linux-ext4 - Re: [PATCH updated] ext4: Use an rb tree for tracking blocks freed during transaction.

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Date:	Fri, 10 Oct 2008 21:04:31 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	cmm@...ibm.com, tytso@....edu, sandeen@...hat.com
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH updated] ext4: Use an rb tree for tracking blocks freed
	during transaction.

On Fri, Oct 10, 2008 at 08:58:30PM +0530, Aneesh Kumar K.V wrote:
> With this patch we track the block freed during a transaction using
> rb tree. We also make sure contiguos blocks freed are collected
> in one rb node.


The change from the last version is to add proper locking
when adding the new extents to active_transaction list.

        /* Add the extent to active_transaction list */
+       spin_lock(&sbi->s_md_lock);
        list_add(&new_entry->list, &sbi->s_active_transaction);
+       spin_unlock(&sbi->s_md_lock);


-aneesh
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