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Commit e4575a2d authored by Cody Schuffelen's avatar Cody Schuffelen
Browse files

commit e82b9b0727ff ("vhost: introduce vhost_exceeds_weight()") 



Complete backport of vhost_exceeds_weight to android-4.4-p

Test: Compiles
Bug: 143972019
Change-Id: Ifafc3321332d9033be75123e761d7da7d8586e4c
Signed-off-by: default avatarCody Schuffelen <schuffelen@google.com>
parent 903fbe76

drivers/vhost/vsock.c

+10 −1
Original line number Diff line number Diff line
@@ -21,6 +21,14 @@ 
#include "vhost.h"



#define VHOST_VSOCK_DEFAULT_HOST_CID	2

/* Max number of bytes transferred before requeueing the job.

 * Using this limit prevents one virtqueue from starving others. */

#define VHOST_VSOCK_WEIGHT 0x80000

/* Max number of packets transferred before requeueing the job.

 * Using this limit prevents one virtqueue from starving others with

 * small pkts.

 */

#define VHOST_VSOCK_PKT_WEIGHT 256



enum {

	VHOST_VSOCK_FEATURES = VHOST_FEATURES,
@@ -529,7 +537,8 @@ static int vhost_vsock_dev_open(struct inode *inode, struct file *file) 
	vsock->vqs[VSOCK_VQ_TX].handle_kick = vhost_vsock_handle_tx_kick;

	vsock->vqs[VSOCK_VQ_RX].handle_kick = vhost_vsock_handle_rx_kick;



	vhost_dev_init(&vsock->dev, vqs, ARRAY_SIZE(vsock->vqs));

	vhost_dev_init(&vsock->dev, vqs, ARRAY_SIZE(vsock->vqs),

		       VHOST_VSOCK_PKT_WEIGHT, VHOST_VSOCK_WEIGHT);



	file->private_data = vsock;

	spin_lock_init(&vsock->send_pkt_list_lock);