diff options
| author | Max Reitz <mreitz@redhat.com> | 2017-06-13 22:20:53 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-07-11 17:45:01 +0200 |
| commit | 7ea37c30660d4cd6aca21a324fabefe23b89f931 (patch) | |
| tree | 897afd4ead51179dfb1473bfa44a92a4de121f1f /block/qcow.c | |
| parent | 8243ccb7433e59a3faa3cca27fb6c40d6da2b37c (diff) | |
| download | qemu-7ea37c30660d4cd6aca21a324fabefe23b89f931.tar.gz | |
block: Add PreallocMode to bdrv_truncate()
For block drivers that just pass a truncate request to the underlying
protocol, we can now pass the preallocation mode instead of aborting if
it is not PREALLOC_MODE_OFF.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170613202107.10125-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/qcow.c')
| -rw-r--r-- | block/qcow.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/block/qcow.c b/block/qcow.c index 2002c169be..10c96b86aa 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -443,7 +443,8 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, /* round to cluster size */ cluster_offset = (cluster_offset + s->cluster_size - 1) & ~(s->cluster_size - 1); - bdrv_truncate(bs->file, cluster_offset + s->cluster_size, NULL); + bdrv_truncate(bs->file, cluster_offset + s->cluster_size, + PREALLOC_MODE_OFF, NULL); /* if encrypted, we must initialize the cluster content which won't be written */ if (bs->encrypted && @@ -923,7 +924,8 @@ static int qcow_make_empty(BlockDriverState *bs) if (bdrv_pwrite_sync(bs->file, s->l1_table_offset, s->l1_table, l1_length) < 0) return -1; - ret = bdrv_truncate(bs->file, s->l1_table_offset + l1_length, NULL); + ret = bdrv_truncate(bs->file, s->l1_table_offset + l1_length, + PREALLOC_MODE_OFF, NULL); if (ret < 0) return ret; |