On Tue, Aug 01, 2023 at 06:37:02PM +0530, Nitesh Shetty wrote:
> On 23/07/20 09:50AM, Christoph Hellwig wrote:
> > > +static void *blkdev_copy_alloc_buf(sector_t req_size, sector_t
> > > *alloc_size,
> > > + gfp_t gfp_mask)
> > > +{
> > > + int min_size = PAGE_SIZE;
> > > + void *buf;
> >
On 23/07/20 09:50AM, Christoph Hellwig wrote:
+static void *blkdev_copy_alloc_buf(sector_t req_size, sector_t *alloc_size,
+ gfp_t gfp_mask)
+{
+ int min_size = PAGE_SIZE;
+ void *buf;
+
+ while (req_size >= min_size) {
+ buf = kvmalloc(req_size, gfp_
> +static void *blkdev_copy_alloc_buf(sector_t req_size, sector_t *alloc_size,
> + gfp_t gfp_mask)
> +{
> + int min_size = PAGE_SIZE;
> + void *buf;
> +
> + while (req_size >= min_size) {
> + buf = kvmalloc(req_size, gfp_mask);
> + if (buf) {
> +
On 6/28/23 03:36, Nitesh Shetty wrote:
> For the devices which does not support copy, copy emulation is added.
> It is required for in-kernel users like fabrics, where file descriptor is
> not available and hence they can't use copy_file_range.
> Copy-emulation is implemented by reading from source
On 23/06/29 04:33PM, Ming Lei wrote:
Hi Nitesh,
On Wed, Jun 28, 2023 at 12:06:17AM +0530, Nitesh Shetty wrote:
For the devices which does not support copy, copy emulation is added.
It is required for in-kernel users like fabrics, where file descriptor is
I can understand copy command does hel
Hi Nitesh,
On Wed, Jun 28, 2023 at 12:06:17AM +0530, Nitesh Shetty wrote:
> For the devices which does not support copy, copy emulation is added.
> It is required for in-kernel users like fabrics, where file descriptor is
I can understand copy command does help for FS GC and fabrics storages,
but
On 23/06/28 03:50PM, Damien Le Moal wrote:
On 6/28/23 03:36, Nitesh Shetty wrote:
For the devices which does not support copy, copy emulation is added.
It is required for in-kernel users like fabrics, where file descriptor is
not available and hence they can't use copy_file_range.
Copy-emulation
