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block: Drop @child_class from bdrv_child_perm()

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Implementations should decide the necessary permissions based on @role.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200513110544.176672-35-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2020-05-13 13:05:44 +02:00 • committed by Kevin Wolf
parent 1f38f04eac
commit e5d8a40685
13 changed files with 22 additions and 59 deletions
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4
block/vvfat.c
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@ -3213,7 +3213,6 @@ err:
}
static void vvfat_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
@ -3221,8 +3220,7 @@ static void vvfat_child_perm(BlockDriverState *bs, BdrvChild *c,
{
BDRVVVFATState *s = bs->opaque;
assert(c == s->qcow ||
(child_class == &child_of_bds && (role & BDRV_CHILD_COW)));
assert(c == s->qcow || (role & BDRV_CHILD_COW));
if (c == s->qcow) {
/* This is a private node, nobody should try to attach to it */