[PATCH] Always do locking when iterating over list of streams (bug 15142)

[Florian Weimer]

On 08/21/2017 04:22 PM, Andreas Schwab wrote:
> 	[BZ #15142]
> 	* libio/genops.c (_IO_list_all_stamp): Delete.  All uses removed.
> 	(_IO_flush_all_lockp): Always lock list_all_lock.
> 	(_IO_flush_all_linebuffered): Likewise.
> 	(_IO_unbuffer_all): Likewise.

This change seems reasonable, but I think we need to remove flushing on
abort first (completely, not the hybrid attempt I posted).

Thanks,
Florian