diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2019-01-15 20:39:06 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2019-03-08 12:26:46 +0100 |
| commit | 966b000f49c3f44d2853d691f6bbc2a4e1f2d0b0 (patch) | |
| tree | 43a2112e2da560e5b36ccc779c9069e38639aded /block/qcow2-snapshot.c | |
| parent | 37be14036b1a7ae066f76d3296bbd37b0c697637 (diff) | |
qcow2: External file I/O
This changes the qcow2 implementation to direct all guest data I/O to
s->data_file rather than bs->file, while metadata I/O still uses
bs->file. At the moment, this is still always the same, but soon we'll
add options to set s->data_file to an external data file.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow2-snapshot.c')
| -rw-r--r-- | block/qcow2-snapshot.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c index 20e8472191..5ae3407f68 100644 --- a/block/qcow2-snapshot.c +++ b/block/qcow2-snapshot.c @@ -184,7 +184,7 @@ static int qcow2_write_snapshots(BlockDriverState *bs) /* The snapshot list position has not yet been updated, so these clusters * must indeed be completely free */ - ret = qcow2_pre_write_overlap_check(bs, 0, offset, snapshots_size); + ret = qcow2_pre_write_overlap_check(bs, 0, offset, snapshots_size, false); if (ret < 0) { goto fail; } @@ -389,7 +389,7 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info) } ret = qcow2_pre_write_overlap_check(bs, 0, sn->l1_table_offset, - s->l1_size * sizeof(uint64_t)); + s->l1_size * sizeof(uint64_t), false); if (ret < 0) { goto fail; } @@ -528,7 +528,8 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id) } ret = qcow2_pre_write_overlap_check(bs, QCOW2_OL_ACTIVE_L1, - s->l1_table_offset, cur_l1_bytes); + s->l1_table_offset, cur_l1_bytes, + false); if (ret < 0) { goto fail; } |