On November 24, 2020 5:32 pm, Fabian Grünbichler wrote:
> Tested-by: Fabian Grünbichler <f.gruenbich...@proxmox.com>
>
> requires now updated patch from <20201124154122.22202-2-s.rei...@proxmox.com>:
>
> "[PATCH v3 pve-qemu 1/3] update patches with squashed in 'include library
> version'"
and applied now after that one ;)
>
> On November 10, 2020 5:16 pm, Stefan Reiter wrote:
>> ...and literal cleanup, as in, call save_cleanup after success or error.
>>
>> Signed-off-by: Stefan Reiter <s.rei...@proxmox.com>
>> ---
>>
>> I found it more confusing to set opaque to a value and then never use it, so
>> I
>> put it back to NULL and documented it.
>>
>> Behaviour tested to be the same.
>>
>> ...igrate-dirty-bitmap-state-via-savevm.patch | 33 ++++++++++++-------
>> 1 file changed, 21 insertions(+), 12 deletions(-)
>>
>> diff --git
>> a/debian/patches/pve/0055-PVE-Migrate-dirty-bitmap-state-via-savevm.patch
>> b/debian/patches/pve/0055-PVE-Migrate-dirty-bitmap-state-via-savevm.patch
>> index 77c0c76..a39e3ca 100644
>> --- a/debian/patches/pve/0055-PVE-Migrate-dirty-bitmap-state-via-savevm.patch
>> +++ b/debian/patches/pve/0055-PVE-Migrate-dirty-bitmap-state-via-savevm.patch
>> @@ -13,13 +13,13 @@ safe migration is possible and makes sense.
>>
>> Signed-off-by: Stefan Reiter <s.rei...@proxmox.com>
>> ---
>> - include/migration/misc.h | 3 ++
>> - migration/Makefile.objs | 1 +
>> - migration/pbs-state.c | 97 ++++++++++++++++++++++++++++++++++++++++
>> - pve-backup.c | 1 +
>> - qapi/block-core.json | 6 +++
>> - softmmu/vl.c | 1 +
>> - 6 files changed, 109 insertions(+)
>> + include/migration/misc.h | 3 ++
>> + migration/Makefile.objs | 1 +
>> + migration/pbs-state.c | 106 +++++++++++++++++++++++++++++++++++++++
>> + pve-backup.c | 1 +
>> + qapi/block-core.json | 6 +++
>> + softmmu/vl.c | 1 +
>> + 6 files changed, 118 insertions(+)
>> create mode 100644 migration/pbs-state.c
>>
>> diff --git a/include/migration/misc.h b/include/migration/misc.h
>> @@ -48,10 +48,10 @@ index 0fc619e380..20b3792599 100644
>> common-obj-$(CONFIG_RDMA) += rdma.o
>> diff --git a/migration/pbs-state.c b/migration/pbs-state.c
>> new file mode 100644
>> -index 0000000000..c711498c3e
>> +index 0000000000..29f2b3860d
>> --- /dev/null
>> +++ b/migration/pbs-state.c
>> -@@ -0,0 +1,97 @@
>> +@@ -0,0 +1,106 @@
>> +/*
>> + * PBS (dirty-bitmap) state migration
>> + */
>> @@ -67,6 +67,7 @@ index 0000000000..c711498c3e
>> + bool active;
>> +} PBSState;
>> +
>> ++/* state is accessed via this static variable directly, 'opaque' is NULL */
>> +static PBSState pbs_state;
>> +
>> +static void pbs_state_save_pending(QEMUFile *f, void *opaque,
>> @@ -115,8 +116,9 @@ index 0000000000..c711498c3e
>> +
>> +static bool pbs_state_is_active(void *opaque)
>> +{
>> -+ // we need to be return active once, else .save_setup is never called,
>> but,
>> -+ // if we'd just would return true, we'd freeze the migration for ~ 5 -
>> 10s
>> ++ /* we need to return active exactly once, else .save_setup is never
>> called,
>> ++ * but if we'd just return true the migration doesn't make progress
>> since
>> ++ * it'd be waiting for us */
>> + return pbs_state.active;
>> +}
>> +
>> @@ -133,6 +135,12 @@ index 0000000000..c711498c3e
>> + return false;
>> +}
>> +
>> ++static void pbs_state_save_cleanup(void *opaque)
>> ++{
>> ++ /* reset active after migration succeeds or fails */
>> ++ pbs_state.active = false;
>> ++}
>> ++
>> +static SaveVMHandlers savevm_pbs_state_handlers = {
>> + .save_setup = pbs_state_save_setup,
>> + .has_postcopy = pbs_state_has_postcopy,
>> @@ -140,6 +148,7 @@ index 0000000000..c711498c3e
>> + .is_active_iterate = pbs_state_is_active_iterate,
>> + .load_state = pbs_state_load,
>> + .is_active = pbs_state_is_active,
>> ++ .save_cleanup = pbs_state_save_cleanup,
>> +};
>> +
>> +void pbs_state_mig_init(void)
>> @@ -147,7 +156,7 @@ index 0000000000..c711498c3e
>> + pbs_state.active = true;
>> + register_savevm_live("pbs-state", 0, 1,
>> + &savevm_pbs_state_handlers,
>> -+ &pbs_state);
>> ++ NULL);
>> +}
>> diff --git a/pve-backup.c b/pve-backup.c
>> index c7cde0fb0e..f65f1dda26 100644
>> --
>> 2.20.1
>>
>>
>>
>> _______________________________________________
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>> pve-devel@lists.proxmox.com
>> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
>>
>>
>>
>
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