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block: implement .change_aio_ctx in child_of_bds 

bdrv_child_cb_change_aio_ctx() is identical to
bdrv_child_cb_can_set_aio_ctx(), as we only need
to recursively go on the parent bs.

Note: bdrv_child_try_change_aio_context() is not called by
anyone at this point.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20221025084952.2139888-6-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
master
Emanuele Giuseppe Esposito 2022-10-25 04:49:47 -04:00 committed by Kevin Wolf
parent 3428b100dc
commit 27633e740e
1 changed files with 9 additions and 0 deletions
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9
block.c
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@ -1242,6 +1242,14 @@ static int bdrv_child_cb_inactivate(BdrvChild *child)
return 0;
}
static bool bdrv_child_cb_change_aio_ctx(BdrvChild *child, AioContext *ctx,
GHashTable *visited, Transaction *tran,
Error **errp)
{
BlockDriverState *bs = child->opaque;
return bdrv_change_aio_context(bs, ctx, visited, tran, errp);
}
static bool bdrv_child_cb_can_set_aio_ctx(BdrvChild *child, AioContext *ctx,
GSList **ignore, Error **errp)
{
@ -1534,6 +1542,7 @@ const BdrvChildClass child_of_bds = {
.inactivate = bdrv_child_cb_inactivate,
.can_set_aio_ctx = bdrv_child_cb_can_set_aio_ctx,
.set_aio_ctx = bdrv_child_cb_set_aio_ctx,
.change_aio_ctx = bdrv_child_cb_change_aio_ctx,
.update_filename = bdrv_child_cb_update_filename,
.get_parent_aio_context = child_of_bds_get_parent_aio_context,
};