debuggers.hg
changeset 21227:9d5ecf79f1b5
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 <keir.fraser@citrix.com>
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 <keir.fraser@citrix.com>
author | Keir Fraser <keir.fraser@citrix.com> |
---|---|
date | Thu Apr 15 12:21:00 2010 +0100 (2010-04-15) |
parents | 11423ce78ee0 |
children | 960ed5e75e64 |
files | xen/arch/x86/acpi/power.c |
line diff
1.1 --- a/xen/arch/x86/acpi/power.c Thu Apr 15 11:36:20 2010 +0100 1.2 +++ b/xen/arch/x86/acpi/power.c Thu Apr 15 12:21:00 2010 +0100 1.3 @@ -82,16 +82,12 @@ static void freeze_domains(void) 1.4 rcu_read_lock(&domlist_read_lock); 1.5 for_each_domain ( d ) 1.6 { 1.7 - switch ( d->domain_id ) 1.8 + for_each_vcpu ( d, v ) 1.9 { 1.10 - case 0: 1.11 - for_each_vcpu ( d, v ) 1.12 - if ( v != current ) 1.13 - vcpu_pause(v); 1.14 - break; 1.15 - default: 1.16 - domain_pause(d); 1.17 - break; 1.18 + if ( v != current ) 1.19 + vcpu_pause(v); 1.20 + else 1.21 + vcpu_pause_nosync(v); 1.22 } 1.23 } 1.24 rcu_read_unlock(&domlist_read_lock); 1.25 @@ -105,17 +101,8 @@ static void thaw_domains(void) 1.26 rcu_read_lock(&domlist_read_lock); 1.27 for_each_domain ( d ) 1.28 { 1.29 - switch ( d->domain_id ) 1.30 - { 1.31 - case 0: 1.32 - for_each_vcpu ( d, v ) 1.33 - if ( v != current ) 1.34 - vcpu_unpause(v); 1.35 - break; 1.36 - default: 1.37 - domain_unpause(d); 1.38 - break; 1.39 - } 1.40 + for_each_vcpu ( d, v ) 1.41 + vcpu_unpause(v); 1.42 } 1.43 rcu_read_unlock(&domlist_read_lock); 1.44 }