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2012-05-13mtd: plat_nand: Add default partition parser to driverH Hartley Sweeten
Use cmdlinepart as the default partition parser and allow the arch setup code to still use their own partition parsers. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-05-13Merge tag 'for-linus-3.4-20120513' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull three MTD fixes from David Woodhouse: - Fix a lock ordering deadlock in JFFS2 - Fix an oops in the dataflash driver, triggered by a dummy call to test whether it has OTP functionality. - Fix request_mem_region() failure on amsdelta NAND driver. * tag 'for-linus-3.4-20120513' of git://git.infradead.org/linux-mtd: mtd: ams-delta: fix request_mem_region() failure jffs2: Fix lock acquisition order bug in gc path mtd: fix oops in dataflash driver
2012-05-12Linux 3.4-rc7Linus Torvalds
.. and this should hopefully be the last -rc before final 3.4 release.
2012-05-12Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM: SoC fixes from Olof Johansson: "I was hoping to be done with fixes for 3.4 but we got two branches from subarch maintainers the last couple of days. So here is one last(?) pull request for arm-soc containing 7 patches: - Five of them are for shmobile dealing with SMP setup and compile failures - The remaining two are for regressions on the Samsung platforms" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1 ARM: EXYNOS: use s5p-timer for UniversalC210 board ARM / mach-shmobile: Invalidate caches when booting secondary cores ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
2012-05-12Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
Pull a few more GPIO bug fixes from Grant Likely: "Oops, missed a couple. Here's an updated pull req for GPIO" A set of PCH bug fixes, and one patch to fix up compile warnings * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: gpio/exynos: Fix compiler warnings when non-exynos machines are selected gpio: pch9: Use proper flow type handlers
2012-05-12Merge branch 'v3.4-samsung-fixes-5' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes * 'v3.4-samsung-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1 ARM: EXYNOS: use s5p-timer for UniversalC210 board
2012-05-13ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1Kukjin Kim
It should be (1 << 2) for ctrlbit of exynos5_clk_pdma1. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-13ARM: EXYNOS: use s5p-timer for UniversalC210 boardMarek Szyprowski
Commit 069d4e743 ("ARM: EXYNOS4: Remove clock event timers using ARM private timers") removed support for local timers and forced to use MCT as event source. However MCT is not operating properly on early revision of EXYNOS4 SoCs. All UniversalC210 boards are based on it, so that commit broke support for it. This patch provides a workaround that enables UniversalC210 boards to boot again. s5p-timer is used as an event source, it works only for non-SMP builds. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-12Merge branch 'fixes' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/renesas into fixes By Guennadi Liakhovetski (2) and others via Rafael J. Wysocki: "[...] urgent fixes for Renesas ARM-based platforms. Four of these commits are fixes of regressions new in 3.4-rc and the last one is necessary for SMP to work on those systems in general." * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/renesas: ARM / mach-shmobile: Invalidate caches when booting secondary cores ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
2012-05-12ARM / mach-shmobile: Invalidate caches when booting secondary coresMagnus Damm
Make sure L1 caches are invalidated when booting secondary cores. Needed to boot all mach-shmobile SMP systems that are using Cortex-A9 including sh73a0, r8a7779 and EMEV2. Thanks to imx and tegra guys for actual code. Signed-off-by: Magnus Damm <damm@opensource.se> Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12ARM / mach-shmobile: sh73a0 SMP TWD boot regression fixKuninori Morimoto
Fix SMP TWD boot regression on sh73a0 based platforms caused by: 4200b16 ARM: shmobile: convert to twd_local_timer_register() interface After the merge of the above commit it has been impossible to boot sh73a0 based SoCs with SMP enabled and CONFIG_HAVE_ARM_TWD=y. The kernel crashes at smp_init_cpus() timing which is before the console has been initialized, so to the user this looks like a kernel lock up without any particular error message. This patch fixes the regression on sh73a0 by moving the TWD registration code from smp_init_cpus() to sys_timer->init() time. This patch removed shmobile_twd_init() which is no longer needed Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12ARM / mach-shmobile: r8a7779 SMP TWD boot regression fixMagnus Damm
Fix SMP TWD boot regression on r8a7779 based platforms caused by: 4200b16 ARM: shmobile: convert to twd_local_timer_register() interface After the merge of the above commit it has been impossible to boot r8a7779 based SoCs with SMP enabled and CONFIG_HAVE_ARM_TWD=y. The kernel crashes at smp_init_cpus() timing which is before the console has been initialized, so to the user this looks like a kernel lock up without any particular error message. This patch fixes the regression on r8a7779 by moving the TWD registration code from smp_init_cpus() to sys_timer->init() time. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helperGuennadi Liakhovetski
This also fixes the following modular mmc build failure: arch/arm/mach-shmobile/built-in.o: In function `mackerel_sdhi0_gpio_cd': pfc-sh7372.c:(.text+0x1138): undefined reference to `mmc_detect_change' on this platform by eliminating the use of an inline function, which calls into the mmc core. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: Simon Horman <horms@verge.net.au> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helperGuennadi Liakhovetski
This also fixes the following modular mmc build failure: arch/arm/mach-shmobile/built-in.o: In function `ag5evm_sdhi0_gpio_cd': pfc-sh73a0.c:(.text+0x7c0): undefined reference to `mmc_detect_change' on this platform by eliminating the use of an inline function, which calls into the mmc core. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Tested-by: Simon Horman <horms@verge.net.au> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of minor qla and virto fixes plus one major regression fix (oops in all legacy host drivers)." * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] virtio_scsi: fix TMF use-after-free [SCSI] fix oops in all legacy host adapters caused by 6f381fa [SCSI] qla2xxx: Update version number to 8.04.00.03-k. [SCSI] qla2xxx: Properly check for current state after the fabric-login request. [SCSI] qla2xxx: Proper completion to scsi-ml for scsi status task_set_full and busy. [SCSI] qla2xxx: Block flash access from application when device is initialized for ISP82xx. [SCSI] qla2xxx: Fix reset time out as qla2xxx not ack to reset request.
2012-05-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David S. Miller: 1) Since we do RCU lookups on ipv4 FIB entries, we have to test if the entry is dead before returning it to our caller. 2) openvswitch locking and packet validation fixes from Ansis Atteka, Jesse Gross, and Pravin B Shelar. 3) Fix PM resume locking in IGB driver, from Benjamin Poirier. 4) Fix VLAN header handling in vhost-net and macvtap, from Basil Gor. 5) Revert a bogus network namespace isolation change that was causing regressions on S390 networking devices. 6) If bonding decides to process and handle a LACPDU frame, we shouldn't bump the rx_dropped counter. From Jiri Bohac. 7) Fix mis-calculation of available TX space in r8169 driver when doing TSO, which can lead to crashes and/or hung device. From Julien Ducourthial. 8) SCTP does not validate cached routes properly in all cases, from Nicolas Dichtel. 9) Link status interrupt needs to be handled in ks8851 driver, from Stephen Boyd. 10) Use capable(), not cap_raised(), in connector/userns netlink code. From Eric W. Biederman via Andrew Morton. 11) Fix pktgen OOPS on module unload, from Eric Dumazet. 12) iwlwifi under-estimates SKB truesizes, also from Eric Dumazet. 13) Cure division by zero in SFC driver, from Ben Hutchings. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits) ks8851: Update link status during link change interrupt macvtap: restore vlan header on user read vhost-net: fix handle_rx buffer size bonding: don't increase rx_dropped after processing LACPDUs connector/userns: replace netlink uses of cap_raised() with capable() sctp: check cached dst before using it pktgen: fix crash at module unload Revert "net: maintain namespace isolation between vlan and real device" ehea: fix losing of NEQ events when one event occurred early igb: fix rtnl race in PM resume path ipv4: Do not use dead fib_info entries. r8169: fix unsigned int wraparound with TSO sfc: Fix division by zero when using one RX channel and no SR-IOV openvswitch: Validation of IPv6 set port action uses IPv4 header net: compare_ether_addr[_64bits]() has no ordering cdc_ether: Ignore bogus union descriptor for RNDIS devices bnx2x: bug fix when loading after SAN boot e1000: Silence sparse warnings by correcting type igb, ixgbe: netdev_tx_reset_queue incorrectly called from tx init path openvswitch: Release rtnl_lock if ovs_vport_cmd_build_info() failed. ...
2012-05-12Merge tag 'dm-3.4-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm Pull device-mapper fixes from Alasdair G Kergon: "Fix a couple of serious memory leaks in device-mapper thin provisioning and tidy its MODULE_DESCRIPTION. Mitigate occasional reported hangs associated with multipath scsi_dh module loading." * tag 'dm-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: dm mpath: check if scsi_dh module already loaded before trying to load dm thin: correct module description dm thin: fix unprotected use of prepared_discards list dm thin: reinstate missing mempool_free in cell_release_singleton
2012-05-12MAINTAINERS: Add myself as the cpufreq maintainerRafael J. Wysocki
Since cpufreq has no official maintainer at the moment, I'm willing to maintain it along some other power management core code I've been maintaining already. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-12dm mpath: check if scsi_dh module already loaded before trying to loadMike Snitzer
If the requested scsi_dh module is already loaded then skip request_module(). Multipath table loads can hang in an unnecessary __request_module. Reported-by: Ben Marzinski <bmarzins@redhat.com> Cc: stable@kernel.org Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-05-12dm thin: correct module descriptionAlasdair G Kergon
Remove duplicate copy of string "device-mapper" (DM_NAME) from MODULE_DESCRIPTION. Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-05-12dm thin: fix unprotected use of prepared_discards listMike Snitzer
Fix two places in commit 104655fd4dce ("dm thin: support discards") that didn't use pool->lock to protect against concurrent changes to the prepared_discards list. Without this fix, thin_endio() can race with process_discard(), leading to concurrent list_add()s that result in the processes locking up with an error like the following: WARNING: at lib/list_debug.c:32 __list_add+0x8f/0xa0() ... list_add corruption. next->prev should be prev (ffff880323b96140), but was ffff8801d2c48440. (next=ffff8801d2c485c0). ... Pid: 17205, comm: kworker/u:1 Tainted: G W O 3.4.0-rc3.snitm+ #1 Call Trace: [<ffffffff8103ca1f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff8103cb16>] warn_slowpath_fmt+0x46/0x50 [<ffffffffa04f6ce6>] ? bio_detain+0xc6/0x210 [dm_thin_pool] [<ffffffff8124ff3f>] __list_add+0x8f/0xa0 [<ffffffffa04f70d2>] process_discard+0x2a2/0x2d0 [dm_thin_pool] [<ffffffffa04f6a78>] ? remap_and_issue+0x38/0x50 [dm_thin_pool] [<ffffffffa04f7c3b>] process_deferred_bios+0x7b/0x230 [dm_thin_pool] [<ffffffffa04f7df0>] ? process_deferred_bios+0x230/0x230 [dm_thin_pool] [<ffffffffa04f7e42>] do_worker+0x52/0x60 [dm_thin_pool] [<ffffffff81056fa9>] process_one_work+0x129/0x450 [<ffffffff81059b9c>] worker_thread+0x17c/0x3c0 [<ffffffff81059a20>] ? manage_workers+0x120/0x120 [<ffffffff8105eabe>] kthread+0x9e/0xb0 [<ffffffff814ceda4>] kernel_thread_helper+0x4/0x10 [<ffffffff8105ea20>] ? kthread_freezable_should_stop+0x70/0x70 [<ffffffff814ceda0>] ? gs_change+0x13/0x13 ---[ end trace 7e0a523bc5e52692 ]--- Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-05-12dm thin: reinstate missing mempool_free in cell_release_singletonMike Snitzer
Fix a significant memory leak inadvertently introduced during simplification of cell_release_singleton() in commit 6f94a4c45a6f744383f9f695dde019998db3df55 ("dm thin: fix stacked bi_next usage"). A cell's hlist_del() must be accompanied by a mempool_free(). Use __cell_release() to do this, like before. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-05-11gpio/exynos: Fix compiler warnings when non-exynos machines are selectedSachin Kamat
Fixes the following compiler warnings: drivers/gpio/gpio-samsung.c: In function ‘samsung_gpiolib_init’: drivers/gpio/gpio-samsung.c:2980:1: warning: label ‘err_ioremap1’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2978:1: warning: label ‘err_ioremap2’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2976:1: warning: label ‘err_ioremap3’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2974:1: warning: label ‘err_ioremap4’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2722:55: warning: unused variable ‘gpio_base4’ [-Wunused-variable] drivers/gpio/gpio-samsung.c:455:32: warning: ‘exynos_gpio_cfg’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2126:33: warning: ‘exynos4_gpios_1’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2228:33: warning: ‘exynos4_gpios_2’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2373:33: warning: ‘exynos4_gpios_3’ defined but not used [-Wunused-variable] Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-11gpio: pch9: Use proper flow type handlersThomas Gleixner
Jean-Francois Dagenais reported: Configuring a gpio pin with the gpio-pch driver with "IRQF_TRIGGER_LOW | IRQF_ONESHOT" generates an interrupt storm for threaded ISR until the ISR thread actually gets to physically clear the interrupt on the triggering chip!! The immediate observable symptom is the high CPU usage for my ISR thread task and the interrupt count in /proc/interrupts incrementing radically. The driver is wrong in several ways: 1) Using handle_simple_irq() does not provide proper flow control handling. In the case of oneshot threaded handlers for the demultiplexed interrupts this results in an interrupt storm because the simple handler does not deal with masking/unmasking. Even without threaded oneshot handlers an interrupt storm for level type interrupts can easily be triggered when the interrupt is disabled and the interrupt line is activated from the device. 2) Acknowlegding the demultiplexed interrupt before calling the handler is wrong for level type interrupts. 3) The set_type function unconditionally enables the interrupt. It's supposed to set the type and nothing else. The unmasking is done by the core code. Move the acknowledge code into a separate function and add it to the demux irqchip callbacks. Remove the unconditional enabling from the set_type() callback and set the proper flow handlers depending on the selected type (level/edge). Reported-and-tested-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-11Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
Pull GPIO omap bug fix from Grant Likely. * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: gpio/omap: fix incorrect initialization of omap_gpio_mod_init
2012-05-11Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull another powerpc irq fix from Benjamin Herrenschmidt: "It looks like my previous fix for the lazy irq masking problem wasn't quite enough. There was another problem related to performance monitor interrupts acting as NMIs leaving the flags in an incorrect state. Here's a fix that finally seems to make perf solid again." * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/irq: Fix another case of lazy IRQ state getting out of sync
2012-05-11Merge branch '3.4-urgent' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull target fix from Nicholas Bellinger: "This patch removes some incorrect legacy code to free se_lun_acl memory in the NodeACL release path that could potentially trigger an OOPS during shutdown once dynamic -> explicit initiator NodeACL conversion has occurred. That said, we've been able to trigger an OOPS in v4.0 code for this special case when the associated MappedLUNs had not also been made explicit based on active TPG LUN layout during the conversion, so it really makes senses to go ahead and drop this extra cruft to avoid any possible issues here. This ends up only effecting iscsi-target module code (it's the only user) and is CC'ed to stable." * '3.4-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: Drop incorrect se_lun_acl release for dynamic -> explict ACL conversion
2012-05-12powerpc/irq: Fix another case of lazy IRQ state getting out of syncBenjamin Herrenschmidt
So we have another case of paca->irq_happened getting out of sync with the HW irq state. This can happen when a perfmon interrupt occurs while soft disabled, as it will return to a soft disabled but hard enabled context while leaving a stale PACA_IRQ_HARD_DIS flag set. This patch fixes it, and also adds a test for the condition of those flags being out of sync in arch_local_irq_restore() when CONFIG_TRACE_IRQFLAGS is enabled. This helps catching those gremlins faster (and so far I can't seem see any anymore, so that's good news). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-05-11ks8851: Update link status during link change interruptStephen Boyd
If a link change interrupt comes in we just clear the interrupt and continue along without notifying the upper networking layers that the link has changed. Use the mii_check_link() function to update the link status whenever a link change interrupt occurs. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11macvtap: restore vlan header on user readBasil Gor
Ethernet vlan header is not on the packet and kept in the skb->vlan_tci when it comes from lower dev. This patch inserts vlan header in user buffer during skb copy on user read. Signed-off-by: Basil Gor <basil.gor@gmail.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11vhost-net: fix handle_rx buffer sizeBasil Gor
Take vlan header length into account, when vlan id is stored as vlan_tci. Otherwise tagged packets coming from macvtap will be truncated. Signed-off-by: Basil Gor <basil.gor@gmail.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11target: Drop incorrect se_lun_acl release for dynamic -> explict ACL conversionNicholas Bellinger
This patch removes some potentially problematic legacy code within core_clear_initiator_node_from_tpg() that was originally intended to release left over se_lun_acl setup during dynamic NodeACL+MappedLUN generate when running with TPG demo-mode operation. Since we now only ever expect to allocate and release se_lun_acl from within target_core_fabric_configfs.c:target_fabric_make_mappedlun() and target_fabric_drop_mappedlun() context respectively, this code for demo-mode release is incorrect and needs to be removed. Cc: Christoph Hellwig <hch@lst.de> Cc: Andy Grover <agrover@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-05-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu Pull a m68knommu fix from Greg Ungerer: "It contains a single fix for including the ColdFire QSPI interface setup code when enabled as a module. This was broken in the consolidation of the ColdFire SoC device tables in the 3.4 merge window." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: enable qspi support when SPI_COLDFIRE_QSPI = m
2012-05-11mm: raise MemFree by reverting percpu_pagelist_fraction to 0Hugh Dickins
Why is there less MemFree than there used to be? It perturbed a test, so I've just been bisecting linux-next, and now find the offender went upstream yesterday. Commit 93278814d359 "mm: fix division by 0 in percpu_pagelist_fraction()" mistakenly initialized percpu_pagelist_fraction to the sysctl's minimum 8, which leaves 1/8th of memory on percpu lists (on each cpu??); but most of us expect it to be left unset at 0 (and it's not then used as a divisor). MemTotal: 8061476kB 8061476kB 8061476kB 8061476kB 8061476kB 8061476kB Repetitive test with percpu_pagelist_fraction 8: MemFree: 6948420kB 6237172kB 6949696kB 6840692kB 6949048kB 6862984kB Same test with percpu_pagelist_fraction back to 0: MemFree: 7945000kB 7944908kB 7948568kB 7949060kB 7948796kB 7948812kB Signed-off-by: Hugh Dickins <hughd@google.com> [ We really should fix the crazy sysctl interface too, but that's a separate thing - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10bonding: don't increase rx_dropped after processing LACPDUsJiri Bohac
Since commit 3aba891d, bonding processes LACP frames (802.3ad mode) with bond_handle_frame(). Currently a copy of the skb is made and the original is left to be processed by other rx_handlers and the rest of the network stack by returning RX_HANDLER_ANOTHER. As there is no protocol handler for PKT_TYPE_LACPDU, the frame is dropped and dev->rx_dropped increased. Fix this by making bond_handle_frame() return RX_HANDLER_CONSUMED if bonding has processed the LACP frame. Signed-off-by: Jiri Bohac <jbohac@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10connector/userns: replace netlink uses of cap_raised() with capable()Eric W. Biederman
In 2009 Philip Reiser notied that a few users of netlink connector interface needed a capability check and added the idiom cap_raised(nsp->eff_cap, CAP_SYS_ADMIN) to a few of them, on the premise that netlink was asynchronous. In 2011 Patrick McHardy noticed we were being silly because netlink is synchronous and removed eff_cap from the netlink_skb_params and changed the idiom to cap_raised(current_cap(), CAP_SYS_ADMIN). Looking at those spots with a fresh eye we should be calling capable(CAP_SYS_ADMIN). The only reason I can see for not calling capable is that it once appeared we were not in the same task as the caller which would have made calling capable() impossible. In the initial user_namespace the only difference between between cap_raised(current_cap(), CAP_SYS_ADMIN) and capable(CAP_SYS_ADMIN) are a few sanity checks and the fact that capable(CAP_SYS_ADMIN) sets PF_SUPERPRIV if we use the capability. Since we are going to be using root privilege setting PF_SUPERPRIV seems the right thing to do. The motivation for this that patch is that in a child user namespace cap_raised(current_cap(),...) tests your capabilities with respect to that child user namespace not capabilities in the initial user namespace and thus will allow processes that should be unprivielged to use the kernel services that are only protected with cap_raised(current_cap(),..). To fix possible user_namespace issues and to just clean up the code replace cap_raised(current_cap(), CAP_SYS_ADMIN) with capable(CAP_SYS_ADMIN). Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Patrick McHardy <kaber@trash.net> Cc: Philipp Reisner <philipp.reisner@linbit.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com> Acked-by: Andrew G. Morgan <morgan@kernel.org> Cc: Vasiliy Kulikov <segoon@openwall.com> Cc: David Howells <dhowells@redhat.com> Reviewed-by: James Morris <james.l.morris@oracle.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10sctp: check cached dst before using itNicolas Dichtel
dst_check() will take care of SA (and obsolete field), hence IPsec rekeying scenario is taken into account. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Vlad Yaseivch <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10pktgen: fix crash at module unloadEric Dumazet
commit 7d3d43dab4e9 (net: In unregister_netdevice_notifier unregister the netdevices.) makes pktgen crashing at module unload. [ 296.820578] BUG: spinlock bad magic on CPU#6, rmmod/3267 [ 296.820719] lock: ffff880310c38000, .magic: ffff8803, .owner: <none>/-1, .owner_cpu: -1 [ 296.820943] Pid: 3267, comm: rmmod Not tainted 3.4.0-rc5+ #254 [ 296.821079] Call Trace: [ 296.821211] [<ffffffff8168a715>] spin_dump+0x8a/0x8f [ 296.821345] [<ffffffff8168a73b>] spin_bug+0x21/0x26 [ 296.821507] [<ffffffff812b4741>] do_raw_spin_lock+0x131/0x140 [ 296.821648] [<ffffffff8169188e>] _raw_spin_lock+0x1e/0x20 [ 296.821786] [<ffffffffa00cc0fd>] __pktgen_NN_threads+0x4d/0x140 [pktgen] [ 296.821928] [<ffffffffa00ccf8d>] pktgen_device_event+0x10d/0x1e0 [pktgen] [ 296.822073] [<ffffffff8154ed4f>] unregister_netdevice_notifier+0x7f/0x100 [ 296.822216] [<ffffffffa00d2a0b>] pg_cleanup+0x48/0x73 [pktgen] [ 296.822357] [<ffffffff8109528e>] sys_delete_module+0x17e/0x2a0 [ 296.822502] [<ffffffff81699652>] system_call_fastpath+0x16/0x1b Hold the pktgen_thread_lock while splicing pktgen_threads, and test pktgen_exiting in pktgen_device_event() to make unload faster. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10Revert "net: maintain namespace isolation between vlan and real device"David S. Miller
This reverts commit 8a83a00b0735190384a348156837918271034144. It causes regressions for S390 devices, because it does an unconditional DST drop on SKBs for vlans and the QETH device needs the neighbour entry hung off the DST for certain things on transmit. Arnd can't remember exactly why he even needed this change. Conflicts: drivers/net/macvlan.c net/8021q/vlan_dev.c net/core/dev.c Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10ehea: fix losing of NEQ events when one event occurred earlyThadeu Lima de Souza Cascardo
The NEQ interrupt is only triggered when there was no previous pending interrupt. If we request irq handling after an interrupt has occurred, we will never get an interrupt until we call H_RESET_EVENTS. Events seem to be cleared when we first register the NEQ. So, when we requested irq handling right after registering it, a possible race with an interrupt was much less likely. Now, there is a chance we may lose this race and never get any events. The fix here is to poll and acknowledge any events that might have happened right after registering the irq handler. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10igb: fix rtnl race in PM resume pathBenjamin Poirier
Since the caller (PM resume code) is not the one holding rtnl, when taking the 'else' branch rtnl may be released at any moment, thereby defeating the whole purpose of this code block. Signed-off-by: Benjamin Poirier <bpoirier@suse.de> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10ipv4: Do not use dead fib_info entries.David S. Miller
Due to RCU lookups and RCU based release, fib_info objects can be found during lookup which have fi->fib_dead set. We must ignore these entries, otherwise we risk dereferencing the parts of the entry which are being torn down. Reported-by: Yevgen Pronenko <yevgen.pronenko@sonymobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10Merge branch 'parisc' (PA-RISC compile fixes)Linus Torvalds
Merge PA-RISC compile fixes from Rolf Eike Beer: "Since commit d66acc39c7ce ("bitops: Optimise get_order()") getorder.h includes log2.h which leads to an include loop on PA-RISC, bringing a bunch of other breakage to light. This patchset fixes the compilation of the current state of 3.4 on HPPA. Unchanged against the first version, just added an Ack by Grant." * emailed from Rolf Eike Beer <eike-kernel@sf-tec.de>: (5 patches) parisc: move definition of PAGE0 to asm/page.h parisc: add missing include of asm/page.h to asm/pgtable.h parisc: drop include of asm/pdc.h from asm/hardware.h parisc: add missing forward declarations in asm/hardware.h parisc: add missing includes in asm/spinlock.h
2012-05-10Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds
Merge misc fixes from Andrew Morton. * emailed from Andrew Morton <akpm@linux-foundation.org>: (8 patches) MAINTAINERS: add maintainer for LED subsystem mm: nobootmem: fix sign extend problem in __free_pages_memory() drivers/leds: correct __devexit annotations memcg: free spare array to avoid memory leak namespaces, pid_ns: fix leakage on fork() failure hugetlb: prevent BUG_ON in hugetlb_fault() -> hugetlb_cow() mm: fix division by 0 in percpu_pagelist_fraction() proc/pid/pagemap: correctly report non-present ptes and holes between vmas
2012-05-10parisc: move definition of PAGE0 to asm/page.hRolf Eike Beer
This was defined in asm/pdc.h which needs to include asm/page.h for __PAGE_OFFSET. This leads to an include loop so that page.h eventually will include pdc.h again. While this is no problem because of header guards, it is a problem because some symbols may be undefined. Such an error is this: In file included from include/linux/bitops.h:35:0, from include/asm-generic/getorder.h:7, from arch/parisc/include/asm/page.h:162, from arch/parisc/include/asm/pdc.h:346, from arch/parisc/include/asm/processor.h:16, from arch/parisc/include/asm/spinlock.h:6, from arch/parisc/include/asm/atomic.h:20, from include/linux/atomic.h:4, from include/linux/sysfs.h:20, from include/linux/kobject.h:21, from include/linux/device.h:17, from include/linux/eisa.h:5, from arch/parisc/kernel/pci.c:11: arch/parisc/include/asm/bitops.h: In function ‘set_bit’: arch/parisc/include/asm/bitops.h:82:2: error: implicit declaration of function ‘_atomic_spin_lock_irqsave’ [-Werror=implicit-function-declaration] arch/parisc/include/asm/bitops.h:84:2: error: implicit declaration of function ‘_atomic_spin_unlock_irqrestore’ [-Werror=implicit-function-declaration] Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10parisc: add missing include of asm/page.h to asm/pgtable.hRolf Eike Beer
Fixes these errors: In file included from arch/parisc/include/asm/io.h:5:0, from include/linux/io.h:22, from include/linux/pci.h:54, from arch/parisc/kernel/setup.c:35: arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef] arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef] arch/parisc/include/asm/pgtable.h:92:6: warning: "BITS_PER_PTE_ENTRY" is not defined [-Wundef] Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10parisc: drop include of asm/pdc.h from asm/hardware.hRolf Eike Beer
It seems none of the symbols defined by pdc.h is needed, but it introduces an include loop causing compile errors: In file included from arch/parisc/include/asm/spinlock.h:4:0, from arch/parisc/include/asm/atomic.h:20, from include/linux/atomic.h:4, from arch/parisc/include/asm/bitops.h:56, from include/linux/bitops.h:35, from include/asm-generic/getorder.h:7, from arch/parisc/include/asm/page.h:162, from arch/parisc/include/asm/pdc.h:346, from arch/parisc/include/asm/hardware.h:5, from arch/parisc/kernel/hardware.c:30: arch/parisc/include/asm/processor.h:74:16: error: field ‘cpu_type’ has incomplete type arch/parisc/include/asm/processor.h:77:20: error: field ‘model’ has incomplete type arch/parisc/include/asm/processor.h: In function ‘parisc_requires_coherency’: arch/parisc/include/asm/processor.h:349:36: error: ‘mako’ undeclared (first use in this function) arch/parisc/include/asm/processor.h:349:36: note: each undeclared identifier is reported only once for each function it appears in arch/parisc/include/asm/processor.h:350:30: error: ‘mako2’ undeclared (first use in this function) Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Acked-by: Grant Grundler <grantgrundler@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10parisc: add missing forward declarations in asm/hardware.hRolf Eike Beer
Fixes this warnings: In file included from arch/parisc/include/asm/processor.h:15:0, from arch/parisc/include/asm/spinlock.h:4, from arch/parisc/include/asm/atomic.h:20, from include/linux/atomic.h:4, from arch/parisc/include/asm/bitops.h:11, from include/linux/bitops.h:22, from include/linux/kernel.h:19, from include/linux/sched.h:55, from arch/parisc/kernel/asm-offsets.c:31: arch/parisc/include/asm/hardware.h:106:10: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] arch/parisc/include/asm/hardware.h:106:10: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] arch/parisc/include/asm/hardware.h:116:59: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] arch/parisc/include/asm/hardware.h:118:47: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] arch/parisc/include/asm/hardware.h:119:57: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10parisc: add missing includes in asm/spinlock.hRolf Eike Beer
This leads to this errors: In file included from arch/parisc/include/asm/atomic.h:20:0, from include/linux/atomic.h:4, from arch/parisc/include/asm/bitops.h:56, from include/linux/bitops.h:22, from include/linux/kernel.h:19, from include/linux/sched.h:55, from arch/parisc/kernel/asm-offsets.c:31: arch/parisc/include/asm/spinlock.h: In function ‘arch_spin_is_locked’: arch/parisc/include/asm/spinlock.h:9:2: error: implicit declaration of function ‘__ldcw_align’ [-Werror=implicit-function-declaration] arch/parisc/include/asm/spinlock.h:9:29: warning: initialization makes pointer from integer without a cast [enabled by default] arch/parisc/include/asm/spinlock.h: In function ‘arch_spin_lock_flags’: arch/parisc/include/asm/spinlock.h:22:2: error: implicit declaration of function ‘mb’ [-Werror=implicit-function-declaration] arch/parisc/include/asm/spinlock.h:23:4: warning: assignment makes pointer from integer without a cast [enabled by default] arch/parisc/include/asm/spinlock.h:24:2: error: implicit declaration of function ‘__ldcw’ [-Werror=implicit-function-declaration] Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds
Pull a sparc fix from David Miller. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Do not clobber %g2 in xcall_fetch_glob_regs().
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