create_var_ref(9)

✨ NAME ✨

okay bestie, welcome to create_var_ref(9) from the Kernel API Manual — this one is literally about creating a variable reference and attaching it to a trigger. 💅

• create_var_ref — create a variable reference and attach it to trigger. periodt.

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🦋 SYNOPSIS 🦋

struct hist_field * create_var_ref (struct hist_trigger_data *hist_data
, struct hist_field *var_field , char *system , char *event_name );

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🎀 ARGUMENTS 🎀

• hist_data — the trigger that will be referencing the variable. she’s the main character here.
• var_field — the VAR field to create a reference to. yes bestie, that exact one.
• system — the optional system string. optional is the key word, iykyk.
• event_name — the optional event_name string. also optional, no cap.

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💅 DESCRIPTION 💅

okay so picture this: you give it a variable hist_field, and it creates a VAR_REF hist_field that represents a reference to it. the way that works is genuinely iconic. ✨

this function also adds the reference to the trigger that now references the variable. yup, it’s giving “attach the reference and go” energy. 🫶

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🌈 RETURN 🌈

the VAR_REF field if successful, NULL if not. simple as that, bestie. 💖

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🔥 SEE ALSO 🔥

• Kernel file ./kernel/trace/trace_events_hist.c
• check_field_for_var_ref(9)
• find_var_ref(9)
• find_any_var_ref(9)
• check_var_refs(9)
• create_field_var_hist(9)
• create_target_field_var(9)

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that’s the whole page, bestie — source/version corner: ./kernel/trace, date: October 2026. mwah 💋🎀💜