-#define LOWEST_BIT_SET(x) ((x) & ~((x) - 1))
-
-/*
- * Debugging
- */
-extern unsigned int portal_subsystem_debug;
-extern unsigned int portal_stack;
-extern unsigned int portal_debug;
-extern unsigned int portal_printk;
-/* Debugging subsystems (32 bits, non-overlapping) */
-#define S_UNDEFINED (1 << 0)
-#define S_MDC (1 << 1)
-#define S_MDS (1 << 2)
-#define S_OSC (1 << 3)
-#define S_OST (1 << 4)
-#define S_CLASS (1 << 5)
-#define S_LOG (1 << 6)
-#define S_LLITE (1 << 7)
-#define S_RPC (1 << 8)
-#define S_MGMT (1 << 9)
-#define S_PORTALS (1 << 10)
-#define S_SOCKNAL (1 << 11)
-#define S_QSWNAL (1 << 12)
-#define S_PINGER (1 << 13)
-#define S_FILTER (1 << 14)
-#define S_PTLBD (1 << 15)
-#define S_ECHO (1 << 16)
-#define S_LDLM (1 << 17)
-#define S_LOV (1 << 18)
-#define S_GMNAL (1 << 19)
-#define S_PTLROUTER (1 << 20)
-#define S_COBD (1 << 21)
-
-/* If you change these values, please keep portals/utils/debug.c
- * up to date! */
-
-/* Debugging masks (32 bits, non-overlapping) */
-#define D_TRACE (1 << 0) /* ENTRY/EXIT markers */
-#define D_INODE (1 << 1)
-#define D_SUPER (1 << 2)
-#define D_EXT2 (1 << 3) /* anything from ext2_debug */
-#define D_MALLOC (1 << 4) /* print malloc, free information */
-#define D_CACHE (1 << 5) /* cache-related items */
-#define D_INFO (1 << 6) /* general information */
-#define D_IOCTL (1 << 7) /* ioctl related information */
-#define D_BLOCKS (1 << 8) /* ext2 block allocation */
-#define D_NET (1 << 9) /* network communications */
-#define D_WARNING (1 << 10)
-#define D_BUFFS (1 << 11)
-#define D_OTHER (1 << 12)
-#define D_DENTRY (1 << 13)
-#define D_PORTALS (1 << 14) /* ENTRY/EXIT markers */
-#define D_PAGE (1 << 15) /* bulk page handling */
-#define D_DLMTRACE (1 << 16)
-#define D_ERROR (1 << 17) /* CERROR(...) == CDEBUG (D_ERROR, ...) */
-#define D_EMERG (1 << 18) /* CEMERG(...) == CDEBUG (D_EMERG, ...) */
-#define D_HA (1 << 19) /* recovery and failover */
-#define D_RPCTRACE (1 << 20) /* for distributed debugging */
-#define D_VFSTRACE (1 << 21)
-
-#ifdef __KERNEL__
-# include <linux/sched.h> /* THREAD_SIZE */
-#else
-# define THREAD_SIZE 8192
-#endif
-
-#ifdef __KERNEL__
-# ifdef __ia64__
-# define CDEBUG_STACK (THREAD_SIZE - \
- ((unsigned long)__builtin_dwarf_cfa() & \
- (THREAD_SIZE - 1)))
-# else
-# define CDEBUG_STACK (THREAD_SIZE - \
- ((unsigned long)__builtin_frame_address(0) & \
- (THREAD_SIZE - 1)))
-# endif
-
-#define CHECK_STACK(stack) \
- do { \
- if ((stack) > 3*THREAD_SIZE/4 && (stack) > portal_stack) { \
- portals_debug_msg(DEBUG_SUBSYSTEM, D_ERROR, \
- __FILE__, __FUNCTION__, __LINE__, \
- (stack), \
- "maximum lustre stack %u\n", \
- portal_stack = (stack)); \
- /*panic("LBUG");*/ \
- } \
- } while (0)
-#else /* __KERNEL__ */
-#define CHECK_STACK(stack) do { } while(0)
-#define CDEBUG_STACK (0L)
-#endif /* __KERNEL__ */
-
-#if 1
-#define CDEBUG(mask, format, a...) \
-do { \
- CHECK_STACK(CDEBUG_STACK); \
- if (!(mask) || ((mask) & (D_ERROR | D_EMERG)) || \
- (portal_debug & (mask) && \
- portal_subsystem_debug & DEBUG_SUBSYSTEM)) \
- portals_debug_msg(DEBUG_SUBSYSTEM, mask, \
- __FILE__, __FUNCTION__, __LINE__, \
- CDEBUG_STACK, format, ## a); \
-} while (0)
-
-#define CWARN(format, a...) CDEBUG(D_WARNING, format, ## a)
-#define CERROR(format, a...) CDEBUG(D_ERROR, format, ## a)
-#define CEMERG(format, a...) CDEBUG(D_EMERG, format, ## a)
-
-#define GOTO(label, rc) \
-do { \
- long GOTO__ret = (long)(rc); \
- CDEBUG(D_TRACE,"Process leaving via %s (rc=%lu : %ld : %lx)\n", \
- #label, (unsigned long)GOTO__ret, (signed long)GOTO__ret,\
- (signed long)GOTO__ret); \
- goto label; \
-} while (0)
-
-#define RETURN(rc) \
-do { \
- typeof(rc) RETURN__ret = (rc); \
- CDEBUG(D_TRACE, "Process leaving (rc=%lu : %ld : %lx)\n", \
- (long)RETURN__ret, (long)RETURN__ret, (long)RETURN__ret);\
- return RETURN__ret; \
-} while (0)
-
-#define ENTRY \
-do { \
- CDEBUG(D_TRACE, "Process entered\n"); \
-} while (0)
-
-#define EXIT \
-do { \
- CDEBUG(D_TRACE, "Process leaving\n"); \
-} while(0)
-#else
-#define CDEBUG(mask, format, a...) do { } while (0)
-#define CWARN(format, a...) do { } while (0)
-#define CERROR(format, a...) printk("<3>" format, ## a)
-#define CEMERG(format, a...) printk("<0>" format, ## a)
-#define GOTO(label, rc) do { (void)(rc); goto label; } while (0)
-#define RETURN(rc) return (rc)
-#define ENTRY do { } while (0)
-#define EXIT do { } while (0)
-#endif