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block: Add bdrv_next_monitor_owned()

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Add a function for iterating over all monitor-owned BlockDriverStates so
the generic block layer can do so.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2016-03-16 19:54:41 +01:00 • committed by Kevin Wolf
parent fe1a9cbc33
commit 262b4e8f74
4 changed files with 17 additions and 0 deletions
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7
blockdev.c
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@ -723,6 +723,13 @@ void blockdev_close_all_bdrv_states(void)
}
}
/* Iterates over the list of monitor-owned BlockDriverStates */
BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs)
{
return bs ? QTAILQ_NEXT(bs, monitor_list)
: QTAILQ_FIRST(&monitor_bdrv_states);
}
static void qemu_opt_rename(QemuOpts *opts, const char *from, const char *to,
Error **errp)
{