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btrfs: zoned: fix zone finishing with missing devices
If do_zone_finish() is called with a filesystem that has missing devices (e.g. a RAID file system mounted in degraded mode) it is accessing the btrfs_device::zone_info pointer, which will not be set if the device in question is missing. Check if the device is present (by checking if it has a valid block device pointer associated) and if not, skip zone finishing for it. Fixes: 4dcbb8a ("btrfs: zoned: make zone finishing multi stripe capable") CC: stable@vger.kernel.org # 6.1+ Reviewed-by: Naohiro Aota <naohiro.aota@wdc.com> Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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