Re: [PATCH, RFC] ext4: Replace hackishext4_mb_poll_new_transaction with commit callback
From: Aneesh Kumar K.V
Date: Fri Oct 17 2008 - 02:04:42 EST
On Thu, Oct 16, 2008 at 08:02:43PM -0400, Theodore Ts'o wrote:
> The multiblock allocator needs to be able to release blocks (and issue
> a blkdev discard request) when the transaction which freed those
> blocks is committed. Previously this was done via a polling mechanism
> when blocks are allocated or freed. A much better way of doing things
> is to create a jbd2 callback function and attaching the list of blocks
> to be freed directly to the transaction structure.
Why not use journal commit callback patch from andreas
The patch you sent will allows only one call back to be registered.
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