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block: convert bdrv_invalidate_cache callback to coroutine_fn

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QED's bdrv_invalidate_cache implementation would like to reuse functions
that acquire/release the metadata locks.  Call it from coroutine context
to simplify the logic.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1516279431-30424-6-git-send-email-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Paolo Bonzini 2018-03-01 17:36:18 +01:00 • committed by Kevin Wolf
parent 9fb4dfc570
commit 2b148f392b
7 changed files with 58 additions and 24 deletions
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3
include/block/block_int.h
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@ -224,7 +224,8 @@ struct BlockDriver {
/*
* Invalidate any cached meta-data.
*/
void (*bdrv_invalidate_cache)(BlockDriverState *bs, Error **errp);
void coroutine_fn (*bdrv_co_invalidate_cache)(BlockDriverState *bs,
Error **errp);
int (*bdrv_inactivate)(BlockDriverState *bs);
/*