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Re: [PATCH 02/14] ubd: untagle discard vs write zeroes not support handling


  • To: Christoph Hellwig <hch@xxxxxx>
  • From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
  • Date: Thu, 13 Jun 2024 21:36:04 -0400
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  • Cc: Jens Axboe <axboe@xxxxxxxxx>, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, Richard Weinberger <richard@xxxxxx>, Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>, Johannes Berg <johannes@xxxxxxxxxxxxxxxx>, Josef Bacik <josef@xxxxxxxxxxxxxx>, Ilya Dryomov <idryomov@xxxxxxxxx>, Dongsheng Yang <dongsheng.yang@xxxxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, linux-um@xxxxxxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, nbd@xxxxxxxxxxxxxxxx, ceph-devel@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, Bart Van Assche <bvanassche@xxxxxxx>, Damien Le Moal <dlemoal@xxxxxxxxxx>
  • Delivery-date: Fri, 14 Jun 2024 01:36:38 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

Christoph,

> Discard and Write Zeroes are different operation and implemented
> by different fallocate opcodes for ubd.  If one fails the other one
> can work and vice versa.
>
> Split the code to disable the operations in ubd_handler to only
> disable the operation that actually failed.

Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

-- 
Martin K. Petersen      Oracle Linux Engineering



 


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