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block: Propagate AioContext change to parents

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All block nodes and users in any connected component of the block graph
must be in the same AioContext, so changing the AioContext of one node
must not only change all of its children, but all of its parents (and
in turn their children etc.) as well.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2019-05-06 19:17:59 +02:00
parent 0d83708a1d
commit 53a7d04185
3 changed files with 45 additions and 6 deletions
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1
include/block/block_int.h
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@ -694,6 +694,7 @@ struct BdrvChildRole {
bool (*can_set_aio_ctx)(BdrvChild *child, AioContext *ctx,
GSList **ignore, Error **errp);
void (*set_aio_ctx)(BdrvChild *child, AioContext *ctx, GSList **ignore);
};
extern const BdrvChildRole child_file;