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81a8deab1c
linux/drivers
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Rusty Russell 81a8deab1c virtio: handle interrupts after callbacks turned off 
Anthony Liguori found double interrupt suppression in the virtio_net
driver, triggered by two skb_recv_done's in a row.  This is because
virtio_ring's interrupt suppression is a best-effort optimization: it
contains no synchronization so the host can miss it and still send
interrupts.

But it's certainly nicer for virtio users if calling disable_cb
actually disables callbacks, so we check for the race in the interrupt
routine.

Note: SMP guests might require syncronization here, but since
disable_cb is actually called from interrupt context, there has to be
some form of synchronization before the next same interrupt handler is
called (Linux guarantees that the same device's irq handler will never
run simultanously on multiple CPUs).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-02-04 23:50:04 +11:00
..
acorn/char
acpi ACPI: Print message before calling _PTS 2008-02-01 18:30:58 -05:00
amba
ata Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6 2008-02-02 14:29:33 +11:00
atm [ATM]: [he] fixing compilation when you define USE_RBPS_POOL/USE_RBPL_POOL 2008-01-28 15:00:15 -08:00
auxdisplay
base PM: Make PM_TRACE more architecture independent 2008-02-01 18:30:54 -05:00
block virtio: reset function 2008-02-04 23:50:03 +11:00
bluetooth
cdrom ide-cd: move lba_to_msf() and msf_to_lba() to <linux/cdrom.h> 2008-02-01 23:09:24 +01:00
char virtio: simplify config mechanism. 2008-02-04 23:49:57 +11:00
clocksource
connector [NETNS]: Consolidate kernel netlink socket destruction. 2008-01-28 15:08:07 -08:00
cpufreq cpufreq: fix obvious condition statement error 2008-01-30 13:33:34 +01:00
cpuidle
crypto [S390] crypto: move s390 Kconfig options. 2008-01-26 14:11:17 +01:00
dca
dio
dma
edac Merge branch 'linux-2.6' 2008-01-31 11:25:51 +11:00
eisa
firewire firewire: fw-sbp2: Use sbp2 device-provided mgt orb timeout for logins 2008-01-30 22:22:29 +01:00
firmware x86: left over fix for leak of early_ioremp in dmi_scan 2008-01-30 13:33:32 +01:00
hid HID: ADS/Tech Radio si470x needs blacklist entry 2008-01-28 14:51:23 +01:00
hwmon
i2c PCI: Remove users of pci_enable_device_bars() 2008-02-01 15:04:27 -08:00
ide ide-tape: remove idetape_config_t typedef 2008-02-02 19:56:51 +01:00
ieee1394 ieee1394: sbp2: fix bogus s/g access change 2008-02-02 13:48:16 +01:00
infiniband [SCSI] remove use_sg_chaining 2008-01-30 13:14:02 -06:00
input [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
isdn
leds
lguest virtio: reset function 2008-02-04 23:50:03 +11:00
macintosh ide: add 'init_default' and 'restore' arguments to ide_unregister() 2008-02-02 19:56:39 +01:00
mca
md
media [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
message blk_end_request: changing i2o_block (take 4) 2008-01-28 10:36:50 +01:00
mfd [ARM] Fix class_device damage caused by 0c55445f20 2008-01-28 10:59:09 +00:00
misc
mmc Merge branch 'blk-end-request' of git://git.kernel.dk/linux-2.6-block 2008-01-29 08:51:32 +11:00
mtd
net virtio: reset function 2008-02-04 23:50:03 +11:00
nubus
of
oprofile
parisc [PARISC]: Fix build after ipv4_is_*() changes. 2008-01-28 14:58:20 -08:00
parport
pci Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6 2008-02-02 14:29:33 +11:00
pcmcia [ARM] pxa: move memory controller registers into pxa2xx-regs.h 2008-01-26 15:07:54 +00:00
pnp git-x86: drivers/pnp/pnpbios/bioscalls.c build fix 2008-01-30 13:32:31 +01:00
power apm_power: check I.intval for zero value, we use it as the divisor 2008-02-02 02:44:34 +03:00
ps3
rapidio Merge branch 'linux-2.6' 2008-01-31 11:25:51 +11:00
rtc Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2008-01-29 08:52:50 +11:00
s390 [SCSI] zfcp: fix sense_buffer access bug 2008-01-30 13:03:39 -06:00
sbus
scsi ide-scsi: remove needless SELECT_DRIVE() call 2008-02-02 19:56:46 +01:00
serial m68knommu: use container_of in mcf.c 2008-02-01 21:00:01 +11:00
sh
sn
spi Merge branch 'linux-2.6' 2008-01-31 11:25:51 +11:00
ssb ssb: Add boardflags_hi field to the sprom data structure 2008-01-28 15:09:52 -08:00
tc
telephony
uio
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6 2008-02-02 14:29:33 +11:00
video USB: sisusb: *_ioctl32_conversion functions do not exist in recent kernels 2008-02-01 14:34:48 -08:00
virtio virtio: handle interrupts after callbacks turned off 2008-02-04 23:50:04 +11:00
w1 i2c: normal_i2c can be made const (remaining drivers) 2008-01-27 18:14:47 +01:00
watchdog [WATCHDOG] use SGI_HAS_INDYDOG for INDYDOG depends 2008-01-29 12:58:38 +00:00
xen
zorro
Kconfig KVM: Move arch dependent files to new directory arch/x86/kvm/ 2008-01-30 18:01:18 +02:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2008-01-31 09:35:32 +11:00