Revision 42b5212fee4f57907e9415b18fe19c13e65574bc authored by David Vrabel on 02 February 2015, 16:57:51 UTC, committed by David S. Miller on 03 February 2015, 03:39:04 UTC
After commit e9d8b2c2968499c1f96563e6522c56958d5a1d0d (xen-netback: disable rogue vif in kthread context), a fatal (protocol) error would leave the guest Rx thread spinning, wasting CPU time. Commit ecf08d2dbb96d5a4b4bcc53a39e8d29cc8fef02e (xen-netback: reintroduce guest Rx stall detection) made this even worse by removing a cond_resched() from this path. Since a fatal error is non-recoverable, just allow the guest Rx thread to exit. This requires taking additional refs to the task so the thread exiting early is handled safely. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Reported-by: Julien Grall <julien.grall@linaro.org> Tested-by: Julien Grall <julien.grall@linaro.org> Acked-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 5a2e87b
File | Mode | Size |
---|---|---|
Kconfig | -rw-r--r-- | 64.2 KB |
Makefile | -rw-r--r-- | 1.1 KB |
calibrate.c | -rw-r--r-- | 8.5 KB |
do_mounts.c | -rw-r--r-- | 14.4 KB |
do_mounts.h | -rw-r--r-- | 1.4 KB |
do_mounts_initrd.c | -rw-r--r-- | 3.4 KB |
do_mounts_md.c | -rw-r--r-- | 8.2 KB |
do_mounts_rd.c | -rw-r--r-- | 8.7 KB |
init_task.c | -rw-r--r-- | 728 bytes |
initramfs.c | -rw-r--r-- | 13.8 KB |
main.c | -rw-r--r-- | 24.9 KB |
noinitramfs.c | -rw-r--r-- | 1.5 KB |
version.c | -rw-r--r-- | 1.2 KB |
Computing file changes ...