nfs4_discov...ver_trunking(9)

💅 nfs4_discov...ver_trunking(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes, that Kernel API Manual — and today's main character is nfs4_discover_server_trunking. it's giving networking detective energy and honestly? iconic. 🕵️‍♀️✨

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🌸 NAME 🌸

nfs4_discover_server_trunking — detect server IP address trunking 💖

like. it finds out whether the server is doing the trunking thing. that's the whole vibe. 😌

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✨ SYNOPSIS ✨

int nfs4_discover_server_trunking (struct nfs_client *clp , struct
       nfs_client **result );

literally right there. two arguments. one int coming back at you. slay. 🫶

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🎀 ARGUMENTS 🎀

• clp — the nfs_client under test 🔍 like the one we're putting in the hot seat, ngl
• result — OUT: found nfs_client, or clp 🌟 so it's an output param, and what lands in it is either the nfs_client we found or just clp itself. iykyk

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🦋 DESCRIPTION 🦋

returns zero or a negative errno. periodt. 💅

and if zero comes back? that means an nfs_client pointer gets planted in "result". yup, zero is the good one, the pointer shows up, the whole thing ate. 👑

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⭐ NOTE ⭐

heads up bestie, this one's important: since we are invoked in process context, and not from inside the state manager, we cannot use nfs4_handle_reclaim_lease_error. 😭 no cap. that function is just not available to us here. don't try it, the vibe check says no. 🙈

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🧚 SEE ALSO 🧚

kernel file ./fs/nfs/nfs4state.c and the whole friend group 🌈:

• nfs4_get_renew_cred(9)
• nfs41_discover_server_trunking(9)
• nfs4_get_clid_cred(9)
• nfs4_get_state_owner(9)
• nfs4_put_state_owner(9)
• nfs4_purge_state_owners(9)
• nfs4_free_state_owners(9)
• nfs4_schedule_migration_recovery(9)
• nfs4_schedule_lease_moved_recovery(9)

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and that's the page!! 🎉 source spot is ./fs/nfs, dated October 2026 — mwah, kisses, go read the kernel source bestie 💜🍓🧚‍♀️