diff options
| author | Torvald Riegel <triegel@redhat.com> | 2015-06-23 15:22:25 +0200 |
|---|---|---|
| committer | Torvald Riegel <triegel@redhat.com> | 2015-06-30 15:57:15 +0200 |
| commit | 4eb984d3ab5641ce7992204756ac15a61f5f7181 (patch) | |
| tree | 12603bae9d2582033a3186174d1379121e1ea642 /sysdeps/unix/sysv/linux/sparc/lowlevellock.h | |
| parent | e02920bc029019443326eecaa7b267b78ff2892e (diff) | |
Clean up BUSY_WAIT_NOP and atomic_delay.
This patch combines BUSY_WAIT_NOP and atomic_delay into a new
atomic_spin_nop function and adjusts all clients. The new function is
put into atomic.h because what is best done in a spin loop is
architecture-specific, and atomics must be used for spinning. The
function name is meant to tell users that this has no effect on
synchronization semantics but is a performance aid for spinning.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/lowlevellock.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/lowlevellock.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/sysdeps/unix/sysv/linux/sparc/lowlevellock.h index 9aefd9eb59..7608c01d17 100644 --- a/sysdeps/unix/sysv/linux/sparc/lowlevellock.h +++ b/sysdeps/unix/sysv/linux/sparc/lowlevellock.h @@ -25,12 +25,6 @@ #include <atomic.h> #include <kernel-features.h> -#ifndef __sparc32_atomic_do_lock -/* Delay in spinlock loop. */ -extern void __cpu_relax (void); -#define BUSY_WAIT_NOP __cpu_relax () -#endif - #include <lowlevellock-futex.h> static inline int |