On 2/4/22 5:09 AM, Mikulas Patocka wrote:
>
>
> On Thu, 3 Feb 2022, Bart Van Assche wrote:
>
>> On 2/3/22 10:50, Mikulas Patocka wrote:
>>> On Tue, 1 Feb 2022, Bart Van Assche wrote:
On 2/1/22 10:32, Mikulas Patocka wrote:
>/**
> + * blk_queue_max_copy_sectors - set maximum
On Thu, 3 Feb 2022, Bart Van Assche wrote:
> On 2/3/22 10:50, Mikulas Patocka wrote:
> > On Tue, 1 Feb 2022, Bart Van Assche wrote:
> > > On 2/1/22 10:32, Mikulas Patocka wrote:
> > > >/**
> > > > + * blk_queue_max_copy_sectors - set maximum copy offload sectors for
> > > > the
> > > >
On Thu, Feb 03, 2022 at 01:50:06PM -0500, Mikulas Patocka wrote:
> On Tue, 1 Feb 2022, Bart Van Assche wrote:
> > Only supporting copying between contiguous LBA ranges seems restrictive to
> > me.
> > I expect garbage collection by filesystems for UFS devices to perform better
> > if multiple LBA
On 2/3/22 10:50, Mikulas Patocka wrote:
On Tue, 1 Feb 2022, Bart Van Assche wrote:
On 2/1/22 10:32, Mikulas Patocka wrote:
/**
+ * blk_queue_max_copy_sectors - set maximum copy offload sectors for the
queue
+ * @q: the request queue for the device
+ * @size: the maximum copy offload
On Tue, 1 Feb 2022, Bart Van Assche wrote:
> On 2/1/22 10:32, Mikulas Patocka wrote:
> > /**
> > + * blk_queue_max_copy_sectors - set maximum copy offload sectors for the
> > queue
> > + * @q: the request queue for the device
> > + * @size: the maximum copy offload sectors
> > + */
> >
On Tue, Feb 01, 2022 at 01:32:29PM -0500, Mikulas Patocka wrote:
> +int blkdev_issue_copy(struct block_device *bdev1, sector_t sector1,
> + struct block_device *bdev2, sector_t sector2,
> + sector_t nr_sects, sector_t *copied, gfp_t gfp_mask)
> +{
> + struct
On Wed, 2 Feb 2022, Keith Busch wrote:
> On Tue, Feb 01, 2022 at 01:32:29PM -0500, Mikulas Patocka wrote:
> > +int blkdev_issue_copy(struct block_device *bdev1, sector_t sector1,
> > + struct block_device *bdev2, sector_t sector2,
> > + sector_t nr_sects,
On 2/1/22 10:32, Mikulas Patocka wrote:
/**
+ * blk_queue_max_copy_sectors - set maximum copy offload sectors for the queue
+ * @q: the request queue for the device
+ * @size: the maximum copy offload sectors
+ */
+void blk_queue_max_copy_sectors(struct request_queue *q, unsigned int size)
Add generic copy offload support to the block layer.
We add two new bio types: REQ_OP_COPY_READ_TOKEN and
REQ_OP_COPY_WRITE_TOKEN. Their bio vector has one entry - a page
containing the token.
When we need to copy data, we send REQ_OP_COPY_READ_TOKEN to the source
device and then we send
