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2016-10-27kconfig.h: remove config_enabled() macroMasahiro Yamada
The use of config_enabled() is ambiguous. For config options, IS_ENABLED(), IS_REACHABLE(), etc. will make intention clearer. Sometimes config_enabled() has been used for non-config options because it is useful to check whether the given symbol is defined or not. I have been tackling on deprecating config_enabled(), and now is the time to finish this work. Some new users have appeared for v4.9-rc1, but it is trivial to replace them: - arch/x86/mm/kaslr.c replace config_enabled() with IS_ENABLED() because CONFIG_X86_ESPFIX64 and CONFIG_EFI are boolean. - include/asm-generic/export.h replace config_enabled() with __is_defined(). Then, config_enabled() can be removed now. Going forward, please use IS_ENABLED(), IS_REACHABLE(), etc. for config options, and __is_defined() for non-config symbols. Link: http://lkml.kernel.org/r/1476616078-32252-1-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Kees Cook <keescook@chromium.org> Cc: Michal Marek <mmarek@suse.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Garnier <thgarnie@google.com> Cc: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-27net: ipv6: Do not consider link state for nexthop validationDavid Ahern
Similar to IPv4, do not consider link state when validating next hops. Currently, if the link is down default routes can fail to insert: $ ip -6 ro add vrf blue default via 2100:2::64 dev eth2 RTNETLINK answers: No route to host With this patch the command succeeds. Fixes: 8c14586fc320 ("net: ipv6: Use passed in table for nexthop lookups") Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-27net: ipv6: Fix processing of RAs in presence of VRFDavid Ahern
rt6_add_route_info and rt6_add_dflt_router were updated to pull the FIB table from the device index, but the corresponding rt6_get_route_info and rt6_get_dflt_router functions were not leading to the failure to process RA's: ICMPv6: RA: ndisc_router_discovery failed to add default route Fix the 'get' functions by using the table id associated with the device when applicable. Also, now that default routes can be added to tables other than the default table, rt6_purge_dflt_routers needs to be updated as well to look at all tables. To handle that efficiently, add a flag to the table denoting if it is has a default route via RA. Fixes: ca254490c8dfd ("net: Add VRF support to IPv6 stack") Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-27Merge tag 'xfs-fixes-for-linus-4.9-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs Pull xfs fixes from Dave Chinner: "This update contains fixes for most of the outstanding regressions introduced with the 4.9-rc1 XFS merge. There is also a fix for an iomap bug, too. This is a quite a bit larger than I'd prefer for a -rc3, but most of the change comes from cleaning up the new reflink copy on write code; it's much simpler and easier to understand now. These changes fixed several bugs in the new code, and it wasn't clear that there was an easier/simpler way to fix them. The rest of the fixes are the usual size you'd expect at this stage. I've left the commits to soak in linux-next for a some extra time because of the size before asking you to pull, no new problems with them have been reported so I think it's all OK. Summary: - iomap page offset masking fix for page faults - add IOMAP_REPORT to distinguish between read and fiemap map requests - cleanups to new shared data extent code - fix mount active status on failed log recovery - fix broken dquots in a buffer calculation - fix locking order issues and merge xfs_reflink_remap_range and xfs_file_share_range - rework unmapping of CoW extents and remove now unused functions - clean state when CoW is done" * tag 'xfs-fixes-for-linus-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (25 commits) xfs: clear cowblocks tag when cow fork is emptied xfs: fix up inode cowblocks tracking tracepoints fs: Do to trim high file position bits in iomap_page_mkwrite_actor xfs: remove xfs_bunmapi_cow xfs: optimize xfs_reflink_end_cow xfs: optimize xfs_reflink_cancel_cow_blocks xfs: refactor xfs_bunmapi_cow xfs: optimize writes to reflink files xfs: don't bother looking at the refcount tree for reads xfs: handle "raw" delayed extents xfs_reflink_trim_around_shared xfs: add xfs_trim_extent iomap: add IOMAP_REPORT xfs: merge xfs_reflink_remap_range and xfs_file_share_range xfs: remove xfs_file_wait_for_io xfs: move inode locking from xfs_reflink_remap_range to xfs_file_share_range xfs: fix the same_inode check in xfs_file_share_range xfs: remove the same fs check from xfs_file_share_range libxfs: v3 inodes are only valid on crc-enabled filesystems libxfs: clean up _calc_dquots_per_chunk xfs: unset MS_ACTIVE if mount fails ...
2016-10-27netfilter: conntrack: avoid excess memory allocationFlorian Westphal
This is now a fixed-size extension, so we don't need to pass a variable alloc size. This (harmless) error results in allocating 32 instead of the needed 16 bytes for this extension as the size gets passed twice. Fixes: 23014011ba420 ("netfilter: conntrack: support a fixed size of 128 distinct labels") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-10-27netfilter: nf_tables: fix type mismatch with error return from ↵John W. Linville
nft_parse_u32_check Commit 36b701fae12ac ("netfilter: nf_tables: validate maximum value of u32 netlink attributes") introduced nft_parse_u32_check with a return value of "unsigned int", yet on error it returns "-ERANGE". This patch corrects the mismatch by changing the return value to "int", which happens to match the actual users of nft_parse_u32_check already. Found by Coverity, CID 1373930. Note that commit 21a9e0f1568ea ("netfilter: nft_exthdr: fix error handling in nft_exthdr_init()) attempted to address the issue, but did not address the return type of nft_parse_u32_check. Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: Laura Garcia Liebana <nevola@gmail.com> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 36b701fae12ac ("netfilter: nf_tables: validate maximum value...") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-10-27mm: remove per-zone hashtable of bitlock waitqueuesLinus Torvalds
The per-zone waitqueues exist because of a scalability issue with the page waitqueues on some NUMA machines, but it turns out that they hurt normal loads, and now with the vmalloced stacks they also end up breaking gfs2 that uses a bit_wait on a stack object: wait_on_bit(&gh->gh_iflags, HIF_WAIT, TASK_UNINTERRUPTIBLE) where 'gh' can be a reference to the local variable 'mount_gh' on the stack of fill_super(). The reason the per-zone hash table breaks for this case is that there is no "zone" for virtual allocations, and trying to look up the physical page to get at it will fail (with a BUG_ON()). It turns out that I actually complained to the mm people about the per-zone hash table for another reason just a month ago: the zone lookup also hurts the regular use of "unlock_page()" a lot, because the zone lookup ends up forcing several unnecessary cache misses and generates horrible code. As part of that earlier discussion, we had a much better solution for the NUMA scalability issue - by just making the page lock have a separate contention bit, the waitqueue doesn't even have to be looked at for the normal case. Peter Zijlstra already has a patch for that, but let's see if anybody even notices. In the meantime, let's fix the actual gfs2 breakage by simplifying the bitlock waitqueues and removing the per-zone issue. Reported-by: Andreas Gruenbacher <agruenba@redhat.com> Tested-by: Bob Peterson <rpeterso@redhat.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-27netfilter: nf_tables: fix *leak* when expr clone failLiping Zhang
When nft_expr_clone failed, a series of problems will happen: 1. module refcnt will leak, we call __module_get at the beginning but we forget to put it back if ops->clone returns fail 2. memory will be leaked, if clone fail, we just return NULL and forget to free the alloced element 3. set->nelems will become incorrect when set->size is specified. If clone fail, we should decrease the set->nelems Now this patch fixes these problems. And fortunately, clone fail will only happen on counter expression when memory is exhausted. Fixes: 086f332167d6 ("netfilter: nf_tables: add clone interface to expression operations") Signed-off-by: Liping Zhang <zlpnobody@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-10-26udp: fix IP_CHECKSUM handlingEric Dumazet
First bug was added in commit ad6f939ab193 ("ip: Add offset parameter to ip_cmsg_recv") : Tom missed that ipv4 udp messages could be received on AF_INET6 socket. ip_cmsg_recv(msg, skb) should have been replaced by ip_cmsg_recv_offset(msg, skb, sizeof(struct udphdr)); Then commit e6afc8ace6dd ("udp: remove headers from UDP packets before queueing") forgot to adjust the offsets now UDP headers are pulled before skb are put in receive queue. Fixes: ad6f939ab193 ("ip: Add offset parameter to ip_cmsg_recv") Fixes: e6afc8ace6dd ("udp: remove headers from UDP packets before queueing") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Sam Kumar <samanthakumar@google.com> Cc: Willem de Bruijn <willemb@google.com> Tested-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-26doc: update docbook annotations for socket and skbStephen Hemminger
The skbuff and sock structure both had missing parameter annotation values. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-26drm: Don't force all planes to be added to the state due to zposVille Syrjälä
We don't want all planes to be added to the state whenever a plane with fixed zpos gets enabled/disabled. This is true especially for eg. cursor planes on i915, as we want cursor updates to go through w/o throttling. Same holds for drivers that don't support zpos at all (i915 actually falls into this category right now since we've not yet added zpos support). Allow drivers more freedom by letting them deal with zpos themselves instead of doing it in drm_atomic_helper_check_planes() unconditionally. Let's just inline the required calls into all the driver that currently depend on this. v2: Inline the stuff into the drivers instead of adding another helper, document things better (Daniel) Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lyude <cpaul@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: stable@vger.kernel.org Fixes: 44d1240d006c ("drm: add generic zpos property") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1476111056-12734-1-git-send-email-ville.syrjala@linux.intel.com
2016-10-26mac80211: fix some sphinx warningsJani Nikula
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-26x86/io: add interface to reserve io memtype for a resource range. (v1.1)Dave Airlie
A recent change to the mm code in: 87744ab3832b mm: fix cache mode tracking in vm_insert_mixed() started enforcing checking the memory type against the registered list for amixed pfn insertion mappings. It happens that the drm drivers for a number of gpus relied on this being broken. Currently the driver only inserted VRAM mappings into the tracking table when they came from the kernel, and userspace mappings never landed in the table. This led to a regression where all the mapping end up as UC instead of WC now. I've considered a number of solutions but since this needs to be fixed in fixes and not next, and some of the solutions were going to introduce overhead that hadn't been there before I didn't consider them viable at this stage. These mainly concerned hooking into the TTM io reserve APIs, but these API have a bunch of fast paths I didn't want to unwind to add this to. The solution I've decided on is to add a new API like the arch_phys_wc APIs (these would have worked but wc_del didn't take a range), and use them from the drivers to add a WC compatible mapping to the table for all VRAM on those GPUs. This means we can then create userspace mapping that won't get degraded to UC. v1.1: use CONFIG_X86_PAT + add some comments in io.h Cc: Toshi Kani <toshi.kani@hp.com> Cc: Borislav Petkov <bp@alien8.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Brian Gerst <brgerst@gmail.com> Cc: x86@kernel.org Cc: mcgrof@suse.com Cc: Dan Williams <dan.j.williams@intel.com> Acked-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-10-24Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "This is the first batch of clk driver fixes for this release. We have a handful of fixes for the uniphier clk driver that was introduced recently, as well as Kconfig option hiding, module autoloading markings, and a few fixes for clk_hw based registration patches that went in this merge window" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: at91: Fix a return value in case of error clk: uniphier: rename MIO clock to SD clock for Pro5, PXs2, LD20 SoCs clk: uniphier: fix memory overrun bug clk: hi6220: use CLK_OF_DECLARE_DRIVER for sysctrl and mediactrl clock init clk: mvebu: armada-37xx-periph: Fix the clock gate flag clk: bcm2835: Clamp the PLL's requested rate to the hardware limits. clk: max77686: fix number of clocks setup for clk_hw based registration clk: mvebu: armada-37xx-periph: Fix the clock provider registration clk: core: add __init decoration for CLK_OF_DECLARE_DRIVER function clk: mediatek: Add hardware dependency clk: samsung: clk-exynos-audss: Fix module autoload clk: uniphier: fix type of variable passed to regmap_read() clk: uniphier: add system clock support for sLD3 SoC
2016-10-24mm: unexport __get_user_pages()Lorenzo Stoakes
This patch unexports the low-level __get_user_pages() function. Recent refactoring of the get_user_pages* functions allow flags to be passed through get_user_pages() which eliminates the need for access to this function from its one user, kvm. We can see that the two calls to get_user_pages() which replace __get_user_pages() in kvm_main.c are equivalent by examining their call stacks: get_user_page_nowait(): get_user_pages(start, 1, flags, page, NULL) __get_user_pages_locked(current, current->mm, start, 1, page, NULL, NULL, false, flags | FOLL_TOUCH) __get_user_pages(current, current->mm, start, 1, flags | FOLL_TOUCH | FOLL_GET, page, NULL, NULL) check_user_page_hwpoison(): get_user_pages(addr, 1, flags, NULL, NULL) __get_user_pages_locked(current, current->mm, addr, 1, NULL, NULL, NULL, false, flags | FOLL_TOUCH) __get_user_pages(current, current->mm, addr, 1, flags | FOLL_TOUCH, NULL, NULL, NULL) Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-24ACPI/PCI: pci_link: penalize SCI correctlySinan Kaya
Ondrej reported that IRQs stopped working in v4.7 on several platforms. A typical scenario, from Ondrej's VT82C694X/694X, is: ACPI: Using PIC for interrupt routing ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 7 10 *11 12 14 15) ACPI: No IRQ available for PCI Interrupt Link [LNKA] 8139too 0000:00:0f.0: PCI INT A: no GSI We're using PIC routing, so acpi_irq_balance == 0, and LNKA is already active at IRQ 11. In that case, acpi_pci_link_allocate() only tries to use the active IRQ (IRQ 11) which also happens to be the SCI. We should penalize the SCI by PIRQ_PENALTY_PCI_USING, but irq_get_trigger_type(11) returns something other than IRQ_TYPE_LEVEL_LOW, so we penalize it by PIRQ_PENALTY_ISA_ALWAYS instead, which makes acpi_pci_link_allocate() assume the IRQ isn't available and give up. Add acpi_penalize_sci_irq() so platforms can tell us the SCI IRQ, trigger, and polarity directly and we don't have to depend on irq_get_trigger_type(). Fixes: 103544d86976 (ACPI,PCI,IRQ: reduce resource requirements) Link: http://lkml.kernel.org/r/201609251512.05657.linux@rainbow-software.org Reported-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Tested-by: Jonathan Liu <net147@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds
Pull SCSI target fixes from Nicholas Bellinger: "Here are the outstanding target-pending fixes for v4.9-rc2. This includes: - Fix v4.1.y+ reference leak regression with concurrent TMR ABORT_TASK + session shutdown. (Vaibhav Tandon) - Enable tcm_fc w/ SCF_USE_CPUID to avoid host exchange timeouts (Hannes) - target/user error sense handling fixes. (Andy + MNC + HCH) - Fix iscsi-target NOP_OUT error path iscsi_cmd descriptor leak (Varun) - Two EXTENDED_COPY SCSI status fixes for ESX VAAI (Dinesh Israni + Nixon Vincent) - Revert a v4.8 residual overflow change, that breaks sg_inq with small allocation lengths. There are a number of folks stress testing the v4.1.y regression fix in their environments, and more folks doing iser-target I/O stress testing atop recent v4.x.y code. There is also one v4.2.y+ RCU conversion regression related to explicit NodeACL configfs changes, that is still being tracked down" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target/tcm_fc: use CPU affinity for responses target/tcm_fc: Update debugging statements to match libfc usage target/tcm_fc: return detailed error in ft_sess_create() target/tcm_fc: print command pointer in debug message target: fix potential race window in target_sess_cmd_list_waiting() Revert "target: Fix residual overflow handling in target_complete_cmd_with_length" target: Don't override EXTENDED_COPY xcopy_pt_cmd SCSI status code target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLE target: Re-add missing SCF_ACK_KREF assignment in v4.1.y iscsi-target: fix iscsi cmd leak iscsi-target: fix spelling mistake "Unsolicitied" -> "Unsolicited" target/user: Fix comments to not refer to data ring target/user: Return an error if cmd data size is too large target/user: Use sense_reason_t in tcmu_queue_cmd_ring
2016-10-23Merge tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmiLinus Torvalds
Pull IPMI updates from Corey Minyard: "A small bug fix and a new driver for acting as an IPMI device. I was on vacation during the merge window (a long vacation) but this is a bug fix that should go in and a new driver that shouldn't hurt anything. This has been in linux-next for a month or so" * tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmi: ipmi: fix crash on reading version from proc after unregisted bmc ipmi/bt-bmc: remove redundant return value check of platform_get_resource() ipmi/bt-bmc: add a dependency on ARCH_ASPEED ipmi: Fix ioremap error handling in bt-bmc ipmi: add an Aspeed BT IPMI BMC driver
2016-10-22qed*: Reduce the memory footprint for Rx pathSudarsana Reddy Kalluru
With the current default values for Rx path i.e., 8 queues of 8Kb entries each with 4Kb size, interface will consume 256Mb for Rx. The default values causing the driver probe to fail when the system memory is low. Based on the perforamnce results, rx-ring count value of 1Kb gives the comparable performance with Rx coalesce timeout of 12 seconds. Updating the default values. Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-22Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Thomas Gleixner: "This updates contains: - A revert which addresses a boot failure on ARM Sun5i platforms - A new clocksource driver, which has been delayed beyond rc1 due to an interrupt driver issue which was unearthed by this driver. The debugging of that issue and the discussion about the proper solution made this driver miss the merge window. There is no point in delaying it for a full cycle as it completes the basic mainline support for the new JCore platform and does not create any risk outside of that platform" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert "clocksource/drivers/timer_sun5i: Replace code by clocksource_mmio_init" clocksource: Add J-Core timer/clocksource driver of: Add J-Core timer bindings
2016-10-22Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Three fixes, a hw-enablement and a cross-arch fix/enablement change: - SGI/UV fix for older platforms - x32 signal handling fix - older x86 platform bootup APIC fix - AVX512-4VNNIW (Neural Network Instructions) and AVX512-4FMAPS (Multiply Accumulation Single precision instructions) enablement. - move thread_info back into x86 specific code, to make life easier for other architectures trying to make use of CONFIG_THREAD_INFO_IN_TASK_STRUCT=y" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot/smp: Don't try to poke disabled/non-existent APIC sched/core, x86: Make struct thread_info arch specific again x86/signal: Remove bogus user_64bit_mode() check from sigaction_compat_abi() x86/platform/UV: Fix support for EFI_OLD_MEMMAP after BIOS callback updates x86/cpufeature: Add AVX512_4VNNIW and AVX512_4FMAPS features x86/vmware: Skip timer_irq_works() check on VMware
2016-10-22Merge branch 'mm-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull vmap stack fixes from Ingo Molnar: "This is fallout from CONFIG_HAVE_ARCH_VMAP_STACK=y on x86: stack accesses that used to be just somewhat questionable are now totally buggy. These changes try to do it without breaking the ABI: the fields are left there, they are just reporting zero, or reporting narrower information (the maps file change)" * 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: mm: Change vm_is_stack_for_task() to vm_is_stack_for_current() fs/proc: Stop trying to report thread stacks fs/proc: Stop reporting eip and esp in /proc/PID/stat mm/numa: Remove duplicated include from mprotect.c
2016-10-22Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Ingo Molnar: "Mostly irqchip driver fixes, plus a symbol export" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: kernel/irq: Export irq_set_parent() irqchip/gic: Add missing \n to CPU IF adjustment message irqchip/jcore: Don't show Kconfig menu item for driver irqchip/eznps: Drop pointless static qualifier in nps400_of_init() irqchip/gic-v3-its: Fix entry size mask for GITS_BASER irqchip/gic-v3-its: Fix 64bit GIC{R,ITS}_TYPER accesses
2016-10-21Merge tag 'acpi-4.9-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "These fix an issue related to system resume in the new WDAT-based watchdog driver and a return value of a stub function in the ACPI CPPC framework. Specifics: - Update the ACPI WDAT-based watchdog driver to ping the hardware during system resume to prevent a reset from occurring after the resume is complete (Mika Westerberg). - Fix the return value of the pcc_mbox_request_channel() stub for CONFIG_PCC unset (Hoan Tran)" * tag 'acpi-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: watchdog: wdat_wdt: Ping the watchdog on resume mailbox: PCC: Fix return value of pcc_mbox_request_channel()
2016-10-21Merge branches 'acpi-wdat' and 'acpi-cppc'Rafael J. Wysocki
* acpi-wdat: watchdog: wdat_wdt: Ping the watchdog on resume * acpi-cppc: mailbox: PCC: Fix return value of pcc_mbox_request_channel()
2016-10-21Merge tag 'gic-fixes-for-4.9-rc2' of ↵Thomas Gleixner
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent Pull GIC updates from Marc Zyngier: - Fix for 32bit accesses that should be 64bit on 64bit machines - Fix for a field decoding macro - Beautify a warning message
2016-10-21Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "A set of fixes that missed the merge window, mostly due to me being away around that time. Nothing major here, a mix of nvme cleanups and fixes, and one fix for the badblocks handling" * 'for-linus' of git://git.kernel.dk/linux-block: nvmet: use symbolic constants for CNS values nvme: use symbolic constants for CNS values nvme.h: add an enum for cns values nvme.h: don't use uuid_be nvme.h: resync with nvme-cli nvme: Add tertiary number to NVME_VS nvme : Add sysfs entry for NVMe CMBs when appropriate nvme: don't schedule multiple resets nvme: Delete created IO queues on reset nvme: Stop probing a removed device badblocks: fix overlapping check for clearing
2016-10-21ipv6: fix a potential deadlock in do_ipv6_setsockopt()WANG Cong
Baozeng reported this deadlock case: CPU0 CPU1 ---- ---- lock([ 165.136033] sk_lock-AF_INET6); lock([ 165.136033] rtnl_mutex); lock([ 165.136033] sk_lock-AF_INET6); lock([ 165.136033] rtnl_mutex); Similar to commit 87e9f0315952 ("ipv4: fix a potential deadlock in mcast getsockopt() path") this is due to we still have a case, ipv6_sock_mc_close(), where we acquire sk_lock before rtnl_lock. Close this deadlock with the similar solution, that is always acquire rtnl lock first. Fixes: baf606d9c9b1 ("ipv4,ipv6: grab rtnl before locking the socket") Reported-by: Baozeng Ding <sploving1@gmail.com> Tested-by: Baozeng Ding <sploving1@gmail.com> Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-20Merge tag 'pm-4.9-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "This fixes the pointer arithmetics mess-up in the cpufreq core introduced by one of recent commits and leading to all kinds of breakage from kernel crashes to incorrect governor decisions (Sergey Senozhatsky)" * tag 'pm-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: fix overflow in cpufreq_table_find_index_dl()
2016-10-20Merge branch 'pm-cpufreq'Rafael J. Wysocki
* pm-cpufreq: cpufreq: fix overflow in cpufreq_table_find_index_dl()
2016-10-20udp: must lock the socket in udp_disconnect()Eric Dumazet
Baozeng Ding reported KASAN traces showing uses after free in udp_lib_get_port() and other related UDP functions. A CONFIG_DEBUG_PAGEALLOC=y kernel would eventually crash. I could write a reproducer with two threads doing : static int sock_fd; static void *thr1(void *arg) { for (;;) { connect(sock_fd, (const struct sockaddr *)arg, sizeof(struct sockaddr_in)); } } static void *thr2(void *arg) { struct sockaddr_in unspec; for (;;) { memset(&unspec, 0, sizeof(unspec)); connect(sock_fd, (const struct sockaddr *)&unspec, sizeof(unspec)); } } Problem is that udp_disconnect() could run without holding socket lock, and this was causing list corruptions. Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Baozeng Ding <sploving1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-20net: add recursion limit to GROSabrina Dubroca
Currently, GRO can do unlimited recursion through the gro_receive handlers. This was fixed for tunneling protocols by limiting tunnel GRO to one level with encap_mark, but both VLAN and TEB still have this problem. Thus, the kernel is vulnerable to a stack overflow, if we receive a packet composed entirely of VLAN headers. This patch adds a recursion counter to the GRO layer to prevent stack overflow. When a gro_receive function hits the recursion limit, GRO is aborted for this skb and it is processed normally. This recursion counter is put in the GRO CB, but could be turned into a percpu counter if we run out of space in the CB. Thanks to Vladimír Beneš <vbenes@redhat.com> for the initial bug report. Fixes: CVE-2016-7039 Fixes: 9b174d88c257 ("net: Add Transparent Ethernet Bridging GRO support.") Fixes: 66e5133f19e9 ("vlan: Add GRO support for non hardware accelerated vlan") Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Jiri Benc <jbenc@redhat.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-20clocksource: Add J-Core timer/clocksource driverRich Felker
At the hardware level, the J-Core PIT is integrated with the interrupt controller, but it is represented as its own device and has an independent programming interface. It provides a 12-bit countdown timer, which is not presently used, and a periodic timer. The interval length for the latter is programmable via a 32-bit throttle register whose units are determined by a bus-period register. The periodic timer is used to implement both periodic and oneshot clock event modes; in oneshot mode the interrupt handler simply disables the timer as soon as it fires. Despite its device tree node representing an interrupt for the PIT, the actual irq generated is programmable, not hard-wired. The driver is responsible for programming the PIT to generate the hardware irq number that the DT assigns to it. On SMP configurations, J-Core provides cpu-local instances of the PIT; no broadcast timer is needed. This driver supports the creation of the necessary per-cpu clock_event_device instances. A nanosecond-resolution clocksource is provided using the J-Core "RTC" registers, which give a 64-bit seconds count and 32-bit nanoseconds that wrap every second. The driver converts these to a full-range 32-bit nanoseconds count. Signed-off-by: Rich Felker <dalias@libc.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Link: http://lkml.kernel.org/r/b591ff12cc5ebf63d1edc98da26046f95a233814.1476393790.git.dalias@libc.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-10-20cpufreq: fix overflow in cpufreq_table_find_index_dl()Sergey Senozhatsky
'best' is always less or equals to 'pos', so `best - pos' returns a negative value which is then getting casted to `unsigned int' and passed to __cpufreq_driver_target()->acpi_cpufreq_target() for policy->freq_table selection. This results in BUG: unable to handle kernel paging request at ffff881019b469f8 IP: [<ffffffffa00356c1>] acpi_cpufreq_target+0x4f/0x190 [acpi_cpufreq] PGD 267f067 PUD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 6 PID: 70 Comm: kworker/6:1 Not tainted 4.9.0-rc1-next-20161017-dbg-dirty Workqueue: events dbs_work_handler task: ffff88041b808000 task.stack: ffff88041b810000 RIP: 0010:[<ffffffffa00356c1>] [<ffffffffa00356c1>] acpi_cpufreq_target+0x4f/0x190 [acpi_cpufreq] RSP: 0018:ffff88041b813c60 EFLAGS: 00010282 RAX: ffff880419b46a00 RBX: ffff88041b848400 RCX: ffff880419b20f80 RDX: 00000000001dff38 RSI: 00000000ffffffff RDI: ffff88041b848400 RBP: ffff88041b813cb0 R08: 0000000000000006 R09: 0000000000000040 R10: ffffffff8207f9e0 R11: ffffffff8173595b R12: 0000000000000000 R13: ffff88041f1dff38 R14: 0000000000262900 R15: 0000000bfffffff4 FS: 0000000000000000(0000) GS:ffff88041f000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff881019b469f8 CR3: 000000041a2d3000 CR4: 00000000001406e0 Stack: ffff88041b813cb0 ffffffff813347f9 ffff88041b813ca0 ffffffff81334663 ffff88041f1d4bc0 ffff88041b848400 0000000000000000 0000000000000000 0000000000262900 0000000000000000 ffff88041b813d00 ffffffff813355dc Call Trace: [<ffffffff813347f9>] ? cpufreq_freq_transition_begin+0xf1/0xfc [<ffffffff81334663>] ? get_cpu_idle_time+0x97/0xa6 [<ffffffff813355dc>] __cpufreq_driver_target+0x3b6/0x44e [<ffffffff81336ca3>] cs_dbs_timer+0x11a/0x135 [<ffffffff81336fda>] dbs_work_handler+0x39/0x62 [<ffffffff81057823>] process_one_work+0x280/0x4a5 [<ffffffff81058719>] worker_thread+0x24f/0x397 [<ffffffff810584ca>] ? rescuer_thread+0x30b/0x30b [<ffffffff81418380>] ? nl80211_get_key+0x29/0x36a [<ffffffff8105d2b7>] kthread+0xfc/0x104 [<ffffffff8107ceea>] ? put_lock_stats.isra.9+0xe/0x20 [<ffffffff8105d1bb>] ? kthread_create_on_node+0x3f/0x3f [<ffffffff814b2092>] ret_from_fork+0x22/0x30 Code: 56 4d 6b ff 0c 41 55 41 54 53 48 83 ec 28 48 8b 15 ad 1e 00 00 44 8b 41 08 48 8b 87 c8 00 00 00 49 89 d5 4e 03 2c c5 80 b2 78 81 <46> 8b 74 38 04 45 3b 75 00 75 11 31 c0 83 39 00 0f 84 1c 01 00 RIP [<ffffffffa00356c1>] acpi_cpufreq_target+0x4f/0x190 [acpi_cpufreq] RSP <ffff88041b813c60> CR2: ffff881019b469f8 ---[ end trace 16d9fc7a17897d37 ]--- [ rjw: In some cases this bug may also cause incorrect frequencies to be selected by cpufreq governors. ] Fixes: 899bb6642f2a (cpufreq: skip invalid entries when searching the frequency) Link: http://marc.info/?l=linux-kernel&m=147672030714331&w=2 Reported-and-tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reported-and-tested-by: Jörg Otte <jrg.otte@gmail.com> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: 4.8+ <stable@vger.kernel.org> # 4.8+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-20sched/core, x86: Make struct thread_info arch specific againHeiko Carstens
The following commit: c65eacbe290b ("sched/core: Allow putting thread_info into task_struct") ... made 'struct thread_info' a generic struct with only a single ::flags member, if CONFIG_THREAD_INFO_IN_TASK_STRUCT=y is selected. This change however seems to be quite x86 centric, since at least the generic preemption code (asm-generic/preempt.h) assumes that struct thread_info also has a preempt_count member, which apparently was not true for x86. We could add a bit more #ifdefs to solve this problem too, but it seems to be much simpler to make struct thread_info arch specific again. This also makes the conversion to THREAD_INFO_IN_TASK_STRUCT a bit easier for architectures that have a couple of arch specific stuff in their thread_info definition. The arch specific stuff _could_ be moved to thread_struct. However keeping them in thread_info makes it easier: accessing thread_info members is simple, since it is at the beginning of the task_struct, while the thread_struct is at the end. At least on s390 the offsets needed to access members of the thread_struct (with task_struct as base) are too large for various asm instructions. This is not a problem when keeping these members within thread_info. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: keescook@chromium.org Cc: linux-arch@vger.kernel.org Link: http://lkml.kernel.org/r/1476901693-8492-2-git-send-email-mark.rutland@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-10-20mm: Change vm_is_stack_for_task() to vm_is_stack_for_current()Andy Lutomirski
Asking for a non-current task's stack can't be done without races unless the task is frozen in kernel mode. As far as I know, vm_is_stack_for_task() never had a safe non-current use case. The __unused annotation is because some KSTK_ESP implementations ignore their parameter, which IMO is further justification for this patch. Signed-off-by: Andy Lutomirski <luto@kernel.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Jann Horn <jann@thejh.net> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Linux API <linux-api@vger.kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tycho Andersen <tycho.andersen@canonical.com> Link: http://lkml.kernel.org/r/4c3f68f426e6c061ca98b4fc7ef85ffbb0a25b0c.1475257877.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-10-20iomap: add IOMAP_REPORTChristoph Hellwig
This allows the file system to tell a FIEMAP from a read operation, and thus avoids the need to report flags that aren't actually used in the read path. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-10-19target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLENicholas Bellinger
This patch addresses a bug where EXTENDED_COPY across multiple LUNs results in a CHECK_CONDITION when the source + destination are not located on the same physical node. ESX Host environments expect sense COPY_ABORTED w/ COPY TARGET DEVICE NOT REACHABLE to be returned when this occurs, in order to signal fallback to local copy method. As described in section 6.3.3 of spc4r22: "If it is not possible to complete processing of a segment because the copy manager is unable to establish communications with a copy target device, because the copy target device does not respond to INQUIRY, or because the data returned in response to INQUIRY indicates an unsupported logical unit, then the EXTENDED COPY command shall be terminated with CHECK CONDITION status, with the sense key set to COPY ABORTED, and the additional sense code set to COPY TARGET DEVICE NOT REACHABLE." Tested on v4.1.y with ESX v5.5u2+ with BlockCopy across multiple nodes. Reported-by: Nixon Vincent <nixon.vincent@calsoftinc.com> Tested-by: Nixon Vincent <nixon.vincent@calsoftinc.com> Cc: Nixon Vincent <nixon.vincent@calsoftinc.com> Tested-by: Dinesh Israni <ddi@datera.io> Signed-off-by: Dinesh Israni <ddi@datera.io> Cc: Dinesh Israni <ddi@datera.io> Cc: stable@vger.kernel.org # 3.14+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-10-19nvme.h: add an enum for cns valuesChristoph Hellwig
Ported over from nvme-cli. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-10-19nvme.h: don't use uuid_beChristoph Hellwig
This makes life easier for nvme-cli and we don't really need the uuid type anyway to start with. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Reviewed-by: Jay Freyensee <james_p_freyensee@linux.intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-10-19nvme.h: resync with nvme-cliChristoph Hellwig
Import a few updates to nvme.h from nvme-cli. This mostly includes a few new fields and error codes, but also a few renames that so far are only used in user space. Also one field is moved from an array of two le64 values to one of 16 u8 values so that we can more easily access it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-10-19nvme: Add tertiary number to NVME_VSGabriel Krisman Bertazi
NVMe 1.2.1 specification adds a tertiary element to the version number. This updates the macro and its callers to include the final number and fixup a single place in nvmet where the version was generated manually. Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-10-19Merge branch 'gup_flag-cleanups'Linus Torvalds
Merge the gup_flags cleanups from Lorenzo Stoakes: "This patch series adjusts functions in the get_user_pages* family such that desired FOLL_* flags are passed as an argument rather than implied by flags. The purpose of this change is to make the use of FOLL_FORCE explicit so it is easier to grep for and clearer to callers that this flag is being used. The use of FOLL_FORCE is an issue as it overrides missing VM_READ/VM_WRITE flags for the VMA whose pages we are reading from/writing to, which can result in surprising behaviour. The patch series came out of the discussion around commit 38e088546522 ("mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing"), which addressed a BUG_ON() being triggered when a page was faulted in with PROT_NONE set but having been overridden by FOLL_FORCE. do_numa_page() was run on the assumption the page _must_ be one marked for NUMA node migration as an actual PROT_NONE page would have been dealt with prior to this code path, however FOLL_FORCE introduced a situation where this assumption did not hold. See https://marc.info/?l=linux-mm&m=147585445805166 for the patch proposal" Additionally, there's a fix for an ancient bug related to FOLL_FORCE and FOLL_WRITE by me. [ This branch was rebased recently to add a few more acked-by's and reviewed-by's ] * gup_flag-cleanups: mm: replace access_process_vm() write parameter with gup_flags mm: replace access_remote_vm() write parameter with gup_flags mm: replace __access_remote_vm() write parameter with gup_flags mm: replace get_user_pages_remote() write/force parameters with gup_flags mm: replace get_user_pages() write/force parameters with gup_flags mm: replace get_vaddr_frames() write/force parameters with gup_flags mm: replace get_user_pages_locked() write/force parameters with gup_flags mm: replace get_user_pages_unlocked() write/force parameters with gup_flags mm: remove write/force parameters from __get_user_pages_unlocked() mm: remove write/force parameters from __get_user_pages_locked() mm: remove gup_flags FOLL_WRITE games from __get_user_pages()
2016-10-19mm: replace access_process_vm() write parameter with gup_flagsLorenzo Stoakes
This removes the 'write' argument from access_process_vm() and replaces it with 'gup_flags' as use of this function previously silently implied FOLL_FORCE, whereas after this patch callers explicitly pass this flag. We make this explicit as use of FOLL_FORCE can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-19mm: replace access_remote_vm() write parameter with gup_flagsLorenzo Stoakes
This removes the 'write' argument from access_remote_vm() and replaces it with 'gup_flags' as use of this function previously silently implied FOLL_FORCE, whereas after this patch callers explicitly pass this flag. We make this explicit as use of FOLL_FORCE can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-19mm: replace get_user_pages_remote() write/force parameters with gup_flagsLorenzo Stoakes
This removes the 'write' and 'force' from get_user_pages_remote() and replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers as use of this flag can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-19mm: replace get_user_pages() write/force parameters with gup_flagsLorenzo Stoakes
This removes the 'write' and 'force' from get_user_pages() and replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers as use of this flag can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-19mm: replace get_vaddr_frames() write/force parameters with gup_flagsLorenzo Stoakes
This removes the 'write' and 'force' from get_vaddr_frames() and replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers as use of this flag can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-19mm: replace get_user_pages_locked() write/force parameters with gup_flagsLorenzo Stoakes
This removes the 'write' and 'force' use from get_user_pages_locked() and replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers as use of this flag can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-19rtnetlink: Add rtnexthop offload flag to compare maskJiri Pirko
The offload flag is a status flag and should not be used by FIB semantics for comparison. Fixes: 37ed9493699c ("rtnetlink: add RTNH_F_EXTERNAL flag for fib offload") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: David S. Miller <davem@davemloft.net>