STRUCT FPROBE(9)

🌸 NAME 🌸

hiii bestie 💖 this is the Kernel API Manual page for struct fprobe(9), and it's literally the ftrace-based probe struct. that's the whole vibe ✨

struct fprobe — ftrace based probe. no cap, that's the name 🫶

✨ SYNOPSIS ✨

okay so the struct is exactly this, character for character — don't touch it, bestie:

       struct fprobe {
           unsigned long           nmissed;
           unsigned int            flags;
           size_t entry_data_size;
           fprobe_entry_cb entry_handler;
           fprobe_exit_cb exit_handler;
           struct fprobe_hlist     *hlist_array;
        };

keep every field exactly as written, periodt 💅

💅 Members 💅

• nmissed — the counter for missing events. keeping track, bestie 🎀
• flags — the status flag. status-check energy ✨
• entry_data_size — the private data storage size. it's giving "how much private-data storage" 🦋
• entry_handler — the callback function for function entry. main character callback for entry 🔥
• exit_handler — the callback function for function exit. callback for exit, but make it cute 💜
• hlist_array — the fprobe_hlist for fprobe search from IP hash table. hash-table search vibes, iykyk 🌈

🦋 SEE ALSO 🦋

go look at the kernel file ./include/linux/fprobe.h, and these pages too, bestie:

• struct fprobe_hlist_node(9)
• struct fprobe_hlist(9)
• disable_fprobe(9)
• enable_fprobe(9)

okay that's the page 🫶 source/version vibes: ./include/linux, dated October 2026, and it's the struct fprobe(9) page. mwah 💋