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block: use the new _change_ API instead of _can_set_ and _set_

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Replace all direct usage of ->can_set_aio_ctx and ->set_aio_ctx,
and call bdrv_child_try_change_aio_context() in
bdrv_try_set_aio_context(), the main function called through
the whole block layer.

From this point onwards, ->can_set_aio_ctx and ->set_aio_ctx
won't be used anymore.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20221025084952.2139888-8-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Emanuele Giuseppe Esposito 2022-10-25 04:49:49 -04:00 • committed by Kevin Wolf
parent 3394939621
commit f8be48adf0
2 changed files with 31 additions and 21 deletions
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8
block/block-backend.c
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@ -2153,8 +2153,12 @@ static int blk_do_set_aio_context(BlockBackend *blk, AioContext *new_context,
bdrv_ref(bs);
if (update_root_node) {
ret = bdrv_child_try_set_aio_context(bs, new_context, blk->root,
errp);
/*
* update_root_node MUST be false for blk_root_set_aio_ctx_commit(),
* as we are already in the commit function of a transaction.
*/
ret = bdrv_child_try_change_aio_context(bs, new_context, blk->root,
errp);
if (ret < 0) {
bdrv_unref(bs);
return ret;