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btrfs: don't clear ret in btrfs_start_dirty_block_groups
If we fail to update a block group item in the loop we'll break, however we'll do btrfs_run_delayed_refs and lose our error value in ret, and thus not clean up properly. Fix this by only running the delayed refs if there was no failure. CC: stable@vger.kernel.org # 4.4+ Reviewed-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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@ -2669,7 +2669,8 @@ again:
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* Go through delayed refs for all the stuff we've just kicked off
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* and then loop back (just once)
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*/
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ret = btrfs_run_delayed_refs(trans, 0);
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if (!ret)
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ret = btrfs_run_delayed_refs(trans, 0);
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if (!ret && loops == 0) {
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loops++;
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spin_lock(&cur_trans->dirty_bgs_lock);
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