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mirror_qemu
mirror of https://github.com/proxmox/mirror_qemu
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mirror: block all operations on the target image during the job 

There's nothing preventing the target image from being used by other
operations during the 'drive-mirror' job, so we should block them all
until the job is done.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 82b88fd04cde918a08a6f9a4ab85626d7fd7b502.1446475331.git.berto@igalia.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
master
Alberto Garcia 2015-11-02 16:51:53 +02:00 committed by Max Reitz
parent e6c17669eb
commit 10f3cd15dd
1 changed files with 4 additions and 0 deletions
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4
block/mirror.c
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@ -384,6 +384,7 @@ static void mirror_exit(BlockJob *job, void *opaque)
aio_context_release(replace_aio_context);
}
g_free(s->replaces);
bdrv_op_unblock_all(s->target, s->common.blocker);
bdrv_unref(s->target);
block_job_completed(&s->common, data->ret);
g_free(data);
@ -744,6 +745,9 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target,
block_job_release(bs);
return;
}
bdrv_op_block_all(s->target, s->common.blocker);
bdrv_set_enable_write_cache(s->target, true);
if (s->target->blk) {
blk_set_on_error(s->target->blk, on_target_error, on_target_error);