From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 2/5] xfs: use a cursor for bulk AIL insertion
Date: Mon, 4 Jul 2011 04:32:06 -0400 [thread overview]
Message-ID: <20110704083206.GA28858@infradead.org> (raw)
In-Reply-To: <1309757260-5484-3-git-send-email-david@fromorbit.com>
> /*
> + * Initialise the cursor to the last item in the AIL with the given @lsn.
> + * This searches the list from highest LSN to lowest.
> */
> +static struct xfs_log_item *
> +__xfs_trans_ail_cursor_last(
> + struct xfs_ail *ailp,
> + struct xfs_ail_cursor *cur,
> + xfs_lsn_t lsn,
> + bool do_init)
> {
> + xfs_log_item_t *lip = NULL;
>
> + if (do_init)
> + xfs_trans_ail_cursor_init(ailp, cur);
> +
> + if (list_empty(&ailp->xa_ail))
> + goto out;
>
> + list_for_each_entry_reverse(lip, &ailp->xa_ail, li_ail) {
> + if (XFS_LSN_CMP(lip->li_lsn, lsn) <= 0)
> break;
> }
> +out:
> + if (cur)
> + cur->item = lip;
> + return lip;
> +}
Please just move the xfs_trans_ail_cursor_init call to
xfs_trans_ail_cursor_init instead of adding the do_init parameter.
Also the list_empty check is not needed due to the list_for_each*
macros handling that case just fine.
I haven't looked at the details of the new xfs_ail_splice code yet, so
more updates later.
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next prev parent reply other threads:[~2011-07-04 8:32 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-04 5:27 [PATCH 0/5] xfs: fix AIL bulk insert issues and cleanups Dave Chinner
2011-07-04 5:27 ` [PATCH 1/5] xfs: unpin stale inodes directly in IOP_COMMITTED Dave Chinner
2011-07-04 8:13 ` Christoph Hellwig
2011-07-06 20:45 ` Alex Elder
2011-07-04 5:27 ` [PATCH 2/5] xfs: use a cursor for bulk AIL insertion Dave Chinner
2011-07-04 8:32 ` Christoph Hellwig [this message]
2011-07-04 11:16 ` Christoph Hellwig
2011-07-04 21:20 ` Christoph Hellwig
2011-07-07 21:26 ` Alex Elder
2011-07-08 1:04 ` Dave Chinner
2011-07-07 20:29 ` Alex Elder
2011-07-04 5:27 ` [PATCH 3/5] xfs: remove confusing ail cursor wrapper Dave Chinner
2011-07-04 8:16 ` Christoph Hellwig
2011-07-07 20:33 ` Alex Elder
2011-07-04 5:27 ` [PATCH 4/5] xfs: convert AIL cursors to use struct list_head Dave Chinner
2011-07-04 8:43 ` Christoph Hellwig
2011-07-07 21:15 ` Alex Elder
2011-07-08 1:54 ` Dave Chinner
2011-07-04 5:27 ` [PATCH 5/5] xfs: add size update tracepoint to IO completion Dave Chinner
2011-07-04 8:16 ` Christoph Hellwig
2011-07-07 21:18 ` Alex Elder
2011-07-04 8:13 ` [PATCH 0/5] xfs: fix AIL bulk insert issues and cleanups Christoph Hellwig
2011-07-04 11:26 ` Dave Chinner
[not found] <20111014185048.893798829@bombadil.infradead.org>
2011-10-14 18:50 ` [PATCH 2/5] xfs: use a cursor for bulk AIL insertion Christoph Hellwig
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