STRUCT PSZ_CONTEXT(9)

✨ struct psz_context(9) ✨

okay so this is the page for struct psz_context — literally the whole running-state situation for pstore/zone, from the Kernel API Manual bestie. everything you need to know about what's going on inside pstore/zone at runtime lives right here, no cap 💅

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🌸 NAME 🌸

struct psz_context — all about the running state of pstore/zone. that's it, that's the vibe check 🦋

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🎀 SYNOPSIS 🎀

struct psz_context {
    struct pstore_zone **kpszs;
    struct pstore_zone *ppsz;
    struct pstore_zone *cpsz;
    struct pstore_zone **fpszs;
    unsigned int kmsg_max_cnt;
    unsigned int kmsg_read_cnt;
    unsigned int kmsg_write_cnt;
    unsigned int pmsg_read_cnt;
    unsigned int console_read_cnt;
    unsigned int ftrace_max_cnt;
    unsigned int ftrace_read_cnt;
    unsigned int oops_counter;
    unsigned int panic_counter;
    atomic_t recovered;
    atomic_t on_panic;
    struct mutex pstore_zone_info_lock;
    struct pstore_zone_info *pstore_zone_info;
    struct pstore_info pstore;
 };

like, copy it exactly pls, don't be out here retyping fields from memory 🙈

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💖 Members 💖

here's the whole cast, main character by main character 👑

• kpszs — the kmsg dump storage zones. all of them. plural. iconic.
• ppsz — the pmsg storage zone 🌸
• cpsz — the console storage zone 🎀
• fpszs — the ftrace storage zones 🦋
• kmsg_max_cnt — max count of kpszs
• kmsg_read_cnt — counter of total read kmsg dumps
• kmsg_write_cnt — counter of total kmsg dump writes
• pmsg_read_cnt — counter of total read pmsg zone
• console_read_cnt — counter of total read console zone
• ftrace_max_cnt — max count of fpszs
• ftrace_read_cnt — counter of max read ftrace zone
• oops_counter — counter of oops dumps 😭
• panic_counter — counter of panic dumps 💀
• recovered — whether finished recovering data from storage. literally the "are we done yet" flag ✨
• on_panic — whether panic is happening. and yes, that's a whole mood 🔥
• pstore_zone_info_lock — lock to pstore_zone_info 🔒
• pstore_zone_info — information from backend
• pstore — structure for pstore

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🫶 SEE ALSO 🫶

go read the Kernel file ./fs/pstore/zone.c — that's the source of truth bestie, iykyk. and while you're there, say hi to:

• struct psz_buffer(9)
• struct psz_kmsg_header(9)
• struct pstore_zone(9)
• enum psz_flush_mode(9)
• psz_recovery(9)
• register_pstore_zone(9)
• unregister_pstore_zone(9)

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and that's the whole page, periodt 💅 shoutout to ./fs/pstore and the October 2026 release — this one's dated and it ATE, go read the rest of the kernel API manual when you're done slaying here ⭐💜