nptl: Remove clockwait_tid

It can be replaced with a __futex_abstimed_wait_cancelable64 call,
with the advantage that there is no need to further clock adjustments
to create a absolute timeout.  It allows to remove the now ununsed
futex_timed_wait_cancel64 internal function.

Checked on x86_64-linux-gnu and i686-linux-gnu.

Reviewed-by: Lukasz Majewski <lukma@denx.de>

1 files changed, 0 insertions, 49 deletions

diff --git a/sysdeps/nptl/futex-internal.h b/sysdeps/nptl/futex-internal.h
index 96d1318091..d5f13d15fb 100644
--- a/sysdeps/nptl/futex-internal.h
+++ b/sysdeps/nptl/futex-internal.h
@@ -390,55 +390,6 @@ futex_unlock_pi (unsigned int *futex_word, int private)
     }
 }
 
-static __always_inline int
-futex_timed_wait_cancel64 (pid_t *tidp,  pid_t tid,
-                           const struct __timespec64 *timeout, int private)
-{
-  int err = INTERNAL_SYSCALL_CANCEL (futex_time64, tidp,
-                                     __lll_private_flag (FUTEX_WAIT, private),
-                                     tid, timeout);
-#ifndef __ASSUME_TIME64_SYSCALLS
-  if (err == -ENOSYS)
-    {
-      if (in_time_t_range (timeout->tv_sec))
-        {
-          struct timespec ts32 = valid_timespec64_to_timespec (*timeout);
-
-          err = INTERNAL_SYSCALL_CANCEL (futex, tidp,
-                                         __lll_private_flag (FUTEX_WAIT,
-                                                             private),
-                                         tid, &ts32);
-        }
-      else
-        err = -EOVERFLOW;
-    }
-#endif
-  switch (err)
-    {
-    case 0:
-    case -EAGAIN:
-    case -EINTR:
-    case -ETIMEDOUT:
-    case -EDEADLK:
-    case -ENOSYS:
-    case -EOVERFLOW:  /* Passed absolute timeout uses 64 bit time_t type, but
-                         underlying kernel does not support 64 bit time_t futex
-                         syscalls.  */
-    case -EPERM:  /*  The caller is not allowed to attach itself to the futex.
-		      Used to check if PI futexes are supported by the
-		      kernel.  */
-      return -err;
-
-    case -EINVAL: /* Either due to wrong alignment or due to the timeout not
-		     being normalized.  Must have been caused by a glibc or
-		     application bug.  */
-    case -EFAULT: /* Must have been caused by a glibc or application bug.  */
-    /* No other errors are documented at this time.  */
-    default:
-      futex_fatal_error ();
-    }
-}
-
 /* The futex_abstimed_wait_cancelable64 has been moved to a separate file
    to avoid problems with exhausting available registers on some architectures
    - e.g. on m68k architecture.  */