Re: [PATCHv2] blk-mq: remove hybrid polling

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On Mon, Mar 20, 2023 at 12:49:26PM -0700, Keith Busch wrote:
> From: Keith Busch <kbusch@xxxxxxxxxx>
> io_uring provides the only way user space can poll completions, and that
> always sets BLK_POLL_NOSLEEP. This effectively makes hybrid polling dead
> code, so remove it and everything supporting it.

Hybrid polling was effectively killed off with 9650b453a3d4b1, "block: ignore
RWF_HIPRI hint for sync dio", so we could add a "Fixes: " for that. It was
still potentially reachable through io_uring until d729cf9acb93119, "io_uring:
don't sleep when polling for I/O", but hybrid polling probably should not have
been reachable through that async interface from the beginning.

[Index of Archives]     [Linux Samsung SoC]     [Linux Rockchip SoC]     [Linux Actions SoC]     [Linux for Synopsys ARC Processors]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux