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block: Rename BdrvChildRole to BdrvChildClass

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This structure nearly only contains parent callbacks for child state
changes.  It cannot really reflect a child's role, because different
roles may overlap (as we will see when real roles are introduced), and
because parents can have custom callbacks even when the child fulfills a
standard role.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20200513110544.176672-4-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2020-05-13 13:05:13 +02:00 • committed by Kevin Wolf
parent d67066d8bc
commit bd86fb990c
17 changed files with 141 additions and 133 deletions
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6
block/vvfat.c
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@ -3136,7 +3136,7 @@ static void vvfat_qcow_options(int *child_flags, QDict *child_options,
qdict_set_default_str(child_options, BDRV_OPT_CACHE_NO_FLUSH, "on");
}
static const BdrvChildRole child_vvfat_qcow = {
static const BdrvChildClass child_vvfat_qcow = {
.parent_is_bds = true,
.inherit_options = vvfat_qcow_options,
};
@ -3210,14 +3210,14 @@ err:
}
static void vvfat_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildRole *role,
const BdrvChildClass *child_class,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
{
BDRVVVFATState *s = bs->opaque;
assert(c == s->qcow || role == &child_backing);
assert(c == s->qcow || child_class == &child_backing);
if (c == s->qcow) {
/* This is a private node, nobody should try to attach to it */