01 Feb, 2010
1 commit
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desc->affinity doesn't exit in that case. Let's use a macro for
the UP variant of get_irq_server(), it's the easiest way, avoids
evaluating arguments.Signed-off-by: Benjamin Herrenschmidt
29 Jan, 2010
5 commits
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Some of the newer 4xx pci cores need an explicit bit set to send
type 1 transactions instead of just comparing the bus numbers.This patch enables type 1 transations for pcix nodes, thus enabling
devices behind PCI bridges.Signed-off-by: Stef van Os
Signed-off-by: Benjamin Herrenschmidt -
Add missing call to pci_fixup_device(pci_fixup_early, ...) when
building the pci_dev from scratch off the Open Firmware device-treeSigned-off-by: Benjamin Herrenschmidt
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Add missing hookup to existing pci_slot when building the pci_dev from
scratch off the Open Firmware device-treeSigned-off-by: Benjamin Herrenschmidt
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We are missing these when building the pci_dev from scratch off
the Open Firmware device-treeSigned-off-by: Benjamin Herrenschmidt
Acked-by: Jesse Barnes
27 Jan, 2010
1 commit
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Commit 703625118069f9f8960d356676662d3db5a9d116 exposed that f_modown()
should call write_lock_irqsave instead of just write_lock_irq so that
because a caller could have a spinlock held and it would not be good to
renable interrupts.Cc: Eric W. Biederman
Cc: Al Viro
Cc: Alan Cox
Cc: Tavis Ormandy
Cc: stable
Signed-off-by: Greg Kroah-Hartman
Signed-off-by: Linus Torvalds
26 Jan, 2010
17 commits
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* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: Drop EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE flag
ext4: Fix quota accounting error with fallocate
ext4: Handle -EDQUOT error on write -
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] sbc_fitpc2_wdt: fix I/O space access technique.
[WATCHDOG] ixp2000: Fix build failure caused by missing include -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ASoC: fix a memory-leak in wm8903
ALSA: hda - add possibility to choose speakers configuration for 4930g
ALSA: hda - Fix HP T5735 automute
ALSA: hda - Turn on EAPD only if available for Realtek codecs
ALSA: hda - Fix parsing pin node 0x21 on ALC259 -
* 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Fix leak of free lapic date in kvm_arch_vcpu_init()
KVM: x86: Fix probable memory leak of vcpu->arch.mce_banks
KVM: S390: fix potential array overrun in intercept handling
KVM: fix spurious interrupt with irqfd
eventfd - allow atomic read and waitqueue remove
KVM: MMU: bail out pagewalk on kvm_read_guest error
KVM: properly check max PIC pin in irq route setup
KVM: only allow one gsi per fd
KVM: x86: Fix host_mapping_level()
KVM: powerpc: Show timing option only on embedded
KVM: Fix race between APIC TMR and IRR -
* 'linux-next' of git://git.infradead.org/ubi-2.6:
UBI: fix memory leak in update path
UBI: add more checks to chdev open
UBI: initialise update marker -
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (fschmd) Fix a memleak on multiple opens of /dev/watchdog
hwmon: (asus_atk0110) Do not fail if MBIF is missing
hwmon: (amc6821) Double unlock bug
hwmon: (smsc47m1) Fix section mismatch -
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (95 commits)
drm/radeon/kms: preface warning printk with driver name
drm/radeon/kms: drop unnecessary printks.
drm: fix regression in fb blank handling
drm/radeon/kms: make hibernate work on IGPs
drm/vmwgfx: Optimize memory footprint for DMA buffers.
drm/ttm: Allow system memory as a busy placement.
drm/ttm: Fix race condition in ttm_bo_delayed_delete (v3, final)
drm/nv50: prevent switching off SOR when in use for DVI-over-DP
drm/nv50: fail auxch transaction if reply count not what we expect
drm/nouveau: fix failure path if userspace specifies no valid memtypes
drm/nouveau: report LVDS as disconnected if lid closed
drm/radeon/kms: fix legacy get_engine/memory clock
drm/radeon/kms/atom: atom parser fixes
drm/radeon/kms: clean up atombios pll code
drm/radeon/kms: clean up pll struct
drm/radeon/kms/atom: fix crtc lock ordering
drm/radeon: r6xx/r7xx possible security issue, system ram access
drm/radeon/kms: r600/r700 don't test ib if ib initialization fails
drm/radeon/kms: Forbid creation of framebuffer with no valid GEM object
drm/radeon/kms: r600 handle irq vector ring overflow
... -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix IRQ ->set_affinity() methods.
sparc: cpumask_of_node() should handle -1 as a node
sparc64: Update defconfig.
sparc: Add missing SW perf fault events.
sparc64: Fully support both performance counters.
sparc64: Add perf callchain support.
sparc: convert to arch_gettimeoffset()
sparc: leds_resource.end assigned to itself in clock_board_probe()
sparc32: Fix page_to_phys().
sparc: Simplify param.h by simply including
sparc32: Update defconfig.
SPARC: use helpers for rlimits
sparc: copy_from_user() should not return -EFAULT -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits)
virtio_net: Make delayed refill more reliable
sfc: Use fixed-size buffers for MCDI NVRAM requests
sfc: Add workspace for GMAC bug workaround to MCDI MAC_STATS buffer
tcp_probe: avoid modulus operation and wrap fix
qlge: Only free resources if they were allocated
netns xfrm: deal with dst entries in netns
sky2: revert config space change
vlan: fix vlan_skb_recv()
netns xfrm: fix "ip xfrm state|policy count" misreport
sky2: Enable/disable WOL per hardware device
net: Fix IPv6 GSO type checks in Intel ethernet drivers
igb/igbvf: cleanup exception handling in tx_map_adv
MAINTAINERS: Add Intel igbvf maintainer
e1000/e1000e: don't use small hardware rx buffers
fmvj18x_cs: add new id (Panasonic lan & modem card)
be2net: swap only first 2 fields of mcc_wrb
Please add support for Microsoft MN-120 PCMCIA network card
be2net: fix bug in rx page posting
wimax/i2400m: Add support for more i6x50 SKUs
e1000e: enhance frame fragment detection
... -
…/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (25 commits)
OMAP2/3: DMTIMER: Clear pending interrupts when stopping a timer
PM debug: Fix warning when no CONFIG_DEBUG_FS
OMAP3: PM: DSS PM_WKEN to refill DMA
OMAP: timekeeping: time should not stop during suspend
OMAP3: PM: Force write last pad config register into save area
OMAP: omap3_pm_get_suspend_state() error ignored in pwrdm_suspend_get()
OMAP3: PM: Enable wake-up from McBSP2, 3 and 4 modules
OMAP3: PM debug: fix build error when !CONFIG_DEBUG_FS
OMAP3: PM: Removing redundant and potentially dangerous PRCM configration
OMAP3: Fixed ARM aux ctrl register save/restore
OMAP3: CPUidle: Fixed timer resolution
OMAP3: PM: Remove duplicate code blocks
OMAP3: PM: Disable interrupt controller AUTOIDLE before WFI
OMAP3: PM: Enable system control module autoidle
OMAP3: PM: Ack pending interrupts before entering suspend
omap: Enable GPMC clock in gpmc_init
OMAP1 clock: fix for "BUG: spinlock lockup on CPU#0"
OMAP4: clocks: Fix the clksel_rate struct DPLL divs
OMAP4: PRCM: Fix the base address for CHIRONSS reg defines
OMAP: dma_chan[lch_head].flag & OMAP_DMA_ACTIVE tested twice in omap_dma_unlink_lch()
... -
I have seen RX stalls on a machine that experienced a suspected
OOM. After the stall, the RX buffer is empty on the guest side
and there are exactly 16 entries available on the host side. As
the number of entries is less than that required by a maximal
skb, the host cannot proceed.The guest did not have a refill job scheduled.
My diagnosis is that an OOM had occured, with the delayed refill
job scheduled. The job was able to allocate at least one skb, but
not enough to overcome the minimum required by the host to proceed.As the refill job would only reschedule itself if it failed completely
to allocate any skbs, this would lead to an RX stall.The following patch removes this stall possibility by always
rescheduling the refill job until the ring is totally refilled.Testing has shown that the RX stall no longer occurs whereas
previously it would occur within a day.Signed-off-by: Herbert Xu
Acked-by: Rusty Russell
Signed-off-by: David S. Miller -
The low-level MCDI code always uses 32-bit MMIO operations, and
callers must pad input and output buffers to multiples of 4 bytes.
The MCDI NVRAM functions are not doing this. Also, their buffers are
declared as variable-length arrays with no explicit maximum length.Switch to a fixed buffer size based on the chunk size used by the
MTD driver (which is a multiple of 4).Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
Due to a hardware bug in the SFC9000 family, the firmware must
transfer raw GMAC statistics to host memory before aggregating them
into the cooked (speed-independent) MAC statistics. Extend the stats
buffer to support this.The length of the buffer is explicit in the MAC_STATS command, so this
change is backward-compatible on both sides.Signed-off-by: Ben Hutchings
Signed-off-by: David S. Miller -
By rounding up the buffer size to power of 2, several expensive
modulus operations can be avoided. This patch also solves a bug where
the gap need when ring gets full was not being accounted for.Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
Currently qlge tries to release regions even if they were not allocated.
This causes messages like the following in the kernel logTrying to free nonexistent resource
Trying to free nonexistent resource
Trying to free nonexistent resourceThis patch fixes the goto logic in order to not release the resources
if they were not allocated.Signed-off-by: Breno Leitao
Signed-off-by: David S. Miller -
The mdelay function was used between I/O access commands, that causes peak
in CPU usage. Fix it by substitution mdelay to msleep.Expand usage on fitPC2 compatible boards according to DMI identification.
Signed-off-by: Denis Turischev
Signed-off-by: Wim Van Sebroeck
25 Jan, 2010
16 commits
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Remember to free the temporary register-cache.
Signed-off-by: Guennadi Liakhovetski
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown
Cc: stable@kernel.org -
In function kvm_arch_vcpu_init(), if the memory malloc for
vcpu->arch.mce_banks is fail, it does not free the memory
of lapic date. This patch fixed it.Cc: stable@kernel.org
Signed-off-by: Wei Yongjun
Signed-off-by: Marcelo Tosatti -
vcpu->arch.mce_banks is malloc in kvm_arch_vcpu_init(), but
never free in any place, this may cause memory leak. So this
patch fixed to free it in kvm_arch_vcpu_uninit().Cc: stable@kernel.org
Signed-off-by: Wei Yongjun
Signed-off-by: Marcelo Tosatti -
kvm_handle_sie_intercept uses a jump table to get the intercept handler
for a SIE intercept. Static code analysis revealed a potential problem:
the intercept_funcs jump table was defined to contain (0x48 >> 2) entries,
but we only checked for code > 0x48 which would cause an off-by-one
array overflow if code == 0x48.Use the compiler and ARRAY_SIZE to automatically set the limits.
Cc: stable@kernel.org
Signed-off-by: Christian Borntraeger
Signed-off-by: Marcelo Tosatti -
kvm didn't clear irqfd counter on deassign, as a result we could get a
spurious interrupt when irqfd is assigned back. this leads to poor
performance and, in theory, guest crash.Signed-off-by: Michael S. Tsirkin
Signed-off-by: Avi Kivity -
KVM needs a wait to atomically remove themselves from the eventfd ->poll()
wait queue head, in order to handle correctly their IRQfd deassign
operation.This patch introduces such API, plus a way to read an eventfd from its
context.Signed-off-by: Davide Libenzi
Signed-off-by: Avi Kivity -
Exit the guest pagetable walk loop if reading gpte failed. Otherwise its
possible to enter an endless loop processing the previous present pte.Cc: stable@kernel.org
Signed-off-by: Marcelo Tosatti -
Otherwise memory beyond irq_states[16] might be accessed.
Noticed by Juan Quintela.
Cc: stable@kernel.org
Signed-off-by: Marcelo Tosatti
Acked-by: Juan Quintela
Signed-off-by: Avi Kivity -
Looks like repeatedly binding same fd to multiple gsi's with irqfd can
use up a ton of kernel memory for irqfd structures.A simple fix is to allow each fd to only trigger one gsi: triggering a
storm of interrupts in guest is likely useless anyway, and we can do it
by binding a single gsi to many interrupts if we really want to.Cc: stable@kernel.org
Signed-off-by: Michael S. Tsirkin
Acked-by: Acked-by: Gregory Haskins
Signed-off-by: Avi Kivity -
When found a error hva, should not return PAGE_SIZE but the level...
Also clean up the coding style of the following loop.
Cc: stable@kernel.org
Signed-off-by: Sheng Yang
Signed-off-by: Marcelo Tosatti -
Embedded PowerPC KVM has an exit timing implementation to track and evaluate
how much time was spent in which exit path.For Book3S, we don't implement it. So let's not expose it as a config option
either.Signed-off-by: Alexander Graf
Signed-off-by: Avi Kivity -
When we queue an interrupt to the local apic, we set the IRR before the TMR.
The vcpu can pick up the IRR and inject the interrupt before setting the TMR,
and perhaps even EOI it, causing incorrect behaviour.The race is really insignificant since it can only occur on the first
interrupt (usually following interrupts will not change TMR), but it's better
closed than open.Fixed by reordering setting the TMR vs IRR.
Cc: stable@kernel.org
Signed-off-by: Avi Kivity
Signed-off-by: Marcelo Tosatti -
When /dev/watchdog gets opened a second time we return -EBUSY, but
we already have got a kref then, so we end up leaking our data struct.Signed-off-by: Hans de Goede
Signed-off-by: Jean Delvare
Cc: stable@kernel.org -
MBIF (motherboard identification) is only used to print the name of
the board, it's not essential for the driver; do not fail if it's
missing. Based on Juan's patch.Signed-off-by: Luca Tettamanti
Acked-by: Juan RP
Signed-off-by: Jean Delvare -
The mutex gets unlocked after we goto EXIT.
Signed-off-by: Dan Carpenter
Signed-off-by: Jean Delvare -
smsc47m1_restore is called from sm_smsc47m1_exit, which is an __exit
function, so it can't be __init.Signed-off-by: Jeff Mahoney
Signed-off-by: Jean Delvare
