From 0e697bad53d50888b82c2fb1b024709244a52b7c Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Thu, 15 Apr 2010 12:21:00 +0100 Subject: [PATCH] acpi sleep: domain_freeze() pauses all vcpus, but does not sync the current vcpu (since that would obviously deadlock). This simplifies thaw_domains() which is required now that thawing can happen in deifferent context to freeze_domains(). Signed-off-by: Keir Fraser --- xen/arch/x86/acpi/power.c | 27 +++++++-------------------- 1 file changed, 7 insertions(+), 20 deletions(-) diff --git a/xen/arch/x86/acpi/power.c b/xen/arch/x86/acpi/power.c index 0252ff4fbc..7978e01de2 100644 --- a/xen/arch/x86/acpi/power.c +++ b/xen/arch/x86/acpi/power.c @@ -82,16 +82,12 @@ static void freeze_domains(void) rcu_read_lock(&domlist_read_lock); for_each_domain ( d ) { - switch ( d->domain_id ) + for_each_vcpu ( d, v ) { - case 0: - for_each_vcpu ( d, v ) - if ( v != current ) - vcpu_pause(v); - break; - default: - domain_pause(d); - break; + if ( v != current ) + vcpu_pause(v); + else + vcpu_pause_nosync(v); } } rcu_read_unlock(&domlist_read_lock); @@ -105,17 +101,8 @@ static void thaw_domains(void) rcu_read_lock(&domlist_read_lock); for_each_domain ( d ) { - switch ( d->domain_id ) - { - case 0: - for_each_vcpu ( d, v ) - if ( v != current ) - vcpu_unpause(v); - break; - default: - domain_unpause(d); - break; - } + for_each_vcpu ( d, v ) + vcpu_unpause(v); } rcu_read_unlock(&domlist_read_lock); } -- 2.30.2