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Amit Shah 2b8f41d846 virtio: console: Add freeze and restore handlers to support S4 
Remove all vqs and associated buffers in the freeze callback which
prepares us to go into hibernation state.  On restore, re-create all the
vqs and populate the input vqs with buffers to get to the pre-hibernate
state.

Note: Any outstanding unconsumed buffers are discarded; which means
there's a possibility of data loss in case the host or the guest didn't
consume any data already present in the vqs.  This can be addressed in a
later patch series, perhaps in virtio common code.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 		2012-01-12 15:44:45 +10:30
..
agp agp: Fix multi-line warning message whitespace 2012-01-06 09:32:02 +00:00
hw_random virtio: rename virtqueue_add_buf_gfp to virtqueue_add_buf 2012-01-12 15:44:42 +10:30
ipmi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-01-08 13:21:22 -08:00
mwave Fix common misspellings 2011-03-31 11:26:23 -03:00
pcmcia pcmcia: Convert pcmcia_device_id declarations to const 2011-05-06 07:46:22 +02:00
tpm Merge branch 'next' of git://selinuxproject.org/~jmorris/linux-security 2011-10-25 09:45:31 +02:00
xilinx_hwicap treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
Kconfig um: switch to use of drivers/Kconfig 2011-11-02 14:15:41 +01:00
Makefile arch/tile: add hypervisor-based character driver for SPI flash ROM 2011-06-10 13:07:48 -04:00
apm-emulation.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-10-25 12:11:02 +02:00
applicom.c drivers/char/applicom.c: fix information leak to userland 2010-10-27 18:03:14 -07:00
applicom.h
…
bfin-otp.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
briq_panel.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
bsr.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
ds1302.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
ds1620.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
dsp56k.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
dtlk.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
efirtc.c efirtc: explicitly set llseek to no_llseek 2009-12-16 07:19:59 -08:00
generic_nvram.c drivers: fix up various ->llseek() implementations 2011-07-20 20:47:58 -04:00
genrtc.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
hangcheck-timer.c Input: sysrq - drop tty argument form handle_sysrq() 2010-08-21 00:34:45 -07:00
hpet.c Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-07-22 17:05:15 -07:00
i8k.c i8k: Integrate with the hwmon subsystem 2011-05-25 20:43:33 +02:00
lp.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
mbcs.c drivers: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:04 +02:00
mbcs.h Fix common misspellings 2011-03-31 11:26:23 -03:00
mem.c switch device_get_devnode() and ->devnode() to umode_t * 2012-01-03 22:54:55 -05:00
misc.c switch device_get_devnode() and ->devnode() to umode_t * 2012-01-03 22:54:55 -05:00
mmtimer.c posix-timers: Cleanup namespace 2011-02-02 15:28:19 +01:00
msm_smd_pkt.c drivers/char/msm_smd_pkt.c: don't use IS_ERR() 2011-08-25 16:25:33 -07:00
mspec.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
nsc_gpio.c
…
nvram.c drivers: fix up various ->llseek() implementations 2011-07-20 20:47:58 -04:00
nwbutton.c Fix common misspellings 2011-03-31 11:26:23 -03:00
nwbutton.h
…
nwflash.c drivers: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:04 +02:00
pc8736x_gpio.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
ppdev.c drivers/char/ppdev.c: put gotten port value 2011-05-26 17:12:37 -07:00
ps3flash.c drivers/char: Add module.h to those who were using it implicitly 2011-10-31 19:31:40 -04:00
ramoops.c drivers/char: Fix implicit use of err.h in ramoops.c 2011-10-31 19:31:42 -04:00
random.c random: Use arch_get_random_int instead of cycle counter if avail 2011-12-29 16:49:45 -08:00
raw.c switch device_get_devnode() and ->devnode() to umode_t * 2012-01-03 22:54:55 -05:00
rtc.c drivers/char/rtc: use printk_ratelimited instead of printk_ratelimit 2011-09-15 14:05:25 +02:00
scx200_gpio.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
snsc.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
snsc.h headers: kobject.h redux 2011-01-10 08:51:44 -08:00
snsc_event.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sonypi.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tb0219.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
tile-srom.c switch device_get_devnode() and ->devnode() to umode_t * 2012-01-03 22:54:55 -05:00
tlclk.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
toshiba.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
ttyprintk.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
uv_mmtimer.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
viotape.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
virtio_console.c virtio: console: Add freeze and restore handlers to support S4 2012-01-12 15:44:45 +10:30