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authorJohn Snow <jsnow@redhat.com>2015-11-05 18:13:17 -0500
committerKevin Wolf <kwolf@redhat.com>2015-11-12 16:22:44 +0100
commit78f51fde88d1925b5ae51ba789339baa9ff72ad1 (patch)
tree5e50d2300ce5e92a1b94de2a61bf7b3dcfcd2ec3 /blockdev.c
parentc347b2c62a53b73cf6cc31225feb125d2f20f186 (diff)
block: Add BlockJobTxn support to backup_run
Allow a BlockJobTxn to be passed into backup_run, which will allow the job to join a transactional group if present. Propagate this new parameter outward into new QMP helper functions in blockdev.c to allow transaction commands to pass forward their BlockJobTxn object in a forthcoming patch. [split up from a patch originally by Stefan and Fam. --js] Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1446765200-3054-12-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'blockdev.c')
-rw-r--r--blockdev.c112
1 files changed, 84 insertions, 28 deletions
diff --git a/blockdev.c b/blockdev.c
index 944525806e..5ed4284fbf 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1716,6 +1716,18 @@ typedef struct DriveBackupState {
BlockJob *job;
} DriveBackupState;
+static void do_drive_backup(const char *device, const char *target,
+ bool has_format, const char *format,
+ enum MirrorSyncMode sync,
+ bool has_mode, enum NewImageMode mode,
+ bool has_speed, int64_t speed,
+ bool has_bitmap, const char *bitmap,
+ bool has_on_source_error,
+ BlockdevOnError on_source_error,
+ bool has_on_target_error,
+ BlockdevOnError on_target_error,
+ BlockJobTxn *txn, Error **errp);
+
static void drive_backup_prepare(BlkActionState *common, Error **errp)
{
DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common);
@@ -1744,15 +1756,15 @@ static void drive_backup_prepare(BlkActionState *common, Error **errp)
bdrv_drained_begin(blk_bs(blk));
state->bs = blk_bs(blk);
- qmp_drive_backup(backup->device, backup->target,
- backup->has_format, backup->format,
- backup->sync,
- backup->has_mode, backup->mode,
- backup->has_speed, backup->speed,
- backup->has_bitmap, backup->bitmap,
- backup->has_on_source_error, backup->on_source_error,
- backup->has_on_target_error, backup->on_target_error,
- &local_err);
+ do_drive_backup(backup->device, backup->target,
+ backup->has_format, backup->format,
+ backup->sync,
+ backup->has_mode, backup->mode,
+ backup->has_speed, backup->speed,
+ backup->has_bitmap, backup->bitmap,
+ backup->has_on_source_error, backup->on_source_error,
+ backup->has_on_target_error, backup->on_target_error,
+ NULL, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
@@ -1789,6 +1801,15 @@ typedef struct BlockdevBackupState {
AioContext *aio_context;
} BlockdevBackupState;
+static void do_blockdev_backup(const char *device, const char *target,
+ enum MirrorSyncMode sync,
+ bool has_speed, int64_t speed,
+ bool has_on_source_error,
+ BlockdevOnError on_source_error,
+ bool has_on_target_error,
+ BlockdevOnError on_target_error,
+ BlockJobTxn *txn, Error **errp);
+
static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
{
BlockdevBackupState *state = DO_UPCAST(BlockdevBackupState, common, common);
@@ -1827,12 +1848,12 @@ static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
state->bs = blk_bs(blk);
bdrv_drained_begin(state->bs);
- qmp_blockdev_backup(backup->device, backup->target,
- backup->sync,
- backup->has_speed, backup->speed,
- backup->has_on_source_error, backup->on_source_error,
- backup->has_on_target_error, backup->on_target_error,
- &local_err);
+ do_blockdev_backup(backup->device, backup->target,
+ backup->sync,
+ backup->has_speed, backup->speed,
+ backup->has_on_source_error, backup->on_source_error,
+ backup->has_on_target_error, backup->on_target_error,
+ NULL, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
@@ -2895,15 +2916,17 @@ out:
aio_context_release(aio_context);
}
-void qmp_drive_backup(const char *device, const char *target,
- bool has_format, const char *format,
- enum MirrorSyncMode sync,
- bool has_mode, enum NewImageMode mode,
- bool has_speed, int64_t speed,
- bool has_bitmap, const char *bitmap,
- bool has_on_source_error, BlockdevOnError on_source_error,
- bool has_on_target_error, BlockdevOnError on_target_error,
- Error **errp)
+static void do_drive_backup(const char *device, const char *target,
+ bool has_format, const char *format,
+ enum MirrorSyncMode sync,
+ bool has_mode, enum NewImageMode mode,
+ bool has_speed, int64_t speed,
+ bool has_bitmap, const char *bitmap,
+ bool has_on_source_error,
+ BlockdevOnError on_source_error,
+ bool has_on_target_error,
+ BlockdevOnError on_target_error,
+ BlockJobTxn *txn, Error **errp)
{
BlockBackend *blk;
BlockDriverState *bs;
@@ -3018,7 +3041,7 @@ void qmp_drive_backup(const char *device, const char *target,
backup_start(bs, target_bs, speed, sync, bmap,
on_source_error, on_target_error,
- block_job_cb, bs, &local_err);
+ block_job_cb, bs, txn, &local_err);
if (local_err != NULL) {
bdrv_unref(target_bs);
error_propagate(errp, local_err);
@@ -3029,19 +3052,37 @@ out:
aio_context_release(aio_context);
}
+void qmp_drive_backup(const char *device, const char *target,
+ bool has_format, const char *format,
+ enum MirrorSyncMode sync,
+ bool has_mode, enum NewImageMode mode,
+ bool has_speed, int64_t speed,
+ bool has_bitmap, const char *bitmap,
+ bool has_on_source_error, BlockdevOnError on_source_error,
+ bool has_on_target_error, BlockdevOnError on_target_error,
+ Error **errp)
+{
+ return do_drive_backup(device, target, has_format, format, sync,
+ has_mode, mode, has_speed, speed,
+ has_bitmap, bitmap,
+ has_on_source_error, on_source_error,
+ has_on_target_error, on_target_error,
+ NULL, errp);
+}
+
BlockDeviceInfoList *qmp_query_named_block_nodes(Error **errp)
{
return bdrv_named_nodes_list(errp);
}
-void qmp_blockdev_backup(const char *device, const char *target,
+void do_blockdev_backup(const char *device, const char *target,
enum MirrorSyncMode sync,
bool has_speed, int64_t speed,
bool has_on_source_error,
BlockdevOnError on_source_error,
bool has_on_target_error,
BlockdevOnError on_target_error,
- Error **errp)
+ BlockJobTxn *txn, Error **errp)
{
BlockBackend *blk, *target_blk;
BlockDriverState *bs;
@@ -3089,7 +3130,7 @@ void qmp_blockdev_backup(const char *device, const char *target,
bdrv_ref(target_bs);
bdrv_set_aio_context(target_bs, aio_context);
backup_start(bs, target_bs, speed, sync, NULL, on_source_error,
- on_target_error, block_job_cb, bs, &local_err);
+ on_target_error, block_job_cb, bs, txn, &local_err);
if (local_err != NULL) {
bdrv_unref(target_bs);
error_propagate(errp, local_err);
@@ -3098,6 +3139,21 @@ out:
aio_context_release(aio_context);
}
+void qmp_blockdev_backup(const char *device, const char *target,
+ enum MirrorSyncMode sync,
+ bool has_speed, int64_t speed,
+ bool has_on_source_error,
+ BlockdevOnError on_source_error,
+ bool has_on_target_error,
+ BlockdevOnError on_target_error,
+ Error **errp)
+{
+ do_blockdev_backup(device, target, sync, has_speed, speed,
+ has_on_source_error, on_source_error,
+ has_on_target_error, on_target_error,
+ NULL, errp);
+}
+
void qmp_drive_mirror(const char *device, const char *target,
bool has_format, const char *format,
bool has_node_name, const char *node_name,