcpu_alloc_pages(9)
• pcpu_pre_unmap_flush(9)
• pcpu_unmap_pages(9)
• pcpu_map_pages(9)
• pcpu_post_map_flush(9)
• pcpu_populate_chunk(9)
• pcpu_depopulate_chunk(9)
• pcpu_should_reclaim_chunk(9)

xoxo, your girl from ./mm, October 2026, out here in the Kernel API Manual 💅✨ stay flushed, bestie 🎀