vdo_get_index_region_size(9)

💅 vdo_get_index_region_size — the Kernel API Manual bestie drop 🎀

okay so real talk, this one lives in the Kernel API Manual (yes, the whole manual, she's fancy) and it's giving "one tiny function, huge friend group" energy 💖

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✨ NAME ✨

vdo_get_index_region_size — bestie, this literally just gets the size of the index region from a geometry. that's it. that's the whole job. and she does it flawlessly 🫶

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🌸 SYNOPSIS 🌸

physical_block_number_t vdo_get_index_region_size (struct
volume_geometry geometry );

the way it takes a struct volume_geometry and hands you back a physical_block_number_t… iconic behavior, no notes 👑

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🦋 ARGUMENTS 🦋

• geometry — the geometry. like, the geometry. you give her the geometry, she gives you the size. a whole transaction, a whole vibe check, and yes she passes 💅

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⭐ RETURN ⭐

it returns the size of the index region. that's the answer, that's the plot twist, that's the whole main character arc 🔥

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🌈 SEE ALSO 🌈

okay this is the part where I have to list the entire friend group because every single one of them matters, no cap. gather round 🧚

• Kernel file ./drivers/md/dm-vdo/encodings.h
• Block map entries(9)
• vdo_are_same_version(9)
• vdo_pack_version_number(9)
• vdo_unpack_version_number(9)
• vdo_pack_header(9)
• vdo_unpack_header(9)
• vdo_get_index_region_start(9)
• vdo_get_data_region_start(9)
• vdo_pack_recovery_journal_entry(9)
• vdo_unpack_recovery_journal_entry(9)
• vdo_is_valid_recovery_journal_sector(9)
• vdo_compute_recovery_journal_block_number(9)
• vdo_get_journal_block_sector(9)
• vdo_pack_recovery_block_header(9)
• vdo_unpack_recovery_block_header(9)
• vdo_compute_slab_count(9)
• vdo_get_saved_reference_count_size(9)
• vdo_get_slab_journal_start_block(9)
• vdo_advance_journal_point(9)
• vdo_before_journal_point(9)
• vdo_pack_journal_point(9)
• vdo_unpack_journal_point(9)
• vdo_pack_slab_journal_block_header(9)
• vdo_unpack_slab_journal_block_header(9)
• vdo_pack_slab_journal_entry(9)
• vdo_unpack_slab_journal_entry(9)
• vdo_get_slab_summary_hint_shift(9)

like, the roster is long but every name is on the list for a reason, iykyk 🌸

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and that's the page, bestie 🎀 shoutout to ./drivers/md/dm-vdo for hosting this whole situation, dated October 2026 — future vibes only, we love to see it 💜✨ 🦋