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block: Add error handling to bdrv_invalidate_cache()

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If it returns an error, the migrated VM will not be started, but qemu
exits with an error message.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
This commit is contained in:
Kevin Wolf 2014-03-12 15:59:16 +01:00
parent 059b3527f0
commit 5a8a30db47
7 changed files with 76 additions and 18 deletions
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4
include/block/block.h
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@ -329,8 +329,8 @@ BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs,
BlockDriverCompletionFunc *cb, void *opaque);
/* Invalidate any cached metadata used by image formats */
void bdrv_invalidate_cache(BlockDriverState *bs);
void bdrv_invalidate_cache_all(void);
void bdrv_invalidate_cache(BlockDriverState *bs, Error **errp);
void bdrv_invalidate_cache_all(Error **errp);
void bdrv_clear_incoming_migration_all(void);

2
include/block/block_int.h
View file

@ -153,7 +153,7 @@ struct BlockDriver {
/*
* Invalidate any cached meta-data.
*/
void (*bdrv_invalidate_cache)(BlockDriverState *bs);
void (*bdrv_invalidate_cache)(BlockDriverState *bs, Error **errp);
/*
* Flushes all data that was already written to the OS all the way down to