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

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Complete backport of vhost_exceeds_weight to android-4.4-p

Test: Compiles
Bug: 143972019
Change-Id: Ifafc3321332d9033be75123e761d7da7d8586e4c
Signed-off-by: Cody Schuffelen <schuffelen@google.com>
This commit is contained in:
Cody Schuffelen 2019-11-13 18:25:50 -08:00
parent 903fbe76b8
commit e4575a2d22
1 changed files with 10 additions and 1 deletions
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11
drivers/vhost/vsock.c
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@ -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);