nfsd_nl_parse_one_expkey(9)

💅 nfsd_nl_parse_one_expkey(9) — the kernel API manual, but make it make sense

okay so bestie, welcome to nfsd_nl_parse_one_expkey(9), a real page from the Kernel API Manual. yes it's a mouthful, no you don't have to say it out loud. it's giving "function name that ate and left no crumbs" 🍓

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✨ NAME ✨

nfsd_nl_parse_one_expkey — it parses like one single expkey entry out of netlink. one. just the one. lowkey specific and we respect that 💅

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🌸 SYNOPSIS 🌸

int nfsd_nl_parse_one_expkey (struct cache_detail *cd , struct nlattr
*attr );

there she is. the whole signature, untouched, exactly as the kernel gods wrote it 👑

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🎀 ARGUMENTS 🎀

• cd — the cache_detail for the expkey cache. that's its whole personality, it's the cache detail, it holds the expkey cache info 💖
• attr — a nested attribute holding all the expkey fields inside it. nested!! like a little gift box of fields 🎁

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🦋 DESCRIPTION 🦋

so what does it actually do? it parses one expkey entry from a netlink message and then updates the cache. that's the whole job, and honestly? slay.

it mirrors the logic in expkey_parse — so if you already know expkey_parse, you already know this vibe. iykyk 🧚

it returns 0 on success, or a negative errno if things went sideways. so like, zero means we ate, negative means we're crying in the group chat 😭

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🔥 SEE ALSO 🔥

• Kernel file ./fs/nfsd/export.c — that's the source file bestie, that's where the lore lives
• nfsd_nl_expkey_get_reqs_dumpit(9)
• nfsd_nl_expkey_set_reqs_doit(9)
• nfsd_nl_svc_export_get_reqs_dumpit(9)
• nfsd_nl_parse_fslocations(9)
• nfsd_nl_parse_one_export(9)
• nfsd_nl_svc_export_set_reqs_doit(9)
• check_xprtsec_policy(9)
• check_security_flavor(9)
• check_nfsd_access(9)
• rqst_exp_find(9)

that's the whole friend group right there, go say hi 🫶

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ngl this one's short and sweet — no warnings, no deprecated flags, no footguns hiding in the bushes. just parse one expkey, update the cache, return 0 or a negative errno. periodt 💜

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and that's the page!! 💖 it lives in ./fs/nfsd, dated October 2026, Kernel API Manual energy all the way through, and nfsd_nl_parse_one_expkey(9) is literally the main character of her own header. bye bestie, go parse something 🌈⭐