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SubjectRe: [PATCH] loop: Only change blocksize when needed.
Logically this is a right thing to do, but I wonder how much speedup
you are getting with these improvements ?
It will be great if you have some numbers so we all know the speedup.

Irrespective of that, this looks good to me.

Reviewed-by: Chaitanya Kulkarni <>

On 03/10/2020 06:17 AM, Martijn Coenen wrote:
> Return early in loop_set_block_size() if the requested block size is
> identical to the one we already have; this avoids expensive calls to
> freeze the block queue.
> Signed-off-by: Martijn Coenen<>

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