cache_seg_set_next_seg(9)

💖 cache_seg_set_next_seg(9) — the kernel API manual, bestie edition 💖

okay so you found your way into the cache_seg_set_next_seg page of the Kernel API Manual and honestly? slay. this one is short and sweet, so let's get into it 🎀

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✨ NAME ✨

cache_seg_set_next_seg — sets the ID of the next segment 💅

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🌸 SYNOPSIS 🌸

void cache_seg_set_next_seg (struct pcache_cache_segment *cache_seg ,
u32 seg_id );

like, that's the whole signature. two args, returns void, no drama 🫶

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🦋 ARGUMENTS 🦋

• cache_seg — pointer to the cache segment structure. yes bestie, the actual struct, hand it over 🎀
• seg_id — the segment ID to set as the next segment. that's the u32 right there, she's a whole number ⭐

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💜 DESCRIPTION 💜

so a pcache_cache allocates multiple cache segments, and those segments are linked together through next_seg — that's the chain, iykyk 🔗

when you're loading a pcache_cache, the first cache segment can be found using cache->seg_id, which is literally the key to accessing all the cache segments. main character energy honestly 👑

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/md/dm-pcache/cache_segment.c
• get_cache_segment(9)

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no cap, that's every detail from the page — nothing dropped, nothing invented 💀

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that's the whole vibe, bestie. this page is from ./drivers/md/dm-pcache, dated October 2026 — periodt, go set some next segments 💅✨🎀🦋