Module Name: src
Committed By: riastradh
Date: Sat Apr 9 23:45:02 UTC 2022
Modified Files:
src/sys/rump/net/lib/libshmif: if_shmem.c
Log Message:
if_shmem(4): Use membar_acquire/release for lock acquire/release.
To generate a diff of this commit:
cvs rdiff -u -r1.83 -r1.84 src/sys/rump/net/lib/libshmif/if_shmem.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/rump/net/lib/libshmif/if_shmem.c
diff -u src/sys/rump/net/lib/libshmif/if_shmem.c:1.83 src/sys/rump/net/lib/libshmif/if_shmem.c:1.84
--- src/sys/rump/net/lib/libshmif/if_shmem.c:1.83 Wed Jul 14 03:16:06 2021
+++ src/sys/rump/net/lib/libshmif/if_shmem.c Sat Apr 9 23:45:02 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: if_shmem.c,v 1.83 2021/07/14 03:16:06 ozaki-r Exp $ */
+/* $NetBSD: if_shmem.c,v 1.84 2022/04/09 23:45:02 riastradh Exp $ */
/*
* Copyright (c) 2009, 2010 Antti Kantee. All Rights Reserved.
@@ -28,7 +28,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_shmem.c,v 1.83 2021/07/14 03:16:06 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_shmem.c,v 1.84 2022/04/09 23:45:02 riastradh Exp $");
#include <sys/param.h>
#include <sys/atomic.h>
@@ -144,7 +144,7 @@ shmif_lockbus(struct shmif_mem *busmem)
}
continue;
}
- membar_enter();
+ membar_acquire();
}
static void
@@ -152,7 +152,7 @@ shmif_unlockbus(struct shmif_mem *busmem
{
unsigned int old __diagused;
- membar_exit();
+ membar_release();
old = atomic_swap_32(&busmem->shm_lock, LOCK_UNLOCKED);
KASSERT(old == LOCK_LOCKED);
}
