Btrfs: allow shrink_delalloc flush the needed reclaimed pages
Currently we only allow a maximum of 2 megabytes of pages to be flushed at a
time. This was ok before, but now we have overcommit which will screw us in a
heartbeat if we are quickly filling the disk. So instead pick either 2
megabytes or the number of pages we need to reclaim to be safe again, which ever
is larger. Thanks,
Signed-off-by:
Josef Bacik <josef@redhat.com>
parent
f104d044
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