[libvirt] [PATCHv2 0/2] add support for btrfs COW copy
If VIR_STORAGE_VOL_CREATE_REFLINK is specified,
try to use btrfs COW copy;
v2: check BTRFS_IOC_CLONE in configure.ac
error out if COW copy is not supported
Chen Hanxiao (2):
storage: introduce btrfsCloneFile() for COW copy
storage: try to perform btrfs clone if possible
configure.ac | 12 +++++++
include/libvirt/libvirt-storage.h | 1 +
src/storage/storage_backend.c | 67 +++++++++++++++++++++++++++++++++++----
src/storage/storage_backend_fs.c | 8 +++--
src/storage/storage_driver.c | 4 ++-
5 files changed, 82 insertions(+), 10 deletions(-)
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2.1.0