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From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 5/7] xfs: factor iclog state processing out of xlog_state_do_callback()
Date: Tue, 3 Sep 2019 23:42:21 -0700	[thread overview]
Message-ID: <20190904064221.GA3960@infradead.org> (raw)
In-Reply-To: <20190904042451.9314-6-david@fromorbit.com>

On Wed, Sep 04, 2019 at 02:24:49PM +1000, Dave Chinner wrote:
> +	/* Skip all iclogs in the ACTIVE & DIRTY states */
> +	if (iclog->ic_state & (XLOG_STATE_ACTIVE|XLOG_STATE_DIRTY))
> +		return false;

Please use spaces around the "|".

> +			if (iclog->ic_state & XLOG_STATE_IOERROR)
> +				ioerrors++;

This now also counts the ierrror flag for dirty and active iclogs.
Not sure it matters given our state machine, but it does change
behavior.

> +			ret = xlog_state_iodone_process_iclog(log, iclog,
> +								ciclog);
> +			if (ret)
> +				break;

No need for the ret variable.

>  
> -			} else
> -				ioerrors++;
> +			if (!(iclog->ic_state &
> +			      (XLOG_STATE_CALLBACK | XLOG_STATE_IOERROR))) {
> +				iclog = iclog->ic_next;
> +				continue;
> +			}

Btw, one cleanup I had pending is that all our loops ovr the iclog
list can be cleaned up nicely so that continue does that right thing
without all these manual "iclog = iclog->ic_next" next statements.  Just
turn the loop into:

	do {
		..
	} while ((iclog = iclog->ic_next) != first_iclog);

this might be applicable to a few of your patches.

  reply	other threads:[~2019-09-04  6:42 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-04  4:24 [PATCH 0/7] xfs: log race fixes and cleanups Dave Chinner
2019-09-04  4:24 ` [PATCH 1/7] xfs: push the AIL in xlog_grant_head_wake Dave Chinner
2019-09-04  6:07   ` Christoph Hellwig
2019-09-04 21:46     ` Dave Chinner
2019-09-04  4:24 ` [PATCH 2/7] xfs: fix missed wakeup on l_flush_wait Dave Chinner
2019-09-04  6:07   ` Christoph Hellwig
2019-09-04 21:47     ` Dave Chinner
2019-09-04  4:24 ` [PATCH 3/7] xfs: factor debug code out of xlog_state_do_callback() Dave Chinner
2019-09-04  6:10   ` Christoph Hellwig
2019-09-04 21:14     ` Dave Chinner
2019-09-04  4:24 ` [PATCH 4/7] xfs: factor callbacks " Dave Chinner
2019-09-04  6:13   ` Christoph Hellwig
2019-09-04  6:32   ` Christoph Hellwig
2019-09-04 21:22     ` Dave Chinner
2019-09-04  4:24 ` [PATCH 5/7] xfs: factor iclog state processing " Dave Chinner
2019-09-04  6:42   ` Christoph Hellwig [this message]
2019-09-04 21:43     ` Dave Chinner
2019-09-04  4:24 ` [PATCH 6/7] xfs: push iclog state cleaning into xlog_state_clean_log Dave Chinner
2019-09-04  6:44   ` Christoph Hellwig
2019-09-04  4:24 ` [PATCH 7/7] xfs: push the grant head when the log head moves forward Dave Chinner
2019-09-04  6:45   ` Christoph Hellwig
2019-09-04 21:49     ` Dave Chinner
2019-09-04 19:34   ` Brian Foster
2019-09-04 22:50     ` Dave Chinner
2019-09-05 16:25       ` Brian Foster
2019-09-06  0:02         ` Dave Chinner
2019-09-06 13:10           ` Brian Foster
2019-09-07 15:10             ` Brian Foster
2019-09-08 23:26               ` Dave Chinner
2019-09-10  9:56                 ` Brian Foster
2019-09-10 23:38                   ` Dave Chinner
2019-09-12 13:46                     ` Brian Foster
2019-09-17  4:31                       ` Darrick J. Wong
2019-09-17 12:48                         ` Brian Foster
2019-09-24 17:16                           ` Darrick J. Wong
2019-09-26 13:19                             ` Brian Foster
2019-09-04  5:26 ` [PATCH 0/7] xfs: log race fixes and cleanups Christoph Hellwig
2019-09-04  5:56   ` Christoph Hellwig
2019-09-04 22:57     ` Dave Chinner
     [not found]       ` <20190905065133.GA21840@infradead.org>
2019-09-05  7:10         ` Dave Chinner
2019-09-05  7:28           ` Dave Chinner

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