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[Qemu-devel] [PATCH V5 3/5] block: package committing code in qmp_transa
From: |
Wenchao Xia |
Subject: |
[Qemu-devel] [PATCH V5 3/5] block: package committing code in qmp_transaction() |
Date: |
Wed, 8 May 2013 18:25:14 +0800 |
The code is simply moved into a separate function.
Signed-off-by: Wenchao Xia <address@hidden>
Reviewed-by: Kevin Wolf <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
---
blockdev.c | 19 ++++++++++++-------
1 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 0115f46..76f0532 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -871,6 +871,17 @@ static void external_snapshot_prepare(BlockdevAction
*action,
}
}
+static void external_snapshot_commit(BlkTransactionStates *states)
+{
+ /* This removes our old bs from the bdrv_states, and adds the new bs */
+ bdrv_append(states->new_bs, states->old_bs);
+ /* We don't need (or want) to use the transactional
+ * bdrv_reopen_multiple() across all the entries at once, because we
+ * don't want to abort all of them if one of them fails the reopen */
+ bdrv_reopen(states->new_bs, states->new_bs->open_flags & ~BDRV_O_RDWR,
+ NULL);
+}
+
/*
* 'Atomic' group snapshots. The snapshots are taken as a set, and if any fail
* then we do not pivot any of the devices in the group, and abandon the
@@ -916,13 +927,7 @@ void qmp_transaction(BlockdevActionList *dev_list, Error
**errp)
/* Now we are going to do the actual pivot. Everything up to this point
* is reversible, but we are committed at this point */
QSIMPLEQ_FOREACH(states, &snap_bdrv_states, entry) {
- /* This removes our old bs from the bdrv_states, and adds the new bs */
- bdrv_append(states->new_bs, states->old_bs);
- /* We don't need (or want) to use the transactional
- * bdrv_reopen_multiple() across all the entries at once, because we
- * don't want to abort all of them if one of them fails the reopen */
- bdrv_reopen(states->new_bs, states->new_bs->open_flags & ~BDRV_O_RDWR,
- NULL);
+ external_snapshot_commit(states);
}
/* success */
--
1.7.1
- [Qemu-devel] [PATCH V5 0/5] block: make qmp_transaction extendable, Wenchao Xia, 2013/05/08
- [Qemu-devel] [PATCH V5 1/5] block: package preparation code in qmp_transaction(), Wenchao Xia, 2013/05/08
- [Qemu-devel] [PATCH V5 3/5] block: package committing code in qmp_transaction(),
Wenchao Xia <=
- [Qemu-devel] [PATCH V5 2/5] block: move input parsing code in qmp_transaction(), Wenchao Xia, 2013/05/08
- [Qemu-devel] [PATCH V5 4/5] block: package rollback code in qmp_transaction(), Wenchao Xia, 2013/05/08
- [Qemu-devel] [PATCH V5 5/5] block: make all steps in qmp_transaction() as callback, Wenchao Xia, 2013/05/08
- Re: [Qemu-devel] [PATCH V5 0/5] block: make qmp_transaction extendable, Kevin Wolf, 2013/05/08