vdo_invalidate_page_cache(9)

🎀 vdo_invalidate_page_cache(9) 🎀

Okay bestie, welcome to the Kernel API Manual! This is the page for vdo_invalidate_page_cache(9), and we are keeping every fact, every name, and every little detail intact. 💖✨

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🌸 NAME 🌸

vdo_invalidate_page_cache — invalidate all entries in the VDO page cache. 💅

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✨ SYNOPSIS ✨

Here is the signature, character-for-character, no cap:

int vdo_invalidate_page_cache (struct vdo_page_cache *cache );

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🎀 ARGUMENTS 🎀

• cache — the page cache. That's the argument, bestie. 🫶

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🦋 DESCRIPTION 🦋

There must not be any dirty pages in the cache. Like, zero dirty pages. This is the rule, and it is not a vibe suggestion — no dirty pages in the cache, periodt. 💅🔥

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⭐ RETURN ⭐

A success or error code. That's the return tea. ✨

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👀 SEE ALSO 👀

All the linked-up references, exactly as listed:

• Kernel file ./drivers/md/dm-vdo/block-map.c
• Block map eras(9)
• initialize_info(9)
• allocate_cache_components(9)
• assert_on_cache_thread(9)
• get_page_state_name(9)
• update_counter(9)
• set_info_state(9)
• find_free_page(9)
• find_page(9)
• select_lru_page(9)
• complete_with_page(9)
• complete_waiter_with_error(9)
• complete_waiter_with_page(9)
• distribute_page_over_waitq(9)
• set_persistent_error(9)
• validate_completed_page(9)
• handle_load_error(9)
• page_is_loaded(9)
• handle_rebuild_read_error(9)
• launch_page_load(9)
• schedule_page_save(9)
• launch_page_save(9)
• completion_needs_page(9)
• allocate_free_page(9)
• discard_a_page(9)
• discard_page_if_needed(9)
• write_has_finished(9)
• handle_page_write_error(9)
• page_is_written_out(9)
• write_pages(9)
• vdo_release_page_completion(9)
• vdo_get_page(9)
• vdo_request_page_write(9)
• vdo_get_cached_page(9)
• get_tree_page_by_index(9)
• in_cyclic_range(9)
• is_not_older(9)
• add_to_dirty_lists(9)
• vdo_find_block_map_slot(9)
• make_forest(9)
• replace_forest(9)
• finish_cursor(9)
• continue_traversal(9)
• finish_traversal_load(9)
• traverse(9)
• launch_cursor(9)
• compute_boundary(9)
• vdo_traverse_forest(9)
• initialize_block_map_zone(9)
• clear_mapped_location(9)
• set_mapped_location(9)

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Signed off by the ./drivers/md/dm-vdo besties on October 2026 — catch you in the next vdo_invalidate_page_cache(9) page! 🫶💖🌈