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migration: convert post-copy to use QIOChannelBuffer

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The post-copy code does some I/O to/from an intermediate
in-memory buffer rather than direct to the underlying
I/O channel. Switch this code to use QIOChannelBuffer
instead of QEMUSizedBuffer.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1461751518-12128-12-git-send-email-berrange@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-04-27 11:05:01 +01:00 • committed by Amit Shah
parent d59ce6f344
commit 61b67d473d
4 changed files with 26 additions and 42 deletions
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4
docs/migration.txt
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@ -403,8 +403,8 @@ listen thread: --- page -- page -- page -- page -- page --
On receipt of CMD_PACKAGED (1)
All the data associated with the package - the ( ... ) section in the
diagram - is read into memory (into a QEMUSizedBuffer), and the main thread
recurses into qemu_loadvm_state_main to process the contents of the package (2)
diagram - is read into memory, and the main thread recurses into
qemu_loadvm_state_main to process the contents of the package (2)
which contains commands (3,6) and devices (4...)
On receipt of 'postcopy listen' - 3 -(i.e. the 1st command in the package)