diff options
| author | Max Reitz <mreitz@redhat.com> | 2014-02-18 18:33:05 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-02-21 21:02:21 +0100 |
| commit | f67503e5bd8997ea7ec3f4bfa0af0e06321771a6 (patch) | |
| tree | 1b564ea3c13e76166a7e866995eb9c7f4055ae5c /blockdev.c | |
| parent | e6dc8a1f83835054fcaf1dcb41af7c868688c068 (diff) | |
block: Change BDS parameter of bdrv_open() to **
Make bdrv_open() take a pointer to a BDS pointer, similarly to
bdrv_file_open(). If a pointer to a NULL pointer is given, bdrv_open()
will create a new BDS with an empty name; if the BDS pointer is not
NULL, that existing BDS will be reused (in the same way as bdrv_open()
already did).
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'blockdev.c')
| -rw-r--r-- | blockdev.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/blockdev.c b/blockdev.c index 3cc8cda2bd..056ec4c8c1 100644 --- a/blockdev.c +++ b/blockdev.c @@ -504,7 +504,7 @@ static DriveInfo *blockdev_init(const char *file, QDict *bs_opts, bdrv_flags |= ro ? 0 : BDRV_O_RDWR; QINCREF(bs_opts); - ret = bdrv_open(dinfo->bdrv, file, bs_opts, bdrv_flags, drv, &error); + ret = bdrv_open(&dinfo->bdrv, file, bs_opts, bdrv_flags, drv, &error); if (ret < 0) { error_setg(errp, "could not open disk image %s: %s", @@ -1330,12 +1330,12 @@ static void external_snapshot_prepare(BlkTransactionState *common, qstring_from_str(snapshot_node_name)); } - /* We will manually add the backing_hd field to the bs later */ - state->new_bs = bdrv_new(""); /* TODO Inherit bs->options or only take explicit options with an * extended QMP command? */ - ret = bdrv_open(state->new_bs, new_image_file, options, + assert(state->new_bs == NULL); + ret = bdrv_open(&state->new_bs, new_image_file, options, flags | BDRV_O_NO_BACKING, drv, &local_err); + /* We will manually add the backing_hd field to the bs later */ if (ret != 0) { error_propagate(errp, local_err); } @@ -1582,7 +1582,7 @@ static void qmp_bdrv_open_encrypted(BlockDriverState *bs, const char *filename, Error *local_err = NULL; int ret; - ret = bdrv_open(bs, filename, NULL, bdrv_flags, drv, &local_err); + ret = bdrv_open(&bs, filename, NULL, bdrv_flags, drv, &local_err); if (ret < 0) { error_propagate(errp, local_err); return; @@ -2018,10 +2018,9 @@ void qmp_drive_backup(const char *device, const char *target, return; } - target_bs = bdrv_new(""); - ret = bdrv_open(target_bs, target, NULL, flags, drv, &local_err); + target_bs = NULL; + ret = bdrv_open(&target_bs, target, NULL, flags, drv, &local_err); if (ret < 0) { - bdrv_unref(target_bs); error_propagate(errp, local_err); return; } @@ -2162,11 +2161,10 @@ void qmp_drive_mirror(const char *device, const char *target, /* Mirroring takes care of copy-on-write using the source's backing * file. */ - target_bs = bdrv_new(""); - ret = bdrv_open(target_bs, target, NULL, flags | BDRV_O_NO_BACKING, drv, + target_bs = NULL; + ret = bdrv_open(&target_bs, target, NULL, flags | BDRV_O_NO_BACKING, drv, &local_err); if (ret < 0) { - bdrv_unref(target_bs); error_propagate(errp, local_err); return; } |