- 19 Dec, 2013 14 commits
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Mel Gorman authored
THP migration can fail for a variety of reasons. Avoid flushing the TLB to deal with THP migration races until the copy is ready to start. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
According to documentation on barriers, stores issued before a LOCK can complete after the lock implying that it's possible tlb_flush_pending can be visible after a page table update. As per revised documentation, this patch adds a smp_mb__before_spinlock to guarantee the correct ordering. Signed-off-by: Mel Gorman <mgorman@suse.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Rik van Riel <riel@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>
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Rik van Riel authored
There are a few subtle races, between change_protection_range (used by mprotect and change_prot_numa) on one side, and NUMA page migration and compaction on the other side. The basic race is that there is a time window between when the PTE gets made non-present (PROT_NONE or NUMA), and the TLB is flushed. During that time, a CPU may continue writing to the page. This is fine most of the time, however compaction or the NUMA migration code may come in, and migrate the page away. When that happens, the CPU may continue writing, through the cached translation, to what is no longer the current memory location of the process. This only affects x86, which has a somewhat optimistic pte_accessible. All other architectures appear to be safe, and will either always flush, or flush whenever there is a valid mapping, even with no permissions (SPARC). The basic race looks like this: CPU A CPU B CPU C load TLB entry make entry PTE/PMD_NUMA fault on entry read/write old page start migrating page change PTE/PMD to new page read/write old page [*] flush TLB reload TLB from new entry read/write new page lose data [*] the old page may belong to a new user at this point! The obvious fix is to flush remote TLB entries, by making sure that pte_accessible aware of the fact that PROT_NONE and PROT_NUMA memory may still be accessible if there is a TLB flush pending for the mm. This should fix both NUMA migration and compaction. [mgorman@suse.de: fix build] Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Mel Gorman <mgorman@suse.de> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
do_huge_pmd_numa_page() handles the case where there is parallel THP migration. However, by the time it is checked the NUMA hinting information has already been disrupted. This patch adds an earlier check with some helpers. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
On a protection change it is no longer clear if the page should be still accessible. This patch clears the NUMA hinting fault bits on a protection change. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
Inaccessible VMA should not be trapping NUMA hint faults. Skip them. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
If a PMD changes during a THP migration then migration aborts but the failure path is doing more work than is necessary. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
The anon_vma lock prevents parallel THP splits and any associated complexity that arises when handling splits during THP migration. This patch checks if the lock was successfully acquired and bails from THP migration if it failed for any reason. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
The TLB must be flushed if the PTE is updated but change_pte_range is clearing the PTE while marking PTEs pte_numa without necessarily flushing the TLB if it reinserts the same entry. Without the flush, it's conceivable that two processors have different TLBs for the same virtual address and at the very least it would generate spurious faults. This patch only unmaps the pages in change_pte_range for a full protection change. [riel@redhat.com: write pte_numa pte back to the page tables] Signed-off-by: Mel Gorman <mgorman@suse.de> Signed-off-by: Rik van Riel <riel@redhat.com> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: Chegu Vinod <chegu_vinod@hp.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
If the PMD is flushed then a parallel fault in handle_mm_fault() will enter the pmd_none and do_huge_pmd_anonymous_page() path where it'll attempt to insert a huge zero page. This is wasteful so the patch avoids clearing the PMD when setting pmd_numa. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
On x86, PMD entries are similar to _PAGE_PROTNONE protection and are handled as NUMA hinting faults. The following two page table protection bits are what defines them _PAGE_NUMA:set _PAGE_PRESENT:clear A PMD is considered present if any of the _PAGE_PRESENT, _PAGE_PROTNONE, _PAGE_PSE or _PAGE_NUMA bits are set. If pmdp_invalidate encounters a pmd_numa, it clears the present bit leaving _PAGE_NUMA which will be considered not present by the CPU but present by pmd_present. The existing caller of pmdp_invalidate should handle it but it's an inconsistent state for a PMD. This patch keeps the state consistent when calling pmdp_invalidate. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
MMU notifiers must be called on THP page migration or secondary MMUs will get very confused. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman authored
Base pages are unmapped and flushed from cache and TLB during normal page migration and replaced with a migration entry that causes any parallel NUMA hinting fault or gup to block until migration completes. THP does not unmap pages due to a lack of support for migration entries at a PMD level. This allows races with get_user_pages and get_user_pages_fast which commit 3f926ab9 ("mm: Close races between THP migration and PMD numa clearing") made worse by introducing a pmd_clear_flush(). This patch forces get_user_page (fast and normal) on a pmd_numa page to go through the slow get_user_page path where it will serialise against THP migration and properly account for the NUMA hinting fault. On the migration side the page table lock is taken for each PTE update. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Vivek Goyal authored
Commit 1b3a5d02 ("reboot: move arch/x86 reboot= handling to generic kernel") moved reboot= handling to generic code. In the process it also removed the code in native_machine_shutdown() which are moving reboot process to reboot_cpu/cpu0. I guess that thought must have been that all reboot paths are calling migrate_to_reboot_cpu(), so we don't need this special handling. But kexec reboot path (kernel_kexec()) is not calling migrate_to_reboot_cpu() so above change broke kexec. Now reboot can happen on non-boot cpu and when INIT is sent in second kerneo to bring up BP, it brings down the machine. So start calling migrate_to_reboot_cpu() in kexec reboot path to avoid this problem. Bisected by WANG Chao. Reported-by: Matthew Whitehead <mwhitehe@redhat.com> Reported-by: Dave Young <dyoung@redhat.com> Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Tested-by: Baoquan He <bhe@redhat.com> Tested-by: WANG Chao <chaowang@redhat.com> Acked-by: H. Peter Anvin <hpa@linux.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>
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- 17 Dec, 2013 8 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulatorLinus Torvalds authored
Pull regulator/clk fix from Mark Brown: "Fix s2mps11 build This patch fixes a build failure that appeared in v3.13-rc4 due to an RTC/MFD update merged via -mm" * tag 's2mps11-build' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: mfd: s2mps11: Fix build after regmap field rename in sec-core.c
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixes from Ingo Molnar: "Five self-contained fixlets: - fix clocksource driver build bug - fix two sched_clock() bugs triggering on specific hardware - fix devicetree enumeration bug affecting specific hardware - fix irq handler registration race resulting in boot crash - fix device node refcount bug" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource: dw_apb_timer_of: Fix support for dts binding "snps,dw-apb-timer" clocksource: dw_apb_timer_of: Fix read_sched_clock clocksource: sunxi: Stop timer from ticking before enabling interrupts clocksource: clksrc-of: Do not drop unheld reference on device node clocksource: armada-370-xp: Register sched_clock after the counter reset clocksource: time-efm32: Select CLKSRC_MMIO
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fixes from Ingo Molnar: "Three fixes for scheduler crashes, each triggers in relatively rare, hardware environment dependent situations" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/fair: Rework sched_fair time accounting math64: Add mul_u64_u32_shr() sched: Remove PREEMPT_NEED_RESCHED from generic code sched: Initialize power_orig for overlapping groups
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fix from Ingo Molnar: "An x86/intel event constraint fix" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Fix constraint table end marker bug
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpioLinus Torvalds authored
Pull GPIO fixes from Linus Walleij: "All but one are long-standing bug fixes that are also tagged for stable - Driver bug fixes for SH PFC, TWL4030, MSM and RCAR. - Update the MAINTAINERS" * tag 'gpio-v3.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: rcar: Fix level interrupt handling gpio: msm: Fix irq mask/unmask by writing bits instead of numbers gpio: twl4030: Fix regression for twl gpio LED output sh-pfc: Fix PINMUX_GPIO macro MAINTAINERS: update GPIO maintainers entry
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-clientLinus Torvalds authored
Pull two Ceph fixes from Sage Weil: "One of these is fixing a regression from the d_flags file type patch that went into -rc1 that broke instantiation of inodes and dentries (we were doing dentries first). The other is just an off-by-one corner case" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: Avoid data inconsistency due to d-cache aliasing in readpage() ceph: initialize inode before instantiating dentry
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
Pull powerpc fixes from Ben Herrenschmidt: "Uli's patch fixes a regression in ptrace caused by a mis-merge of a previous LE patch. The rest are all more endian fixes, all fairly trivial, found during testing of 3.13-rc's" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/powernv: Fix OPAL LPC access in Little Endian powerpc/powernv: Fix endian issue in opal_xscom_read powerpc: Fix endian issues in crash dump code powerpc/pseries: Fix endian issues in MSI code powerpc/pseries: Fix PCIE link speed endian issue powerpc/pseries: Fix endian issues in nvram code powerpc/pseries: Fix endian issues in /proc/ppc64/lparcfg powerpc: Fix topology core_id endian issue on LE builds powerpc: Fix endian issue in setup-common.c powerpc: PTRACE_PEEKUSR always returns FPR0
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Josh Boyer authored
If a user calls 'cpupower set --perf-bias 15', the process will end with a SIGSEGV in libc because cpupower-set passes a NULL optarg to the atoi call. This is because the getopt_long structure currently has all of the options as having an optional_argument when they really have a required argument. We change the structure to use required_argument to match the short options and it resolves the issue. This fixes https://bugzilla.redhat.com/show_bug.cgi?id=1000439Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Thomas Renninger <trenn@suse.de> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 16 Dec, 2013 1 commit
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Krzysztof Kozlowski authored
Fix building of s2mps11 regulator and clock drivers after renaming regmap field in struct sec_pmic_dev in commit: - "mfd/rtc: s5m: Fix register updating by adding regmap for RTC" Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
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- 15 Dec, 2013 10 commits
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Linus Torvalds authored
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Matias Bjorling authored
For NUMA systems, initializing the blk-mq layer and using per node hctx. We initialize submit queues to 1, while blk-mq nr_hw_queues is initialized to the number of NUMA nodes. This makes the null_init_hctx function overwrite memory outside of what it allocated. In my case it lead to writing garbage into struct request_queue's mq_map. Signed-off-by: Matias Bjorling <m@bjorling.me> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Sergey Senozhatsky authored
Since commit ec39f64b ("drm/radeon/dpm: Convert to use devm_hwmon_register_with_groups") radeon_hwmon_init() is using hwmon_device_register_with_groups(), which sets `rdev' as a device private driver_data, while hwmon_attributes_visible() and radeon_hwmon_show_temp_thresh() are still waiting for `drm_device'. Fix them by using dev_get_drvdata(), in order to avoid this oops: BUG: unable to handle kernel paging request at 0000000000001e28 IP: [<ffffffffa02ae8b4>] hwmon_attributes_visible+0x18/0x3d [radeon] PGD 15057e067 PUD 151a8e067 PMD 0 Oops: 0000 [#1] PREEMPT SMP Call Trace: internal_create_group+0x114/0x1d9 sysfs_create_group+0xe/0x10 sysfs_create_groups+0x22/0x5f device_add+0x34f/0x501 device_register+0x15/0x18 hwmon_device_register_with_groups+0xb5/0xed radeon_hwmon_init+0x56/0x7c [radeon] radeon_pm_init+0x134/0x7e5 [radeon] radeon_modeset_init+0x75f/0x8ed [radeon] radeon_driver_load_kms+0xc6/0x187 [radeon] drm_dev_register+0xf9/0x1b4 [drm] drm_get_pci_dev+0x98/0x129 [drm] radeon_pci_probe+0xa3/0xac [radeon] pci_device_probe+0x6e/0xcf driver_probe_device+0x98/0x1c4 __driver_attach+0x5c/0x7e bus_for_each_dev+0x7b/0x85 driver_attach+0x19/0x1b bus_add_driver+0x104/0x1ce driver_register+0x89/0xc5 __pci_register_driver+0x58/0x5b drm_pci_init+0x86/0xea [drm] radeon_init+0x97/0x1000 [radeon] do_one_initcall+0x7f/0x117 load_module+0x1583/0x1bb4 SyS_init_module+0xa0/0xaf Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Alexander Deucher <Alexander.Deucher@amd.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Revert CHECKSUM_COMPLETE optimization in pskb_trim_rcsum(), I can't figure out why it breaks things. 2) Fix comparison in netfilter ipset's hash_netnet4_data_equal(), it was basically doing "x == x", from Dave Jones. 3) Freescale FEC driver was DMA mapping the wrong number of bytes, from Sebastian Siewior. 4) Blackhole and prohibit routes in ipv6 were not doing the right thing because their ->input and ->output methods were not being assigned correctly. Now they behave properly like their ipv4 counterparts. From Kamala R. 5) Several drivers advertise the NETIF_F_FRAGLIST capability, but really do not support this feature and will send garbage packets if fed fraglist SKBs. From Eric Dumazet. 6) Fix long standing user triggerable BUG_ON over loopback in RDS protocol stack, from Venkat Venkatsubra. 7) Several not so common code paths can potentially try to invoke packet scheduler actions that might be NULL without checking. Shore things up by either 1) defining a method as mandatory and erroring on registration if that method is NULL 2) defininig a method as optional and the registration function hooks up a default implementation when NULL is seen. From Jamal Hadi Salim. 8) Fix fragment detection in xen-natback driver, from Paul Durrant. 9) Kill dangling enter_memory_pressure method in cg_proto ops, from Eric W Biederman. 10) SKBs that traverse namespaces should have their local_df cleared, from Hannes Frederic Sowa. 11) IOCB file position is not being updated by macvtap_aio_read() and tun_chr_aio_read(). From Zhi Yong Wu. 12) Don't free virtio_net netdev before releasing all of the NAPI instances. From Andrey Vagin. 13) Procfs entry leak in xt_hashlimit, from Sergey Popovich. 14) IPv6 routes that are no cached routes should not count against the garbage collection limits. We had this almost right, but were missing handling addrconf generated routes properly. From Hannes Frederic Sowa. 15) fib{4,6}_rule_suppress() have to consider potentially seeing NULL route info when they are called, from Stefan Tomanek. 16) TUN and MACVTAP have had truncated packet signalling for some time, fix from Jason Wang. 17) Fix use after frrr in __udp4_lib_rcv(), from Eric Dumazet. 18) xen-netback does not interpret the NAPI budget properly for TX work, fix from Paul Durrant. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (132 commits) igb: Fix for issue where values could be too high for udelay function. i40e: fix null dereference xen-netback: fix gso_prefix check net: make neigh_priv_len in struct net_device 16bit instead of 8bit drivers: net: cpsw: fix for cpsw crash when build as modules xen-netback: napi: don't prematurely request a tx event xen-netback: napi: fix abuse of budget sch_tbf: use do_div() for 64-bit divide udp: ipv4: must add synchronization in udp_sk_rx_dst_set() net:fec: remove duplicate lines in comment about errata ERR006358 Revert "8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature" 8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature xen-netback: make sure skb linear area covers checksum field net: smc91x: Fix device tree based configuration so it's usable udp: ipv4: fix potential use after free in udp_v4_early_demux() macvtap: signal truncated packets tun: unbreak truncated packet signalling net: sched: htb: fix the calculation of quantum net: sched: tbf: fix the calculation of max_size micrel: add support for KSZ8041RNLI ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Peter Anvin: "This is a pretty small batch: The biggest single change is to stop using EFI time services on 32-bit platforms. This matches our current behavior on 64-bit platforms as we already had ruled them out there as being too unreliable. Turns out that affects 32-bit platforms, too. One NULL pointer fix for SGI UV. Two minor build fixes, one of which only affects icc and the other which affects icc and future versions or nonstandard default settings of gcc" * 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, efi: Don't use (U)EFI time services on 32 bit x86, build, icc: Remove uninitialized_var() from compiler-intel.h x86/UV: Fix NULL pointer dereference in uv_flush_tlb_others() if the 'nobau' boot option is used x86, build: Pass in additional -mno-mmx, -mno-sse options
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds authored
Pull PCI updates from Bjorn Helgaas: "PCI device hotplug - Move device_del() from pci_stop_dev() to pci_destroy_dev() (Rafael Wysocki) Host bridge drivers - Update maintainers for DesignWare, i.MX6, Armada, R-Car (Bjorn Helgaas) - mvebu: Return 'unsupported' for Interrupt Line and Interrupt Pin (Jason Gunthorpe) Miscellaneous - Avoid unnecessary CPU switch when calling .probe() (Alexander Duyck) - Revert "workqueue: allow work_on_cpu() to be called recursively" (Bjorn Helgaas) - Disable Bus Master only on kexec reboot (Khalid Aziz) - Omit PCI ID macro strings to shorten quirk names for LTO (Michal Marek)" * tag 'pci-v3.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: MAINTAINERS: Add DesignWare, i.MX6, Armada, R-Car PCI host maintainers PCI: Disable Bus Master only on kexec reboot PCI: mvebu: Return 'unsupported' for Interrupt Line and Interrupt Pin PCI: Omit PCI ID macro strings to shorten quirk names PCI: Move device_del() from pci_stop_dev() to pci_destroy_dev() Revert "workqueue: allow work_on_cpu() to be called recursively" PCI: Avoid unnecessary CPU switch when calling driver .probe() method
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-securityLinus Torvalds authored
Pull SELinux fixes from James Morris. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: selinux: process labeled IPsec TCP SYN-ACK packets properly in selinux_ip_postroute() selinux: look for IPsec labels on both inbound and outbound packets selinux: handle TCP SYN-ACK packets correctly in selinux_ip_postroute() selinux: handle TCP SYN-ACK packets correctly in selinux_ip_output() selinux: fix possible memory leak
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Linus Torvalds authored
This reverts commit 102aefdd. Tom London reports that it causes sync() to hang on Fedora rawhide: https://bugzilla.redhat.com/show_bug.cgi?id=1033965 and Josh Boyer bisected it down to this commit. Reverting the commit in the rawhide kernel fixes the problem. Eric Paris root-caused it to incorrect subtype matching in that commit breaking fuse, and has a tentative patch, but by now we're better off retrying this in 3.14 rather than playing with it any more. Reported-by: Tom London <selinux@gmail.com> Bisected-by: Josh Boyer <jwboyer@fedoraproject.org> Acked-by: Eric Paris <eparis@redhat.com> Cc: James Morris <jmorris@namei.org> Cc: Anand Avati <avati@redhat.com> Cc: Paul Moore <paul@paul-moore.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Carolyn Wyborny authored
This patch changes the igb_phy_has_link function to check the value of the parameter before deciding to use udelay or mdelay in order to be sure that the value is not too high for udelay function. CC: stable kernel <stable@vger.kernel.org> # 3.9+ Signed-off-by: Sunil K Pandey <sunil.k.pandey@intel.com> Signed-off-by: Kevin B Smith <kevin.b.smith@intel.com> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jesse Brandeburg authored
If the vsi->tx_rings structure is NULL we don't want to panic. Change-Id: Ic694f043701738c434e8ebe0caf0673f4410dc10 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 14 Dec, 2013 3 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/bp/bpLinus Torvalds authored
Pull EDAC fix from Borislav Petkov: "Silence a compiler warning in sb_edac" * tag 'edac_fixes_for_3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: sb_edac: Shut up compiler warning when EDAC_DEBUG is enabled
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git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "This resolves some further issues with the dma mask changes on ARM which have been found by TI and others, and also some corner cases with the updates to the virtual to physical address translations. Konstantin also found some problems with the unwinder, which now performs tighter verification that the stack is valid while unwinding" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: fix asm/memory.h build error ARM: 7917/1: cacheflush: correctly limit range of memory region being flushed ARM: 7913/1: fix framepointer check in unwind_frame ARM: 7912/1: check stack pointer in get_wchan ARM: 7909/1: mm: Call setup_dma_zone() post early_paging_init() ARM: 7908/1: mm: Fix the arm_dma_limit calculation ARM: another fix for the DMA mapping checks
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds authored
Pull ARC fixes from Vineet Gupta: "These are couple of weeks old already, but I just couldn't get them to you earlier. - couple of fixes for recently added perf code - build time extable sort" * tag 'arc-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: [perf] Fix a few thinkos ARC: Add guard macro to uapi/asm/unistd.h ARC: extable: Enable sorting at build time
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- 13 Dec, 2013 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmLinus Torvalds authored
Pull device mapper fixes from Mike Snitzer: "A set of device-mapper fixes for 3.13. A fix for possible memory corruption during DM table load, fix a possible leak of snapshot space in case of a crash, fix a possible deadlock due to a shared workqueue in the delay target, fix to initialize read-only module parameters that are used to export metrics for dm stats and dm bufio. Quite a few stable fixes were identified for both the thin- provisioning and caching targets as a result of increased regression testing using the device-mapper-test-suite (dmts). The most notable of these are the reference counting fixes for the space map btree that is used by the dm-array interface -- without these the dm-cache metadata will leak, resulting in dm-cache devices running out of metadata blocks. Also, some important fixes related to the thin-provisioning target's transition to read-only mode on error" * tag 'dm-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm array: fix a reference counting bug in shadow_ablock dm space map: disallow decrementing a reference count below zero dm stats: initialize read-only module parameter dm bufio: initialize read-only module parameters dm cache: actually resize cache dm cache: update Documentation for invalidate_cblocks's range syntax dm cache policy mq: fix promotions to occur as expected dm thin: allow pool in read-only mode to transition to read-write mode dm thin: re-establish read-only state when switching to fail mode dm thin: always fallback the pool mode if commit fails dm thin: switch to read-only mode if metadata space is exhausted dm thin: switch to read only mode if a mapping insert fails dm space map metadata: return on failure in sm_metadata_new_block dm table: fail dm_table_create on dm_round_up overflow dm snapshot: avoid snapshot space leak on crash dm delay: fix a possible deadlock due to shared workqueue
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
Pull HID fixes from Jiri Kosina: - Genius Gx Imperator Keyboard regression fix (missing break in case), by Ben Hutchings - duplicate sysfs entry error fix for hid-sensor-hub driver, by Srinivas Pandruvada * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: hid-sensor-hub: fix duplicate sysfs entry error HID: kye: Fix missing break in kye_report_fixup()
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Russell King authored
Jason Gunthorpe reports a build failure when ARM_PATCH_PHYS_VIRT is not defined: In file included from arch/arm/include/asm/page.h:163:0, from include/linux/mm_types.h:16, from include/linux/sched.h:24, from arch/arm/kernel/asm-offsets.c:13: arch/arm/include/asm/memory.h: In function '__virt_to_phys': arch/arm/include/asm/memory.h:244:40: error: 'PHYS_OFFSET' undeclared (first use in this function) arch/arm/include/asm/memory.h:244:40: note: each undeclared identifier is reported only once for each function it appears in arch/arm/include/asm/memory.h: In function '__phys_to_virt': arch/arm/include/asm/memory.h:249:13: error: 'PHYS_OFFSET' undeclared (first use in this function) Fixes: ca5a45c0 ("ARM: mm: use phys_addr_t appropriately in p2v and v2p conversions") Tested-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulatorLinus Torvalds authored
Pull regulator fixes from Mark Brown: "A small set of driver fixes plus one larger core change which changes the way we check to see if we're using DT so that there aren't any races between deciding we're using DT and the regulator subsystem noticing. This makes the new support for substituting a dummy regulator and optional regulators work a lot better on DT systems since it ensures that we don't trigger probe deferral when we shouldn't which was causing bugs in clients" * tag 'regulator-v3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: pfuze100: allow misprogrammed ID regulator: pfuze100: Fix address of FABID regulator: as3722: set the correct current limit regulator: core: Check for DT every time we check full constraints regulator: core: Replace checks of have_full_constraints with a function
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