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blkdebug: Add "none" event

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Together with @iotypes and @sector, this can be used to trap e.g. the
first read or write access to a certain sector without having to know
what happens internally in the block layer, i.e. which "real" events
happen right before such an access.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190507203508.18026-5-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz
2019-05-07 22:35:05 +02:00
parent 16789db3de
commit f8cec157cb
2 changed files with 5 additions and 1 deletions
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2
block/blkdebug.c
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@@ -491,6 +491,8 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
goto out;
}
bdrv_debug_event(bs, BLKDBG_NONE);
ret = 0;
out:
if (ret < 0) {