fscache_end_volume_access(9)

💅 fscache_end_volume_access — the "okay we're done here, unpin it" era

So this one lives in the Kernel API Manual (yes bestie, kernel-level, we're literally in the filesystem guts rn 🫶) and it's the vibe-check-cleanup function for cache volumes. Let's get into it.

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✨ SYNOPSIS ✨

void fscache_end_volume_access (struct fscache_volume *volume , struct
       fscache_cookie *cookie , enum fscache_access_trace why );

That's it. That's the whole signature. Three args, zero drama, returns void because it is not here to give you answers 😌

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🎀 ARGUMENTS 🎀

• volume — the volume cookie. This is the main character of the whole operation 🔥
• cookie — a datafile cookie that exists purely for a tracing reference. It can be NULL and it'll still slay, no cap.
• why — literally an indication of the circumstances of the access, for tracing. It's the receipts, basically. For tracing.
• why — (continued vibe) an enum of type enum fscache_access_trace, bestie. That's the type. Write it down. 📝

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🌸 DESCRIPTION 🌸

Okay so picture this: you've accessed a cache volume, you did the thing, you lived the moment ✨ and now you need to unpin that cache volume. That's the whole job. fscache_end_volume_access unpins a cache volume after we've accessed it.

And the other two args? The datafile cookie and the why indicator? They are merely provided for tracing purposes. I cannot stress this enough — they're not out here changing behavior, they're not doing work, they're just there so the trace has something to look at. It's giving "invited to the party to take photos" 📸💅

Fr fr: cookie can legitimately be NULL (see ARGUMENTS above) — it's a tracing reference, not a requirement. Don't panic when you see it.

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🦋 SEE ALSO 🦋

• The kernel file ./fs/netfs/fscache_volume.c — that's where the realness lives, go read it iykyk 👑
• fscache_begin_volume_access(9) — the other half of the story, the "we're starting" to this one's "we're so done" 🌈
• fscache_withdraw_volume(9) — different function, same general neighborhood, say hi for me 🌸

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Okay that's the page!! Go unpin your volumes responsibly, drink some water, and remember: the cookie and why are just here for the footage 🎀💖

Sign-off time: this lil manual page comes from ./fs/netfs, and it's dated October 2026 — it's literally called fscache_end_volume_access(9), iconic name, no notes. Byeee 👋💜