On Wed, Jul 04, 2018 at 04:09:50PM +0800, Anand Jain wrote:
> On 06/21/2018 01:51 AM, David Sterba wrote:
> > Commit 542c5908abfe84f7b4c1 ("btrfs: replace uuid_mutex by
> > device_list_mutex in btrfs_open_devices") switched to device_list_mutex
> > as we need that for the device list traversal, but we also need
> > uuid_mutex to protect access to fs_devices::opened to be consistent with
> > other users of that item.
> >
> > CC: Anand Jain <anand.jain@xxxxxxxxxx>
> > Signed-off-by: David Sterba <dsterba@xxxxxxxx>
>
> I am optimize the uuid_mutex for fsids concurrency on top these set of
> patches, so.
>
> Reviewed-by: Anand Jain <anand.jain@xxxxxxxxxx>
So this should go to 4.18, instead of reverting 542c5908abfe8.
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