Re: [PATCH v15 05/12] fs/read_write: Enable copy_file_range for block device.

From: Hannes Reinecke
Date: Fri Sep 08 2023 - 02:07:47 EST


On 9/6/23 18:38, Nitesh Shetty wrote:
From: Anuj Gupta <anuj20.g@xxxxxxxxxxx>

This is a prep patch. Allow copy_file_range to work for block devices.
Relaxing generic_copy_file_checks allows us to reuse the existing infra,
instead of adding a new user interface for block copy offload.
Change generic_copy_file_checks to use ->f_mapping->host for both inode_in
and inode_out. Allow block device in generic_file_rw_checks.

Signed-off-by: Anuj Gupta <anuj20.g@xxxxxxxxxxx>
Signed-off-by: Nitesh Shetty <nj.shetty@xxxxxxxxxxx>
---
fs/read_write.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)


Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@xxxxxxx +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Ivo Totev, Andrew
Myers, Andrew McDonald, Martje Boudien Moerman