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Fix datarace by making the common resource log_prefix thread local #10567

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2 changes: 1 addition & 1 deletion include/ofi.h
Original file line number Diff line number Diff line change
Expand Up @@ -320,7 +320,7 @@ struct ofi_filter {

extern struct ofi_filter prov_log_filter;
extern struct fi_provider core_prov;
extern const char *log_prefix;
extern _Thread_local const char *log_prefix;

void ofi_create_filter(struct ofi_filter *filter, const char *env_name);
void ofi_free_filter(struct ofi_filter *filter);
Expand Down
2 changes: 1 addition & 1 deletion src/common.c
Original file line number Diff line number Diff line change
Expand Up @@ -2429,4 +2429,4 @@ size_t ofi_vrb_speed(uint8_t speed, uint8_t width)
}

/* log_prefix is used by fi_log and by prov/util */
const char *log_prefix = "";
_Thread_local const char *log_prefix = "";