freebsd-nq/sys/dev/hyperv/storvsc
Andriy Gapon efdba95d62 storvsc: port a Linux patch, properly set residual data length on errors
This change is based on Linux commit 40630f462824ee.  csio.resid should
account for transfer_len only for success and SRB_STATUS_DATA_OVERRUN
condition.

I am not sure how exactly this change works, but I have a report from a
user that they see lots of checksum errors when running a pool scrub
concurrently with iozone -l 1 -s 100G.  After applying this patch the
problem cannot be reproduced.

Reviewed by:	nobody
Sponsored by:	CyberSecure
Differential Revision: https://reviews.freebsd.org/D22312
2020-01-14 13:20:16 +00:00
..
hv_storvsc_drv_freebsd.c storvsc: port a Linux patch, properly set residual data length on errors 2020-01-14 13:20:16 +00:00
hv_vstorage.h storvsc: port a Linux patch, properly set residual data length on errors 2020-01-14 13:20:16 +00:00