diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h index 6ed21fdc14..e13358ffef 100644 --- a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h @@ -30,6 +30,7 @@ #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 #define FUTEX_REQUEUE 3 +#define FUTEX_CMP_REQUEUE 4 /* Delay in spinlock loop. */ #define BUSY_WAIT_NOP asm ("hint @pause") @@ -52,11 +53,13 @@ _r10 == -1 ? -_retval : _retval; \ }) -#define lll_futex_requeue(ftx, nr_wake, nr_move, mutex) \ +/* Returns non-zero if error happened, zero if success. */ +#define lll_futex_requeue(ftx, nr_wake, nr_move, mutex, val) \ ({ \ - DO_INLINE_SYSCALL(futex, 5, (long) (ftx), FUTEX_REQUEUE, (int) (nr_wake), \ - (int) (nr_move), (long) (mutex)); \ - _r10 == -1 ? -_retval : _retval; \ + DO_INLINE_SYSCALL(futex, 6, (long) (ftx), FUTEX_CMP_REQUEUE, \ + (int) (nr_wake), (int) (nr_move), (long) (mutex), \ + (int) val); \ + _r10 == -1; \ }) |