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qemu-e2k/hw
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Fam Zheng 10f5a72f70 virtio-blk: Fix double completion for werror=stop 
When a request R is absorbed by request M, it is appended to the
"mr_next" queue led by M, and is completed together with the completion
of M, in virtio_blk_rw_complete.

During DMA restart in virtio_blk_dma_restart_bh, requests in s->rq are
parsed and submitted again, possibly with a stale req->mr_next. It could
be a problem if the request merging in virtio_blk_handle_request hasn't
refreshed every mr_next pointer, in which case, virtio_blk_rw_complete
could walk through unexpected requests following the stale pointers.

Fix this by unsetting the pointer in virtio_blk_rw_complete. It is safe
because this req is either completed and freed right away, or it will be
restarted and parsed from scratch out of the vq later.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 		2015-11-17 18:35:57 +08:00
..
9pfs virtio-9p: add savem handlers 2015-11-12 16:40:14 +02:00
acpi hw/acpi/aml-build: remove useless glib version check 2015-11-06 15:42:37 +03:00
alpha Use DEFINE_MACHINE() to register all machines 2015-09-19 16:40:15 +02:00
arm hw/misc: Add support for ADC controller in Xilinx Zynq 7000 2015-11-12 21:30:42 +00:00
audio Remove macros IO_READ_PROTO and IO_WRITE_PROTO 2015-10-19 09:03:53 +02:00
block virtio-blk: Fix double completion for werror=stop 2015-11-17 18:35:57 +08:00
bt bt: fix use of uninitialized variable seqlen 2015-11-06 15:42:38 +03:00
char input: Convert to new qapi union layout 2015-11-02 08:30:28 +01:00
core qdev: provide qdev_reset_all_fn() 2015-11-11 17:21:39 +01:00
cpu icc_bus: drop the unused files 2015-10-02 16:22:02 -03:00
cris cris: Remove ELF_MACHINE from cpu.h 2015-09-25 12:04:43 +02:00
display qxl: Use g_new() & friends where that makes obvious sense 2015-11-06 15:42:38 +03:00
dma hw/dma/pxa2xx: Remove superfluous memset 2015-11-06 15:42:38 +03:00
gpio i.MX: Standardize i.MX GPIO debug 2015-10-27 15:59:46 +00:00
i2c i.MX: Standardize i.MX I2C debug 2015-10-27 15:59:46 +00:00
i386 error: More error_setg() usage 2015-11-11 18:56:26 +01:00
ide atapi: Prioritize unknown cmd error over BCL error 2015-11-13 14:31:42 -05:00
input hw/input/tsc210x: Remove superfluous memset 2015-11-06 15:42:38 +03:00
intc hw/intc/arm_gic: Remove the definition of NUM_CPU 2015-11-10 13:37:33 +00:00
ipack pci: Trivial device model conversions to realize 2015-02-26 12:42:16 +01:00
isa hw/isa/lpc_ich9: inject the SMI on the VCPU that is writing to APM_CNT 2015-10-22 14:39:09 +03:00
lm32 ui/opengl: Reduce build required libraries for opengl 2015-11-03 10:13:42 +01:00
m68k m68k: Remove ELF_MACHINE from cpu.h 2015-09-25 12:04:43 +02:00
mem memory: Convert to new qapi union layout 2015-11-02 08:30:28 +01:00
microblaze mb: Remove ELF_MACHINE from cpu.h 2015-09-25 12:04:43 +02:00
mips hw/mips_malta: Fix KVM PC initialisation 2015-10-30 13:30:14 +00:00
misc hw/misc: Add support for ADC controller in Xilinx Zynq 7000 2015-11-12 21:30:42 +00:00
moxie moxie: Remove ELF_MACHINE from cpu.h 2015-09-25 12:04:43 +02:00
net -----BEGIN PGP SIGNATURE----- 2015-11-12 14:15:32 +00:00
nvram macio-nvram: add to misc category 2015-10-23 12:35:18 +11:00
openrisc * First batch of MAINTAINERS updates 2015-09-25 21:52:30 +01:00
pci fix bad indentation in pcie_cap_slot_write_config() 2015-11-06 15:42:38 +03:00
pci-bridge hw/pci-bridge: format special OFW unit address for PXB host 2015-06-23 22:58:36 +02:00
pci-host uninorth: add to bridge category 2015-10-23 12:35:18 +11:00
pcmcia hw: do not pass NULL to memory_region_init from instance_init 2015-10-09 15:25:56 +02:00
ppc cuda.c: add delay to setting of SR_INT bit 2015-11-12 13:15:55 +11:00
s390x s390: deprecate the non-ccw machine in 2.5 2015-11-11 17:21:39 +01:00
scsi scsi-disk: Account for failed operations 2015-11-12 16:22:47 +01:00
sd sdhci: Split sdhci.h for public and internal device usage 2015-10-29 17:59:27 +00:00
sh4 Use DEFINE_MACHINE() to register all machines 2015-09-19 16:40:15 +02:00
smbios smbios: add smbios 3.0 support 2015-09-07 10:39:28 +01:00
sparc sparc: Remove ELF_MACHINE from cpu.h 2015-09-25 12:04:44 +02:00
sparc64 sparc: Remove ELF_MACHINE from cpu.h 2015-09-25 12:04:44 +02:00
ssi arm: Use g_new() & friends where that makes obvious sense 2015-09-07 10:39:27 +01:00
timer hw/timer/hpet.c: Avoid signed integer overflow which results in bugs on OSX 2015-11-09 15:48:21 +00:00
tpm tpm: avoid clang shifting negative signed warning 2015-11-17 18:35:56 +08:00
tricore tricore: Remove ELF_MACHINE from cpu.h 2015-09-25 12:04:44 +02:00
unicore32 Use DEFINE_MACHINE() to register all machines 2015-09-19 16:40:15 +02:00
usb usb: Use g_new() & friends where that makes obvious sense 2015-11-06 15:42:38 +03:00
vfio vfio: Use g_new() & friends where that makes obvious sense 2015-11-10 12:11:08 -07:00
virtio hw/virtio: Add PCIe capability to virtio devices 2015-11-12 16:23:16 +02:00
watchdog i6300esb: remove muldiv64() 2015-09-25 14:52:17 +02:00
xen xen: fix invalid assertion 2015-11-06 15:42:38 +03:00
xenpv Use DEFINE_MACHINE() to register all machines 2015-09-19 16:40:15 +02:00
xtensa target-xtensa: xtfpga: attach FLASH to system IO 2015-10-21 21:28:33 +03:00
Makefile.objs smbios: move smbios code into a common folder 2015-08-13 14:08:30 +03:00