[PATCH 22/24] btrfs: flush delayed refs when trying to reserve data space

Josef Bacik
2020-02-03T20:50:34Z

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.

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

diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c
index d9085322bacd..8d5d57d4aba3 100644
--- a/fs/btrfs/space-info.c
+++ b/fs/btrfs/space-info.c
@@ -805,6 +805,7 @@ 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,
};

--
2.24.1