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block: Change BDS parameter of bdrv_open() to **

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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>
This commit is contained in:
Max Reitz 2014-02-18 18:33:05 +01:00 • committed by Kevin Wolf
parent e6dc8a1f83
commit f67503e5bd
12 changed files with 73 additions and 57 deletions
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6
block/vvfat.c
View file

@ -2936,15 +2936,13 @@ static int enable_write_target(BDRVVVFATState *s)
goto err;
}
s->qcow = bdrv_new("");
ret = bdrv_open(s->qcow, s->qcow_filename, NULL,
s->qcow = NULL;
ret = bdrv_open(&s->qcow, s->qcow_filename, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH, bdrv_qcow,
&local_err);
if (ret < 0) {
qerror_report_err(local_err);
error_free(local_err);
bdrv_unref(s->qcow);
goto err;
}