From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 8/8] xfs: use AIL bulk delete function to implement single delete
Date: Mon, 6 Dec 2010 09:37:32 -0500 [thread overview]
Message-ID: <20101206143732.GC31100@infradead.org> (raw)
In-Reply-To: <1290993152-20999-9-git-send-email-david@fromorbit.com>
> -/*
> * Bulk update version of xfs_trans_ail_delete
> *
> * This version takes an array of log items that all need to removed from the
> * AIL. The caller is already holding the AIL lock, and done all the checks
Not overly useful now that the non-bulk version is gone.
> * necessary to ensure the items passed in via @lgia are ready for deletion.
> + * If an item we delete in the AIL is the minimum one, update the tail lsn in
> + * the log manager.
> *
> * This function will not drop the AIL lock until all items are removed from
> * the AIL to minimise the amount of lock traffic on the AIL. This does not
> * greatly increase the AIL hold time, but does significantly reduce the amount
> * of traffic on the lock, especially during IO completion.
> + *
> + * This function must be called with the AIL lock held. The lock is dropped
> + * before returning.
These should be in the patch introducing xfs_trans_ail_delete_bulk.
Otherwise looks good.
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prev parent reply other threads:[~2010-12-06 14:35 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-29 1:12 [PATCH 0/8] xfs: AIL lock contention reduction V2 Dave Chinner
2010-11-29 1:12 ` [PATCH 1/8] xfs: Pull EFI/EFD handling out from under the AIL lock Dave Chinner
2010-11-30 20:17 ` Christoph Hellwig
2010-12-02 1:28 ` Dave Chinner
2010-12-02 11:38 ` Christoph Hellwig
2010-12-03 5:24 ` Dave Chinner
2010-11-29 1:12 ` [PATCH 2/8] xfs: clean up xfs_ail_delete() Dave Chinner
2010-11-30 20:19 ` Christoph Hellwig
2010-11-29 1:12 ` [PATCH 3/8] xfs: bulk AIL insertion during transaction commit Dave Chinner
2010-11-30 22:40 ` Christoph Hellwig
2010-12-02 1:32 ` Dave Chinner
2010-11-29 1:12 ` [PATCH 4/8] xfs: reduce the number of AIL push wakeups Dave Chinner
2010-11-30 20:19 ` Christoph Hellwig
2010-11-29 1:12 ` [PATCH 5/8] xfs: consume iodone callback items on buffers as they are processed Dave Chinner
2010-11-30 20:24 ` Christoph Hellwig
2010-11-29 1:12 ` [PATCH 6/8] xfs: remove all the inodes on a buffer from the AIL in bulk Dave Chinner
2010-12-06 14:33 ` Christoph Hellwig
2010-12-07 3:44 ` Dave Chinner
2010-12-07 7:39 ` Christoph Hellwig
2010-11-29 1:12 ` [PATCH 8/8] xfs: use AIL bulk delete function to implement single delete Dave Chinner
2010-12-06 14:37 ` Christoph Hellwig [this message]
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