fscache_add_cache(9)

💖 fscache_add_cache(9) 💖

okay so bestie, we're in the Kernel API Manual today and this one's called fscache_add_cache — the "this cache is officially open for business" announcement of the fscache world 👑

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✨ NAME ✨

fscache_add_cache — declare a cache as being open for business 🎀

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🌸 SYNOPSIS 🌸

int fscache_add_cache (struct fscache_cache *cache , const struct
       fscache_cache_ops *ops , void *cache_priv );

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🦋 ARGUMENTS 🦋

• cache — the cache-level cookie that represents the cache, aka its little passport 🍪
• ops — the table of cache operations you're gonna use, it's giving "here's how you do the things" 💅
• cache_priv — private data for the cache record, your own personal stash 🙈

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💜 DESCRIPTION 💜

So basically you add a cache to the system, and that makes it available for netfs's to use. that's it, that's the whole vibe ✨

if you want the complete description (and honestly, why wouldn't you, she's thorough), go read Documentation/filesystems/caching/backend-api.rst — it's all there fr fr 📖

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🌈 SEE ALSO 🌈

• Kernel file ./fs/netfs/fscache_cache.c
• fscache_acquire_cache(9)
• fscache_put_cache(9)
• fscache_relinquish_cache(9)
• fscache_begin_cache_access(9)
• fscache_end_cache_access(9)
• fscache_io_error(9)
• fscache_withdraw_cache(9)

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and that's the page, bestie 🫶 this one came from ./fs/netfs, dated October 2026, and it's filing under fscache_add_cache(9) — slay, go register that cache 💖⭐🎀