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From: Brian Foster <bfoster@redhat.com>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>,
	linux-xfs@vger.kernel.org, hch@infradead.org,
	david@fromorbit.com
Subject: Re: [PATCH 4/4] xfs: clean up icreate quota reservation calls
Date: Mon, 25 Jan 2021 10:17:22 -0500
Message-ID: <20210125151722.GF2047559@bfoster> (raw)
In-Reply-To: <161142791730.2170981.16295389347749875438.stgit@magnolia>

On Sat, Jan 23, 2021 at 10:51:57AM -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
> 
> Create a proper helper so that inode creation calls can reserve quota
> with a dedicated function.
> 
> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
>  fs/xfs/xfs_inode.c       |    8 ++++----
>  fs/xfs/xfs_quota.h       |   15 +++++++++++----
>  fs/xfs/xfs_symlink.c     |    4 ++--
>  fs/xfs/xfs_trans_dquot.c |   21 +++++++++++++++++++++
>  4 files changed, 38 insertions(+), 10 deletions(-)
> 
> 
...
> diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
> index 28b8ac701919..3315498a6fa1 100644
> --- a/fs/xfs/xfs_trans_dquot.c
> +++ b/fs/xfs/xfs_trans_dquot.c
> @@ -804,6 +804,27 @@ xfs_trans_reserve_quota_nblks(
>  						nblks, ninos, flags);
>  }
>  
> +/* Change the quota reservations for an inode creation activity. */
> +int
> +xfs_trans_reserve_quota_icreate(
> +	struct xfs_trans	*tp,
> +	struct xfs_inode	*dp,
> +	struct xfs_dquot	*udqp,
> +	struct xfs_dquot	*gdqp,
> +	struct xfs_dquot	*pdqp,
> +	int64_t			nblks)
> +{
> +	struct xfs_mount	*mp = dp->i_mount;
> +
> +	if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
> +		return 0;
> +
> +	ASSERT(!xfs_is_quota_inode(&mp->m_sb, dp->i_ino));
> +
> +	return xfs_trans_reserve_quota_bydquots(tp, dp->i_mount, udqp, gdqp,
> +			pdqp, nblks, 1, XFS_QMOPT_RES_REGBLKS);

Considering we can get mp from tp (and it looks like we always pass tp),
is it worth even passing in dp for an (unlikely) assert? That seems a
little odd anyways since nothing down in this path actually uses or
cares about the parent inode. Also, no need to pass dp->i_mount above if
we've already defined mp, at least.

Brian

> +}
> +
>  /*
>   * This routine is called to allocate a quotaoff log item.
>   */
> 


  reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-23 18:51 [PATCHSET v2 0/4] xfs: minor cleanups of the quota functions Darrick J. Wong
2021-01-23 18:51 ` [PATCH 1/4] xfs: clean up quota reservation callsites Darrick J. Wong
2021-01-25 15:13   ` Brian Foster
2021-01-23 18:51 ` [PATCH 2/4] xfs: clean up quota reservation wrappers Darrick J. Wong
2021-01-25 15:13   ` Brian Foster
2021-01-23 18:51 ` [PATCH 3/4] xfs: create convenience wrappers for incore quota block reservations Darrick J. Wong
2021-01-24  9:33   ` Christoph Hellwig
2021-01-25 15:15   ` Brian Foster
2021-01-26 20:37     ` Darrick J. Wong
2021-01-23 18:51 ` [PATCH 4/4] xfs: clean up icreate quota reservation calls Darrick J. Wong
2021-01-25 15:17   ` Brian Foster [this message]
2021-01-26 18:23     ` Darrick J. Wong
2021-01-26  4:51 ` [PATCH 5/4] xfs: fix up build warnings when quotas are disabled Darrick J. Wong
2021-01-27 16:58   ` Christoph Hellwig
  -- strict thread matches above, loose matches on Subject: below --
2021-01-18 22:11 [PATCHSET 0/4] xfs: minor cleanups of the quota functions Darrick J. Wong
2021-01-18 22:11 ` [PATCH 4/4] xfs: clean up icreate quota reservation calls Darrick J. Wong
2021-01-19  6:46   ` Christoph Hellwig

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