Re: [PATCH 1/2] dm-bufio: improve the performance of __dm_bufio_prefetch

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This commit message is extremtly sparse.  Not helped by the fact that
the series also misses a cover letter.

On Wed, Apr 02, 2025 at 03:09:34PM +0800, LongPing Wei wrote:
> 1. call blk_flush_plug when cache hit as the address of the subsequent
>  bio is no longer contiguous with the previous bio;

As you found out blk_flush_plug is not exported, and that for a good
reason.  This also completely fails to explain why you want to do
this and what the measured benefit is.

> 2. skip cond_resched when ioprio class is rt;

Same here.  Also these look compeltely unrelated and I have no idea
why they are in the same patch.





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