#ifndef __XFS_SUPPORT_KTRACE_H__
#define __XFS_SUPPORT_KTRACE_H__
-#include <spin.h>
-
/*
* Trace buffer entry structure.
*/
* Trace buffer header structure.
*/
typedef struct ktrace {
- lock_t kt_lock; /* mutex to guard counters */
int kt_nentries; /* number of entries in trace buf */
- int kt_index; /* current index in entries */
+ atomic_t kt_index; /* current index in entries */
+ unsigned int kt_index_mask;
int kt_rollover;
ktrace_entry_t *kt_entries; /* buffer of entries */
} ktrace_t;