Linus Torvalds [Fri, 30 Nov 2012 18:47:55 +0000 (10:47 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull DRM fixes from Dave Airlie:
"Just driver fixes, nothing major, except maybe the Ironlake rc6
disable:
- intel:
* revert ironlake rc6 - we still have one ilk regression, but this
gets rid of one big one
* turn off cloning
* a directed fix for Apple edp
- radeon: one modesetting fix
- exynos: minor fixes"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
radeon: fix pll/ctrc mapping on dce2 and dce3 hardware
Revert "drm/i915: enable rc6 on ilk again"
drm/i915: do not default to 18 bpp for eDP if missing from VBT
drm/exynos: Fix potential NULL pointer dereference in exynos_drm_encoder.c
drm/exynos: Make exynos4/5_fimd_driver_data static
drm/exynos: fix overlay updating issue
drm/exynos: remove unnecessary code.
drm/exynos: fix linux framebuffer address setting.
drm/i915: disable cloning on sdvo
Linus Torvalds [Fri, 30 Nov 2012 18:46:43 +0000 (10:46 -0800)]
Merge branch 'akpm' (Fixes from Andrew)
Merge misc fixes from Andrew Morton:
"Seven fixes, some of them fingers-crossed :("
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (7 patches)
drivers/rtc/rtc-tps65910.c: fix invalid pointer access on _remove()
mm: soft offline: split thp at the beginning of soft_offline_page()
mm: avoid waking kswapd for THP allocations when compaction is deferred or contended
revert "Revert "mm: remove __GFP_NO_KSWAPD""
mm: vmscan: fix endless loop in kswapd balancing
mm/vmemmap: fix wrong use of virt_to_page
mm: compaction: fix return value of capture_free_page()
Linus Torvalds [Fri, 30 Nov 2012 18:30:34 +0000 (10:30 -0800)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"These are three fixes for the Marvell EBU family and one for the
Samsung s3c platforms. All of them are obvious should still make it
into 3.7."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: Kirkwood: Update PCI-E fixup
Dove: Fix irq_to_pmu()
Dove: Attempt to fix PMU/RTC interrupts
ARM: S3C24XX: Fix potential NULL pointer dereference error
Linus Torvalds [Fri, 30 Nov 2012 18:28:09 +0000 (10:28 -0800)]
Merge tag 'ixp4xx-fixes' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM ixp4xx bug fixes from Arnd Bergmann:
"These were originally prepared by Krzysztof Halasa but not submitted
in time for v3.7 due to some confusion about how ixp4xx patches should
be handled. Jason Cooper thankfully offered to help out sending the
patches upstream through arm-soc now, but given the timing, we could
as well delay them for 3.8."
* tag 'ixp4xx-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
IXP4xx: use __iomem for MMIO
IXP4xx: map CPU config registers within VMALLOC region.
IXP4xx: Always ioremap() Queue Manager MMIO region at boot.
ixp4xx: Declare MODULE_FIRMWARE usage
IXP4xx crypto: MOD_AES{128,192,256} already include key size.
WAN: Remove redundant HDLC info printed by IXP4xx HSS driver.
IXP4xx: Remove time limit for PCI TRDY to enable use of slow devices.
IXP4xx: ixp4xx_crypto driver requires Queue Manager and NPE drivers.
IXP4xx: HW pseudo-random generator is available on IXP45x/46x only.
IXP4xx: Fix off-by-one bug in Goramo MultiLink platform.
IXP4xx: Fix Goramo MultiLink platform compilation.
Linus Torvalds [Fri, 30 Nov 2012 16:53:53 +0000 (08:53 -0800)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull final ARM fix from Russell King:
"One final fix, spotted by Will, to do with what happens when we boot a
SMP kernel on UP."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7586/1: sp804: set cpumask to cpu_possible_mask for clock event device
Kim, Milo [Thu, 29 Nov 2012 21:54:36 +0000 (13:54 -0800)]
drivers/rtc/rtc-tps65910.c: fix invalid pointer access on _remove()
The tps65910_rtc data is registered as the platform driver data in
_probe(= ). Therefore the tps65910_rtc should be used on unregistering
the rtc device. And device pointer should be retrieved from the
platform_device structure.
This patch fixes the below oops:
Unable to handle kernel NULL pointer dereference at virtual address
00000008
Modules linked in: rtc_tps65910(-)
CPU: 0 Not tainted (
3.7.0-rc7-next-20121128-g6b1f974-dirty #7)
PC is at tps65910_rtc_alarm_irq_enable+0x20/0x2c [rtc_tps65910]
(tps65910_rtc_alarm_irq_enable+0x20/0x2c [rtc_tps65910])
(tps65910_rtc_remove+0x18/0x28 [rtc_tps65910])
(platform_drv_remove+0x18/0x1c)
(__device_release_driver+0x70/0xcc)
(driver_detach+0xb4/0xb8)
(bus_remove_driver+0x7c/0xc0)
(sys_delete_module+0x148/0x21c)
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Naoya Horiguchi [Thu, 29 Nov 2012 21:54:34 +0000 (13:54 -0800)]
mm: soft offline: split thp at the beginning of soft_offline_page()
When we try to soft-offline a thp tail page, put_page() is called on the
tail page unthinkingly and VM_BUG_ON is triggered in put_compound_page().
This patch splits thp before going into the main body of soft-offlining.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Andi Kleen <andi.kleen@intel.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mel Gorman [Thu, 29 Nov 2012 21:54:30 +0000 (13:54 -0800)]
mm: avoid waking kswapd for THP allocations when compaction is deferred or contended
With "mm: vmscan: scale number of pages reclaimed by reclaim/compaction
based on failures" reverted, Zdenek Kabelac reported the following
Hmm, so it's just took longer to hit the problem and observe
kswapd0 spinning on my CPU again - it's not as endless like before -
but still it easily eats minutes - it helps to turn off Firefox
or TB (memory hungry apps) so kswapd0 stops soon - and restart
those apps again. (And I still have like >1GB of cached memory)
kswapd0 R running task 0 30 2 0x00000000
Call Trace:
preempt_schedule+0x42/0x60
_raw_spin_unlock+0x55/0x60
put_super+0x31/0x40
drop_super+0x22/0x30
prune_super+0x149/0x1b0
shrink_slab+0xba/0x510
The sysrq+m indicates the system has no swap so it'll never reclaim
anonymous pages as part of reclaim/compaction. That is one part of the
problem but not the root cause as file-backed pages could also be
reclaimed.
The likely underlying problem is that kswapd is woken up or kept awake
for each THP allocation request in the page allocator slow path.
If compaction fails for the requesting process then compaction will be
deferred for a time and direct reclaim is avoided. However, if there
are a storm of THP requests that are simply rejected, it will still be
the the case that kswapd is awake for a prolonged period of time as
pgdat->kswapd_max_order is updated each time. This is noticed by the
main kswapd() loop and it will not call kswapd_try_to_sleep(). Instead
it will loopp, shrinking a small number of pages and calling
shrink_slab() on each iteration.
This patch defers when kswapd gets woken up for THP allocations. For
!THP allocations, kswapd is always woken up. For THP allocations,
kswapd is woken up iff the process is willing to enter into direct
reclaim/compaction.
[akpm@linux-foundation.org: fix typo in comment]
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Zdenek Kabelac <zkabelac@redhat.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: Glauber Costa <glommer@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Thu, 29 Nov 2012 21:54:27 +0000 (13:54 -0800)]
revert "Revert "mm: remove __GFP_NO_KSWAPD""
It apepars that this patch was innocent, and we hope that "mm: avoid
waking kswapd for THP allocations when compaction is deferred or
contended" will fix the final kswapd-spinning cause.
Cc: Zdenek Kabelac <zkabelac@redhat.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Johannes Weiner [Thu, 29 Nov 2012 21:54:23 +0000 (13:54 -0800)]
mm: vmscan: fix endless loop in kswapd balancing
Kswapd does not in all places have the same criteria for a balanced
zone. Zones are only being reclaimed when their high watermark is
breached, but compaction checks loop over the zonelist again when the
zone does not meet the low watermark plus two times the size of the
allocation. This gets kswapd stuck in an endless loop over a small
zone, like the DMA zone, where the high watermark is smaller than the
compaction requirement.
Add a function, zone_balanced(), that checks the watermark, and, for
higher order allocations, if compaction has enough free memory. Then
use it uniformly to check for balanced zones.
This makes sure that when the compaction watermark is not met, at least
reclaim happens and progress is made - or the zone is declared
unreclaimable at some point and skipped entirely.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: George Spelvin <linux@horizon.com>
Reported-by: Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Reported-by: Tomas Racek <tracek@redhat.com>
Tested-by: Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jianguo Wu [Thu, 29 Nov 2012 21:54:21 +0000 (13:54 -0800)]
mm/vmemmap: fix wrong use of virt_to_page
I enable CONFIG_DEBUG_VIRTUAL and CONFIG_SPARSEMEM_VMEMMAP, when doing
memory hotremove, there is a kernel BUG at arch/x86/mm/physaddr.c:20.
It is caused by free_section_usemap()->virt_to_page(), virt_to_page() is
only used for kernel direct mapping address, but sparse-vmemmap uses
vmemmap address, so it is going wrong here.
------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:20!
invalid opcode: 0000 [#1] SMP
Modules linked in: acpihp_drv acpihp_slot edd cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf fuse vfat fat loop dm_mod coretemp kvm crc32c_intel ipv6 ixgbe igb iTCO_wdt i7core_edac edac_core pcspkr iTCO_vendor_support ioatdma microcode joydev sr_mod i2c_i801 dca lpc_ich mfd_core mdio tpm_tis i2c_core hid_generic tpm cdrom sg tpm_bios rtc_cmos button ext3 jbd mbcache usbhid hid uhci_hcd ehci_hcd usbcore usb_common sd_mod crc_t10dif processor thermal_sys hwmon scsi_dh_alua scsi_dh_hp_sw scsi_dh_rdac scsi_dh_emc scsi_dh ata_generic ata_piix libata megaraid_sas scsi_mod
CPU 39
Pid: 6454, comm: sh Not tainted 3.7.0-rc1-acpihp-final+ #45 QCI QSSC-S4R/QSSC-S4R
RIP: 0010:[<
ffffffff8103c908>] [<
ffffffff8103c908>] __phys_addr+0x88/0x90
RSP: 0018:
ffff8804440d7c08 EFLAGS:
00010006
RAX:
0000000000000006 RBX:
ffffea0012000000 RCX:
000000000000002c
...
Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Reviewd-by: Wen Congyang <wency@cn.fujitsu.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mel Gorman [Thu, 29 Nov 2012 21:54:20 +0000 (13:54 -0800)]
mm: compaction: fix return value of capture_free_page()
Commit
ef6c5be658f6 ("fix incorrect NR_FREE_PAGES accounting (appears
like memory leak)") fixes a NR_FREE_PAGE accounting leak but missed the
return value which was also missed by this reviewer until today.
That return value is used by compaction when adding pages to a list of
isolated free pages and without this follow-up fix, there is a risk of
free list corruption.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Arnd Bergmann [Thu, 29 Nov 2012 14:07:27 +0000 (15:07 +0100)]
Merge branch 'v3.7-samsung-fixes-4' of git://git./linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim <kgene.kim@samsung.com>:
Samsung fixes for v3.7
* 'v3.7-samsung-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: S3C24XX: Fix potential NULL pointer dereference error
This would have been ok to delay to 3.8 according to Kukjin, but since
it's an obvious bug fix and a potential NULL pointer dereference, it
seem appropriate for a late 3.7 submission.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Linus Torvalds [Thu, 29 Nov 2012 05:54:07 +0000 (21:54 -0800)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"Some more fixes trickled in over the past few days:
1) PIM device names can overflow the IFNAMSIZ buffer unless we
properly limit the allowed indexes, fix from Eric Dumazet.
2) Under heavy load we can OOPS in icmp reply processing due to an
unchecked inet_putpeer() call. Fix from Neal Cardwell.
3) SCTP round trip calculations need to use 64-bit math to avoid
overflows, fix from Schoch Christian.
4) Fix a memory leak and an error return flub in SCTP and IRDA
triggerable by userspace. Fix from Tommi Rantala and found by the
syscall fuzzer (trinity).
5) MLX4 driver gives bogus size to memcpy() call, fix from Amir
Vadai.
6) Fix length calculation in VHOST descriptor translation, from
Michael S Tsirkin.
7) Ambassador ATM driver loops forever while loading firmware, fix
from Dan Carpenter.
8) Over MTU packets in openvswitch warn about wrong device, fix from
Jesse Gross.
9) Netfilter IPSET's netlink code can overrun a string buffer because
it's not properly limited to IFNAMSIZ. Fix from Florian Westphal.
10) PCAN USB driver sets wrong timestamp in SKB, from Oliver Hartkopp.
11) Make sure the RX ifindex always has a valid value in the CAN BCM
driver, even if we haven't received a frame yet. Fix also from
Oliver Hartkopp."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
team: fix hw_features setup
atm: forever loop loading ambassador firmware
vhost: fix length for cross region descriptor
irda: irttp: fix memory leak in irttp_open_tsap() error path
net: qmi_wwan: add Huawei E173
net/mlx4_en: Can set maxrate only for TC0
sctp: Error in calculation of RTTvar
sctp: fix -ENOMEM result with invalid user space pointer in sendto() syscall
sctp: fix memory leak in sctp_datamsg_from_user() when copy from user space fails
net: ipmr: limit MRT_TABLE identifiers
ipv4: avoid passing NULL to inet_putpeer() in icmpv4_xrlim_allow()
can: bcm: initialize ifindex for timeouts without previous frame reception
can: peak_usb: fix hwtstamp assignment
netfilter: ipset: fix netiface set name overflow
openvswitch: Store flow key len if ARP opcode is not request or reply.
openvswitch: Print device when warning about over MTU packets.
David S. Miller [Wed, 28 Nov 2012 23:00:47 +0000 (18:00 -0500)]
Merge branch 'fixes' of git://git./linux/kernel/git/jesse/openvswitch
Two small openswitch fixes from Jesse Gross.
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Wed, 28 Nov 2012 06:13:10 +0000 (06:13 +0000)]
team: fix hw_features setup
Do this in the same way bonding does. This fixed setup resolves performance
issues when using some cards with certain offloading.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Tue, 27 Nov 2012 07:29:35 +0000 (07:29 +0000)]
atm: forever loop loading ambassador firmware
There was a forever loop introduced here when we converted this to
request_firmware() back in 2008.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 28 Nov 2012 16:29:43 +0000 (11:29 -0500)]
Merge branch 'master' of git://1984.lsi.us.es/nf
An interface name overflow fix in netfilter via Pablo Neira Ayuso.
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael S. Tsirkin [Mon, 26 Nov 2012 05:57:27 +0000 (05:57 +0000)]
vhost: fix length for cross region descriptor
If a single descriptor crosses a region, the
second chunk length should be decremented
by size translated so far, instead it includes
the full descriptor length.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tommi Rantala [Mon, 26 Nov 2012 04:16:44 +0000 (04:16 +0000)]
irda: irttp: fix memory leak in irttp_open_tsap() error path
Cleanup the memory we allocated earlier in irttp_open_tsap() when we hit
this error path. The leak goes back to at least
1da177e4
("Linux-2.6.12-rc2").
Discovered with Trinity (the syscall fuzzer).
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Sun, 25 Nov 2012 06:03:59 +0000 (06:03 +0000)]
net: qmi_wwan: add Huawei E173
The Huawei E173 is a QMI/wwan device which normally appear
as 12d1:1436 in Linux. The descriptors displayed in that
mode will be picked up by cdc_ether. But the modem has
another mode with a different device ID and a slightly
different set of descriptors. This is the mode used by
Windows like this:
3Modem: USB\VID_12D1&PID_140C&MI_00\6&
3A1D2012&0&0000
Networkcard: USB\VID_12D1&PID_140C&MI_01\6&
3A1D2012&0&0001
Appli.Inter: USB\VID_12D1&PID_140C&MI_02\6&
3A1D2012&0&0002
PC UI Inter: USB\VID_12D1&PID_140C&MI_03\6&
3A1D2012&0&0003
Reported-by: Thomas Schäfer <tschaefer@t-online.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amir Vadai [Wed, 28 Nov 2012 11:43:15 +0000 (13:43 +0200)]
net/mlx4_en: Can set maxrate only for TC0
Had a typo in memcpy.
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Schoch Christian [Wed, 28 Nov 2012 05:18:29 +0000 (05:18 +0000)]
sctp: Error in calculation of RTTvar
The calculation of RTTVAR involves the subtraction of two unsigned
numbers which
may causes rollover and results in very high values of RTTVAR when RTT > SRTT.
With this patch it is possible to set RTOmin = 1 to get the minimum of RTO at
4 times the clock granularity.
Change Notes:
v2)
*Replaced abs() by abs64() and long by __s64, changed patch
description.
Signed-off-by: Christian Schoch <e0326715@student.tuwien.ac.at>
CC: Vlad Yasevich <vyasevich@gmail.com>
CC: Sridhar Samudrala <sri@us.ibm.com>
CC: Neil Horman <nhorman@tuxdriver.com>
CC: linux-sctp@vger.kernel.org
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tommi Rantala [Thu, 22 Nov 2012 03:23:16 +0000 (03:23 +0000)]
sctp: fix -ENOMEM result with invalid user space pointer in sendto() syscall
Consider the following program, that sets the second argument to the
sendto() syscall incorrectly:
#include <string.h>
#include <arpa/inet.h>
#include <sys/socket.h>
int main(void)
{
int fd;
struct sockaddr_in sa;
fd = socket(AF_INET, SOCK_STREAM, 132 /*IPPROTO_SCTP*/);
if (fd < 0)
return 1;
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_addr.s_addr = inet_addr("127.0.0.1");
sa.sin_port = htons(11111);
sendto(fd, NULL, 1, 0, (struct sockaddr *)&sa, sizeof(sa));
return 0;
}
We get -ENOMEM:
$ strace -e sendto ./demo
sendto(3, NULL, 1, 0, {sa_family=AF_INET, sin_port=htons(11111), sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ENOMEM (Cannot allocate memory)
Propagate the error code from sctp_user_addto_chunk(), so that we will
tell user space what actually went wrong:
$ strace -e sendto ./demo
sendto(3, NULL, 1, 0, {sa_family=AF_INET, sin_port=htons(11111), sin_addr=inet_addr("127.0.0.1")}, 16) = -1 EFAULT (Bad address)
Noticed while running Trinity (the syscall fuzzer).
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tommi Rantala [Tue, 27 Nov 2012 04:01:46 +0000 (04:01 +0000)]
sctp: fix memory leak in sctp_datamsg_from_user() when copy from user space fails
Trinity (the syscall fuzzer) discovered a memory leak in SCTP,
reproducible e.g. with the sendto() syscall by passing invalid
user space pointer in the second argument:
#include <string.h>
#include <arpa/inet.h>
#include <sys/socket.h>
int main(void)
{
int fd;
struct sockaddr_in sa;
fd = socket(AF_INET, SOCK_STREAM, 132 /*IPPROTO_SCTP*/);
if (fd < 0)
return 1;
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_addr.s_addr = inet_addr("127.0.0.1");
sa.sin_port = htons(11111);
sendto(fd, NULL, 1, 0, (struct sockaddr *)&sa, sizeof(sa));
return 0;
}
As far as I can tell, the leak has been around since ~2003.
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mikulas Patocka [Wed, 28 Nov 2012 03:59:52 +0000 (22:59 -0500)]
percpu-rwsem: use synchronize_sched_expedited
Use synchronize_sched_expedited() instead of synchronize_sched()
to improve mount speed.
This patch improves mount time from 0.500s to 0.013s for Jeff's
test-case.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Will Deacon [Fri, 23 Nov 2012 17:55:30 +0000 (18:55 +0100)]
ARM: 7586/1: sp804: set cpumask to cpu_possible_mask for clock event device
The SP804 driver statically initialises the cpumask of the clock event
device to be cpu_all_mask, which is derived from the compile-time
constant NR_CPUS. This breaks SMP_ON_UP systems where the interrupt
controller handling the sp804 doesn't have the irq_set_affinity callback
on the irq_chip, because the common timer code fails to identify the
device as cpu-local and ends up treating it as a broadcast device
instead.
This patch fixes the problem by using cpu_possible_mask at runtime,
which will correctly represent the possible CPUs when SMP_ON_UP is being
used.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dave Airlie [Wed, 28 Nov 2012 06:51:10 +0000 (16:51 +1000)]
Merge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux
Just a single pll/crtc regression fix.
* 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux:
radeon: fix pll/ctrc mapping on dce2 and dce3 hardware
Jerome Glisse [Tue, 27 Nov 2012 21:12:29 +0000 (16:12 -0500)]
radeon: fix pll/ctrc mapping on dce2 and dce3 hardware
This fix black screen on resume issue that some people are
experiencing. There is a bug in the atombios code regarding
pll/crtc mapping. The atombios code reverse the logic for
the pll and crtc mapping.
agd5f: drop unnecessary crtc id check, cc stable in case
we miss 3.7.
This fixes the root cause that was worked around by commits:
drm/radeon: allocate PPLLs from low to high
drm/radeon/dce3: switch back to old pll allocation order for discrete
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Linus Torvalds [Tue, 27 Nov 2012 20:27:37 +0000 (12:27 -0800)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"For some media fixes:
- dvb_usb_v2: some fixes at the core
- Some fixes on some embedded drivers: soc_camera, adv7604, omap3isp,
exynos/s5p
- Several Exynos4/5 camera fixes
- a fix at stv0900 driver
- a few USB ID additions to detect more variants of rtl28xxu-based
sticks"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (25 commits)
[media] rtl28xxu: 0ccd:00d7 TerraTec Cinergy T Stick+
[media] rtl28xxu: 1d19:1102 Dexatek DK mini DVB-T Dongle
[media] mt9v022: fix the V4L2_CID_EXPOSURE control
[media] mx2_camera: fix missing unlock on error in mx2_start_streaming()
[media] media: omap1_camera: fix const cropping related warnings
[media] media: mx1_camera: use the default .set_crop() implementation
[media] media: mx2_camera: fix const cropping related warnings
[media] media: mx3_camera: fix const cropping related warnings
[media] media: pxa_camera: fix const cropping related warnings
[media] media: sh_mobile_ceu_camera: fix const cropping related warnings
[media] media: sh_vou: fix const cropping related warnings
[media] adv7604: restart STDI once if format is not found
[media] adv7604: use presets where possible
[media] adv7604: Replace prim_mode by mode
[media] adv7604: cleanup references
[media] dvb_usb_v2: switch interruptible mutex to normal
[media] dvb_usb_v2: fix pid_filter callback error logging
[media] exynos-gsc: change driver compatible string
[media] omap3isp: Fix warning caused by bad subdev events operations prototypes
[media] omap3isp: video: Fix warning caused by bad vidioc_s_crop prototype
...
Dave Airlie [Tue, 27 Nov 2012 04:41:37 +0000 (14:41 +1000)]
Merge branch 'exynos-drm-fixes' of git://git./linux/kernel/git/daeinki/drm-exynos
Inki writes:
This pull request fixes minor issues and includes code cleanup.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: Fix potential NULL pointer dereference in exynos_drm_encoder.c
drm/exynos: Make exynos4/5_fimd_driver_data static
drm/exynos: fix overlay updating issue
drm/exynos: remove unnecessary code.
drm/exynos: fix linux framebuffer address setting.
Dave Airlie [Tue, 27 Nov 2012 04:40:13 +0000 (14:40 +1000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel
Daniel writes:
- Unbreak mbp retina, this time with a much more fine-grained approach
(since the previous "completely ignore edp vbt bpp value" regressed some
machines even after fixing a bug in our dp bw code).
- Disable cloning on sdvo. It just doesn't work (yeah took us a while to
figure out), leading to jittery outputs in the best case.
- Revert rc6 for ilk again. It seems to help a few of the gpu hang
reporters at least, and it's definitely the best we've got.
Head-against-the-wall-banging is still ongoing for what really breaks
(and how we can reproduce the non-rc6 hangs and how to reproduce on
gen4).
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
Revert "drm/i915: enable rc6 on ilk again"
drm/i915: do not default to 18 bpp for eDP if missing from VBT
drm/i915: disable cloning on sdvo
Linus Torvalds [Tue, 27 Nov 2012 02:33:33 +0000 (18:33 -0800)]
Merge branch 'akpm' (Fixes from Andrew)
Merge misc fixes from Andrew Morton:
"8 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (8 patches)
futex: avoid wake_futex() for a PI futex_q
watchdog: using u64 in get_sample_period()
writeback: put unused inodes to LRU after writeback completion
mm: vmscan: check for fatal signals iff the process was throttled
Revert "mm: remove __GFP_NO_KSWAPD"
proc: check vma->vm_file before dereferencing
UAPI: strip the _UAPI prefix from header guards during header installation
include/linux/bug.h: fix sparse warning related to BUILD_BUG_ON_INVALID
Linus Torvalds [Tue, 27 Nov 2012 01:46:36 +0000 (17:46 -0800)]
Merge tag 'tty-3.7-rc7' of git://git./linux/kernel/git/gregkh/tty
Pull TTY fix from Greg Kroah-Hartman:
"Here is a single fix for a reported regression in 3.7-rc5 for the tty
layer. This fix has been in the linux-next tree and solves the
reported problem.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty vt: Fix a regression in command line edition
Linus Torvalds [Tue, 27 Nov 2012 01:45:16 +0000 (17:45 -0800)]
Merge tag 'mfd-for-linus-3.7' of git://git./linux/kernel/git/sameo/mfd-2.6
Pull MFD fixes from Samuel Ortiz:
- A twl fix preventing a buffer overflow.
- A wm5102 register patch fix.
- A wm5110 error misreport fix.
- Arizona fixes: Use the right array size when adding subdevices,
correctly report underclocked events, synchronize register cache
after reset.
- A twl4030 fix for preventing the system to hang from an interrupt
flood.
* tag 'mfd-for-linus-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: twl4030: Fix chained irq handling on resume from suspend
mfd: arizona: Sync regcache after reset
mfd: arizona: Correctly report when AIF2/AIF1 is underclocked
mfd: arizona: Use correct array for ARRAY_SIZE in mfd_add_devices call
mfd: wm5110: Disable control interface error report for WM5110 rev B
mfd: wm5102: Update register patch for latest evaluation
mfd: twl-core: Fix chip ID for the twl6030-pwm module
Linus Torvalds [Tue, 27 Nov 2012 01:43:10 +0000 (17:43 -0800)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
"Not much here, just a couple minor/cosmetic fixes and a patch for the
decompressor which fixes problems with modern GCC and CPUs."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7583/1: decompressor: Enable unaligned memory access for v6 and above
ARM: 7572/1: proc-v6.S: fix comment
ARM: 7570/1: quiet down the non make -s output
Linus Torvalds [Tue, 27 Nov 2012 01:42:07 +0000 (17:42 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs
Pull ext3 regression fix from Jan Kara:
"Fix an ext3 regression introduced during 3.7 merge window. It leads
to deadlock if you stress the filesystem in the right way (luckily
only if blocksize < pagesize)."
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
jbd: Fix lock ordering bug in journal_unmap_buffer()
Darren Hart [Tue, 27 Nov 2012 00:29:56 +0000 (16:29 -0800)]
futex: avoid wake_futex() for a PI futex_q
Dave Jones reported a bug with futex_lock_pi() that his trinity test
exposed. Sometime between queue_me() and taking the q.lock_ptr, the
lock_ptr became NULL, resulting in a crash.
While futex_wake() is careful to not call wake_futex() on futex_q's with
a pi_state or an rt_waiter (which are either waiting for a
futex_unlock_pi() or a PI futex_requeue()), futex_wake_op() and
futex_requeue() do not perform the same test.
Update futex_wake_op() and futex_requeue() to test for q.pi_state and
q.rt_waiter and abort with -EINVAL if detected. To ensure any future
breakage is caught, add a WARN() to wake_futex() if the same condition
is true.
This fix has seen 3 hours of testing with "trinity -c futex" on an
x86_64 VM with 4 CPUS.
[akpm@linux-foundation.org: tidy up the WARN()]
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Reported-by: Dave Jones <davej@redat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: John Kacur <jkacur@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chuansheng Liu [Tue, 27 Nov 2012 00:29:54 +0000 (16:29 -0800)]
watchdog: using u64 in get_sample_period()
In get_sample_period(), unsigned long is not enough:
watchdog_thresh * 2 * (NSEC_PER_SEC / 5)
case1:
watchdog_thresh is 10 by default, the sample value will be: 0xEE6B2800
case2:
set watchdog_thresh is 20, the sample value will be: 0x1 DCD6 5000
In case2, we need use u64 to express the sample period. Otherwise,
changing the threshold thru proc often can not be successful.
Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Acked-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Tue, 27 Nov 2012 00:29:51 +0000 (16:29 -0800)]
writeback: put unused inodes to LRU after writeback completion
Commit
169ebd90131b ("writeback: Avoid iput() from flusher thread")
removed iget-iput pair from inode writeback. As a side effect, inodes
that are dirty during iput_final() call won't be ever added to inode LRU
(iput_final() doesn't add dirty inodes to LRU and later when the inode
is cleaned there's noone to add the inode there). Thus inodes are
effectively unreclaimable until someone looks them up again.
The practical effect of this bug is limited by the fact that inodes are
pinned by a dentry for long enough that the inode gets cleaned. But
still the bug can have nasty consequences leading up to OOM conditions
under certain circumstances. Following can easily reproduce the
problem:
for (( i = 0; i < 1000; i++ )); do
mkdir $i
for (( j = 0; j < 1000; j++ )); do
touch $i/$j
echo 2 > /proc/sys/vm/drop_caches
done
done
then one needs to run 'sync; ls -lR' to make inodes reclaimable again.
We fix the issue by inserting unused clean inodes into the LRU after
writeback finishes in inode_sync_complete().
Signed-off-by: Jan Kara <jack@suse.cz>
Reported-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: <stable@vger.kernel.org> [3.5+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mel Gorman [Tue, 27 Nov 2012 00:29:48 +0000 (16:29 -0800)]
mm: vmscan: check for fatal signals iff the process was throttled
Commit
5515061d22f0 ("mm: throttle direct reclaimers if PF_MEMALLOC
reserves are low and swap is backed by network storage") introduced a
check for fatal signals after a process gets throttled for network
storage. The intention was that if a process was throttled and got
killed that it should not trigger the OOM killer. As pointed out by
Minchan Kim and David Rientjes, this check is in the wrong place and too
broad. If a system is in am OOM situation and a process is exiting, it
can loop in __alloc_pages_slowpath() and calling direct reclaim in a
loop. As the fatal signal is pending it returns 1 as if it is making
forward progress and can effectively deadlock.
This patch moves the fatal_signal_pending() check after throttling to
throttle_direct_reclaim() where it belongs. If the process is killed
while throttled, it will return immediately without direct reclaim
except now it will have TIF_MEMDIE set and will use the PFMEMALLOC
reserves.
Minchan pointed out that it may be better to direct reclaim before
returning to avoid using the reserves because there may be pages that
can easily reclaim that would avoid using the reserves. However, we do
no such targetted reclaim and there is no guarantee that suitable pages
are available. As it is expected that this throttling happens when
swap-over-NFS is used there is a possibility that the process will
instead swap which may allocate network buffers from the PFMEMALLOC
reserves. Hence, in the swap-over-nfs case where a process can be
throtted and be killed it can use the reserves to exit or it can
potentially use reserves to swap a few pages and then exit. This patch
takes the option of using the reserves if necessary to allow the process
exit quickly.
If this patch passes review it should be considered a -stable candidate
for 3.6.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Sonny Rao <sonnyrao@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mel Gorman [Tue, 27 Nov 2012 00:29:45 +0000 (16:29 -0800)]
Revert "mm: remove __GFP_NO_KSWAPD"
With "mm: vmscan: scale number of pages reclaimed by reclaim/compaction
based on failures" reverted, Zdenek Kabelac reported the following
Hmm, so it's just took longer to hit the problem and observe
kswapd0 spinning on my CPU again - it's not as endless like before -
but still it easily eats minutes - it helps to turn off Firefox
or TB (memory hungry apps) so kswapd0 stops soon - and restart
those apps again. (And I still have like >1GB of cached memory)
kswapd0 R running task 0 30 2 0x00000000
Call Trace:
preempt_schedule+0x42/0x60
_raw_spin_unlock+0x55/0x60
put_super+0x31/0x40
drop_super+0x22/0x30
prune_super+0x149/0x1b0
shrink_slab+0xba/0x510
The sysrq+m indicates the system has no swap so it'll never reclaim
anonymous pages as part of reclaim/compaction. That is one part of the
problem but not the root cause as file-backed pages could also be
reclaimed.
The likely underlying problem is that kswapd is woken up or kept awake
for each THP allocation request in the page allocator slow path.
If compaction fails for the requesting process then compaction will be
deferred for a time and direct reclaim is avoided. However, if there
are a storm of THP requests that are simply rejected, it will still be
the the case that kswapd is awake for a prolonged period of time as
pgdat->kswapd_max_order is updated each time. This is noticed by the
main kswapd() loop and it will not call kswapd_try_to_sleep(). Instead
it will loopp, shrinking a small number of pages and calling
shrink_slab() on each iteration.
The temptation is to supply a patch that checks if kswapd was woken for
THP and if so ignore pgdat->kswapd_max_order but it'll be a hack and not
backed up by proper testing. As 3.7 is very close to release and this
is not a bug we should release with, a safer path is to revert "mm:
remove __GFP_NO_KSWAPD" for now and revisit it with the view to ironing
out the balance_pgdat() logic in general.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Zdenek Kabelac <zkabelac@redhat.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stanislav Kinsbursky [Tue, 27 Nov 2012 00:29:42 +0000 (16:29 -0800)]
proc: check vma->vm_file before dereferencing
Commit
7b540d0646ce ("proc_map_files_readdir(): don't bother with
grabbing files") switched proc_map_files_readdir() to use @f_mode
directly instead of grabbing @file reference, but same time the test for
@vm_file presence was lost leading to nil dereference. The patch brings
the test back.
The all proc_map_files feature is CONFIG_CHECKPOINT_RESTORE wrapped
(which is set to 'n' by default) so the bug doesn't affect regular
kernels.
The regression is 3.7-rc1 only as far as I can tell.
[gorcunov@openvz.org: provided changelog]
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Tue, 27 Nov 2012 00:29:39 +0000 (16:29 -0800)]
UAPI: strip the _UAPI prefix from header guards during header installation
Strip the _UAPI prefix from header guards during header installation so
that any userspace dependencies aren't affected. glibc, for example,
checks for linux/types.h, linux/kernel.h, linux/compiler.h and
linux/list.h by their guards - though the last two aren't actually
exported.
libtool: compile: gcc -std=gnu99 -DHAVE_CONFIG_H -I. -Wall -Werror -Wformat -Wformat-security -D_FORTIFY_SOURCE=2 -fno-delete-null-pointer-checks -fstack-protector -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=atom -fasynchronous-unwind-tables -c child.c -fPIC -DPIC -o .libs/child.o
In file included from cli.c:20:0:
common.h:152:8: error: redefinition of 'struct sysinfo'
In file included from /usr/include/linux/kernel.h:4:0,
from /usr/include/linux/sysctl.h:25,
from /usr/include/sys/sysctl.h:43,
from common.h:50,
from cli.c:20:
/usr/include/linux/sysinfo.h:7:8: note: originally defined here
Reported-by: Tomasz Torcz <tomek@pipebreaker.pl>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tushar Behera [Tue, 27 Nov 2012 00:29:38 +0000 (16:29 -0800)]
include/linux/bug.h: fix sparse warning related to BUILD_BUG_ON_INVALID
Commit
baf05aa9271b ("bug: introduce BUILD_BUG_ON_INVALID() macro")
introduces this macro only when _CHECKER_ is not defined. Define a
silent macro in the else condition to fix following sparse warning:
mm/filemap.c:395:9: error: undefined identifier 'BUILD_BUG_ON_INVALID'
mm/filemap.c:396:9: error: undefined identifier 'BUILD_BUG_ON_INVALID'
mm/filemap.c:397:9: error: undefined identifier 'BUILD_BUG_ON_INVALID'
include/linux/mm.h:419:9: error: undefined identifier 'BUILD_BUG_ON_INVALID'
include/linux/mm.h:419:9: error: not a function <noident>
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Dumazet [Sun, 25 Nov 2012 09:44:29 +0000 (09:44 +0000)]
net: ipmr: limit MRT_TABLE identifiers
Name of pimreg devices are built from following format :
char name[IFNAMSIZ]; // IFNAMSIZ == 16
sprintf(name, "pimreg%u", mrt->id);
We must therefore limit mrt->id to 9 decimal digits
or risk a buffer overflow and a crash.
Restrict table identifiers in [0 ...
999999999] interval.
Reported-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Neal Cardwell [Sat, 24 Nov 2012 18:54:37 +0000 (18:54 +0000)]
ipv4: avoid passing NULL to inet_putpeer() in icmpv4_xrlim_allow()
inet_getpeer_v4() can return NULL under OOM conditions, and while
inet_peer_xrlim_allow() is OK with a NULL peer, inet_putpeer() will
crash.
This code path now uses the same idiom as the others from:
1d861aa4b3fb08822055345f480850205ffe6170 ("inet: Minimize use of
cached route inetpeer.").
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Oliver Hartkopp [Mon, 26 Nov 2012 21:24:23 +0000 (22:24 +0100)]
can: bcm: initialize ifindex for timeouts without previous frame reception
Set in the rx_ifindex to pass the correct interface index in the case of a
message timeout detection. Usually the rx_ifindex value is set at receive
time. But when no CAN frame has been received the RX_TIMEOUT notification
did not contain a valid value.
Cc: linux-stable <stable@vger.kernel.org>
Reported-by: Andre Naujoks <nautsch2@googlemail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Oliver Hartkopp [Wed, 21 Nov 2012 21:43:59 +0000 (22:43 +0100)]
can: peak_usb: fix hwtstamp assignment
The skb->tstamp is set to the hardware timestamp when available in the USB
urb message. This leads to user visible timestamps which contain the 'uptime'
of the USB adapter - and not the usual system generated timestamp.
Fix this wrong assignment by applying the available hardware timestamp to the
skb_shared_hwtstamps data structure - which is intended for this purpose.
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Olof Johansson [Mon, 26 Nov 2012 06:02:47 +0000 (22:02 -0800)]
Merge tag 'orion_fixes_for_3.7' of git://git.infradead.org/users/jcooper/linux into fixes
From Jason Cooper:
orion fixes for v3.7
- dove irq fix
- kirkwood pcie fix
* tag 'orion_fixes_for_3.7' of git://git.infradead.org/users/jcooper/linux:
ARM: Kirkwood: Update PCI-E fixup
Dove: Fix irq_to_pmu()
Dove: Attempt to fix PMU/RTC interrupts
Linus Torvalds [Mon, 26 Nov 2012 01:59:19 +0000 (17:59 -0800)]
Linux 3.7-rc7
Linus Torvalds [Mon, 26 Nov 2012 01:57:01 +0000 (17:57 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
Pull powerpc EEH bugfixes from Benjamin Herrenschmidt.
Two one-liner fixes for the new EEH code.
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/eeh: Do not invalidate PE properly
powerpc/pseries: Fix oops with MSIs when missing EEH PEs
Linus Torvalds [Mon, 26 Nov 2012 01:55:04 +0000 (17:55 -0800)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
"Three issues fixed accross the field:
- Some functions that were recently outlined as part of a preemption
fix were causing problems with function tracing.
- The recently merged in-kernel MPI library uses very outdated
headers that contain MIPS-specific code which won't build on with
gcc 4.4 or newer.
- The MIPS non-NUMA memory initialization was making only a very
half-baked attempt at merging adjacent memory ranges. This kept
the code simple enough but is now causing issues with kexec."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MPI: Fix compilation on MIPS with GCC 4.4 and newer
MIPS: Fix crash that occurs when function tracing is enabled
MIPS: Merge overlapping bootmem ranges
Gavin Shan [Thu, 22 Nov 2012 21:58:26 +0000 (21:58 +0000)]
powerpc/eeh: Do not invalidate PE properly
While the EEH does recovery on the specific PE that has PCI errors,
the PCI devices belonging to the PE will be removed and the PE will
be marked as invalid since we still need the information stored in
the PE. We only invalidate the PE when it doesn't have associated
EEH devices and valid child PEs. However, the code used to check
that is wrong. The patch fixes that.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Chris Wilson [Sat, 10 Nov 2012 10:00:06 +0000 (10:00 +0000)]
Revert "drm/i915: enable rc6 on ilk again"
Even with the cumulative set of ilk w/a, rc6 is demonstrably still
failing and causing GPU hangs as found by Peter Wu. So we need to disable
it again until it is stable.
This reverts
commit
456470eb583f063ee84c6818251e638598be0fb8
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Aug 8 23:35:40 2012 +0200
drm/i915: enable rc6 on ilk again
and the follow-on
commit
cd7988eea561a70a4f98e431c1395f913672d626
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun Aug 26 20:33:18 2012 +0200
drm/i915: disable rc6 on ilk when vt-d is enabled
Note: The situation around the gen4/5 gpu hangs that cropped up in 3.7
is rather strange. Most useful bisects have lead to
commit
6c085a728cf000ac1865d66f8c9b52935558b328
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon Aug 20 11:40:46 2012 +0200
drm/i915: Track unbound pages
or even later commits that affect the gem bo recycling, which all is
way past the point where we re-enabled rc6. But somehow
reverting/disabling those commits doesn't help, but disabling rc6 at
least helps for many hangs on ilk. Obviously it doesn't change
anything at all on gen4, and there are still strange issues left on
gen5 (which we unfortunately can't readily reproduce).
Also, the error_state signature of the hangs which can be fixed with
this patch look remarkably different to those which seem to be
unaffected by the rc6 settings: The rc6 hangs are in the ring,
somewhere in the MI_FLUSH/PIPE_CONTROL sequence to make ilk coherent,
wheras all the other hangs tend to be at a random point in the middle
of the user batch. So it could also be that we have different issues.
Until we grow more clue, this at least helps some users.
Reported-by: Peter Wu <lekensteyn@gmail.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=55984
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Added note with some more details about the gen4/5 3.7
gpu hang regression.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Florian Westphal [Thu, 22 Nov 2012 01:32:45 +0000 (01:32 +0000)]
netfilter: ipset: fix netiface set name overflow
attribute is copied to IFNAMSIZ-size stack variable,
but IFNAMSIZ is smaller than IPSET_MAXNAMELEN.
Fortunately nfnetlink needs CAP_NET_ADMIN.
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Linus Torvalds [Sat, 24 Nov 2012 18:32:11 +0000 (08:32 -1000)]
Merge tag 'sound-3.7' of git://git./linux/kernel/git/tiwai/sound
Pull sound build error fix from Takashi Iwai:
"Only a single commit for fixing the build error without CONFIG_PM in
hda driver."
* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix build without CONFIG_PM
Takashi Iwai [Sat, 24 Nov 2012 10:58:24 +0000 (11:58 +0100)]
ALSA: hda - Fix build without CONFIG_PM
I forgot this again... codec->in_pm is in #ifdef CONFIG_PM
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linus Torvalds [Sat, 24 Nov 2012 06:03:14 +0000 (20:03 -1000)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 arch fixes from Peter Anvin:
"Here is a collection of fixes for 3.7-rc7. This is a superset of
tglx' earlier pull request."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86-64: Fix ordering of CFI directives and recent ASM_CLAC additions
x86, microcode, AMD: Add support for family 16h processors
x86-32: Export kernel_stack_pointer() for modules
x86-32: Fix invalid stack address while in softirq
x86, efi: Fix processor-specific memcpy() build error
x86: remove dummy long from EFI stub
x86, mm: Correct vmflag test for checking VM_HUGETLB
x86, amd: Disable way access filter on Piledriver CPUs
x86/mce: Do not change worker's running cpu in cmci_rediscover().
x86/ce4100: Fix PCI configuration register access for devices without interrupts
x86/ce4100: Fix reboot by forcing the reboot method to be KBD
x86/ce4100: Fix pm_poweroff
MAINTAINERS: Update email address for Robert Richter
x86, microcode_amd: Change email addresses, MAINTAINERS entry
MAINTAINERS: Change Boris' email address
EDAC: Change Boris' email address
x86, AMD: Change Boris' email address
Linus Torvalds [Sat, 24 Nov 2012 01:12:17 +0000 (15:12 -1000)]
Merge tag 'for-linus-
20121123' of git://git.infradead.org/mtd-2.6
Pull MTD fixes from David Woodhouse:
"The most important part of this is that it fixes a regression in
Samsung NAND chip detection, introduced by some rework which went into
3.7. The initial fix wasn't quite complete, so it's in two parts. In
fact the first part is committed twice (Artem committed his own copy
of the same patch) and I've merged Artem's tree into mine which
already had that fix.
I'd have recommitted that to make it somewhat cleaner, but figured by
this point in the release cycle it was better to merge *exactly* the
commits which have been in linux-next.
If I'd recommitted, I'd also omit the sparse warning fix. But it's
there, and it's harmless — just marking one function as 'static' in
onenand code.
This also includes a couple more fixes for stable: an AB-BA deadlock
in JFFS2, and an invalid range check in slram."
* tag 'for-linus-
20121123' of git://git.infradead.org/mtd-2.6:
mtd: nand: fix Samsung SLC detection regression
mtd: nand: fix Samsung SLC NAND identification regression
jffs2: Fix lock acquisition order bug in jffs2_write_begin
mtd: onenand: Make flexonenand_set_boundary static
mtd: slram: invalid checking of absolute end address
mtd: ofpart: Fix incorrect NULL check in parse_ofoldpart_partitions()
mtd: nand: fix Samsung SLC NAND identification regression
Linus Torvalds [Fri, 23 Nov 2012 22:36:06 +0000 (12:36 -1000)]
Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull device tree regression fix from Grant Likely:
"Simple build regression fix for DT device drivers on Sparc. An
earlier change had masked out the of_iomap() helper on SPARC."
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
of/address: sparc: Declare of_iomap as an extern function for sparc again
Linus Torvalds [Fri, 23 Nov 2012 22:16:43 +0000 (12:16 -1000)]
Merge tag 'pm-for-3.7-rc7' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management update from Rafael Wysocki:
"Fix for an incorrect error condition check in device PM QoS code that
may lead to an Oops from Guennadi Liakhovetski."
* tag 'pm-for-3.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / QoS: fix wrong error-checking condition
Linus Torvalds [Fri, 23 Nov 2012 22:11:13 +0000 (12:11 -1000)]
Merge tag 'md-3.7-fixes' of git://neil.brown.name/md
Pull md fixes from NeilBrown:
"Several bug fixes for md in 3.7:
- raid5 discard has problems
- raid10 replacement devices have problems
- bad block lock seqlock usage has problems
- dm-raid doesn't free everything"
* tag 'md-3.7-fixes' of git://neil.brown.name/md:
md/raid10: decrement correct pending counter when writing to replacement.
md/raid10: close race that lose writes lost when replacement completes.
md/raid5: Make sure we clear R5_Discard when discard is finished.
md/raid5: move resolving of reconstruct_state earlier in stripe_handle.
md/raid5: round discard alignment up to power of 2.
md: make sure everything is freed when dm-raid stops an array.
md: Avoid write invalid address if read_seqretry returned true.
md: Reassigned the parameters if read_seqretry returned true in func md_is_badblock.
Linus Torvalds [Fri, 23 Nov 2012 22:06:05 +0000 (12:06 -1000)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block layer fixes from Jens Axboe:
"Distilled down version of bug fixes for 3.7. The patches have been
well tested. If you notice that commit dates are from today, it's
because I pulled less important bits out and shuffled them into the
3.8 mix. Apart from that, no changes, base still the same.
It contains:
- Fix for aoe, don't run request_fn while it's plugged.
- Fix for a regression in floppy since 3.6, which causes problems if
no floppy is found.
- Stable fix for blk_exec(), don't touch a request after it has been
sent to the scheduler (and the device as well).
- Five fixes for various nasties in mtip32xx."
* 'for-linus' of git://git.kernel.dk/linux-block:
block: Don't access request after it might be freed
mtip32xx: Fix padding issue
aoe: avoid running request handler on plugged queue
mtip32xx: fix potential NULL pointer dereference in mtip_timeout_function()
mtip32xx: fix shift larger than type warning
mtip32xx: Fix incorrect mask used for erase mode
mtip32xx: Fix to make lba address correct in big-endian systems
mtip32xx: fix potential crash on SEC_ERASE_UNIT
dm: fix deadlock with request based dm and queue request_fn recursion
floppy: destroy floppy workqueue before cleaning up the queue
Andreas Larsson [Fri, 23 Nov 2012 11:24:09 +0000 (12:24 +0100)]
of/address: sparc: Declare of_iomap as an extern function for sparc again
This bug-fix makes sure that of_iomap is defined extern for sparc so that the
sparc-specific implementation of_iomap is once again used when including
include/linux/of_address.h in a sparc context. OF_GPIO that is now available for
sparc relies on this.
The bug was inadvertently introduced in
a850a75, "of/address: add empty static
inlines for !CONFIG_OF", that added a static dummy inline for of_iomap when
!CONFIG_OF_ADDRESS. However, CONFIG_OF_ADDRESS is never defined for sparc, but
there is a sparc-specific implementation /arch/sparc/kernel/of_device_common.c.
This fix takes the same approach as
0bce04b that solved the equivalent problem
for of_address_to_resource.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Linus Torvalds [Fri, 23 Nov 2012 22:01:02 +0000 (12:01 -1000)]
Merge tag 'omapdss-for-3.7-rc' of git://gitorious.org/linux-omap-dss2/linux
Pull omapdss fixes from Tomi Valkeinen:
"Here are a few OMAPDSS fixes for the next -rc. I'm sending these
directly to you, and quite late, as the fbdev tree maintainer
(Florian) has been busy with his work and hasn't had time to manage
the fb patches."
* tag 'omapdss-for-3.7-rc' of git://gitorious.org/linux-omap-dss2/linux:
OMAPDSS: do not fail if dpll4_m4_ck is missing
OMAPFB: Fix possible null pointer dereferencing
OMAPDSS: HDMI: fix missing unlock on error in hdmi_dump_regs()
omapdss: dss: Fix clocks on OMAP363x
OMAPDSS: DSI: fix dsi_get_dsidev_from_id()
Linus Torvalds [Fri, 23 Nov 2012 21:59:26 +0000 (11:59 -1000)]
Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Bugfixes for the i2c subsystem.
Except for a few one-liners, there is mainly one revert because of an
overlooked dependency. Since there is no linux-next at the moment, I
did some extra testing, and all was fine for me."
* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
i2c: mxs: Handle i2c DMA failure properly
i2c: s3c2410: Fix code to free gpios
i2c: omap: ensure writes to dev->buf_len are ordered
Revert "ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints"
i2c: at91: fix SMBus quick command
Linus Torvalds [Fri, 23 Nov 2012 21:58:28 +0000 (11:58 -1000)]
Merge tag 'sound-3.7' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The highlight of this update is the fixes for ASoC kirkwood by
Russell. In addition to that, a couple of regression fixes for
HD-audio due to the runtime PM support on 3.7, and other driver-
specific regression fixes like USB MIDI on non-standard USB audio
drivers."
* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: snd-usb: properly initialize the sync endpoint
ALSA: hda - Cirrus: Correctly clear line_out_pins when moving to speaker
ALSA: hda - Add support for Realtek ALC292
ASoC: kirkwood-i2s: more pause-mode fixes
ASoC: kirkwood-i2s: fix DMA underruns
ASoC: kirkwood-i2s: fix DCO lock detection
ASoC: kirkwood-dma: don't ignore other irq causes on error
ASoC: kirkwood-dma: fix use of virt_to_phys()
ALSA: hda - Limit runtime PM support only to known Intel chips
ALSA: hda - Fix recursive suspend/resume call
ALSA: ua101, usx2y: fix broken MIDI output
ASoC: arizona: Fix typo - Swap value in 48k_rates[] and 44k1_rates[]
ASoC: bells: Fix up git patch application failure
ASoC: cs4271: free allocated GPIO
Linus Torvalds [Fri, 23 Nov 2012 21:55:49 +0000 (11:55 -1000)]
Merge git://git./linux/kernel/git/davem/net
Pull networkign fixes from David Miller:
"Networking bug fixes, Cacio e Pepe edition:
1) BNX2X accidently accesses chip rev specific registers without an
appropriate guard, fix from Ariel Elior.
2) When we removed the routing cache, we set ip_rt_max_size to ~0 just
to keep reporting a value to userspace via sysfs. But the ipv4
IPSEC layer was using this to tune itself which is completely bogus
to now do. Fix from Steffen Klassert.
3) Missing initialization in netfilter ipset code from Jozsef
Kadlecsik.
4) Check CTA_TIMEOUT_NAME length properly in netfilter cttimeout code,
fix from Florian Westphal.
5) After removing the routing cache, we inadvertantly are caching
multicast routes that end up looping back locally, we cannot do
that legitimately any more. Fix from Julian Anastasov.
6) Revert a race fix for 8139cp qemu/kvm that doesn't actually work
properly on real hardware. From Francois Romieu.
7) Fixup errors in example command lines in VXLAN device docs."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
bnx2x: remove redundant warning log
vxlan: fix command usage in its doc
8139cp: revert "set ring address before enabling receiver"
ipv4: do not cache looped multicasts
netfilter: cttimeout: fix buffer overflow
netfilter: ipset: Fix range bug in hash:ip,port,net
xfrm: Fix the gc threshold value for ipv4
Linus Torvalds [Fri, 23 Nov 2012 21:55:09 +0000 (11:55 -1000)]
Merge git://git./linux/kernel/git/davem/sparc
Pull sparc fix from David Miller:
"Bug fix from Al Viro"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: not any error from do_sigaltstack() should fail rt_sigreturn()
Linus Torvalds [Fri, 23 Nov 2012 21:54:22 +0000 (11:54 -1000)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull one more ARM SoC fix from Olof Johansson:
"I missed one pull request from Samsung with one fix in the previous
batch. Here it is -- a dma driver fix for an early version of silicon
that they still support."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: EXYNOS: PL330 MDMA1 fix for revision 0 of Exynos4210 SOC
Guennadi Liakhovetski [Fri, 23 Nov 2012 19:55:06 +0000 (20:55 +0100)]
PM / QoS: fix wrong error-checking condition
dev_pm_qos_add_request() can return 0, 1, or a negative error code,
therefore the correct error test is "if (error < 0)." Checking just for
non-zero return code leads to erroneous setting of the req->dev pointer
to NULL, which then leads to a repeated call to
dev_pm_qos_add_ancestor_request() in st1232_ts_irq_handler(). This in turn
leads to an Oops, when the I2C host adapter is unloaded and reloaded again
because of the inconsistent state of its QoS request list.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Ariel Elior [Thu, 22 Nov 2012 07:16:17 +0000 (07:16 +0000)]
bnx2x: remove redundant warning log
fix bug where a register which was only meant to be read in 578xx/57712
devices causes a bogus error message to be logged when read from other
devices.
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Zhi Yong Wu [Thu, 22 Nov 2012 00:10:01 +0000 (00:10 +0000)]
vxlan: fix command usage in its doc
Some commands don't work in its example doc. The patch will fix it.
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
françois romieu [Wed, 21 Nov 2012 10:07:29 +0000 (10:07 +0000)]
8139cp: revert "set ring address before enabling receiver"
This patch reverts
b01af4579ec41f48e9b9c774e70bd6474ad210db.
The original patch was tested with emulated hardware. Real
hardware chokes.
Fixes https://bugzilla.kernel.org/show_bug.cgi?id=47041
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Manuel Lauss [Thu, 22 Nov 2012 10:58:22 +0000 (11:58 +0100)]
MPI: Fix compilation on MIPS with GCC 4.4 and newer
Since 4.4 GCC on MIPS no longer recognizes the "h" constraint,
leading to this build failure:
CC lib/mpi/generic_mpih-mul1.o
lib/mpi/generic_mpih-mul1.c: In function 'mpihelp_mul_1':
lib/mpi/generic_mpih-mul1.c:50:3: error: impossible constraint in 'asm'
This patch updates MPI with the latest umul_ppm implementations for MIPS.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Cc: James Morris <jmorris@namei.org>
Patchwork: https://patchwork.linux-mips.org/patch/4612/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Al Cooper [Thu, 15 Nov 2012 23:16:14 +0000 (18:16 -0500)]
MIPS: Fix crash that occurs when function tracing is enabled
A recent patch changed some irq routines from inlines to functions.
These routines are called by the tracer code. Now that they're functions,
if they are compiled for function tracing they will call the tracer
and crash the system due to infinite recursion. The fix disables
tracing in these functions by using "notrace" in the function
definition.
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Reviewed-by: David Daney <david.daney@cavium.com>
Pathchwork: https://patchwork.linux-mips.org/patch/4564/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Thu, 15 Nov 2012 11:53:59 +0000 (12:53 +0100)]
MIPS: Merge overlapping bootmem ranges
Without this, we may end up with something like this in /proc/iomem:
01100000-
014fffff : System RAM
01100000-
013bf48f : Kernel code
013bf490-
0149e01f : Kernel data
01500000-
0c0fffff : System RAM
but the two System RAM ranges should be one single range. This particular
case will result in kexec failure on Octeon systems if the kernel being
loaded by kexec is bigger than the already running kernel.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jan Kara [Fri, 23 Nov 2012 13:03:04 +0000 (14:03 +0100)]
jbd: Fix lock ordering bug in journal_unmap_buffer()
Commit
09e05d48 introduced a wait for transaction commit into
journal_unmap_buffer() in the case we are truncating a buffer undergoing commit
in the page stradding i_size on a filesystem with blocksize < pagesize. Sadly
we forgot to drop buffer lock before waiting for transaction commit and thus
deadlock is possible when kjournald wants to lock the buffer.
Fix the problem by dropping the buffer lock before waiting for transaction
commit. Since we are still holding page lock (and that is OK), buffer cannot
disappear under us.
CC: stable@vger.kernel.org # Wherever commit 09e05d48 was taken
Signed-off-by: Jan Kara <jack@suse.cz>
Roland Dreier [Thu, 22 Nov 2012 10:00:11 +0000 (02:00 -0800)]
block: Don't access request after it might be freed
After we've done __elv_add_request() and __blk_run_queue() in
blk_execute_rq_nowait(), the request might finish and be freed
immediately. Therefore checking if the type is REQ_TYPE_PM_RESUME
isn't safe afterwards, because if it isn't, rq might be gone.
Instead, check beforehand and stash the result in a temporary.
This fixes crashes in blk_execute_rq_nowait() I get occasionally when
running with lots of memory debugging options enabled -- I think this
race is usually harmless because the window for rq to be reallocated
is so small.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Selvan Mani [Wed, 14 Nov 2012 13:16:35 +0000 (06:16 -0700)]
mtip32xx: Fix padding issue
Hi Jens,
Another tiny patch.
Removed __packed before the struct smart_attr and added __packed at end of
the structure to fix padding issue.
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Ed Cashin [Fri, 9 Nov 2012 00:17:15 +0000 (19:17 -0500)]
aoe: avoid running request handler on plugged queue
Calling the request handler directly on a plugged queue defeats
the performance improvements provided by the plugging mechanism.
Use the __blk_run_queue function instead of calling the request
handler directly, so that we don't interfere with the block
layer's ability to plug the queue.
Signed-off-by: Ed Cashin <ecashin@coraid.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Wei Yongjun [Thu, 8 Nov 2012 09:35:38 +0000 (17:35 +0800)]
mtip32xx: fix potential NULL pointer dereference in mtip_timeout_function()
The dereference to port should be moved below the NULL test.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Thu, 8 Nov 2012 06:58:53 +0000 (07:58 +0100)]
mtip32xx: fix shift larger than type warning
If we're building a 32-bit kernel and CONFIG_LBADF isn't set,
sector_t is 32-bits wide. The shifts by 32 and 40 are thus
larger than we support.
Cast the sector offset to a u64 to avoid these warnings.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Selvan Mani [Wed, 7 Nov 2012 13:03:56 +0000 (06:03 -0700)]
mtip32xx: Fix incorrect mask used for erase mode
Previous commit use value 3 for erasemode mask.
Changing the mask to correct value to 2
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Selvan Mani [Wed, 7 Nov 2012 13:03:53 +0000 (06:03 -0700)]
mtip32xx: Fix to make lba address correct in big-endian systems
Earlier lba address was assigned directly to lba_low and lba_low_ex,
which would result in a different number (bytes reversed) in
big-endian systems. Now assigning lba address byte-by-byte to fis.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Selvan Mani [Wed, 7 Nov 2012 13:03:37 +0000 (06:03 -0700)]
mtip32xx: fix potential crash on SEC_ERASE_UNIT
The mtip driver lifted this code from elsewhere and then added a special
handling check for SEC_ERASE_UNIT. If the caller tries to do a security
erase but passes no output data for the command then outbuf is not
allocated and the driver duly explodes.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Tue, 6 Nov 2012 11:24:26 +0000 (12:24 +0100)]
dm: fix deadlock with request based dm and queue request_fn recursion
Request based dm attempts to re-run the request queue off the
request completion path. If used with a driver that potentially does
end_io from its request_fn, we could deadlock trying to recurse
back into request dispatch. Fix this by punting the request queue
run to kblockd.
Tested to fix a quickly reproducible deadlock in such a scenario.
Cc: stable@kernel.org
Acked-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jiri Kosina [Tue, 6 Nov 2012 10:47:13 +0000 (11:47 +0100)]
floppy: destroy floppy workqueue before cleaning up the queue
We need to first destroy the floppy_wq workqueue before cleaning up
the queue. Otherwise we might race with still pending work with the
workqueue, but all the block queue already gone. This might lead to
various oopses, such as
CPU 0
Pid: 6, comm: kworker/u:0 Not tainted 3.7.0-rc4 #1 Bochs Bochs
RIP: 0010:[<
ffffffff8134eef5>] [<
ffffffff8134eef5>] blk_peek_request+0xd5/0x1c0
RSP: 0000:
ffff88000dc7dd88 EFLAGS:
00010092
RAX:
0000000000000001 RBX:
0000000000000000 RCX:
0000000000000000
RDX:
ffff88000f602688 RSI:
ffffffff81fd95d8 RDI:
6b6b6b6b6b6b6b6b
RBP:
ffff88000dc7dd98 R08:
ffffffff81fd95c8 R09:
0000000000000000
R10:
ffffffff81fd9480 R11:
0000000000000001 R12:
6b6b6b6b6b6b6b6b
R13:
ffff88000dc7dfd8 R14:
ffff88000dc7dfd8 R15:
0000000000000000
FS:
0000000000000000(0000) GS:
ffffffff81e21000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
CR2:
0000000000000000 CR3:
0000000001e11000 CR4:
00000000000006f0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
Process kworker/u:0 (pid: 6, threadinfo
ffff88000dc7c000, task
ffff88000dc5ecc0)
Stack:
0000000000000000 0000000000000000 ffff88000dc7ddb8 ffffffff8134efee
ffff88000dc7ddb8 0000000000000000 ffff88000dc7dde8 ffffffff814aef3c
ffffffff81e75d80 ffff88000dc0c640 ffff88000fbfb000 ffffffff814aed90
Call Trace:
[<
ffffffff8134efee>] blk_fetch_request+0xe/0x30
[<
ffffffff814aef3c>] redo_fd_request+0x1ac/0x400
[<
ffffffff814aed90>] ? start_motor+0x130/0x130
[<
ffffffff8106b526>] process_one_work+0x136/0x450
[<
ffffffff8106af65>] ? manage_workers+0x205/0x2e0
[<
ffffffff8106bb6d>] worker_thread+0x14d/0x420
[<
ffffffff8106ba20>] ? rescuer_thread+0x1a0/0x1a0
[<
ffffffff8107075a>] kthread+0xba/0xc0
[<
ffffffff810706a0>] ? __kthread_parkme+0x80/0x80
[<
ffffffff818b553a>] ret_from_fork+0x7a/0xb0
[<
ffffffff810706a0>] ? __kthread_parkme+0x80/0x80
Code: 0f 84 c0 00 00 00 83 f8 01 0f 85 e2 00 00 00 81 4b 40 00 00 80 00 48 89 df e8 58 f8 ff ff be fb ff ff ff
fe ff ff <49> 8b 1c 24 49 39 dc 0f 85 2e ff ff ff 41 0f b6 84 24 28 04 00
RIP [<
ffffffff8134eef5>] blk_peek_request+0xd5/0x1c0
RSP <
ffff88000dc7dd88>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Dave Martin [Thu, 22 Nov 2012 11:50:43 +0000 (12:50 +0100)]
ARM: 7583/1: decompressor: Enable unaligned memory access for v6 and above
Modern GCC can generate code which makes use of the CPU's native
unaligned memory access capabilities. This is useful for the C
decompressor implementations used for unpacking compressed kernels.
This patch disables alignment faults and enables the v6 unaligned
access model on CPUs which support these features (i.e., v6 and
later), allowing full unaligned access support for C code in the
decompressor.
The decompressor C code must not be built to assume that unaligned
access works if support for v5 or older platforms is included in
the kernel.
For correct code generation, C decompressor code must always use
the get_unaligned and put_unaligned accessors when dealing with
unaligned pointers, regardless of this patch.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Fri, 23 Nov 2012 07:45:34 +0000 (21:45 -1000)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"This fixes recent regression where /dev/input/mice got assigned wrong
device node which messed up setups with static /dev, and a regression
in ads7846 GPIO debounce setup."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
ARM - OMAP: ads7846: fix pendown debounce setting
Input: ads7846 - enable pendown GPIO debounce time setting
Input: mousedev - move /dev/input/mice to the correct minor
Input: MT - document new 'flags' argument of input_mt_init_slots()
Olof Johansson [Fri, 23 Nov 2012 04:43:20 +0000 (20:43 -0800)]
Merge branch 'v3.7-samsung-fixes-3' of git://git./linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim:
Here is Samsung fixes for v3.7 and it is for fixing of mdma1 address
for exynos4210 rev0 SoC.
* 'v3.7-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: PL330 MDMA1 fix for revision 0 of Exynos4210 SOC
Signed-off-by: Olof Johansson <olof@lixom.net>
Alexey Kardashevskiy [Fri, 23 Nov 2012 02:25:39 +0000 (13:25 +1100)]
powerpc/pseries: Fix oops with MSIs when missing EEH PEs
The new EEH code introduced a small regression, if the EEH PEs
are missin (which happens currently in qemu for example), it
will deref a NULL pointer in the MSI code.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Marek Vasut [Sun, 18 Nov 2012 05:25:07 +0000 (06:25 +0100)]
i2c: mxs: Handle i2c DMA failure properly
Properly terminate the DMA transfer in case the DMA PIO transfer
or setup fails for any reason.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Julian Anastasov [Thu, 22 Nov 2012 21:04:14 +0000 (23:04 +0200)]
ipv4: do not cache looped multicasts
Starting from 3.6 we cache output routes for
multicasts only when using route to 224/4. For local receivers
we can set RTCF_LOCAL flag depending on the membership but
in such case we use maddr and saddr which are not caching
keys as before. Additionally, we can not use same place to
cache routes that differ in RTCF_LOCAL flag value.
Fix it by caching only RTCF_MULTICAST entries
without RTCF_LOCAL (send-only, no loopback). As a side effect,
we avoid unneeded lookup for fnhe when not caching because
multicasts are not redirected and they do not learn PMTU.
Thanks to Maxime Bizon for showing the caching
problems in __mkroute_output for 3.6 kernels: different
RTCF_LOCAL flag in cache can lead to wrong ip_mc_output or
ip_output call and the visible problem is that traffic can
not reach local receivers via loopback.
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Tested-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jani Nikula [Mon, 12 Nov 2012 12:33:45 +0000 (14:33 +0200)]
drm/i915: do not default to 18 bpp for eDP if missing from VBT
commit
500a8cc466a24e2fbc4c86ef9c6467ae2ffdeb0c
Author: Zhenyu Wang <zhenyuw@linux.intel.com>
Date: Wed Jan 13 11:19:52 2010 +0800
drm/i915: parse eDP panel color depth from VBT block
originally introduced parsing bpp for eDP from VBT, with a default of 18
bpp if the eDP BIOS data block is not present. Turns out that default seems
to break the Macbook Pro with retina display, as noted in
commit
4344b813f105a19f793f1fd93ad775b784648b95
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri Aug 10 11:10:20 2012 +0200
drm/i915: ignore eDP bpc settings from vbt
Since we can't ignore bpc settings from VBT completely after all, get rid
of the default. Do not clamp eDP to 18 bpp by default if the eDP BDB is
missing from VBT.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Tested-by: Henrik Rydberg <rydberg@euromail.se>
[danvet: paste in the updated commit message from irc.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David S. Miller [Thu, 22 Nov 2012 20:27:18 +0000 (15:27 -0500)]
Merge branch 'master' of git://1984.lsi.us.es/nf
Pablo Neira Ayuso says:
====================
The following patchset contains two Netfilter fixes:
* Fix buffer overflow in the name of the timeout policy object
in the cttimeout infrastructure, from Florian Westphal.
* Fix a bug in the hash set in case that IP ranges are
specified, from Jozsef Kadlecsik.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 22 Nov 2012 20:24:30 +0000 (15:24 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
This pull request is intended for 3.7 and contains a single patch to
fix the IPsec gc threshold value for ipv4.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Mack [Thu, 22 Nov 2012 19:27:59 +0000 (20:27 +0100)]
ALSA: snd-usb: properly initialize the sync endpoint
Jeffrey Barish reported an obvious bug in the pcm part of the usb-audio
driver which causes the code to not initialize the sync endpoint from
configure_endpoint().
Reported-by: Jeffrey Barish <jeff_barish@earthlink.net>
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: stable@kernel.org [3.5+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linus Torvalds [Thu, 22 Nov 2012 19:22:13 +0000 (09:22 -1000)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A few more fixes for final 3.7. Two dealing with pinmux setup on
OMAP, and one dealing with TV output on DaVinci. And one small
MAINTAINER update."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: davinci: dm644x: fix out range signal for ED
ARM: OMAP4: TWL: mux sys_drm_msecure as output for PMIC
ARM: OMAP3: igep0020: Set WIFI/BT GPIO pins in correct mux mode
ARM: OMAP: Add maintainer entry for IGEP machines