btrfs: extend locked section when adding a new device in device_list_add

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Make sure the device_list_lock is held the whole time:

* when the device is being looked up
* new device is initialized and put to the list
* the list counters are updated (fs_devices::opened, fs_devices::total_devices)

Signed-off-by: Anand Jain <anand.jain@oracle.com>
[ update changelog ]
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Anand Jain 2018-05-29 14:10:20 +08:00 • committed by David Sterba

parent 4306a97449

commit 9c6d173ea6

1 changed files with 12 additions and 4 deletions

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fs/btrfs/volumes.c

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