From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 6/8] xfs: remove need_start_rec parameter from xlog_write()
Date: Thu, 25 Feb 2021 09:49:20 +0100 [thread overview]
Message-ID: <YDdkkPyKSnPfll3n@infradead.org> (raw)
In-Reply-To: <20210223033442.3267258-7-david@fromorbit.com>
> + if (optype & XLOG_START_TRANS)
> + headers++;
This deserves a comment.
> + len = xlog_write_calc_vec_length(ticket, log_vector, optype);
> + if (start_lsn)
> + *start_lsn = 0;
I'd slightly prefer that allowing a NULL start_lsn was a separate prep
patch. As-is it really clutters the patch and detracts from the real
change.
> int copy_len;
> int copy_off;
> bool ordered = false;
> + bool wrote_start_rec = false;
>
> /* ordered log vectors have no regions to write */
> if (lv->lv_buf_len == XFS_LOG_VEC_ORDERED) {
> @@ -2502,13 +2501,15 @@ xlog_write(
> * write a start record. Only do this for the first
> * iclog we write to.
> */
> - if (need_start_rec) {
> + if (optype & XLOG_START_TRANS) {
So this relies on the fact that the only callers that passes an optype of
XLOG_START_TRANS only writes a single lv. I think we want an assert for
that somewhere to avoid a bad surprise later.
next prev parent reply other threads:[~2021-02-25 8:52 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-23 3:34 [PATCH v2] xfs: various log stuff Dave Chinner
2021-02-23 3:34 ` [PATCH 1/8] xfs: log stripe roundoff is a property of the log Dave Chinner
2021-02-23 10:29 ` Chandan Babu R
2021-02-24 20:14 ` Darrick J. Wong
2021-02-25 8:32 ` Christoph Hellwig
2021-03-01 15:13 ` Brian Foster
2021-02-23 3:34 ` [PATCH 2/8] xfs: separate CIL commit record IO Dave Chinner
2021-02-23 12:12 ` Chandan Babu R
2021-02-24 20:34 ` Darrick J. Wong
2021-02-24 21:44 ` Dave Chinner
2021-02-24 23:06 ` Darrick J. Wong
2021-02-25 8:34 ` Christoph Hellwig
2021-02-25 20:47 ` Dave Chinner
2021-03-01 9:09 ` Christoph Hellwig
2021-03-03 0:11 ` Dave Chinner
2021-02-26 2:48 ` Darrick J. Wong
2021-02-28 16:36 ` Brian Foster
2021-02-28 23:46 ` Dave Chinner
2021-03-01 15:33 ` Brian Foster
2021-03-01 15:19 ` Brian Foster
2021-03-03 0:41 ` Dave Chinner
2021-03-03 15:22 ` Brian Foster
2021-03-04 22:57 ` Dave Chinner
2021-03-05 0:44 ` Dave Chinner
2021-02-23 3:34 ` [PATCH 3/8] xfs: move and rename xfs_blkdev_issue_flush Dave Chinner
2021-02-23 12:57 ` Chandan Babu R
2021-02-24 20:45 ` Darrick J. Wong
2021-02-24 22:01 ` Dave Chinner
2021-02-25 8:36 ` Christoph Hellwig
2021-02-23 3:34 ` [PATCH 4/8] xfs: async blkdev cache flush Dave Chinner
2021-02-23 5:29 ` Chaitanya Kulkarni
2021-02-23 14:02 ` Chandan Babu R
2021-02-24 20:51 ` Darrick J. Wong
2021-02-23 3:34 ` [PATCH 5/8] xfs: CIL checkpoint flushes caches unconditionally Dave Chinner
2021-02-24 7:16 ` Chandan Babu R
2021-02-24 20:57 ` Darrick J. Wong
2021-02-25 8:42 ` Christoph Hellwig
2021-02-25 21:07 ` Dave Chinner
2021-02-23 3:34 ` [PATCH 6/8] xfs: remove need_start_rec parameter from xlog_write() Dave Chinner
2021-02-24 7:17 ` Chandan Babu R
2021-02-24 20:59 ` Darrick J. Wong
2021-02-25 8:49 ` Christoph Hellwig [this message]
2021-02-25 20:55 ` Dave Chinner
2021-02-23 3:34 ` [PATCH 7/8] xfs: journal IO cache flush reductions Dave Chinner
2021-02-23 8:05 ` [PATCH 7/8 v2] " Dave Chinner
2021-02-24 12:27 ` Chandan Babu R
2021-02-24 20:32 ` Dave Chinner
2021-02-24 21:13 ` Darrick J. Wong
2021-02-24 22:03 ` Dave Chinner
2021-02-25 4:09 ` Chandan Babu R
2021-02-25 7:13 ` Chandan Babu R
2021-03-01 5:44 ` Dave Chinner
2021-03-01 5:56 ` Dave Chinner
2021-02-25 8:58 ` Christoph Hellwig
2021-02-25 21:06 ` Dave Chinner
2021-03-01 19:29 ` Brian Foster
2021-02-23 3:34 ` [PATCH 8/8] xfs: Fix CIL throttle hang when CIL space used going backwards Dave Chinner
2021-02-24 21:18 ` Darrick J. Wong
2021-02-24 22:05 ` Dave Chinner
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