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authorMax Reitz <mreitz@redhat.com>2017-06-13 22:21:03 +0200
committerMax Reitz <mreitz@redhat.com>2017-07-11 17:45:02 +0200
commit12cc30a8cbdbb4c9c90cbffb970dfa679a1e3212 (patch)
treec11d287f068c09839334b15e1a0ab1934d35f3a6 /stubs/notify-event.c
parent95b98f343b054e100a905181cd140c653c80cbad (diff)
block/qcow2: Add qcow2_refcount_area()
This function creates a collection of self-describing refcount structures (including a new refcount table) at the end of a qcow2 image file. Optionally, these structures can also describe a number of additional clusters beyond themselves; this will be important for preallocated truncation, which will place the data clusters and L2 tables there. For now, we can use this function to replace the part of alloc_refcount_block() that grows the refcount table (from which it is actually derived). Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20170613202107.10125-13-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
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