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adddc32d6f
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Sowmini Varadhan adddc32d6f sunvnet: Do not spin in an infinite loop when vio_ldc_send() returns EAGAIN 
ldc_rx -> vnet_rx -> .. -> vnet_walk_rx->vnet_send_ack should not
spin into an infinite loop waiting  EAGAIN to lift.

The sender could have sent us a burst, and gone to lunch without
doing any more ldc_read()'s. That should not cause the receiver to
loop infinitely till soft-lockup kicks in.

Similarly __vnet_tx_trigger should only loop on EAGAIN a finite
number of times. The caller (vnet_start_xmit()) already has code
to reset the dring state and bail on errors from __vnet_tx_trigger

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Raghuram Kothakota <raghuram.kothakota@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-13 20:04:46 -07:00
..
accessibility
acpi Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-13 18:23:32 -06:00
amba
ata Merge branch 'akpm' (patchbomb from Andrew Morton) 2014-08-06 21:14:42 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-08-13 18:27:40 -06:00
auxdisplay
base Merge branch 'akpm' (patchbomb from Andrew Morton) 2014-08-06 21:14:42 -07:00
bcma bcma: use NS prefix for names of Northstar specific cores 2014-07-31 13:45:32 -04:00
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2014-08-13 17:43:29 -06:00
bluetooth Bluetooth: Fix crash in the Marvell driver initialization codepath 2014-07-31 01:07:28 +02:00
bus ARM: SoC driver changes for 3.17 2014-08-08 11:34:32 -07:00
cdrom
char Cheers, 2014-08-10 21:31:04 -07:00
clk ARM: SoC platform changes for 3.17 2014-08-08 11:14:29 -07:00
clocksource ARM: SoC platform changes for 3.17 2014-08-08 11:14:29 -07:00
connector
cpufreq ARM: SoC platform changes for 3.17 2014-08-08 11:14:29 -07:00
cpuidle ARM: EXYNOS: Fix suspend/resume sequences 2014-08-09 08:24:36 -07:00
crypto crypto: use pci_zalloc_consistent 2014-08-08 15:57:28 -07:00
dca
devfreq
dio
dma Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-08-11 07:14:01 -07:00
dma-buf
edac Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-04 17:21:59 -07:00
eisa
extcon
firewire Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-08-06 09:38:14 -07:00
firmware kexec: support kexec/kdump on EFI systems 2014-08-08 15:57:33 -07:00
fmc
gpio This is the bulk of GPIO changes for the v3.17 development 2014-08-08 18:00:35 -07:00
gpu Merge branch 'linux-3.17' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 2014-08-09 17:46:39 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-08-08 17:39:48 -07:00
hsi HSI changes for the v3.17 series 2014-08-06 20:06:14 -07:00
hv Char / Misc driver patches for 3.17-rc1 2014-08-04 17:32:24 -07:00
hwmon fs.h, drivers/hwmon/asus_atk0110.c: fix DEFINE_SIMPLE_ATTRIBUTE semicolon definition and use 2014-08-06 18:01:23 -07:00
hwspinlock
i2c Merge branch 'i2c/for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2014-08-09 09:15:07 -07:00
ide ide: use module_platform_driver() 2014-08-05 21:16:46 -07:00
idle
iio Staging driver patches for 3.17-rc1 2014-08-04 18:36:12 -07:00
infiniband infiniband: use pci_zalloc_consistent 2014-08-08 15:57:28 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-08-08 17:39:48 -07:00
iommu ARM: SoC cleanups for 3.17 2014-08-08 11:00:26 -07:00
ipack
irqchip ARM: SoC platform changes for 3.17 2014-08-08 11:14:29 -07:00
isdn net: filter: split 'struct sk_filter' into socket and bpf parts 2014-08-02 15:03:58 -07:00
leds ARM: SoC driver changes for 3.17 2014-08-08 11:34:32 -07:00
lguest mm/vmalloc.c: clean up map_vm_area third argument 2014-08-06 18:01:19 -07:00
macintosh == Changes to existing drivers == 2014-08-07 17:23:16 -07:00
mailbox
mcb
md md updates for 3.17 2014-08-11 07:02:35 -07:00
media media: use pci_zalloc_consistent 2014-08-08 15:57:28 -07:00
memory
memstick
message
mfd == Changes to existing drivers == 2014-08-07 17:17:39 -07:00
misc ARM: SoC driver changes for 3.17 2014-08-08 11:34:32 -07:00
mmc == Changes to existing drivers == 2014-08-07 17:17:39 -07:00
mtd No significant changes, mostly small fixes here and there. The more important 2014-08-13 17:42:11 -06:00
net sunvnet: Do not spin in an infinite loop when vio_ldc_send() returns EAGAIN 2014-08-13 20:04:46 -07:00
nfc
ntb
nubus
of Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-05 17:46:42 -07:00
oprofile
parisc
parport drivers/parport/parport_ip32.c: use PTR_ERR_OR_ZERO 2014-08-08 15:57:25 -07:00
pci ARM: SoC driver changes for 3.17 2014-08-08 11:34:32 -07:00
pcmcia Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-08-07 08:50:34 -07:00
phy ARM: SoC driver changes for 3.17 2014-08-08 11:34:32 -07:00
pinctrl ARM: SoC driver changes for 3.17 2014-08-08 11:34:32 -07:00
platform platform/chrome: Updates for 3.17 2014-08-10 11:13:58 -07:00
pnp
power ARM: SoC platform changes for 3.17 2014-08-08 11:14:29 -07:00
powercap
pps
ps3
ptp
pwm pwm: Changes for v3.17-rc1 2014-08-08 18:06:29 -07:00
rapidio rapidio/tsi721_dma: rework scatter-gather list handling 2014-08-08 15:57:24 -07:00
ras
regulator == Changes to existing drivers == 2014-08-07 17:17:39 -07:00
remoteproc
reset
rpmsg
rtc Merge branch 'akpm' (second patchbomb from Andrew Morton) 2014-08-08 15:57:47 -07:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2014-08-07 08:41:00 -07:00
sbus Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2014-08-05 18:57:18 -07:00
scsi scsi: use pci_zalloc_consistent 2014-08-08 15:57:29 -07:00
sfi
sh
sn
soc
spi ARM: SoC cleanups for 3.17 2014-08-08 11:00:26 -07:00
spmi
ssb
staging Merge branch 'akpm' (second patchbomb from Andrew Morton) 2014-08-08 15:57:47 -07:00
target SCSI misc on 20140806 2014-08-06 20:10:32 -07:00
tc
thermal
thunderbolt
tty Merge branch 'akpm' (second patchbomb from Andrew Morton) 2014-08-08 15:57:47 -07:00
uio
usb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-08-06 21:03:53 -07:00
uwb uwb/whci: use correct structure type name in sizeof 2014-08-01 15:48:08 -07:00
vfio drivers/vfio: EEH support for VFIO PCI device 2014-08-05 15:28:48 +10:00
vhost
video This finally applies the stricter sysfs perms checking we pulled out 2014-08-10 21:31:58 -07:00
virt
virtio
vlynq
vme vme: bridges: use pci_zalloc_consistent 2014-08-08 15:57:30 -07:00
w1
watchdog Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-08-07 08:47:00 -07:00
xen - Remove unused V2 grant table support. 2014-08-07 11:33:15 -07:00
zorro
Kconfig Char / Misc driver patches for 3.17-rc1 2014-08-04 17:32:24 -07:00
Makefile Driver core patches for 3.17-rc1 2014-08-04 18:34:04 -07:00