After commit
996478ca9c460886ac1 ("btrfs: change how we decide to commit
transactions during flushing") there is no need to hold the delayed_rsv
during the percpu_counter_compare call since we get the byte's snapshot
earlier. So hold the lock only while reading delayed_rsv.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
bytes = 0;
else
bytes -= delayed_rsv->size;
+ spin_unlock(&delayed_rsv->lock);
+
if (percpu_counter_compare(&space_info->total_bytes_pinned,
bytes) < 0) {
- spin_unlock(&delayed_rsv->lock);
return -ENOSPC;
}
- spin_unlock(&delayed_rsv->lock);
commit:
trans = btrfs_join_transaction(fs_info->extent_root);