svcxdr_set_auth_slack(9)

💖 NAME 💖

okay so bestie, this is svcxdr_set_auth_slack(9) from the Kernel API Manual, and the NAME section is literally just svcxdr_set_auth_slack followed by a dash and, like, no description. That's the whole name vibe. 💅

✨ SYNOPSIS ✨

void svcxdr_set_auth_slack (struct svc_rqst *rqstp , int slack );

🎀 ARGUMENTS 🎀

• rqstp — the RPC transaction. That's the main-character struct here. 👑
• slack — buffer space to reserve for the transaction's security flavor. That's the room we're setting aside, periodt.

🦋 DESCRIPTION 🦋

So what's the tea? This sets the request's slack space requirement, and then it sets aside that much space in rqstp's rq_res.head for use when the auth wraps the Reply. That's literally the whole plot: slack requirement goes in, reserved space in rq_res.head is ready for auth wrapping the Reply. ✨

🌸 SEE ALSO 🌸

The page points at the Kernel file ./include/linux/sunrpc/svc.h and these besties:

• svc_serv_maxpages(9)
• svc_thread_should_stop(9)
• svc_thread_init_status(9)
• svc_rqst_page_release(9)
• svcxdr_init_decode(9)
• svcxdr_init_encode(9)
• svcxdr_encode_opaque_pages(9)
• svcxdr_set_accept_stat(9)

and that's the whole page, bestie! 🫶 It comes from ./include/linux/sunrpc, dated October 2026, and the footer is all about svcxdr_set_auth_slack(9). 💖🦋