[21/23] btrfs: flush delayed refs when trying to reserve data space
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Message ID 20200707154246.52844-22-josef@toxicpanda.com
State New
Headers show
Series
  • Change data reservations to use the ticketing infra
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Commit Message

Josef Bacik July 7, 2020, 3:42 p.m. UTC
We can end up with free'd extents in the delayed refs, and thus
may_commit_transaction() may not think we have enough pinned space to
commit the transaction and we'll ENOSPC early.  Handle this by running
the delayed refs in order to make sure pinned is uptodate before we try
to commit the transaction.

Tested-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
---
 fs/btrfs/space-info.c | 1 +
 1 file changed, 1 insertion(+)

Patch
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diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c
index 5a555f20ca20..db0eebe6758b 100644
--- a/fs/btrfs/space-info.c
+++ b/fs/btrfs/space-info.c
@@ -1023,6 +1023,7 @@  static const enum btrfs_flush_state evict_flush_states[] = {
 static const enum btrfs_flush_state data_flush_states[] = {
 	FLUSH_DELALLOC_WAIT,
 	RUN_DELAYED_IPUTS,
+	FLUSH_DELAYED_REFS,
 	COMMIT_TRANS,
 };