STRUCT PADATA_SHELL(9)

okay bestie, welcome to the Kernel API Manual entry for struct padata_shell(9) — yes, that exact page, and it's lowkey iconic 💅✨

✨ NAME ✨

struct padata_shell — it's a wrapper around struct parallel_data, and its whole purpose is to let the underlying control structure be replaced on the fly using RCU. That's the vibe, fr fr 🦋

🦋 SYNOPSIS 🦋

okay so here's the exact shape of it, no cap:

       struct padata_shell {
           struct padata_instance          *pinst;
           struct parallel_data *pd;
           struct parallel_data            *opd;
           struct list_head                list;
        };

💅 Members 💅

• pinst — padat instance. yep, padat, exactly like that bestie 💀
• pd — the actual parallel_data structure, which may be substituted on the fly ✨
• opd — pointer to the old pd that's gonna get freed by padata_replace 🫶
• list — list entry in the padata_instance list, periodt 🎀

🌈 SEE ALSO 🌈

go read these too, bestie:

• Kernel file ./include/linux/padata.h
• struct padata_priv(9)
• struct padata_list(9)
• struct padata_serial_queue(9)
• struct padata_cpumask(9)
• struct parallel_data(9)
• struct padata_mt_job(9)
• struct padata_instance(9)

source/version: ./include/linux · date: October 2026 · struct padata_shell(9) — bye bestie, slay your kernel adventures 💖👑