diff options
| author | Peter Lieven <pl@kamp.de> | 2013-10-24 12:06:52 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2013-11-28 10:30:51 +0100 |
| commit | d32f35cbc5a87af5e1100dd55074a79fc2cb5307 (patch) | |
| tree | 55fa60fcbf692789af57904cb5bc84be7b649df7 /block-migration.c | |
| parent | aa7bfbfff792538a9eeefe879fc4c629aa0b4203 (diff) | |
block: introduce BDRV_REQ_MAY_UNMAP request flag
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block-migration.c')
| -rw-r--r-- | block-migration.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/block-migration.c b/block-migration.c index 713a8e36e1..fc4ef93ea2 100644 --- a/block-migration.c +++ b/block-migration.c @@ -780,7 +780,8 @@ static int block_load(QEMUFile *f, void *opaque, int version_id) } if (flags & BLK_MIG_FLAG_ZERO_BLOCK) { - ret = bdrv_write_zeroes(bs, addr, nr_sectors, 0); + ret = bdrv_write_zeroes(bs, addr, nr_sectors, + BDRV_REQ_MAY_UNMAP); } else { buf = g_malloc(BLOCK_SIZE); qemu_get_buffer(f, buf, BLOCK_SIZE); |