Module Name: src
Committed By: riastradh
Date: Sat Apr 9 23:35:58 UTC 2022
Modified Files:
src/sys/dev/audio: audio.c
Log Message:
audio(4): Use membar_acquire, not membar_enter.
Cheaper and adequate to make an atomic_swap into a load-acquire.
To generate a diff of this commit:
cvs rdiff -u -r1.122 -r1.123 src/sys/dev/audio/audio.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/audio/audio.c
diff -u src/sys/dev/audio/audio.c:1.122 src/sys/dev/audio/audio.c:1.123
--- src/sys/dev/audio/audio.c:1.122 Thu Mar 31 19:30:15 2022
+++ src/sys/dev/audio/audio.c Sat Apr 9 23:35:58 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: audio.c,v 1.122 2022/03/31 19:30:15 pgoyette Exp $ */
+/* $NetBSD: audio.c,v 1.123 2022/04/09 23:35:58 riastradh Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -181,7 +181,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.122 2022/03/31 19:30:15 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.123 2022/04/09 23:35:58 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "audio.h"
@@ -316,7 +316,7 @@ audio_mlog_flush(void)
/* Nothing to do if already in use ? */
if (atomic_swap_32(&mlog_inuse, 1) == 1)
return;
- membar_enter();
+ membar_acquire();
int rpage = mlog_wpage;
mlog_wpage ^= 1;
@@ -353,7 +353,7 @@ audio_mlog_printf(const char *fmt, ...)
mlog_drop++;
return;
}
- membar_enter();
+ membar_acquire();
va_start(ap, fmt);
len = vsnprintf(
@@ -1684,7 +1684,7 @@ audio_track_lock_tryenter(audio_track_t
if (atomic_swap_uint(&track->lock, 1) != 0)
return false;
- membar_enter();
+ membar_acquire();
return true;
}
