Commit cb3e3930 authored Jul 21, 2020 by Josef Bacik Committed by David Sterba Oct 07, 2020

btrfs: flush delayed refs when trying to reserve data space



We can end up with freed 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>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent 327feeeb

fs/btrfs/space-info.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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,
		};

Admin message