tree 24a0b208fe8d74414fca325b8f291588b748a1e1
parent 621a1ee1d399c77dd4604aeab3e0f6319f649dbc
author Nikolay Borisov <nborisov@suse.com> 1637831683 +0200
committer David Sterba <dsterba@suse.com> 1641561503 +0100

btrfs: allow device add if balance is paused

Currently paused balance precludes adding a device since they are both
considered exclusive ops and we can have at most one running at a time.
This is problematic in case a filesystem encounters an ENOSPC situation
while balance is running, in this case the only thing the user can do
is mount the fs with "skip_balance" which pauses balance and delete some
data to free up space for balance. However, it should be possible to add
a new device when balance is paused.

Fix this by allowing device add to proceed when balance is paused.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>