A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 10:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

lguest: update commentry

Browse source 
Signed-off-by: Rusty Russell <[email protected]>
This commit is contained in:
Rusty Russell 2008-08-26 00:19:27 -05:00
commit 1dc3e3bcbf
2 changed files with 16 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

8
Documentation/lguest/lguest.c
View file

@ -895,6 +895,9 @@ static void handle_console_output(int fd, struct virtqueue *vq, bool timeout)
}
}
/* This is called when we no longer want to hear about Guest changes to a
* virtqueue. This is more efficient in high-traffic cases, but it means we
* have to set a timer to check if any more changes have occurred. */
static void block_vq(struct virtqueue *vq)
{
struct itimerval itm;
@ -939,6 +942,11 @@ static void handle_net_output(int fd, struct virtqueue *vq, bool timeout)
if (!timeout && num)
block_vq(vq);
/* We never quite know how long should we wait before we check the
* queue again for more packets. We start at 500 microseconds, and if
* we get fewer packets than last time, we assume we made the timeout
* too small and increase it by 10 microseconds. Otherwise, we drop it
* by one microsecond every time. It seems to work well enough. */
if (timeout) {
if (num < last_timeout_num)
timeout_usec += 10;