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btrfs: add a flush step for delayed iputs

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Delayed iputs could very well free up enough space without needing to
commit the transaction, so make this step it's own step.  This will
allow us to skip the step for evictions in a later patch.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik
2019-08-01 18:19:33 -04:00
committed by David Sterba
parent e11c0406ad
commit 844245b454
3 changed files with 6 additions and 3 deletions
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include/trace/events/btrfs.h
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@@ -1088,6 +1088,7 @@ TRACE_EVENT(btrfs_trigger_flush,
{ FLUSH_DELAYED_REFS, "FLUSH_ELAYED_REFS"}, \
{ ALLOC_CHUNK, "ALLOC_CHUNK"}, \
{ ALLOC_CHUNK_FORCE, "ALLOC_CHUNK_FORCE"}, \
{ RUN_DELAYED_IPUTS, "RUN_DELAYED_IPUTS"}, \
{ COMMIT_TRANS, "COMMIT_TRANS"})
TRACE_EVENT(btrfs_flush_space,