mplock2.h

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    1 /*
    2  * SYS/MPLOCK2.H
    3  *
    4  * Implement the MP lock.  Note that debug operations
    5  */
    6 #ifndef _SYS_MPLOCK2_H_
    7 #define _SYS_MPLOCK2_H_
    8 
    9 #include <machine/atomic.h>
   10 #ifndef _SYS_THREAD_H_
   11 #include <sys/thread.h>
   12 #endif
   13 #ifndef _SYS_GLOBALDATA_H_
   14 #include <sys/globaldata.h>
   15 #endif
   16 
   17 /*
   18  * NOTE: try_mplock()/lwkt_trytoken() return non-zero on success.
   19  */
   20 #define get_mplock()            lwkt_gettoken(&mp_token)
   21 #define try_mplock()            lwkt_trytoken(&mp_token)
   22 #define rel_mplock()            lwkt_reltoken(&mp_token)
   23 #define get_mplock_count(td)    lwkt_cnttoken(&mp_token, td)
   24 
   25 void cpu_get_initial_mplock(void);
   26 
   27 #define MP_LOCK_HELD()          LWKT_TOKEN_HELD_EXCL(&mp_token)
   28 #define ASSERT_MP_LOCK_HELD()   ASSERT_LWKT_TOKEN_HELD_EXCL(&mp_token)
   29 
   30 #endif

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FreeBSD/Linux Kernel Cross Reference sys/sys/mplock2.h

FreeBSD/Linux Kernel Cross Reference
sys/sys/mplock2.h