vdo_dump_physical_zone(9)

okay so this is vdo_dump_physical_zone(9), straight from the Kernel API Manual, and it’s giving debugging-helper main character energy ✨💅

🌸 NAME 🌸

vdo_dump_physical_zone — dumps info about a physical zone to the log for debugging. No cap, that’s the whole vibe: it’s a debugging dump helper, bestie 🫶

✨ SYNOPSIS ✨

The signature is literally right here, iconic and exact:

void vdo_dump_physical_zone (const struct physical_zone *zone );

🎀 ARGUMENTS 🎀

• zone — the zone to dump, bestie. That’s the argument. Periodt 🎀

🔥 SEE ALSO 🔥

Kernel file: ./drivers/md/dm-vdo/physical-zone.c — and here’s the whole related-API friend group, no skipping, fr fr:

• vdo_is_pbn_read_lock(9)
• vdo_downgrade_pbn_write_lock(9)
• vdo_claim_pbn_lock_increment(9)
• vdo_assign_pbn_lock_provisional_reference(9)
• vdo_unassign_pbn_lock_provisional_reference(9)
• release_pbn_lock_provisional_reference(9)
• union idle_pbn_lock(9)
• struct pbn_lock_pool(9)
• return_pbn_lock_to_pool(9)
• make_pbn_lock_pool(9)
• free_pbn_lock_pool(9)
• borrow_pbn_lock_from_pool(9)
• initialize_zone(9)
• vdo_make_physical_zones(9)
• vdo_free_physical_zones(9)
• vdo_get_physical_zone_pbn_lock(9)
• vdo_attempt_physical_zone_pbn_lock(9)
• allocate_and_lock_block(9)
• retry_allocation(9)
• continue_allocating(9)
• vdo_allocate_block_in_zone(9)
• vdo_release_physical_zone_pbn_lock(9)

cute sign-off: this page’s source/version is ./drivers/md/dm-vdo, dated October 2026 💖🦋