On Sun, Jan 31, 2021 at 06:06:17PM -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@xxxxxxxxxx>
>
> If a file user, group, or project change is unable to reserve enough
> quota to handle the modification, try clearing whatever space the
> filesystem might have been hanging onto in the hopes of speeding up the
> filesystem. The flushing behavior will become particularly important
> when we add deferred inode inactivation because that will increase the
> amount of space that isn't actively tied to user data.
>
> Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> ---
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
> fs/xfs/xfs_trans.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
>
> diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
> index ee3cb916c5c9..3203841ab19b 100644
> --- a/fs/xfs/xfs_trans.c
> +++ b/fs/xfs/xfs_trans.c
> @@ -1149,8 +1149,10 @@ xfs_trans_alloc_ichange(
> struct xfs_dquot *new_udqp;
> struct xfs_dquot *new_gdqp;
> struct xfs_dquot *new_pdqp;
> + bool retried = false;
> int error;
>
> +retry:
> error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ichange, 0, 0, 0, &tp);
> if (error)
> return error;
> @@ -1175,6 +1177,13 @@ xfs_trans_alloc_ichange(
> if (new_udqp || new_gdqp || new_pdqp) {
> error = xfs_trans_reserve_quota_chown(tp, ip, new_udqp,
> new_gdqp, new_pdqp, force);
> + if (!retried && (error == -EDQUOT || error == -ENOSPC)) {
> + xfs_trans_cancel(tp);
> + xfs_blockgc_free_dquots(new_udqp, new_gdqp, new_pdqp,
> + 0);
> + retried = true;
> + goto retry;
> + }
> if (error)
> goto out_cancel;
> }
>
