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Btrfs: only check delayed ref usage in should_end_transaction

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We were only doing btrfs_check_space_for_delayed_refs() if the metadata
space was full, ie we couldn't allocate chunks.  This assumes we'll be
able to allocate chunks during transaction commit, but since nothing
does a LIMIT flush during the transaction commit this won't actually
happen unless we happen to run shy of actual space.  We already take
into account a full fs in btrfs_check_space_for_delayed_refs() so just
kill this extra check to make sure we're ending the transaction when we
need to.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2017-09-29 15:43:51 -04:00 committed by David Sterba
parent fd708b81d9
commit 7c777430e8
1 changed files with 1 additions and 2 deletions
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3
fs/btrfs/transaction.c
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@ -797,8 +797,7 @@ static int should_end_transaction(struct btrfs_trans_handle *trans)
{
struct btrfs_fs_info *fs_info = trans->fs_info;
if (fs_info->global_block_rsv.space_info->full &&
btrfs_check_space_for_delayed_refs(trans, fs_info))
if (btrfs_check_space_for_delayed_refs(trans, fs_info))
return 1;
return !!btrfs_block_rsv_check(&fs_info->global_block_rsv, 5);