Stefan Hajnoczi d4c19cdeeb virtio-serial: add missing virtio_detach_element() call ...

Ports enter a "throttled" state when writing to the chardev would block.
The current output VirtQueueElement is kept around until the chardev
becomes writable again.

There are several places in the virtio-serial lifecycle where the
VirtQueueElement should be thrown away.  For example, if the virtio
device is reset then virtqueue elements are no longer valid.

This patch adds the discard_throttle_data() function to unmap the
scatter-gather list and decrement vq->inuse.  This ensures that the
VirtQueueElement is freed properly.

Cc: amit.shah@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2016-10-10 01:16:58 +03:00

..

bcm2835_aux.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

cadence_uart.c

* serial port fixes (Paolo)

2016-06-29 19:14:48 +01:00

debugcon.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

digic-uart.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

escc.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

etraxfs_ser.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

exynos4210_uart.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

grlib_apbuart.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

imx_serial.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

ipoctal232.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

lm32_juart.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

lm32_uart.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

Makefile.objs

…

mcf_uart.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

milkymist-uart.c

…

omap_uart.c

…

parallel.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

pl011.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

sclpconsole-lm.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

sclpconsole.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

serial-isa.c

…

serial-pci.c

…

serial.c

serial: reinstate watch after migration

2016-06-29 14:03:47 +02:00

sh_serial.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

spapr_vty.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

stm32f2xx_usart.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

trace-events

trace-events: fix first line comment in trace-events

2016-08-12 10:36:01 +01:00

virtio-console.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00

virtio-serial-bus.c

virtio-serial: add missing virtio_detach_element() call

2016-10-10 01:16:58 +03:00

xen_console.c

…

xilinx_uartlite.c

hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all

2016-09-13 19:09:42 +02:00