netfs_invalidate_folio(9)

💅 netfs_invalidate_folio 💅

okay bestie, welcome to the netfs_invalidate_folio(9) page in the kernel API manual. This is the one about invalidating or partially invalidating a folio — yes, a folio, we love her. It's giving filesystem cleanup main character energy, and we're gonna get through it together. 🫶

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🌸 NAME 🌸

netfs_invalidate_folio — Invalidate or partially invalidate a folio. That's the whole vibe.

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✨ SYNOPSIS ✨

void netfs_invalidate_folio (struct folio *folio , size_t offset ,
size_t length );

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🎀 ARGUMENTS 🎀

• folio — the folio proposed for release. She's on the chopping block, bestie. 💅
• offset — the offset of the invalidated region. Like, where the invalidating starts.
• length — the length of the invalidated region. How much of the folio is getting hit with the invalidate beam. ✨

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💖 DESCRIPTION 💖

So here's the tea: this invalidates part or all of a folio for a network filesystem. Not just any random folio situation — network filesystem business, okay? 🌐

And if the invalidated region covers the entire folio, the folio will be removed afterwards. The whole thing? Gone. Removed. Iconic behavior, honestly. 💀

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🦋 SEE ALSO 🦋

Kernel file ./fs/netfs/misc.c is over there doing her thing, and these besties are all linked up:

• netfs_alloc_folioq_buffer(9)
• netfs_free_folioq_buffer(9)
• netfs_dirty_folio(9)
• netfs_unpin_writeback(9)
• netfs_clear_inode_writeback(9)
• netfs_release_folio(9)
• netfs_clear_stale_isize(9)

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xoxo, from the source/version ./fs/netfs, dated October 2026, this has been your girl netfs_invalidate_folio(9) — slay and stay safe, bestie 💖🎀🦋