Searched hist:e24e49e6 (Results 1 – 2 of 2) sorted by relevance
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H A D | qcow2.h | e24e49e6 Thu Feb 02 11:32:31 GMT 2012 Kevin Wolf <kwolf@redhat.com> qcow2: Update whole header at once
In order to switch the backing file, qcow2 issues multiple write requests that only changed a part of the image header. Any failure after the first one would leave the header in an corrupted state. With this patch, the whole header is written at once, so we can't fail in the middle.
At the same time, this gives us a reusable functions that updates all fields of the qcow2 header and not only the backing file.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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H A D | qcow2.c | e24e49e6 Thu Feb 02 11:32:31 GMT 2012 Kevin Wolf <kwolf@redhat.com> qcow2: Update whole header at once
In order to switch the backing file, qcow2 issues multiple write requests that only changed a part of the image header. Any failure after the first one would leave the header in an corrupted state. With this patch, the whole header is written at once, so we can't fail in the middle.
At the same time, this gives us a reusable functions that updates all fields of the qcow2 header and not only the backing file.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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