STRUCT PADATA_PRIV(9)

💅 struct padata_priv(9) 💅

okay bestie, welcome to the Kernel API Manual — yes we're reading kernel docs for fun now, this is who we are, and honestly? iconic behaviour. today's main character is struct padata_priv, which literally represents one job. one. single. job. she's booked and busy but only for one thing at a time 🎀

✨ NAME ✨

struct padata_priv — Represents one job 💼

🌸 SYNOPSIS 🌸

struct padata_priv {
    struct list_head        list;
    struct parallel_data    *pd;
    int cb_cpu;
    unsigned int            seq_nr;
    int info;
    void (*parallel)(struct padata_priv *padata);
    void (*serial)(struct padata_priv *padata);
 };

no cap, look at her. seven fields. every single one matters. let's get into it 🫶

🦋 Members 🦋

• list — the list entry, so she can attach to the padata lists. it's giving "add me to the group chat" energy 💌
• pd — pointer to the internal control structure. the backstage manager, iykyk ✨
• cb_cpu — callback cpu for serializatioon. (yes, "serializatioon", that's how it's written here — typo era, we respect it 🫡) this is the cpu that handles the callback.
• seq_nr — sequence number of the parallelized data object. keeping things in order, periodt 🔢
• info — used to pass information from the parallel to the serial function. she's the messenger 🧚
• parallel — parallel execution function. the go-go-go one 🔥
• serial — serial complete function. the calm, collected finisher 👑

💜 SEE ALSO 💜

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

the whole friend group 😭 go read them too, they're all slay in their own way 🌈

and that's the page, bestie! 🎀 source/version ./include/linux, dated October 2026, and she's filed under struct padata_priv(9) — mwah, no notes 💅💖