Re: [PATCH v3] btrfs: Ignore errors from btrfs_qgroup_trace_extent_post

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On Mon, Jan 29, 2018 at 10:06:52PM +0800, Qu Wenruo wrote:
> 
> 
> On 2018年01月29日 21:53, Nikolay Borisov wrote:
> > Running generic/019 with qgroups on the scratch device enabled is
> > almost guaranteed to trigger the BUG_ON in btrfs_free_tree_block. It's
> > supposed to trigger only on -ENOMEM, in reality, however, it's possible
> > to get -EIO from btrfs_qgroup_trace_extent_post. This function just
> > finds the roots of the extent being tracked and sets the qrecord->old_roots
> > list. If this operation fails nothing critical happens except the
> > quota accounting can be considered wrong. In such case just set the
> > INCONSISTENT flag for the quota and print a warning, rather than
> > killing off the system. Additionally, it's possible to trigger a BUG_ON
> > in btrfs_truncate_inode_items as well.
> > 
> > Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
> 
> Reviewed-by: Qu Wenruo <wqu@xxxxxxxx>

Added to next, thanks.
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