get_zone_count_ptr(9)

💖 get_zone_count_ptr(9) 💖

okay so this page comes from the Kernel API Manual, bestie, and it's all about get_zone_count_ptr. Manual name folded in near the top? Slay. 💅

✨ NAME ✨

get_zone_count_ptr — get a pointer to the zone count for a given lock on a given zone. That's the whole assignment, no cap. 🎀

🛠️ SYNOPSIS 🛠️

Here's the actual signature, character for character:

atomic_t * get_zone_count_ptr (struct recovery_journal *journal ,
block_count_t lock_number , enum vdo_zone_type zone_type );

🎀 ARGUMENTS 🎀

• journal — the recovery journal. Yes, that one. 💖
• lock_number — the lock to get. The lock you're asking for, periodt.
• zone_type — the zone type whose count is desired. It's giving exactly what it says. ✨

🌈 RETURN 🌈

A pointer to the zone count for the given lock and zone. That's the return, bestie — pointer, zone count, given lock and zone. Iconic. 👑

👑 SEE ALSO 👑

The whole friend group is here. Every single reference, no skips:

• Kernel file ./drivers/md/dm-vdo/recovery-journal.c Lock Counters.(9)
• get_counter(9)
• is_journal_zone_locked(9)
• vdo_release_recovery_journal_block_reference(9)
• pop_free_list(9)
• is_block_dirty(9)
• is_block_empty(9)
• is_block_full(9)
• assert_on_journal_thread(9)
• continue_waiter(9)
• has_block_waiters(9)
• suspend_lock_counter(9)
• check_for_drain_complete(9)
• notify_recovery_journal_of_read_only_mode(9)
• enter_journal_read_only_mode(9)
• vdo_get_recovery_journal_current_sequence_number(9)
• get_recovery_journal_head(9)
• compute_recovery_count_byte(9)
• check_slab_journal_commit_threshold(9)
• finish_reaping(9)
• complete_reaping(9)
• handle_flush_error(9)
• initialize_journal_state(9)
• vdo_get_recovery_journal_length(9)
• reap_recovery_journal_callback(9)
• initialize_lock_counter(9)
• set_journal_tail(9)
• initialize_recovery_block(9)
• vdo_decode_recovery_journal(9)
• vdo_free_recovery_journal(9)
• vdo_initialize_recovery_journal_post_repair(9)
• vdo_get_journal_block_map_data_blocks_used(9)
• vdo_get_recovery_journal_thread_id(9)
• vdo_open_recovery_journal(9)
• vdo_record_recovery_journal(9)
• get_block_header(9)
• set_active_sector(9)
• advance_tail(9)
• initialize_lock_count(9)
• prepare_to_assign_entry(9)
• schedule_block_write(9)
• release_journal_block_reference(9)
• assign_entry(9)
• recycle_journal_block(9)
• continue_committed_waiter(9)
• notify_commit_waiters(9)
• recycle_journal_blocks(9)
• complete_write(9)
• add_queued_recovery_entries(9)
• write_block(9)
• write_blocks(9)
• vdo_add_recovery_journal_entry(9)
• is_lock_locked(9)
• reap_recovery_journal(9)
• vdo_acquire_recovery_journal_block_reference(9)
• vdo_release_journal_entry_lock(9)
• vdo_drain_recovery_journal(9)
• resume_lock_counter(9)
• vdo_resume_recovery_journal(9)
• vdo_get_recovery_journal_logical_blocks_used(9)
• vdo_get_recovery_journal_statistics(9)
• dump_recovery_block(9)
• vdo_dump_recovery_journal_statistics(9)

💌 Cute sign-off: this page is from source/version ./drivers/md/dm-vdo and it's dated October 2026, bestie. Mwah, go get that zone count pointer. 💅🫶