On Wed, May 15, 2013 at 04:42:57PM +0200, Paolo Bonzini wrote:
Il 15/05/2013 16:34, Stefan Hajnoczi ha scritto:
The bdrv_add_before_write_cb() function installs a callback that is
invoked before a write request is processed. This will be used to
implement copy-on-write point-in-time
The bdrv_add_before_write_cb() function installs a callback that is
invoked before a write request is processed. This will be used to
implement copy-on-write point-in-time snapshots where we need to copy
out old data before overwriting it.
Signed-off-by: Stefan Hajnoczi stefa...@redhat.com
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Il 15/05/2013 16:34, Stefan Hajnoczi ha scritto:
The bdrv_add_before_write_cb() function installs a callback that is
invoked before a write request is processed. This will be used to
implement copy-on-write point-in-time snapshots where we need to copy
out old data before overwriting it.
Reviewed the code, except Paolo's comments, function seems fine.
Il 15/05/2013 16:34, Stefan Hajnoczi ha scritto:
The bdrv_add_before_write_cb() function installs a callback that is
invoked before a write request is processed. This will be used to
implement copy-on-write point-in-time
