linux-ext4 - Re: [PATCH v3 0/2] block: enable per-cpu bio cache by default

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Message-Id: <d9210bcdf73fbe1ac8b6ec132865609a3ed68688.198e8c10.5c50.4606.8f05.84122efb6429@bytedance.com>
Date: Wed, 03 Dec 2025 16:31:02 +0800
From: "changfengnan" <changfengnan@...edance.com>
To: <axboe@...nel.dk>, <viro@...iv.linux.org.uk>, <brauner@...nel.org>, 
	<jack@...e.cz>, <asml.silence@...il.com>, <willy@...radead.org>, 
	<djwong@...nel.org>, <hch@...radead.org>, <ritesh.list@...il.com>, 
	<linux-fsdevel@...r.kernel.org>, <io-uring@...r.kernel.org>, 
	<linux-xfs@...r.kernel.org>, <linux-ext4@...r.kernel.org>, 
	<linux-block@...r.kernel.org>, <ming.lei@...hat.com>, 
	<linux-nvme@...ts.infradead.org>
Subject: Re: [PATCH v3 0/2] block: enable per-cpu bio cache by default

Ping

> From: "Fengnan Chang"<changfengnan@...edance.com>
> Date:  Fri, Nov 14, 2025, 17:22
> Subject:  [PATCH v3 0/2] block: enable per-cpu bio cache by default
> To: <axboe@...nel.dk>, <viro@...iv.linux.org.uk>, <brauner@...nel.org>, <jack@...e.cz>, <asml.silence@...il.com>, <willy@...radead.org>, <djwong@...nel.org>, <hch@...radead.org>, <ritesh.list@...il.com>, <linux-fsdevel@...r.kernel.org>, <io-uring@...r.kernel.org>, <linux-xfs@...r.kernel.org>, <linux-ext4@...r.kernel.org>, <linux-block@...r.kernel.org>, <ming.lei@...hat.com>, <linux-nvme@...ts.infradead.org>
> Cc: "Fengnan Chang"<changfengnan@...edance.com>
> For now, per-cpu bio cache was only used in the io_uring + raw block

> device, filesystem also can use this to improve performance.

> After discussion in [1], we think it's better to enable per-cpu bio cache

> by default.

> 
> v3:

> fix some build warnings.

> 
> v2:

> enable per-cpu bio cache for passthru IO by default.

> 
> v1:

> https://lore.kernel.org/linux-fsdevel/CAPFOzZs5mJ9Ts+TYkhioO8aAYfzevcgw7O3hjexFNb_tM+kEZA@mail.gmail.com/

> 
> [1] https://lore.kernel.org/linux-fsdevel/c4bc7c33-b1e1-47d1-9d22-b189c86c6c7d@gmail.com/

> 
> 
> Fengnan Chang (2):

>   block: use bio_alloc_bioset for passthru IO by default

>   block: enable per-cpu bio cache by default

> 
>  block/bio.c               | 26 ++++++-----

>  block/blk-map.c           | 90 ++++++++++++++++-----------------------

>  block/fops.c              |  4 --

>  drivers/nvme/host/ioctl.c |  2 +-

>  include/linux/fs.h        |  3 --

>  io_uring/rw.c             |  1 -

>  6 files changed, 49 insertions(+), 77 deletions(-)

> 
> 
> base-commit: 4a0c9b3391999818e2c5b93719699b255be1f682

> -- 

> 2.39.5 (Apple Git-154)
>