At Tue, 16 Apr 2013 00:15:04 +0800, Liu Yuan wrote: > > From: Liu Yuan <tailai...@taobao.com> > > The 'TRIM' command from VM that is to release underlying data storage for > better thin-provision is already supported by the Sheepdog. > > This patch adds the TRIM support at QEMU part. > > For older Sheepdog that doesn't support it, we return 0(success) to upper > layer. > > Cc: MORITA Kazutaka <morita.kazut...@lab.ntt.co.jp> > Cc: Kevin Wolf <kw...@redhat.com> > Cc: Stefan Hajnoczi <stefa...@redhat.com> > Cc: Paolo Bonzini <pbonz...@redhat.com> > Signed-off-by: Liu Yuan <tailai...@taobao.com> > --- > v5: > - adjust macro numbering > v4: > - adjust discard macro > - return success when operation is not supported by sheep > - add coroutine_fn marker > v3: > - fix a silly accidental deletion of 'default' in switch clause. > v2: > - skip the object when it is not allocated > > block/sheepdog.c | 56 > +++++++++++++++++++++++++++++++++++++++++++++++++++++- > 1 file changed, 55 insertions(+), 1 deletion(-)
Reviewed-by: MORITA Kazutaka <morita.kazut...@lab.ntt.co.jp>
