Skip to main content

Browse the archive

https://github.com/torvalds/linux
23 October 2021, 00:29:24 UTC
sort by:
Revision Author Date Message Commit Date
388f7b1 Linus Torvalds 07 February 2016, 23:38:30 UTC Linux 4.5-rc3 07 February 2016, 23:38:30 UTC
c17dfb0 Linus Torvalds 07 February 2016, 23:23:20 UTC Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "The first real batch of fixes for this release cycle, so there are a few more than usual. Most of these are fixes and tweaks to board support (DT bugfixes, etc). I've also picked up a couple of small cleanups that seemed innocent enough that there was little reason to wait (const/ __initconst and Kconfig deps). Quite a bit of the changes on OMAP were due to fixes to no longer write to rodata from assembly when ARM_KERNMEM_PERMS was enabled, but there were also other fixes. Kirkwood had a bunch of gpio fixes for some boards. OMAP had RTC fixes on OMAP5, and Nomadik had changes to MMC parameters in DT. All in all, mostly the usual mix of various fixes" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (46 commits) ARM: multi_v7_defconfig: enable DW_WATCHDOG ARM: nomadik: fix up SD/MMC DT settings ARM64: tegra: Add chosen node for tegra132 norrin ARM: realview: use "depends on" instead of "if" after prompt ARM: tango: use "depends on" instead of "if" after prompt ARM: tango: use const and __initconst for smp_operations ARM: realview: use const and __initconst for smp_operations bus: uniphier-system-bus: revive tristate prompt arm64: dts: Add missing DMA Abort interrupt to Juno bus: vexpress-config: Add missing of_node_put ARM: dts: am57xx: sbc-am57x: correct Eth PHY settings ARM: dts: am57xx: cl-som-am57x: fix CPSW EMAC pinmux ARM: dts: am57xx: sbc-am57x: fix UART3 pinmux ARM: dts: am57xx: cl-som-am57x: update SPI Flash frequency ARM: dts: am57xx: cl-som-am57x: set HOST mode for USB2 ARM: dts: am57xx: sbc-am57x: fix SB-SOM EEPROM I2C address ARM: dts: LogicPD Torpedo: Revert Duplicative Entries ARM: dts: am437x: pixcir_tangoc: use correct flags for irq types ARM: dts: am4372: fix irq type for arm twd and global timer ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type ... 07 February 2016, 23:23:20 UTC
63fee12 Linus Torvalds 07 February 2016, 23:17:47 UTC Merge branch 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration Pull mailbox fixes from Jassi Brar: - fix getting element from the pcc-channels array by simply indexing into it - prevent building mailbox-test driver for archs that don't have IOMEM * 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration: mailbox: Fix dependencies for !HAS_IOMEM archs mailbox: pcc: fix channel calculation in get_pcc_channel() 07 February 2016, 23:17:47 UTC
46df55c Linus Torvalds 07 February 2016, 06:14:46 UTC Merge tag 'usb-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some USB fixes for 4.5-rc3. The usual, xhci fixes for reported issues, combined with some small gadget driver fixes, and a MAINTAINERS file update. All have been in linux-next with no reported issues" * tag 'usb-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: xhci: harden xhci_find_next_ext_cap against device removal xhci: Fix list corruption in urb dequeue at host removal usb: host: xhci-plat: fix NULL pointer in probe for device tree case usb: xhci-mtk: fix AHB bus hang up caused by roothubs polling usb: xhci-mtk: fix bpkts value of LS/HS periodic eps not behind TT usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Broxton-M platforms usb: xhci: set SSIC port unused only if xhci_suspend succeeds usb: xhci: add a quirk bit for ssic port unused usb: xhci: handle both SSIC ports in PME stuck quirk usb: dwc3: gadget: set the OTG flag in dwc3 gadget driver. Revert "xhci: don't finish a TD if we get a short-transfer event mid TD" MAINTAINERS: fix my email address usb: dwc2: Fix probe problem on bcm2835 Revert "usb: dwc2: Move reset into dwc2_get_hwparams()" usb: musb: ux500: Fix NULL pointer dereference at system PM usb: phy: mxs: declare variable with initialized value usb: phy: msm: fix error handling in probe. 07 February 2016, 06:14:46 UTC
dacd53c Linus Torvalds 07 February 2016, 06:13:16 UTC Merge tag 'staging-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging and IIO driver fixes from Greg KH: "Here are some IIO and staging driver fixes for 4.5-rc3. All of them, except one, are for IIO drivers, and one is for a speakup driver fix caused by some earlier patches, to resolve a reported build failure" * tag 'staging-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: Staging: speakup: Fix allyesconfig build on mn10300 iio: dht11: Use boottime iio: ade7753: avoid uninitialized data iio: pressure: mpl115: fix temperature offset sign iio: imu: Fix dependencies for !HAS_IOMEM archs staging: iio: Fix dependencies for !HAS_IOMEM archs iio: adc: Fix dependencies for !HAS_IOMEM archs iio: inkern: fix a NULL dereference on error iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer. iio: light: acpi-als: Report data as processed iio: dac: mcp4725: set iio name property in sysfs iio: add HAS_IOMEM dependency to VF610_ADC iio: add IIO_TRIGGER dependency to STK8BA50 iio: proximity: lidar: correct return value iio-light: Use a signed return type for ltr501_match_samp_freq() 07 February 2016, 06:13:16 UTC
5af9c2e Linus Torvalds 06 February 2016, 04:20:07 UTC Merge branch 'akpm' (patches from Andrew) Merge fixes from Andrew Morton: "22 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits) epoll: restrict EPOLLEXCLUSIVE to POLLIN and POLLOUT radix-tree: fix oops after radix_tree_iter_retry MAINTAINERS: trim the file triggers for ABI/API dax: dirty inode only if required thp: make deferred_split_scan() work again mm: replace vma_lock_anon_vma with anon_vma_lock_read/write ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup um: asm/page.h: remove the pte_high member from struct pte_t mm, hugetlb: don't require CMA for runtime gigantic pages mm/hugetlb: fix gigantic page initialization/allocation mm: downgrade VM_BUG in isolate_lru_page() to warning mempolicy: do not try to queue pages from !vma_migratable() mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress vmstat: make vmstat_update deferrable mm, vmstat: make quiet_vmstat lighter mm/Kconfig: correct description of DEFERRED_STRUCT_PAGE_INIT memblock: don't mark memblock_phys_mem_size() as __init dump_stack: avoid potential deadlocks mm: validate_mm browse_rb SMP race condition m32r: fix build failure due to SMP and MMU ... 06 February 2016, 04:20:07 UTC
5d6a6a7 Linus Torvalds 06 February 2016, 03:52:57 UTC Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph fixes from Sage Weil: "We have a few wire protocol compatibility fixes, ports of a few recent CRUSH mapping changes, and a couple error path fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: MOSDOpReply v7 encoding libceph: advertise support for TUNABLES5 crush: decode and initialize chooseleaf_stable crush: add chooseleaf_stable tunable crush: ensure take bucket value is valid crush: ensure bucket id is valid before indexing buckets array ceph: fix snap context leak in error path ceph: checking for IS_ERR instead of NULL 06 February 2016, 03:52:57 UTC
9b10882 Linus Torvalds 06 February 2016, 03:38:15 UTC Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "Fixes all over the place: - amdkfd: two static checker fixes - mst: a bunch of static checker and spec/hw interaction fixes - amdgpu: fix Iceland hw properly, and some fiji bugs, along with some write-combining fixes. - exynos: some regression fixes - adv7511: fix some EDID reading issues" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (38 commits) drm/dp/mst: deallocate payload on port destruction drm/dp/mst: Reverse order of MST enable and clearing VC payload table. drm/dp/mst: move GUID storage from mgr, port to only mst branch drm/dp/mst: change MST detection scheme drm/dp/mst: Calculate MST PBN with 31.32 fixed point drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil drm/mst: Add range check for max_payloads during init drm/mst: Don't ignore the MST PBN self-test result drm: fix missing reference counting decrease drm/amdgpu: disable uvd and vce clockgating on Fiji drm/amdgpu: remove exp hardware support from iceland drm/amdgpu: load MEC ucode manually on iceland drm/amdgpu: don't load MEC2 on topaz drm/amdgpu: drop topaz support from gmc8 module drm/amdgpu: pull topaz gmc bits into gmc_v7 drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above drm/amdgpu: iceland use CI based MC IP drm/amdgpu: move gmc7 support out of CIK dependency drm/amdgpu/gfx7: enable cp inst/reg error interrupts drm/amdgpu/gfx8: enable cp inst/reg error interrupts ... 06 February 2016, 03:38:15 UTC
22f6070 Linus Torvalds 06 February 2016, 02:11:23 UTC Merge tag 'pm+acpi-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI fixes from Rafael Wysocki: "These are: a fix for a recently introduced false-positive warnings about PM domain pointers being changed inappropriately (harmless but annoying), an MCH size workaround quirk for one more platform, a compiler warning fix (generic power domains framework), an ACPI LPSS (Intel SoCs) driver fixup and a cleanup of the ACPI CPPC core code. Specifics: - PM core fix to avoid false-positive warnings generated when the pm_domain field is cleared for a device that appears to be bound to a driver (Rafael Wysocki). - New MCH size workaround quirk for Intel Haswell-ULT (Josh Boyer). - Fix for an "unused function" compiler warning in the generic power domains framework (Ulf Hansson). - Fixup for the ACPI driver for Intel SoCs (acpi-lpss) to set the PM domain pointer of a device properly in one place that was overlooked by a recent PM core update (Andy Shevchenko). - Removal of a redundant function declaration in the ACPI CPPC core code (Timur Tabi)" * tag 'pm+acpi-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: Avoid false-positive warnings in dev_pm_domain_set() PM / Domains: Silence compiler warning for an unused function ACPI / CPPC: remove redundant mbox_send_message() declaration ACPI / LPSS: set PM domain via helper setter PNP: Add Haswell-ULT to Intel MCH size workaround 06 February 2016, 02:11:23 UTC
b6a515c Jason Baron 05 February 2016, 23:37:04 UTC epoll: restrict EPOLLEXCLUSIVE to POLLIN and POLLOUT In the current implementation of the EPOLLEXCLUSIVE flag (added for 4.5-rc1), if epoll waiters create different POLL* sets and register them as exclusive against the same target fd, the current implementation will stop waking any further waiters once it finds the first idle waiter. This means that waiters could miss wakeups in certain cases. For example, when we wake up a pipe for reading we do: wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLRDNORM); So if one epoll set or epfd is added to pipe p with POLLIN and a second set epfd2 is added to pipe p with POLLRDNORM, only epfd may receive the wakeup since the current implementation will stop after it finds any intersection of events with a waiter that is blocked in epoll_wait(). We could potentially address this by requiring all epoll waiters that are added to p be required to pass the same set of POLL* events. IE the first EPOLL_CTL_ADD that passes EPOLLEXCLUSIVE establishes the set POLL* flags to be used by any other epfds that are added as EPOLLEXCLUSIVE. However, I think it might be somewhat confusing interface as we would have to reference count the number of users for that set, and so userspace would have to keep track of that count, or we would need a more involved interface. It also adds some shared state that we'd have store somewhere. I don't think anybody will want to bloat __wait_queue_head for this. I think what we could do instead, is to simply restrict EPOLLEXCLUSIVE such that it can only be specified with EPOLLIN and/or EPOLLOUT. So that way if the wakeup includes 'POLLIN' and not 'POLLOUT', we can stop once we hit the first idle waiter that specifies the EPOLLIN bit, since any remaining waiters that only have 'POLLOUT' set wouldn't need to be woken. Likewise, we can do the same thing if 'POLLOUT' is in the wakeup bit set and not 'POLLIN'. If both 'POLLOUT' and 'POLLIN' are set in the wake bit set (there is at least one example of this I saw in fs/pipe.c), then we just wake the entire exclusive list. Having both 'POLLOUT' and 'POLLIN' both set should not be on any performance critical path, so I think that's ok (in fs/pipe.c its in pipe_release()). We also continue to include EPOLLERR and EPOLLHUP by default in any exclusive set. Thus, the user can specify EPOLLERR and/or EPOLLHUP but is not required to do so. Since epoll waiters may be interested in other events as well besides EPOLLIN, EPOLLOUT, EPOLLERR and EPOLLHUP, these can still be added by doing a 'dup' call on the target fd and adding that as one normally would with EPOLL_CTL_ADD. Since I think that the POLLIN and POLLOUT events are what we are interest in balancing, I think that the 'dup' thing could perhaps be added to only one of the waiter threads. However, I think that EPOLLIN, EPOLLOUT, EPOLLERR and EPOLLHUP should be sufficient for the majority of use-cases. Since EPOLLEXCLUSIVE is intended to be used with a target fd shared among multiple epfds, where between 1 and n of the epfds may receive an event, it does not satisfy the semantics of EPOLLONESHOT where only 1 epfd would get an event. Thus, it is not allowed to be specified in conjunction with EPOLLEXCLUSIVE. EPOLL_CTL_MOD is also not allowed if the fd was previously added as EPOLLEXCLUSIVE. It seems with the limited number of flags to not be as interesting, but this could be relaxed at some further point. Signed-off-by: Jason Baron <jbaron@akamai.com> Tested-by: Madars Vitolins <m@silodev.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Al Viro <viro@ftp.linux.org.uk> Cc: Eric Wong <normalperson@yhbt.net> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
7320428 Konstantin Khlebnikov 05 February 2016, 23:37:01 UTC radix-tree: fix oops after radix_tree_iter_retry Helper radix_tree_iter_retry() resets next_index to the current index. In following radix_tree_next_slot current chunk size becomes zero. This isn't checked and it tries to dereference null pointer in slot. Tagged iterator is fine because retry happens only at slot 0 where tag bitmask in iter->tags is filled with single bit. Fixes: 46437f9a554f ("radix-tree: fix race in gang lookup") Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Jeremiah Mahler <jmmahler@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
b14fd33 Michael Kerrisk (man-pages) 05 February 2016, 23:36:58 UTC MAINTAINERS: trim the file triggers for ABI/API Commit ea8f8fc8631 ("MAINTAINERS: add linux-api for review of API/ABI changes") added file triggers for various paths that likely indicated API/ABI changes. However, catching all changes in Documentation/ABI/ and include/uapi/ produces a large volume of mail to linux-api, rather than only API/ABI changes. Drop those two entries, but leave include/linux/syscalls.h and kernel/sys_ni.c to catch syscall-related changes. [josh@joshtriplett.org: redid changelog] Signed-off-by: Michael Kerrisk <mtk.man-pages@gmail.com> Acked-by: Shuah khan <shuahkh@osg.samsung.com> Cc: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
d2b2a28 Dmitry Monakhov 05 February 2016, 23:36:55 UTC dax: dirty inode only if required Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
ae02620 Kirill A. Shutemov 05 February 2016, 23:36:53 UTC thp: make deferred_split_scan() work again We need to iterate over split_queue, not local empty list to get anything split from the shrinker. Fixes: e3ae19535c66 ("thp: limit number of object to scan on deferred_split_scan()") Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
12352d3 Konstantin Khlebnikov 05 February 2016, 23:36:50 UTC mm: replace vma_lock_anon_vma with anon_vma_lock_read/write Sequence vma_lock_anon_vma() - vma_unlock_anon_vma() isn't safe if anon_vma appeared between lock and unlock. We have to check anon_vma first or call anon_vma_prepare() to be sure that it's here. There are only few users of these legacy helpers. Let's get rid of them. This patch fixes anon_vma lock imbalance in validate_mm(). Write lock isn't required here, read lock is enough. And reorders expand_downwards/expand_upwards: security_mmap_addr() and wrapping-around check don't have to be under anon vma lock. Link: https://lkml.kernel.org/r/CACT4Y+Y908EjM2z=706dv4rV6dWtxTLK9nFg9_7DhRMLppBo2g@mail.gmail.com Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@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> 06 February 2016, 02:10:40 UTC
c95a518 xuejiufei 05 February 2016, 23:36:47 UTC ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup When recovery master down, dlm_do_local_recovery_cleanup() only remove the $RECOVERY lock owned by dead node, but do not clear the refmap bit. Which will make umount thread falling in dead loop migrating $RECOVERY to the dead node. Signed-off-by: xuejiufei <xuejiufei@huawei.com> Reviewed-by: Joseph Qi <joseph.qi@huawei.com> Cc: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
012a416 Nicolai Stange 05 February 2016, 23:36:44 UTC um: asm/page.h: remove the pte_high member from struct pte_t Commit 16da306849d0 ("um: kill pfn_t") introduced a compile warning for defconfig (SUBARCH=i386): arch/um/kernel/skas/mmu.c:38:206: warning: right shift count >= width of type [-Wshift-count-overflow] Aforementioned patch changes the definition of the phys_to_pfn() macro from ((pfn_t) ((p) >> PAGE_SHIFT)) to ((p) >> PAGE_SHIFT) This effectively changes the phys_to_pfn() expansion's type from unsigned long long to unsigned long. Through the callchain init_stub_pte() => mk_pte(), the expansion of phys_to_pfn() is (indirectly) fed into the 'phys' argument of the pte_set_val(pte, phys, prot) macro, eventually leading to (pte).pte_high = (phys) >> 32; This results in the warning from above. Since UML only deals with 32 bit addresses, the upper 32 bits from 'phys' used to be always zero anyway. Also, all page protection flags defined by UML don't use any bits beyond bit 9. Since the contents of a PTE are defined within architecture scope only, the ->pte_high member can be safely removed. Remove the ->pte_high member from struct pte_t. Rename ->pte_low to ->pte. Adapt the pte helper macros in arch/um/include/asm/page.h. Noteworthy is the pte_copy() macro where a smp_wmb() gets dropped. This write barrier doesn't seem to be paired with any read barrier though and thus, was useless anyway. Fixes: 16da306849d0 ("um: kill pfn_t") Signed-off-by: Nicolai Stange <nicstange@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Richard Weinberger <richard@nod.at> Cc: Nicolai Stange <nicstange@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
080fe20 Vlastimil Babka 05 February 2016, 23:36:41 UTC mm, hugetlb: don't require CMA for runtime gigantic pages Commit 944d9fec8d7a ("hugetlb: add support for gigantic page allocation at runtime") has added the runtime gigantic page allocation via alloc_contig_range(), making this support available only when CONFIG_CMA is enabled. Because it doesn't depend on MIGRATE_CMA pageblocks and the associated infrastructure, it is possible with few simple adjustments to require only CONFIG_MEMORY_ISOLATION instead of full CONFIG_CMA. After this patch, alloc_contig_range() and related functions are available and used for gigantic pages with just CONFIG_MEMORY_ISOLATION enabled. Note CONFIG_CMA selects CONFIG_MEMORY_ISOLATION. This allows supporting runtime gigantic pages without the CMA-specific checks in page allocator fastpaths. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Cc: Luiz Capitulino <lcapitulino@redhat.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
b4330af Mike Kravetz 05 February 2016, 23:36:38 UTC mm/hugetlb: fix gigantic page initialization/allocation Attempting to preallocate 1G gigantic huge pages at boot time with "hugepagesz=1G hugepages=1" on the kernel command line will prevent booting with the following: kernel BUG at mm/hugetlb.c:1218! When mapcount accounting was reworked, the setting of compound_mapcount_ptr in prep_compound_gigantic_page was overlooked. As a result, the validation of mapcount in free_huge_page fails. The "BUG_ON" checks in free_huge_page were also changed to "VM_BUG_ON_PAGE" to assist with debugging. Fixes: 53f9263baba69 ("mm: rework mapcount accounting to enable 4k mapping of THPs") Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: David Rientjes <rientjes@google.com> Tested-by: Vlastimil Babka <vbabka@suse.cz> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
cf2a82e Kirill A. Shutemov 05 February 2016, 23:36:36 UTC mm: downgrade VM_BUG in isolate_lru_page() to warning Calling isolate_lru_page() is wrong and shouldn't happen, but it not nessesary fatal: the page just will not be isolated if it's not on LRU. Let's downgrade the VM_BUG_ON_PAGE() to WARN_RATELIMIT(). Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
77bf45e Kirill A. Shutemov 05 February 2016, 23:36:33 UTC mempolicy: do not try to queue pages from !vma_migratable() Maybe I miss some point, but I don't see a reason why we try to queue pages from non migratable VMAs. This testcase steps on VM_BUG_ON_PAGE() in isolate_lru_page(): #include <fcntl.h> #include <unistd.h> #include <stdio.h> #include <sys/mman.h> #include <numaif.h> #define SIZE 0x2000 int foo; int main() { int fd; char *p; unsigned long mask = 2; fd = open("/dev/sg0", O_RDWR); p = mmap(NULL, SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); /* Faultin pages */ foo = p[0] + p[0x1000]; mbind(p, SIZE, MPOL_BIND, &mask, 4, MPOL_MF_MOVE | MPOL_MF_STRICT); return 0; } The only case when we can queue pages from such VMA is MPOL_MF_STRICT plus MPOL_MF_MOVE or MPOL_MF_MOVE_ALL for VMA which has pages on LRU, but gfp mask is not sutable for migaration (see mapping_gfp_mask() check in vma_migratable()). That's looks like a bug to me. Let's filter out non-migratable vma at start of queue_pages_test_walk() and go to queue_pages_pte_range() only if MPOL_MF_MOVE or MPOL_MF_MOVE_ALL flag is set. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Michal Hocko <mhocko@suse.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> 06 February 2016, 02:10:40 UTC
564e81a Tetsuo Handa 05 February 2016, 23:36:30 UTC mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress Jan Stancek has reported that system occasionally hanging after "oom01" testcase from LTP triggers OOM. Guessing from a result that there is a kworker thread doing memory allocation and the values between "Node 0 Normal free:" and "Node 0 Normal:" differs when hanging, vmstat is not up-to-date for some reason. According to commit 373ccbe59270 ("mm, vmstat: allow WQ concurrency to discover memory reclaim doesn't make any progress"), it meant to force the kworker thread to take a short sleep, but it by error used schedule_timeout(1). We missed that schedule_timeout() in state TASK_RUNNING doesn't do anything. Fix it by using schedule_timeout_uninterruptible(1) which forces the kworker thread to take a short sleep in order to make sure that vmstat is up-to-date. Fixes: 373ccbe59270 ("mm, vmstat: allow WQ concurrency to discover memory reclaim doesn't make any progress") Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reported-by: Jan Stancek <jstancek@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Tejun Heo <tj@kernel.org> Cc: Cristopher Lameter <clameter@sgi.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Arkadiusz Miskiewicz <arekm@maven.pl> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
ccde8bd Michal Hocko 05 February 2016, 23:36:27 UTC vmstat: make vmstat_update deferrable Commit 0eb77e988032 ("vmstat: make vmstat_updater deferrable again and shut down on idle") made vmstat_shepherd deferrable. vmstat_update itself is still useing standard timer which might interrupt idle task. This is possible because "mm, vmstat: make quiet_vmstat lighter" removed cancel_delayed_work from the quiet_vmstat. Change vmstat_work to use DEFERRABLE_WORK to prevent from pointless wakeups from the idle context. Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Michal Hocko <mhocko@suse.com> Cc: Mike Galbraith <umgwanakikbuti@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
f01f17d Michal Hocko 05 February 2016, 23:36:24 UTC mm, vmstat: make quiet_vmstat lighter Mike has reported a considerable overhead of refresh_cpu_vm_stats from the idle entry during pipe test: 12.89% [kernel] [k] refresh_cpu_vm_stats.isra.12 4.75% [kernel] [k] __schedule 4.70% [kernel] [k] mutex_unlock 3.14% [kernel] [k] __switch_to This is caused by commit 0eb77e988032 ("vmstat: make vmstat_updater deferrable again and shut down on idle") which has placed quiet_vmstat into cpu_idle_loop. The main reason here seems to be that the idle entry has to get over all zones and perform atomic operations for each vmstat entry even though there might be no per cpu diffs. This is a pointless overhead for _each_ idle entry. Make sure that quiet_vmstat is as light as possible. First of all it doesn't make any sense to do any local sync if the current cpu is already set in oncpu_stat_off because vmstat_update puts itself there only if there is nothing to do. Then we can check need_update which should be a cheap way to check for potential per-cpu diffs and only then do refresh_cpu_vm_stats. The original patch also did cancel_delayed_work which we are not doing here. There are two reasons for that. Firstly cancel_delayed_work from idle context will blow up on RT kernels (reported by Mike): CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.5.0-rt3 #7 Hardware name: MEDION MS-7848/MS-7848, BIOS M7848W08.20C 09/23/2013 Call Trace: dump_stack+0x49/0x67 ___might_sleep+0xf5/0x180 rt_spin_lock+0x20/0x50 try_to_grab_pending+0x69/0x240 cancel_delayed_work+0x26/0xe0 quiet_vmstat+0x75/0xa0 cpu_idle_loop+0x38/0x3e0 cpu_startup_entry+0x13/0x20 start_secondary+0x114/0x140 And secondly, even on !RT kernels it might add some non trivial overhead which is not necessary. Even if the vmstat worker wakes up and preempts idle then it will be most likely a single shot noop because the stats were already synced and so it would end up on the oncpu_stat_off anyway. We just need to teach both vmstat_shepherd and vmstat_update to stop scheduling the worker if there is nothing to do. [mgalbraith@suse.de: cancel pending work of the cpu_stat_off CPU] Signed-off-by: Michal Hocko <mhocko@suse.com> Reported-by: Mike Galbraith <umgwanakikbuti@gmail.com> Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Mike Galbraith <mgalbraith@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
1ce2210 Vlastimil Babka 05 February 2016, 23:36:21 UTC mm/Kconfig: correct description of DEFERRED_STRUCT_PAGE_INIT The description mentions kswapd threads, while the deferred struct page initialization is actually done by one-off "pgdatinitX" threads. Fix the description so that potentially users are not confused about pgdatinit threads using CPU after boot instead of kswapd. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
1f1ffb8 David Gibson 05 February 2016, 23:36:19 UTC memblock: don't mark memblock_phys_mem_size() as __init At the moment memblock_phys_mem_size() is marked as __init, and so is discarded after boot. This is different from most of the memblock functions which are marked __init_memblock, and are only discarded after boot if memory hotplug is not configured. To allow for upcoming code which will need memblock_phys_mem_size() in the hotplug path, change it from __init to __init_memblock. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
d7ce369 Eric Dumazet 05 February 2016, 23:36:16 UTC dump_stack: avoid potential deadlocks Some servers experienced fatal deadlocks because of a combination of bugs, leading to multiple cpus calling dump_stack(). The checksumming bug was fixed in commit 34ae6a1aa054 ("ipv6: update skb->csum when CE mark is propagated"). The second problem is a faulty locking in dump_stack() CPU1 runs in process context and calls dump_stack(), grabs dump_lock. CPU2 receives a TCP packet under softirq, grabs socket spinlock, and call dump_stack() from netdev_rx_csum_fault(). dump_stack() spins on atomic_cmpxchg(&dump_lock, -1, 2), since dump_lock is owned by CPU1 While dumping its stack, CPU1 is interrupted by a softirq, and happens to process a packet for the TCP socket locked by CPU2. CPU1 spins forever in spin_lock() : deadlock Stack trace on CPU1 looked like : NMI backtrace for cpu 1 RIP: _raw_spin_lock+0x25/0x30 ... Call Trace: <IRQ> tcp_v6_rcv+0x243/0x620 ip6_input_finish+0x11f/0x330 ip6_input+0x38/0x40 ip6_rcv_finish+0x3c/0x90 ipv6_rcv+0x2a9/0x500 process_backlog+0x461/0xaa0 net_rx_action+0x147/0x430 __do_softirq+0x167/0x2d0 call_softirq+0x1c/0x30 do_softirq+0x3f/0x80 irq_exit+0x6e/0xc0 smp_call_function_single_interrupt+0x35/0x40 call_function_single_interrupt+0x6a/0x70 <EOI> printk+0x4d/0x4f printk_address+0x31/0x33 print_trace_address+0x33/0x3c print_context_stack+0x7f/0x119 dump_trace+0x26b/0x28e show_trace_log_lvl+0x4f/0x5c show_stack_log_lvl+0x104/0x113 show_stack+0x42/0x44 dump_stack+0x46/0x58 netdev_rx_csum_fault+0x38/0x3c __skb_checksum_complete_head+0x6e/0x80 __skb_checksum_complete+0x11/0x20 tcp_rcv_established+0x2bd5/0x2fd0 tcp_v6_do_rcv+0x13c/0x620 sk_backlog_rcv+0x15/0x30 release_sock+0xd2/0x150 tcp_recvmsg+0x1c1/0xfc0 inet_recvmsg+0x7d/0x90 sock_recvmsg+0xaf/0xe0 ___sys_recvmsg+0x111/0x3b0 SyS_recvmsg+0x5c/0xb0 system_call_fastpath+0x16/0x1b Fixes: b58d977432c8 ("dump_stack: serialize the output from dump_stack()") Signed-off-by: Eric Dumazet <edumazet@google.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> 06 February 2016, 02:10:40 UTC
acf128d Andrea Arcangeli 05 February 2016, 23:36:13 UTC mm: validate_mm browse_rb SMP race condition The mmap_sem for reading in validate_mm called from expand_stack is not enough to prevent the argumented rbtree rb_subtree_gap information to change from under us because expand_stack may be running from other threads concurrently which will hold the mmap_sem for reading too. The argumented rbtree is updated with vma_gap_update under the page_table_lock so use it in browse_rb() too to avoid false positives. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Dmitry Vyukov <dvyukov@google.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
af1ddcb Sudip Mukherjee 05 February 2016, 23:36:10 UTC m32r: fix build failure due to SMP and MMU One of the randconfig build failed with the error: arch/m32r/kernel/smp.c: In function 'smp_flush_tlb_mm': arch/m32r/kernel/smp.c:283:20: error: subscripted value is neither array nor pointer nor vector mmc = &mm->context[cpu_id]; ^ arch/m32r/kernel/smp.c: In function 'smp_flush_tlb_page': arch/m32r/kernel/smp.c:353:20: error: subscripted value is neither array nor pointer nor vector mmc = &mm->context[cpu_id]; ^ arch/m32r/kernel/smp.c: In function 'smp_invalidate_interrupt': arch/m32r/kernel/smp.c:479:41: error: subscripted value is neither array nor pointer nor vector unsigned long *mmc = &flush_mm->context[cpu_id]; It turned out that CONFIG_SMP was defined but CONFIG_MMU was not defined. But arch/m32r/include/asm/mmu.h only defines mm_context_t as an array when both CONFIG_SMP and CONFIG_MMU are defined. And arch/m32r/kernel/smp.c is always using context as an array. So without MMU SMP can not work. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
9c5a05b Ross Zwisler 05 February 2016, 23:36:08 UTC block: fix pfn_mkwrite() DAX fault handler Previously the pfn_mkwrite() fault handler for raw block devices called bldev_dax_fault() -> __dax_fault() to do a full DAX page fault. Really what the pfn_mkwrite() fault handler needs to do is call dax_pfn_mkwrite() to make sure that the radix tree entry for the given PTE is marked as dirty so that a follow-up fsync or msync call will flush it durably to media. Fixes: 5a023cdba50c ("block: enable dax for raw block devices") Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Chinner <david@fromorbit.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
823dd32 Sasha Levin 05 February 2016, 23:36:05 UTC signals: avoid random wakeups in sigsuspend() A random wakeup can get us out of sigsuspend() without TIF_SIGPENDING being set. Avoid that by making sure we were signaled, like sys_pause() does. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 06 February 2016, 02:10:40 UTC
79e2f8d Rafael J. Wysocki 05 February 2016, 23:34:01 UTC Merge branches 'pm-core' and 'pm-domains' * pm-core: PM: Avoid false-positive warnings in dev_pm_domain_set() ACPI / LPSS: set PM domain via helper setter * pm-domains: PM / Domains: Silence compiler warning for an unused function 05 February 2016, 23:34:01 UTC
9298230 Rafael J. Wysocki 05 February 2016, 23:33:52 UTC Merge branches 'pnp' and 'acpi-cppc' * pnp: PNP: Add Haswell-ULT to Intel MCH size workaround * acpi-cppc: ACPI / CPPC: remove redundant mbox_send_message() declaration 05 February 2016, 23:33:52 UTC
dd6f86a Linus Torvalds 05 February 2016, 20:46:38 UTC Merge tag 'media/v4.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: - vb2: fix a vb2_thread regression and DVB read() breakages - vsp1: fix compilation and links creation - s5k6a3: Fix VIDIOC_SUBDEV_G_FMT ioctl for TRY format - exynos4-is: fix a build issue, format negotiation and sensor detection - Fix a regression with pvrusb2 and ir-kbd-i2c - atmel-isi: fix debug message which only show the first format - tda1004x: fix a tuning bug if G_PROPERTY is called too early - saa7134-alsa: fix a bug at device unbinding/driver removal - Fix build of one driver if !HAS_DMA - soc_camera: cleanup control device on async_unbind * tag 'media/v4.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] saa7134-alsa: Only frees registered sound cards [media] vb2-core: call threadio->fnc() if !VB2_BUF_STATE_ERROR [media] vb2: fix nasty vb2_thread regression [media] tda1004x: only update the frontend properties if locked [media] media: i2c: Don't export ir-kbd-i2c module alias [media] exynos4-is: make VIDEO_SAMSUNG_EXYNOS4_IS tristate [media] media: Kconfig: add dependency of HAS_DMA [media] exynos4-is: Wait for 100us before opening sensor [media] exynos4-is: Open shouldn't fail when sensor entity is not linked [media] s5k6a3: Fix VIDIOC_SUBDEV_G_FMT ioctl for TRY format [media] exynos4-is: fix a format string bug [media] drivers/media: vsp1_video: fix compile error [media] atmel-isi: fix debug message which only show the first format [media] soc_camera: cleanup control device on async_unbind [media] v4l: vsp1: Fix wrong entities links creation 05 February 2016, 20:46:38 UTC
ea5a273 Linus Torvalds 05 February 2016, 20:34:44 UTC Merge tag 'sound-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "This was a busy week and I had to prepare a pile of duct tapes for the bugs reported by syzkaller fuzzer in wide range of ALSA core APIs: timer, rawmidi, sequencer, and PCM OSS emulation. Let's see how many other holes we need to plug. Besides that, a few usual boring stuff, HD- and USB-audio quirks, have been added" * tag 'sound-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: timer: Fix leftover link at closing ALSA: seq: Fix lockdep warnings due to double mutex locks ALSA: rawmidi: Fix race at copying & updating the position ALSA: rawmidi: Make snd_rawmidi_transmit() race-free ALSA: hda - Add fixup for Mac Mini 7,1 model ALSA: hda/realtek - Support headset mode for ALC225 ALSA: hda/realtek - Support Dell headset mode for ALC225 ALSA: hda/realtek - New codec support of ALC225 ALSA: timer: Sync timer deletion at closing the system timer ALSA: timer: Fix link corruption due to double start or stop ALSA: seq: Fix yet another races among ALSA timer accesses ALSA: pcm: Fix potential deadlock in OSS emulation ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check ALSA: seq: Fix race at closing in virmidi driver ALSA: emu10k1: correctly handling failed thread creation ALSA: usb-audio: Add quirk for Microsoft LifeCam HD-6000 ALSA: usb-audio: Add native DSD support for PS Audio NuWave DAC ALSA: usb-audio: Fix OPPO HA-1 vendor ID 05 February 2016, 20:34:44 UTC
ed1741b Linus Torvalds 05 February 2016, 19:20:15 UTC Merge git://www.linux-watchdog.org/linux-watchdog Pull watchdog fixes from Wim Van Sebroeck: "This fixes several Kconfig dependencies, a compilation warning in pcwd_usb, a failure to abort the sp805 wdt after a ping and the max63xx wdt's MODULE_LICENSE" * git://www.linux-watchdog.org/linux-watchdog: watchdog: Fix dependencies for !HAS_IOMEM archs watchdog: imgdpc: select WATCHDOG_CORE watchdog: tango: rename ARCH_TANGOX to ARCH_TANGO watchdog: pcwd_usb: fix compilation warning watchdog: sp805: ping fails to abort wdt reset watchdog: max63xx: make module's license marker match the header 05 February 2016, 19:20:15 UTC
6739b3d Dave Airlie 05 February 2016, 05:24:17 UTC Merge branch 'drm-fixes-mst' of git://people.freedesktop.org/~airlied/linux into drm-fixes displayport multistream fixes from AMD. * 'drm-fixes-mst' of git://people.freedesktop.org/~airlied/linux: drm/dp/mst: deallocate payload on port destruction drm/dp/mst: Reverse order of MST enable and clearing VC payload table. drm/dp/mst: move GUID storage from mgr, port to only mst branch drm/dp/mst: change MST detection scheme drm/dp/mst: Calculate MST PBN with 31.32 fixed point drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil drm/mst: Add range check for max_payloads during init drm/mst: Don't ignore the MST PBN self-test result drm: fix missing reference counting decrease 05 February 2016, 05:24:17 UTC
91a25e4 Mykola Lysenko 27 January 2016, 14:39:36 UTC drm/dp/mst: deallocate payload on port destruction This is needed to properly deallocate port payload after downstream branch get unplugged. In order to do this unplugged MST topology should be preserved, to find first alive port on path to unplugged MST topology, and send payload deallocation request to branch device of found port. For this mstb and port kref's are used in reversed order to track when port and branch memory could be freed. Added additional functions to find appropriate mstb as described above. Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> 05 February 2016, 05:23:49 UTC
c175cd1 Andrey Grodzovsky 22 January 2016, 22:07:29 UTC drm/dp/mst: Reverse order of MST enable and clearing VC payload table. On DELL U3014 if you clear the table before enabling MST it sometimes hangs the receiver. Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Cc: stable@vger.kernel.org Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 05 February 2016, 05:23:49 UTC
5e93b82 Hersen Wu 22 January 2016, 22:07:28 UTC drm/dp/mst: move GUID storage from mgr, port to only mst branch Previous implementation does not handle case below: boot up one MST branch to DP connector of ASIC. After boot up, hot plug 2nd MST branch to DP output of 1st MST, GUID is not created for 2nd MST branch. When downstream port of 2nd MST branch send upstream request, it fails because 2nd MST branch GUID is not available. New Implementation: only create GUID for MST branch and save it within Branch. Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Cc: stable@vger.kernel.org Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 05 February 2016, 05:23:49 UTC
cfcfa08 Mykola Lysenko 22 January 2016, 22:07:27 UTC drm/dp/mst: change MST detection scheme 1. Get edid for all connected MST displays, not only on logical ports, in the same thread as MST topology detection is done: There are displays that have branches inside w/o logical ports. So in case another SST display connected downstream system can end-up in situation when 3 DOWN requests sent: two for ‘remote i2c read’ and one for ‘enum path resources’, making slots full. 2. Call notification callback in one place in the end of topology discovery/update: This is done to reduce number of events sent to userspace in case complex topology discovery is going, adding multiple number of connectors; 3. Remove notification callback call from short pulse interrupt processing function: This is done in order not to block interrupt processing function, in case any MST request will be made from it. Notification will be send from topology discovery/update work item. Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Cc: stable@vger.kernel.org Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 05 February 2016, 05:23:49 UTC
a9ebb3e Harry Wentland 22 January 2016, 22:07:26 UTC drm/dp/mst: Calculate MST PBN with 31.32 fixed point Our PBN value overflows the 20 bits integer part of the 20.12 fixed point. We need to use 31.32 fixed point to avoid this. This happens with display clocks larger than 293122 (at 24 bpp), which we see with the Sharp (and similar) 4k tiled displays. Signed-off-by: Harry Wentland <harry.wentland@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 05 February 2016, 05:23:49 UTC
64566b5 Harry Wentland 22 January 2016, 22:07:25 UTC drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil drm_fixp_from_fraction allows us to create a fixed point directly from a fraction, rather than creating fixed point values and dividing later. This avoids overflow of our 64 bit value for large numbers. drm_fixp2int_ceil allows us to return the ceiling of our fixed point value. [airlied: squash Jordan's fix] 32-bit-build-fix: Jordan Lazare <Jordan.Lazare@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 05 February 2016, 05:23:48 UTC
4d6a10d Imre Deak 29 January 2016, 12:44:29 UTC drm/mst: Add range check for max_payloads during init max_payload is limited by the space we have in drm_dp_mst_topology_mgr::vcpi_mask,payload_mask. We need to track max_payloads+1 IDs in these masks, see drm_dp_mst_assign_payload_id(). Add a sanity check for this. Caught by coverity. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: David Weinehall <david.weinehall@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 05 February 2016, 05:23:48 UTC
441388a Imre Deak 29 January 2016, 12:44:28 UTC drm/mst: Don't ignore the MST PBN self-test result Otherwise this call would have no effect. Caught by Coverity. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: David Weinehall <david.weinehall@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 05 February 2016, 05:23:48 UTC
dabe195 Insu Yun 01 February 2016, 16:08:29 UTC drm: fix missing reference counting decrease In drm_dp_mst_allocate_vcpi, it returns true in two paths, but in one path, there is no reference couting decrease. Signed-off-by: Insu Yun <wuninsu@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> 05 February 2016, 05:23:48 UTC
c745884 Dave Airlie 05 February 2016, 04:48:36 UTC Merge branch 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux into drm-fixes - fix and enable iceland/topaz support - handle WC on platforms that don't support it * 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux: drm/amdgpu: disable uvd and vce clockgating on Fiji drm/amdgpu: remove exp hardware support from iceland drm/amdgpu: load MEC ucode manually on iceland drm/amdgpu: don't load MEC2 on topaz drm/amdgpu: drop topaz support from gmc8 module drm/amdgpu: pull topaz gmc bits into gmc_v7 drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above drm/amdgpu: iceland use CI based MC IP drm/amdgpu: move gmc7 support out of CIK dependency drm/amdgpu/gfx7: enable cp inst/reg error interrupts drm/amdgpu/gfx8: enable cp inst/reg error interrupts drm/amdgpu: mask out WC from BO on unsupported arches drm/radeon: mask out WC from BO on unsupported arches drm: add helper to check for wc memory support drm/amdgpu: no need to load MC firmware on fiji 05 February 2016, 04:48:36 UTC
ec71f12 Dave Airlie 05 February 2016, 04:47:24 UTC Merge tag 'drm-amdkfd-fixes-2016-01-28' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes two static checker fixes. * tag 'drm-amdkfd-fixes-2016-01-28' of git://people.freedesktop.org/~gabbayo/linux: drm/amdkfd: Remove unnecessary cast in kfree drm/amdgpu: fix non-ANSI declaration of amdgpu_amdkfd_gfx_*_get_functions() 05 February 2016, 04:47:24 UTC
07c8fed Dave Airlie 05 February 2016, 04:45:44 UTC Merge branch 'exynos-drm-fixes' of git://git.kernel.org:/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes Just regression fixes. - Fix build warning and error without PM configuration - Fix no display issue on Snow board reported by Michal Suchanek, http://www.spinics.net/lists/dri-devel/msg99473.html * 'exynos-drm-fixes' of git://git.kernel.org:/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos: dp: Fix panel and bridge lookup logic drm: exynos: make PM functions as __maybe_unused drm/exynos: fix building without CONFIG_PM_SLEEP 05 February 2016, 04:45:44 UTC
c6b431c Dave Airlie 05 February 2016, 04:44:16 UTC Merge branch 'drm/adv7511' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into drm-fixes misc adv7511 edid reading fixes. * 'drm/adv7511' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: drm: adv7511: it's HPD, not HDP drm: adv7511: mark ADV7511_REG_EDID_READ_CTRL volatile drm: adv7511: really enable interrupts for EDID detection 05 February 2016, 04:44:16 UTC
87d0f93 Dave Airlie 05 February 2016, 04:43:35 UTC Merge tag 'drm-intel-fixes-2016-02-04' of git://anongit.freedesktop.org/drm-intel into drm-fixes misc i915 fixes. * tag 'drm-intel-fixes-2016-02-04' of git://anongit.freedesktop.org/drm-intel: drm/i915: refine qemu south bridge detection drm/i915: Remove select to deleted STOP_MACHINE from Kconfig drm/i915: Fix NULL plane->fb oops on SKL drm/i915: Don't reject primary plane windowing with color keying enabled on SKL+ drm/i915/dp: fall back to 18 bpp when sink capability is unknown drm/i915: Make sure DC writes are coherent on flush. 05 February 2016, 04:43:35 UTC
89140fd Joe Lawrence 03 February 2016, 17:51:12 UTC xhci: harden xhci_find_next_ext_cap against device removal xhci_find_next_ext_cap doesn't check for PCI hotplug removal and may use the PCI master abort bit pattern (~0) to calculate a new PCI address offset to read/write. The has lead to reproducable crashes when testing surprise removal during device initialization on a Stratus platform, at least after commit d5ddcdf4d672 ("xhci: rework xhci extended capability list parsing functions"). The crash is repeatable on a Stratus platform when injecting hardware faults to induce xHCI host controller hotplug during driver initialization. If a PCI read in xhci_find_next_ext_cap returns the master abort pattern, quirk_usb_handoff_xhci may start using a bogus ext_cap_offset to start searching more bogus PCI addresses. Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 05 February 2016, 01:00:10 UTC
df48ab3 Linus Torvalds 04 February 2016, 22:09:55 UTC Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "Nothing particularly interesting here, but all important fixes nonetheless: - Add missing PAN toggling in the futex code - Fix missing #include that briefly caused issues in -next - Allow changing of vmalloc permissions with set_memory_* (used by bpf)" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: asm: Explicitly include linux/personality.h in asm/page.h arm64: futex.h: Add missing PAN toggling arm64: allow vmalloc regions to be set with set_memory_* 04 February 2016, 22:09:55 UTC
381a65c Dinh Nguyen 03 February 2016, 17:03:06 UTC ARM: multi_v7_defconfig: enable DW_WATCHDOG The watchdog timer on the SoCFPGA platform is the Synopsys Designware watchdog. Enable CONFIG_DW_WATCHDOG for the driver to get built. Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Olof Johansson <olof@lixom.net> 04 February 2016, 21:25:33 UTC
418d551 Linus Walleij 01 February 2016, 13:18:57 UTC ARM: nomadik: fix up SD/MMC DT settings The DTSI file for the Nomadik does not properly specify how the PL180 levelshifter is connected: the Nomadik actually needs all the five st,sig-dir-* flags set to properly control all lines out. Further this board supports full power cycling of the card, and since this variant has no hardware clock gating, it needs a ridiculously low frequency setting to keep up with the ever overflowing FIFO. The pin configuration set-up is a bit of a mystery, because of course these pins are a mix of inputs and outputs. However the reference implementation sets all pins to "output" with unspecified initial value, so let's do that here as well. Cc: stable@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net> 04 February 2016, 21:24:08 UTC
207b08b Greg Kroah-Hartman 04 February 2016, 21:07:23 UTC Merge tag 'fixes-for-v4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus Felipe writes: usb: fixes for v4.5-rc2 DWC3 got a fix for OTG Certification, DWC2 has two fixes for regressions on RasPI, MUSB has a NULL pointer dereference fix for ux500 platforms and two PHYs (MSM and MXS) got some minor fixes. While at that, I'm also adding a fix to my email address which has changed recently. 04 February 2016, 21:07:23 UTC
5787c25 Linus Torvalds 04 February 2016, 19:50:15 UTC Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md Pull MD fix from Shaohua Li: "As you know, Neil steps down from MD. I'm looking after it. Here are some patches queued. A build fix from Gayatri and several trival patches from me" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: md-cluster: delete useless code md-cluster: fix missing memory free raid6/algos.c : bug fix : Add the missing definitions to the pq.h file MD: add myself as MD maintainer MD: rename some functions 04 February 2016, 19:50:15 UTC
04d740d Linus Torvalds 04 February 2016, 19:18:22 UTC Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: - One minor fix to the ib core - Four minor fixes to the Mellanox drivers - Remove three deprecated drivers from staging/rdma now that all of Greg's queued changes to them are merged * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: staging/rdma: remove deprecated ipath driver staging/rdma: remove deprecated ehca driver staging/rdma: remove deprecated amso1100 driver IB/core: Set correct payload length for RoCEv2 over IPv6 IB/mlx5: Use MLX5_GET to correctly get end of padding mode IB/mlx5: Fix use of null pointer PD IB/mlx5: Fix reqlen validation in mlx5_ib_alloc_ucontext IB/mlx5: Add CREATE_CQ and CREATE_QP to uverbs_ex_cmd_mask 04 February 2016, 19:18:22 UTC
ac75fe5 Mauro Carvalho Chehab 04 February 2016, 17:59:43 UTC [media] saa7134-alsa: Only frees registered sound cards That prevents this bug: [ 2382.269496] BUG: unable to handle kernel NULL pointer dereference at 0000000000000540 [ 2382.270013] IP: [<ffffffffa01fe616>] snd_card_free+0x36/0x70 [snd] [ 2382.270013] PGD 0 [ 2382.270013] Oops: 0002 [#1] SMP [ 2382.270013] Modules linked in: saa7134_alsa(-) tda1004x saa7134_dvb videobuf2_dvb dvb_core tda827x tda8290 tuner saa7134 tveeprom videobuf2_dma_sg videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common videodev media auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc tun bridge stp llc ebtables ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack it87 hwmon_vid snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_seq pcspkr i2c_i801 snd_seq_device snd_pcm snd_timer lpc_ich snd mfd_core soundcore binfmt_misc i915 video i2c_algo_bit drm_kms_helper drm r8169 ata_generic serio_raw pata_acpi mii i2c_core [last unloaded: videobuf2_memops] [ 2382.270013] CPU: 0 PID: 4899 Comm: rmmod Not tainted 4.5.0-rc1+ #4 [ 2382.270013] Hardware name: PCCHIPS P17G/P17G, BIOS 080012 05/14/2008 [ 2382.270013] task: ffff880039c38000 ti: ffff88003c764000 task.ti: ffff88003c764000 [ 2382.270013] RIP: 0010:[<ffffffffa01fe616>] [<ffffffffa01fe616>] snd_card_free+0x36/0x70 [snd] [ 2382.270013] RSP: 0018:ffff88003c767ea0 EFLAGS: 00010286 [ 2382.270013] RAX: ffff88003c767eb8 RBX: 0000000000000000 RCX: 0000000000006260 [ 2382.270013] RDX: ffffffffa020a060 RSI: ffffffffa0206de1 RDI: ffff88003c767eb0 [ 2382.270013] RBP: ffff88003c767ed8 R08: 0000000000019960 R09: ffffffff811a5412 [ 2382.270013] R10: ffffea0000d7c200 R11: 0000000000000000 R12: ffff88003c767ea8 [ 2382.270013] R13: 00007ffe760617f7 R14: 0000000000000000 R15: 0000557625d7f1e0 [ 2382.270013] FS: 00007f80bb1c0700(0000) GS:ffff88003f400000(0000) knlGS:0000000000000000 [ 2382.270013] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 2382.270013] CR2: 0000000000000540 CR3: 000000003c00f000 CR4: 00000000000006f0 [ 2382.270013] Stack: [ 2382.270013] 000000003c767ed8 ffffffff00000000 ffff880000000000 ffff88003c767eb8 [ 2382.270013] ffff88003c767eb8 ffffffffa049a890 00007ffe76060060 ffff88003c767ef0 [ 2382.270013] ffffffffa049889d ffffffffa049a500 ffff88003c767f48 ffffffff8111079c [ 2382.270013] Call Trace: [ 2382.270013] [<ffffffffa049889d>] saa7134_alsa_exit+0x1d/0x780 [saa7134_alsa] [ 2382.270013] [<ffffffff8111079c>] SyS_delete_module+0x19c/0x1f0 [ 2382.270013] [<ffffffff8170fc2e>] entry_SYSCALL_64_fastpath+0x12/0x71 [ 2382.270013] Code: 20 a0 48 c7 c6 e1 6d 20 a0 48 89 e5 41 54 53 4c 8d 65 d0 48 89 fb 48 83 ec 28 c7 45 d0 00 00 00 00 49 8d 7c 24 08 e8 7a 55 ed e0 <4c> 89 a3 40 05 00 00 48 89 df e8 eb fd ff ff 85 c0 75 1a 48 8d [ 2382.270013] RIP [<ffffffffa01fe616>] snd_card_free+0x36/0x70 [snd] [ 2382.270013] RSP <ffff88003c767ea0> [ 2382.270013] CR2: 0000000000000540 Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> 04 February 2016, 18:26:10 UTC
b0b31a8 Ilya Dryomov 03 February 2016, 14:25:48 UTC libceph: MOSDOpReply v7 encoding Empty request_redirect_t (struct ceph_request_redirect in the kernel client) is now encoded with a bool. NEW_OSDOPREPLY_ENCODING feature bit overlaps with already supported CRUSH_TUNABLES5. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com> 04 February 2016, 17:26:08 UTC
97db9a8 Ilya Dryomov 01 February 2016, 16:08:33 UTC libceph: advertise support for TUNABLES5 Add TUNABLES5 feature (chooseleaf_stable tunable) to a set of features supported by default. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com> 04 February 2016, 17:26:04 UTC
b9b519b Ilya Dryomov 01 February 2016, 15:57:16 UTC crush: decode and initialize chooseleaf_stable Also add missing \n while at it. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com> 04 February 2016, 17:25:58 UTC
dc6ae6d Ilya Dryomov 31 January 2016, 13:36:07 UTC crush: add chooseleaf_stable tunable Add a tunable to fix the bug that chooseleaf may cause unnecessary pg migrations when some device fails. Reflects ceph.git commit fdb3f664448e80d984470f32f04e2e6f03ab52ec. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com> 04 February 2016, 17:25:55 UTC
56a4f30 Ilya Dryomov 31 January 2016, 13:36:05 UTC crush: ensure take bucket value is valid Ensure that the take argument is a valid bucket ID before indexing the buckets array. Reflects ceph.git commit 93ec538e8a667699876b72459b8ad78966d89c61. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com> 04 February 2016, 17:25:50 UTC
f224a69 Ilya Dryomov 31 January 2016, 13:35:59 UTC crush: ensure bucket id is valid before indexing buckets array We were indexing the buckets array without verifying the index was within the [0,max_buckets) range. This could happen because a multistep rule does not have enough buckets and has CRUSH_ITEM_NONE for an intermediate result, which would feed in CRUSH_ITEM_NONE and make us crash. Reflects ceph.git commit 976a24a326da8931e689ee22fce35feab5b67b76. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com> 04 February 2016, 17:25:23 UTC
db6aed7 Yan, Zheng 26 January 2016, 15:05:37 UTC ceph: fix snap context leak in error path Signed-off-by: Yan, Zheng <zyan@redhat.com> 04 February 2016, 17:25:15 UTC
1418bf0 Dan Carpenter 26 January 2016, 09:24:44 UTC ceph: checking for IS_ERR instead of NULL ceph_osdc_alloc_request() returns NULL on error, it never returns error pointers. Fixes: 5be0389dac66 ('ceph: re-send AIO write request when getting -EOLDSNAP error') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> 04 February 2016, 17:25:08 UTC
094fd3b Takashi Iwai 04 February 2016, 16:06:13 UTC ALSA: timer: Fix leftover link at closing In ALSA timer core, the active timer instance is managed in active_list linked list. Each element is added / removed dynamically at timer start, stop and in timer interrupt. The problem is that snd_timer_interrupt() has a thinko and leaves the element in active_list when it's the last opened element. This eventually leads to list corruption or use-after-free error. This hasn't been revealed because we used to delete the list forcibly in snd_timer_stop() in the past. However, the recent fix avoids the double-stop behavior (in commit [f784beb75ce8: ALSA: timer: Fix link corruption due to double start or stop]), and this leak hits reality. This patch fixes the link management in snd_timer_interrupt(). Now it simply unlinks no matter which stream is. BugLink: http://lkml.kernel.org/r/CACT4Y+Yy2aukHP-EDp8-ziNqNNmb-NTf=jDWXMP7jB8HDa2vng@mail.gmail.com Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> 04 February 2016, 16:19:09 UTC
1f2c450 Mauro Carvalho Chehab 03 February 2016, 21:30:31 UTC [media] vb2-core: call threadio->fnc() if !VB2_BUF_STATE_ERROR changeset 70433a152f0 ("media: videobuf2: Refactor vb2_fileio_data and vb2_thread") broke videobuf2-dvb. The root cause is that, instead of calling threadio->fnc() for all types of events except for VB2_BUF_STATE_ERROR, it was calling it only for VB2_BUF_STATE_DONE. With that, the DVB thread were never called. Cc: stable@vger.kernel.org # Kernel >= 4.3 Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> 04 February 2016, 11:15:51 UTC
fac710e Hans Verkuil 27 January 2016, 12:08:42 UTC [media] vb2: fix nasty vb2_thread regression The vb2_thread implementation was made generic and was moved from videobuf2-v4l2.c to videobuf2-core.c in commit af3bac1a. Unfortunately that clearly was never tested since it broke read() causing NULL address references. The root cause was confused handling of vb2_buffer vs v4l2_buffer (the pb pointer in various core functions). The v4l2_buffer no longer exists after moving the code into the core and it is no longer needed. However, the vb2_thread code passed a pointer to a vb2_buffer to the core functions were a v4l2_buffer pointer was expected and vb2_thread expected that the vb2_buffer fields would be filled in correctly. This is obviously wrong since v4l2_buffer != vb2_buffer. Note that the pb pointer is a void pointer, so no type-checking took place. This patch fixes this problem: 1) allow pb to be NULL for vb2_core_(d)qbuf. The vb2_thread code will use a NULL pointer here since they don't care about v4l2_buffer anyway. 2) let vb2_core_dqbuf pass back the index of the received buffer. This is all vb2_thread needs: this index is the index into the q->bufs array and vb2_thread just gets the vb2_buffer from there. 3) the fileio->b pointer (that originally contained a v4l2_buffer) is removed altogether since it is no longer needed. Tested with vivid and the cobalt driver. Cc: stable@vger.kernel.org # Kernel >= 4.3 Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reported-by: Matthias Schwarzott <zzam@gentoo.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> 04 February 2016, 11:13:46 UTC
e8beb02 Mauro Carvalho Chehab 03 February 2016, 19:33:48 UTC [media] tda1004x: only update the frontend properties if locked The tda1004x was updating the properties cache before locking. If the device is not locked, the data at the registers are just random values with no real meaning. This caused the driver to fail with libdvbv5, as such library calls GET_PROPERTY from time to time, in order to return the DVB stats. Tested with a saa7134 card 78: ASUSTeK P7131 Dual, vendor PCI ID: 1043:4862 Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> 04 February 2016, 11:10:45 UTC
9ea0641 Shaohua Li 03 February 2016, 23:43:59 UTC Merge branch 'mymd/for-next' into mymd/for-linus 03 February 2016, 23:43:59 UTC
5c82171 Mathias Nyman 26 January 2016, 15:50:12 UTC xhci: Fix list corruption in urb dequeue at host removal xhci driver frees data for all devices, both usb2 and and usb3 the first time usb_remove_hcd() is called, including td_list and and xhci_ring structures. When usb_remove_hcd() is called a second time for the second xhci bus it will try to dequeue all pending urbs, and touches td_list which is already freed for that endpoint. Cc: <stable@vger.kernel.org> Reported-by: Joe Lawrence <joe.lawrence@stratus.com> Tested-by: Joe Lawrence <joe.lawrence@stratus.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 03 February 2016, 22:01:47 UTC
2ad294d Gregory CLEMENT 26 January 2016, 15:50:11 UTC usb: host: xhci-plat: fix NULL pointer in probe for device tree case During probe, in the device tree case, the data pointer associated to a compatible is dereferenced. However, not all the compatibles are associated to a private data pointer. The generic-xhci and the xhci-platform don't need them, this patch adds a test on the data pointer before accessing it, avoiding a kernel crash. Fixes: 4efb2f694114 ("usb: host: xhci-plat: add struct xhci_plat_priv") Cc: stable@vger.kernel.org Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 03 February 2016, 22:01:47 UTC
882fa27 Chunfeng Yun 26 January 2016, 15:50:10 UTC usb: xhci-mtk: fix AHB bus hang up caused by roothubs polling when ip fails to enter sleep mode, register access protection will be disabled, at the same time if all clocks are disabled, access register will hang up AHB bus. the common case causes ip sleep failure is that after all ports enter U3 but before ip enters sleep mode, a port receives a resume signal('K'). this will happens when such as clicks mouse to try to do remote-wakeup to stop system enter suspend. so stop polling root hubs to avoid access xHCI register on bus suspend, and restart it when bus resumes. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 03 February 2016, 22:01:47 UTC
b765a16 Chunfeng Yun 26 January 2016, 15:50:09 UTC usb: xhci-mtk: fix bpkts value of LS/HS periodic eps not behind TT when a LS or FS device doesn't connect though a HS hub, the @bPkts field of its periodic endpoint context should be set to 1. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 03 February 2016, 22:01:47 UTC
ccc04af Lu Baolu 26 January 2016, 15:50:08 UTC usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Broxton-M platforms Intel Broxton M was verifed to require XHCI_PME_STUCK_QUIRK quirk as well. Cc: stable@vger.kernel.org Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 03 February 2016, 22:01:47 UTC
92149c9 Lu Baolu 26 January 2016, 15:50:07 UTC usb: xhci: set SSIC port unused only if xhci_suspend succeeds XHCI_SSIC_PORT_UNUSED quirk was applied to the xHCI host controllers in some Intel SoC chips. With this quirk applied, SSIC port is set to "unused" prior to xhci_suspend(). This may cause problem if host fails to suspend. In this case, the port is set to unused without host further entering D3, and the port will not be usable anymore. Cc: stable@vger.kernel.org Signed-off-by: Zhuang Jin Can <jin.can.zhuang@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 03 February 2016, 22:01:47 UTC
7e70cbf Lu Baolu 26 January 2016, 15:50:06 UTC usb: xhci: add a quirk bit for ssic port unused Two workarounds introduced by commit b8cb91e058cd ("xhci: Workaround for PME stuck issues in Intel xhci") and commit abce329c27b3 ("xhci: Workaround to get D3 working in Intel xHCI") share a single quirk bit XHCI_PME_STUCK_QUIRK. These two workarounds actually are different and might happen on different hardwares. Need to separate them by adding a quirk bit for the later. Cc: stable@vger.kernel.org Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 03 February 2016, 22:01:47 UTC
fa89537 Lu Baolu 26 January 2016, 15:50:05 UTC usb: xhci: handle both SSIC ports in PME stuck quirk Commit abce329c27b3 ("xhci: Workaround to get D3 working in Intel xHCI") adds a workaround for a limitation of PME storm caused by SSIC port in some Intel SoCs. This commit only handled one SSIC port, while there are actually two SSIC ports in the chips. This patch handles both SSIC ports. Without this fix, users still see PME storm. Cc: stable@vger.kernel.org # v4.2+ Signed-off-by: Zhuang Jin Can <jin.can.zhuang@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 03 February 2016, 22:01:47 UTC
6a4290c Jianqiang Tang 20 January 2016, 06:09:39 UTC usb: dwc3: gadget: set the OTG flag in dwc3 gadget driver. This patch is needed in order to pass one test case defined in the OTG Automated Compliance Test specification. Specification location: http://www.usb.org/developers/onthego/otgeh_compliance_plan_1_2.pdf This test case uses PET Tool, and PET Tool is one USB hardware equipment provided by MQP Electronics. Test case id is 6.8.3 B-UUT Bypass Capacitance. We must set this otg flag in order to be able to return OTG descriptor during enumeration, otherwise this test case with failed with below error: "Get OTG descriptor request stalled". Signed-off-by: Jianqiang Tang <jianqiang.tang@intel.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> 03 February 2016, 21:58:20 UTC
a683509 Mathias Nyman 26 January 2016, 15:50:04 UTC Revert "xhci: don't finish a TD if we get a short-transfer event mid TD" This reverts commit e210c422b6fd ("xhci: don't finish a TD if we get a short transfer event mid TD") Turns out that most host controllers do not follow the xHCI specs and never send the second event for the last TRB in the TD if there was a short event mid-TD. Returning the URB directly after the first short-transfer event is far better than never returning the URB. (class drivers usually timeout after 30sec). For the hosts that do send the second event we will go back to treating it as misplaced event and print an error message for it. The origial patch was sent to stable kernels and needs to be reverted from there as well Cc: stable@vger.kernel.org Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 03 February 2016, 21:55:42 UTC
a55f628 Felipe Balbi 03 February 2016, 18:23:01 UTC MAINTAINERS: fix my email address As I'm not working for Texas Instruments anymore, balbi@ti.com isn't a valid address. I'll be using balbi@kernel.org at least for the time being. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Felipe Balbi <balbi@kernel.org> 03 February 2016, 21:52:33 UTC
3e275c6 Mark Brown 28 January 2016, 12:18:28 UTC arm64: asm: Explicitly include linux/personality.h in asm/page.h asm/page.h uses READ_IMPLIES_EXEC from linux/personality.h but does not explicitly include it causing build failures in -next where whatever was causing it to be implicitly included has changed to remove that inclusion. Add an explicit inclusion to fix this. Signed-off-by: Mark Brown <broonie@kernel.org> [will: moved #include inside #ifndef __ASSEMBLY__ block] Signed-off-by: Will Deacon <will.deacon@arm.com> 03 February 2016, 19:22:02 UTC
6357b75 Alex Deucher 02 February 2016, 23:22:24 UTC drm/amdgpu: disable uvd and vce clockgating on Fiji Doesn't work properly yet. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Sonny Jiang <sonny.jiang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 03 February 2016, 18:49:51 UTC
192cb07 John Youn 12 January 2016, 00:32:28 UTC usb: dwc2: Fix probe problem on bcm2835 Fixes an issue found on Raspberry PI platform that prevents probe. Don't skip setting the force mode if it's already set. Fixes: 09c96980dc72 ("usb: dwc2: Add functions to set and clear force mode") Tested-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: John Youn <johnyoun@synopsys.com> Reported-by: Stefan Wahren <stefan.wahren@i2se.com> Reported-by: Remi Pommarel <repk@triplefau.lt> Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Tested-by: Remi Pommarel <repk@triplefau.lt> Signed-off-by: Felipe Balbi <balbi@kernel.org> 03 February 2016, 18:15:49 UTC
03b32e4 John Youn 12 January 2016, 00:32:14 UTC Revert "usb: dwc2: Move reset into dwc2_get_hwparams()" This reverts commit 263b7fb557f7 ("usb: dwc2: Move reset into dwc2_get_hwparams()") due to regression found on bcm2835 platform. USB ethernet fails, due to being unable to pick up proper parameters when performing a plain reset before reading hw params. Below shows the results of the gnptxfsiz and hptxfsiz with and before and after reverting this (from Stefan Wahren): So here is the probe result before Patch 1 is applied: [ 1.283148] dwc2 20980000.usb: Configuration mismatch. dr_mode forced to host [ 1.313894] dwc2 20980000.usb: gnptxfsiz=00201000 [ 1.314104] dwc2 20980000.usb: hptxfsiz=00000000 [ 1.353908] dwc2 20980000.usb: 256 invalid for host_nperio_tx_fifo_size. Check HW configuration. [ 1.354262] dwc2 20980000.usb: 512 invalid for host_perio_tx_fifo_size. Check HW configuration. [ 1.394249] dwc2 20980000.usb: DWC OTG Controller [ 1.394561] dwc2 20980000.usb: new USB bus registered, assigned bus number 1 [ 1.394917] dwc2 20980000.usb: irq 33, io mem 0x00000000 And here is the probe result after Patch 1 is applied: [ 1.280107] dwc2 20980000.usb: Configuration mismatch. dr_mode forced to host [ 1.353949] dwc2 20980000.usb: gnptxfsiz=01001000 [ 1.354166] dwc2 20980000.usb: hptxfsiz=02002000 [ 1.434301] dwc2 20980000.usb: DWC OTG Controller [ 1.434616] dwc2 20980000.usb: new USB bus registered, assigned bus number 1 [ 1.434973] dwc2 20980000.usb: irq 33, io mem 0x00000000 Tested-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: John Youn <johnyoun@synopsys.com> Reported-by: Stefan Wahren <stefan.wahren@i2se.com> Reported-by: Remi Pommarel <repk@triplefau.lt> Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Tested-by: Remi Pommarel <repk@triplefau.lt> Signed-off-by: Felipe Balbi <balbi@kernel.org> 03 February 2016, 18:15:19 UTC
e79aee4 Rafael J. Wysocki 30 January 2016, 11:54:29 UTC PM: Avoid false-positive warnings in dev_pm_domain_set() There is a WARN_ON() in dev_pm_domain_set() that triggers on attempts to set the pm_domain pointer for devices with a driver bound. However, that WARN_ON() triggers on attempts to clear the pointer too and the test it uses is based on checking the device's p->knode_driver pointer which still is set when the device bus type's/driver's ->remove callback has been executed. This leads to false-positive warnings when bus type code calls dev_pm_domain_set() to clear the pm_domain pointer after invoking the driver's ->remove() callback. To avoid those false-positives, make dev_pm_domain_set() check if the pointer passed to it is NULL and skip the warning in that case. Fixes: 989561de9b51 (PM / Domains: add setter for dev.pm_domain) Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Sinan Kaya <okaya@codeaurora.org> Tested-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> 03 February 2016, 18:10:37 UTC
b37a05c Linus Torvalds 03 February 2016, 18:10:02 UTC Merge branch 'akpm' (patches from Andrew) Merge fixes from Andrew Morton: "18 fixes" [ The 18 fixes turned into 17 commits, because one of the fixes was a fix for another patch in the series that I just folded in by editing the patch manually - hopefully correctly - Linus ] * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm: fix memory leak in copy_huge_pmd() drivers/hwspinlock: fix race between radix tree insertion and lookup radix-tree: fix race in gang lookup mm/vmpressure.c: fix subtree pressure detection mm: polish virtual memory accounting mm: warn about VmData over RLIMIT_DATA Documentation: cgroup-v2: add memory.stat::sock description mm: memcontrol: drop superfluous entry in the per-memcg stats array drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration proc: revert /proc/<pid>/maps [stack:TID] annotation numa: fix /proc/<pid>/numa_maps for hugetlbfs on s390 MAINTAINERS: update Seth email ocfs2/cluster: fix memory leak in o2hb_region_release lib/test-string_helpers.c: fix and improve string_get_size() tests thp: limit number of object to scan on deferred_split_scan() thp: change deferred_split_count() to return number of THP in queue thp: make split_queue per-node 03 February 2016, 18:10:02 UTC
d5bfb96 Linus Torvalds 03 February 2016, 18:04:58 UTC Merge tag 'for-linus-4.5-2' of git://git.code.sf.net/p/openipmi/linux-ipmi Pull IPMI fix from Corey Minyard: "Fix a compile error on IPMI when ACPI is disabled" * tag 'for-linus-4.5-2' of git://git.code.sf.net/p/openipmi/linux-ipmi: ipmi: put acpi.h with the other headers 03 February 2016, 18:04:58 UTC
79c5623 Ulf Hansson 25 January 2016, 12:01:29 UTC usb: musb: ux500: Fix NULL pointer dereference at system PM The commit 7d32cdef5356 ("usb: musb: fail with error when no DMA controller set"), caused the core platform driver to correctly return an error code when fail probing. Unfurtante it also caused bug for a NULL pointer dereference, during system suspend for the ux500 driver. The reason is a lacking validation of the corresponding ->driver_data pointer, which won't be set when the musb core driver fails to probe (or haven't yet been probed). Fixes: 7d32cdef5356 ("usb: musb: fail with error when no DMA...") Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Felipe Balbi <balbi@kernel.org> 03 February 2016, 18:03:40 UTC
63b121e Li Jun 21 January 2016, 07:51:26 UTC usb: phy: mxs: declare variable with initialized value Initialize vbus_value to be 0 since it's possible not to assign any value before judgement. Acked-by: Peter Chen <peter.chen@nxp.com Signed-off-by: Li Jun <jun.li@nxp.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> 03 February 2016, 17:57:41 UTC
86270c8 Linus Torvalds 03 February 2016, 17:55:50 UTC Merge tag 'devicetree-fixes-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree fixes from Rob Herring: - Fix build error with *_OF_DECLARE() when used in modules - Add missing platform maintainers for dts files in MAINTAINERS * tag 'devicetree-fixes-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: drop symbols declared by _OF_DECLARE() from modules MAINTAINERS: Add missing platform maintainers for dts files 03 February 2016, 17:55:50 UTC
a38a08d Srinivas Kandagatla 13 January 2016, 09:13:10 UTC usb: phy: msm: fix error handling in probe. This driver registers for extcon events as part of its probe, but never unregisters them in case of error in the probe path. There were multiple issues noticed due to this missing error handling. One of them is random crashes if the regulators are not ready yet by the time probe is invoked. Ivan's previous attempt [1] to fix this issue, did not really address all the failure cases like regualtor/get_irq failures. [1] https://lkml.org/lkml/2015/9/7/62 Without this patch the kernel would carsh with log: ... Unable to handle kernel paging request at virtual address 17d78410 pgd = ffffffc001a5c000 [17d78410] *pgd=00000000b6806003, *pud=00000000b6806003, *pmd=0000000000000000 Internal error: Oops: 96000005 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 6 Comm: kworker/u8:0 Not tainted 4.4.0+ #48 Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) Workqueue: deferwq deferred_probe_work_func task: ffffffc03686e900 ti: ffffffc0368b0000 task.ti: ffffffc0368b0000 PC is at raw_notifier_chain_register+0x1c/0x44 LR is at extcon_register_notifier+0x88/0xc8 pc : [<ffffffc0000da43c>] lr : [<ffffffc000606298>] pstate: 80000085 sp : ffffffc0368b3a70 x29: ffffffc0368b3a70 x28: ffffffc03680c310 x27: ffffffc035518000 x26: ffffffc035518000 x25: ffffffc03bfa20e0 x24: ffffffc035580a18 x23: 0000000000000000 x22: ffffffc035518458 x21: ffffffc0355e9a60 x20: ffffffc035518000 x19: 0000000000000000 x18: 0000000000000028 x17: 0000000000000003 x16: ffffffc0018153c8 x15: 0000000000000001 x14: ffffffc03686f0f8 x13: ffffffc03686f0f8 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000001 x9 : ffffffc03686f0f8 x8 : 0000e3872014c1a1 x7 : 0000000000000028 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : 00000000354fb170 x2 : 0000000017d78400 x1 : ffffffc0355e9a60 x0 : ffffffc0354fb268 Fixes: 591fc116f330 ("usb: phy: msm: Use extcon framework for VBUS and ID detection") CC: Stable <stable@vger.kernel.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Felipe Balbi <balbi@kernel.org> 03 February 2016, 17:52:29 UTC
81b676b Linus Torvalds 03 February 2016, 17:36:41 UTC Merge tag 'nfs-for-4.5-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs Pull NFS client bugfix and cleanup from Trond Myklebust: "Bugfix: - pNFS: Fix for missing layoutreturn calls Cleanup: - pNFS: rename NFS_LAYOUT_RETURN_BEFORE_CLOSE for code clarity" * tag 'nfs-for-4.5-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFS: Cleanup - rename NFS_LAYOUT_RETURN_BEFORE_CLOSE pNFS: Fix missing layoutreturn calls 03 February 2016, 17:36:41 UTC
ef582d0 Linus Torvalds 03 February 2016, 17:31:34 UTC Merge tag 'trace-v4.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "A cleanup to the stack tracer broke stack tracing on s390. Here's a simple fix to correct that issue" * tag 'trace-v4.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing/stacktrace: Show entire trace if passed in function not found 03 February 2016, 17:31:34 UTC
4643536 Hugh Dickins 31 January 2016, 02:03:16 UTC mm: retire GUP WARN_ON_ONCE that outlived its usefulness Trinity is now hitting the WARN_ON_ONCE we added in v3.15 commit cda540ace6a1 ("mm: get_user_pages(write,force) refuse to COW in shared areas"). The warning has served its purpose, nobody was harmed by that change, so just remove the warning to generate less noise from Trinity. Which reminds me of the comment I wrongly left behind with that commit (but was spotted at the time by Kirill), which has since moved into a separate function, and become even more obscure: delete it. Reported-by: Dave Jones <davej@codemonkey.org.uk> Suggested-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 03 February 2016, 16:57:14 UTC
58c9d61 Tony Camuso 02 February 2016, 18:57:24 UTC ipmi: put acpi.h with the other headers Enclosing '#include <linux/acpi.h>' within '#ifdef CONFIG_ACPI' is unnecessary, since it has its own conditional compile for CONFIG_ACPI. Commit 0fbcf4af7c83 ("ipmi: Convert the IPMI SI ACPI handling to a platform device") exposed this as a problem for platforms that do not support ACPI when it introduced a call to ACPI_PTR() macro outside of the CONFIG_ACPI conditional compile. This would have been perfectly acceptable if acpi.h were not conditionally excluded for the non-acpi platform, because the conditional compile within acpi.h defines ACPI_PTR() to return NULL when compiled for non acpi platforms. Signed-off-by: Tony Camuso <tcamuso@redhat.com> Fixed commit reference in header to conform to standard. Signed-off-by: Corey Minyard <cminyard@mvista.com> 03 February 2016, 16:35:52 UTC
12c9d70 Matthew Wilcox 03 February 2016, 00:57:57 UTC mm: fix memory leak in copy_huge_pmd() We allocate a pgtable but do not attach it to anything if the PMD is in a DAX VMA, causing it to leak. We certainly try to not free pgtables associated with the huge zero page if the zero page is in a DAX VMA, so I think this is the right solution. This needs to be properly audited. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 03 February 2016, 16:28:43 UTC
c6400ba Matthew Wilcox 03 February 2016, 00:57:55 UTC drivers/hwspinlock: fix race between radix tree insertion and lookup of_hwspin_lock_get_id() is protected by the RCU lock, which means that insertions can occur simultaneously with the lookup. If the radix tree transitions from a height of 0, we can see a slot with the indirect_ptr bit set, which will cause us to at least read random memory, and could cause other havoc. Fix this by using the newly introduced radix_tree_iter_retry(). Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 03 February 2016, 16:28:43 UTC
back to top