btrfs: handle preemptive delalloc flushing slightly differently

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If we decide to flush delalloc from the preemptive flusher, we really do
not want to wait on ordered extents, as it gains us nothing.  However
there was logic to go ahead and wait on ordered extents if there was
more ordered bytes than delalloc bytes.  We do not want this behavior,
so pass through whether this flushing is for preemption, and do not wait
for ordered extents if that's the case.  Also break out of the shrink
loop after the first flushing, as we just want to one shot shrink
delalloc.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Josef Bacik 2021-04-28 13:38:48 -04:00 • committed by David Sterba

parent 3e10156997

commit 385f421f18

1 changed files with 12 additions and 3 deletions

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fs/btrfs/space-info.c

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