Re: [PATCH 0/8] Zone management commands support

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

 



On 10/27/19 8:05 AM, Damien Le Moal wrote:
> This series implements a few improvements and cleanups to zone block
> device zone reset operations with the first three patches.
> 
> The remaining of the series patches introduce zone open, close and
> finish support, allowing users of zoned block devices to explicitly
> control the condition (state) of zones.
> 
> While these operations are not stricktly necessary for the correct
> operation of zoned block devices, the open and close operations can
> improve performance for some device implementations of the ZBC and ZAC
> standards under write workloads. The finish zone operation, which
> transition a zone to the full state, can also be useful to protect a
> zone data by preventing further zone writes.
> 
> These operations are implemented by introducing the new
> REQ_OP_ZONE_OPEN, REQ_OP_ZONE_CLOSE and REQ_OP_ZONE_FINISH request codes
> and the function blkdev_zone_mgmt() to issue these requests. This new
> function also replaces the former blkdev_reset_zones() function to reset
> zones write pointer.
> 
> The new ioctls BLKOPENZONE, BLKCLOSEZONE and BLKFINISHZONE are also
> defined to allow applications to issue these new requests without
> resorting to a device passthrough interface (e.g. SG_IO).
> 
> Support for these operations is added to the SCSI sd driver, to the dm
> infrastructure (dm-linear and dm-flakey targets) and to the null_blk
> driver.

Applied for 5.5, thanks. I've got the last sd patch pending, the conflict
is rather ugly. I'll setup a post branch for drivers with this in, once
the dependent fix has landed in Linus's tree.

-- 
Jens Axboe

--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel




[Index of Archives]     [DM Crypt]     [Fedora Desktop]     [ATA RAID]     [Fedora Marketing]     [Fedora Packaging]     [Fedora SELinux]     [Yosemite Discussion]     [KDE Users]     [Fedora Docs]

  Powered by Linux