xen/pvcalls: implement write

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When the other end notifies us that there is data to be written
(pvcalls_back_conn_event), increment the io and write counters, and
schedule the ioworker.

Implement the write function called by ioworker by reading the data from
the data ring, writing it to the socket by calling inet_sendmsg.

Set out_error on error.

Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

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Stefano Stabellini 2017-07-06 11:01:08 -07:00 • committed by Boris Ostrovsky

parent b3f9f773af

commit 5ad9918ffc

1 changed files with 71 additions and 0 deletions

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drivers/xen/pvcalls-back.c

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