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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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2
qemu-io.c
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@ -68,7 +68,7 @@ static int openfile(char *name, int flags, int growable, QDict *opts)
} else {
qemuio_bs = bdrv_new("hda");
if (bdrv_open(qemuio_bs, name, opts, flags, NULL, &local_err) < 0) {
if (bdrv_open(&qemuio_bs, name, opts, flags, NULL, &local_err) < 0) {
fprintf(stderr, "%s: can't open device %s: %s\n", progname, name,
error_get_pretty(local_err));
error_free(local_err);