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2018-04-03NFSD: Clean up legacy NFS WRITE argument XDR decodersChuck Lever1-0/+2
Move common code in NFSD's legacy NFS WRITE decoders into a helper. The immediate benefit is reduction of code duplication and some nice micro-optimizations (see below). In the long term, this helper can perform a per-transport call-out to fill the rq_vec (say, using RDMA Reads). The legacy WRITE decoders and procs are changed to work like NFSv4, which constructs the rq_vec just before it is about to call vfs_writev. Why? Calling a transport call-out from the proc instead of the XDR decoder means that the incoming FH can be resolved to a particular filesystem and file. This would allow pages from the backing file to be presented to the transport to be filled, rather than presenting anonymous pages and copying or flipping them into the file's page cache later. I also prefer using the pages in rq_arg.pages, instead of pulling the data pages directly out of the rqstp::rq_pages array. This is currently the way the NFSv3 write decoder works, but the other two do not seem to take this approach. Fixing this removes the only reference to rq_pages found in NFSD, eliminating an NFSD assumption about how transports use the pages in rq_pages. Lastly, avoid setting up the first element of rq_vec as a zero- length buffer. This happens with an RDMA transport when a normal Read chunk is present because the data payload is in rq_arg's page list (none of it is in the head buffer). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-04-03svc: Report xprt dequeue latencyChuck Lever1-0/+1
Record the time between when a rqstp is enqueued on a transport and when it is dequeued. This includes how long the rqstp waits on the queue and how long it takes the kernel scheduler to wake a nfsd thread to service it. The svc_xprt_dequeue trace point is altered to include the number of microseconds between xprt_enqueue and xprt_dequeue. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-04-03sunrpc: Report per-RPC execution statsChuck Lever1-0/+1
Introduce a mechanism to report the server-side execution latency of each RPC. The goal is to enable user space to filter the trace record for latency outliers, build histograms, etc. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-04-03sunrpc: Save remote presentation address in svc_xprt for trace eventsChuck Lever1-0/+4
TP_printk defines a format string that is passed to user space for converting raw trace event records to something human-readable. My user space's printf (Oracle Linux 7), however, does not have a %pI format specifier. The result is that what is supposed to be an IP address in the output of "trace-cmd report" is just a string that says the field couldn't be displayed. To fix this, adopt the same approach as the client: maintain a pre- formated presentation address for occasions when %pI is not available. The location of the trace_svc_send trace point is adjusted so that rqst->rq_xprt is not NULL when the trace event is recorded. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-04-03svc: Simplify ->xpo_secure_portChuck Lever1-1/+1
Clean up: Instead of returning a value that is used to set or clear a bit, just make ->xpo_secure_port mangle that bit, and return void. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-03-21svcrdma: Consult max_qp_init_rd_atom when accepting connectionsChuck Lever1-3/+0
The target needs to return the lesser of the client's Inbound RDMA Read Queue Depth (IRD), provided in the connection parameters, and the local device's Outbound RDMA Read Queue Depth (ORD). The latter limit is max_qp_init_rd_atom, not max_qp_rd_atom. The svcrdma_ord value caps the ORD value for iWARP transports, which do not exchange ORD/IRD values at connection time. Since no other Linux kernel RDMA-enabled storage target sees fit to provide this cap, I'm removing it here too. initiator_depth is a u8, so ensure the computed ORD value does not overflow that field. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-02-18Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core fix from Thomas Gleixner: "A small fix which adds the missing for_each_cpu_wrap() stub for the UP case to avoid build failures" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpumask: Make for_each_cpu_wrap() available on UP as well
2018-02-17Merge tag 'for-linus-20180217' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+1
Pull block fixes from Jens Axboe: - NVMe pull request from Keith, with fixes all over the map for nvme. From various folks. - Classic polling fix, that avoids a latency issue where we still end up waiting for an interrupt in some cases. From Nitesh Shetty. - Comment typo fix from Minwoo Im. * tag 'for-linus-20180217' of git://git.kernel.dk/linux-block: block: fix a typo in comment of BLK_MQ_POLL_STATS_BKTS nvme-rdma: fix sysfs invoked reset_ctrl error flow nvmet: Change return code of discard command if not supported nvme-pci: Fix timeouts in connecting state nvme-pci: Remap CMB SQ entries on every controller reset nvme: fix the deadlock in nvme_update_formats blk: optimization for classic polling nvme: Don't use a stack buffer for keep-alive command nvme_fc: cleanup io completion nvme_fc: correct abort race condition on resets nvme: Fix discard buffer overrun nvme: delete NVME_CTRL_LIVE --> NVME_CTRL_CONNECTING transition nvme-rdma: use NVME_CTRL_CONNECTING state to mark init process nvme: rename NVME_CTRL_RECONNECTING state to NVME_CTRL_CONNECTING
2018-02-16Merge tag 'dma-mapping-4.16-2' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds1-1/+1
Pull dma-mapping fixes from Christoph Hellwig: "A few dma-mapping fixes for the fallout from the changes in rc1" * tag 'dma-mapping-4.16-2' of git://git.infradead.org/users/hch/dma-mapping: powerpc/macio: set a proper dma_coherent_mask dma-mapping: fix a comment typo dma-direct: comment the dma_direct_free calling convention dma-direct: mark as is_phys ia64: fix build failure with CONFIG_SWIOTLB
2018-02-16cpumask: Make for_each_cpu_wrap() available on UP as wellMichael Kelley1-0/+2
for_each_cpu_wrap() was originally added in the #else half of a large "#if NR_CPUS == 1" statement, but was omitted in the #if half. This patch adds the missing #if half to prevent compile errors when NR_CPUS is 1. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Michael Kelley <mhkelley@outlook.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kys@microsoft.com Cc: martin.petersen@oracle.com Cc: mikelley@microsoft.com Fixes: c743f0a5c50f ("sched/fair, cpumask: Export for_each_cpu_wrap()") Link: http://lkml.kernel.org/r/SN6PR1901MB2045F087F59450507D4FCC17CBF50@SN6PR1901MB2045.namprd19.prod.outlook.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-16Merge tag 'acpi-4.16-rc2' of ↵Linus Torvalds3-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "These fix a system resume regression from the 4.13 cycle, clean up device table handling in the ACPI core, update sysfs ABI documentation of a couple of drivers and add an expected switch fall-through marker to the SPCR table parsing code. Specifics: - Revert a problematic EC driver change from the 4.13 cycle that introduced a system resume regression on Thinkpad X240 (Rafael Wysocki). - Clean up device tables handling in the ACPI core and the related part of the device properties framework (Andy Shevchenko). - Update the sysfs ABI documentatio of the dock and the INT3407 special device drivers (Aishwarya Pant). - Add an expected switch fall-through marker to the SPCR table parsing code (Gustavo Silva)" * tag 'acpi-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: dock: document sysfs interface ACPI / DPTF: Document dptf_power sysfs atttributes device property: Constify device_get_match_data() ACPI / bus: Rename acpi_get_match_data() to acpi_device_get_match_data() ACPI / bus: Remove checks in acpi_get_match_data() ACPI / bus: Do not traverse through non-existed device table ACPI: SPCR: Mark expected switch fall-through in acpi_parse_spcr ACPI / EC: Restore polling during noirq suspend/resume phases
2018-02-16Merge tag 'pm-4.16-rc2' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "These fix a recently introduced build issue related to cpuidle and two bugs in the PM core, update cpuidle documentation and clean up memory allocations in the operating performance points (OPP) framework. Specifics: - Fix a recently introduced build issue related to cpuidle by covering all of the relevant combinations of Kconfig options in its header (Rafael Wysocki). - Add missing invocation of pm_runtime_drop_link() to the !CONFIG_SRCU variant of __device_link_del() (Lukas Wunner). - Fix unbalanced IRQ enable in the wakeup interrupts framework (Tony Lindgren). - Update cpuidle sysfs ABI documentation (Aishwarya Pant). - Use GFP_KERNEL instead of GFP_ATOMIC for allocating memory in dev_pm_opp_init_cpufreq_table() (Jia-Ju Bai)" * tag 'pm-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: cpuidle: Fix cpuidle_poll_state_init() prototype PM / runtime: Update links_count also if !CONFIG_SRCU PM / wakeirq: Fix unbalanced IRQ enable for wakeirq Documentation/ABI: update cpuidle sysfs documentation opp: cpu: Replace GFP_ATOMIC with GFP_KERNEL in dev_pm_opp_init_cpufreq_table
2018-02-15Merge branch 'locking-urgent-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Ingo Molnar: "This contains two qspinlock fixes and three documentation and comment fixes" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/semaphore: Update the file path in documentation locking/atomic/bitops: Document and clarify ordering semantics for failed test_and_{}_bit() locking/qspinlock: Ensure node->count is updated before initialising node locking/qspinlock: Ensure node is initialised before updating prev->next Documentation/locking/mutex-design: Update to reflect latest changes
2018-02-15block: fix a typo in comment of BLK_MQ_POLL_STATS_BKTSMinwoo Im1-1/+1
Update comment typo _consisitent_ to _consistent_ from following commit. commit 0206319fdfee ("blk-mq: Fix poll_stat for new size-based bucketing.") Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-02-15Merge branches 'pm-cpuidle' and 'pm-opp'Rafael J. Wysocki1-1/+1
* pm-cpuidle: PM: cpuidle: Fix cpuidle_poll_state_init() prototype Documentation/ABI: update cpuidle sysfs documentation * pm-opp: opp: cpu: Replace GFP_ATOMIC with GFP_KERNEL in dev_pm_opp_init_cpufreq_table
2018-02-15Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2-6/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Misc fixes all across the map: - /proc/kcore vsyscall related fixes - LTO fix - build warning fix - CPU hotplug fix - Kconfig NR_CPUS cleanups - cpu_has() cleanups/robustification - .gitignore fix - memory-failure unmapping fix - UV platform fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm, mm/hwpoison: Don't unconditionally unmap kernel 1:1 pages x86/error_inject: Make just_return_func() globally visible x86/platform/UV: Fix GAM Range Table entries less than 1GB x86/build: Add arch/x86/tools/insn_decoder_test to .gitignore x86/smpboot: Fix uncore_pci_remove() indexing bug when hot-removing a physical CPU x86/mm/kcore: Add vsyscall page to /proc/kcore conditionally vfs/proc/kcore, x86/mm/kcore: Fix SMAP fault when dumping vsyscall user page x86/Kconfig: Further simplify the NR_CPUS config x86/Kconfig: Simplify NR_CPUS config x86/MCE: Fix build warning introduced by "x86: do not use print_symbol()" x86/cpufeature: Update _static_cpu_has() to use all named variables x86/cpufeature: Reindent _static_cpu_has()
2018-02-15Merge branch 'x86-pti-for-linus' of ↵Linus Torvalds1-15/+21
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 PTI and Spectre related fixes and updates from Ingo Molnar: "Here's the latest set of Spectre and PTI related fixes and updates: Spectre: - Add entry code register clearing to reduce the Spectre attack surface - Update the Spectre microcode blacklist - Inline the KVM Spectre helpers to get close to v4.14 performance again. - Fix indirect_branch_prediction_barrier() - Fix/improve Spectre related kernel messages - Fix array_index_nospec_mask() asm constraint - KVM: fix two MSR handling bugs PTI: - Fix a paranoid entry PTI CR3 handling bug - Fix comments objtool: - Fix paranoid_entry() frame pointer warning - Annotate WARN()-related UD2 as reachable - Various fixes - Add Add Peter Zijlstra as objtool co-maintainer Misc: - Various x86 entry code self-test fixes - Improve/simplify entry code stack frame generation and handling after recent heavy-handed PTI and Spectre changes. (There's two more WIP improvements expected here.) - Type fix for cache entries There's also some low risk non-fix changes I've included in this branch to reduce backporting conflicts: - rename a confusing x86_cpu field name - de-obfuscate the naming of single-TLB flushing primitives" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits) x86/entry/64: Fix CR3 restore in paranoid_exit() x86/cpu: Change type of x86_cache_size variable to unsigned int x86/spectre: Fix an error message x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping selftests/x86/mpx: Fix incorrect bounds with old _sigfault x86/mm: Rename flush_tlb_single() and flush_tlb_one() to __flush_tlb_one_[user|kernel]() x86/speculation: Add <asm/msr-index.h> dependency nospec: Move array_index_nospec() parameter checking into separate macro x86/speculation: Fix up array_index_nospec_mask() asm constraint x86/debug: Use UD2 for WARN() x86/debug, objtool: Annotate WARN()-related UD2 as reachable objtool: Fix segfault in ignore_unreachable_insn() selftests/x86: Disable tests requiring 32-bit support on pure 64-bit systems selftests/x86: Do not rely on "int $0x80" in single_step_syscall.c selftests/x86: Do not rely on "int $0x80" in test_mremap_vdso.c selftests/x86: Fix build bug caused by the 5lvl test which has been moved to the VM directory selftests/x86/pkeys: Remove unused functions selftests/x86: Clean up and document sscanf() usage selftests/x86: Fix vDSO selftest segfault for vsyscall=none x86/entry/64: Remove the unused 'icebp' macro ...
2018-02-15nospec: Move array_index_nospec() parameter checking into separate macroWill Deacon1-15/+21
For architectures providing their own implementation of array_index_mask_nospec() in asm/barrier.h, attempting to use WARN_ONCE() to complain about out-of-range parameters using WARN_ON() results in a mess of mutually-dependent include files. Rather than unpick the dependencies, simply have the core code in nospec.h perform the checking for us. Signed-off-by: Will Deacon <will.deacon@arm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1517840166-15399-1-git-send-email-will.deacon@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-13x86/mm, mm/hwpoison: Don't unconditionally unmap kernel 1:1 pagesTony Luck1-6/+0
In the following commit: ce0fa3e56ad2 ("x86/mm, mm/hwpoison: Clear PRESENT bit for kernel 1:1 mappings of poison pages") ... we added code to memory_failure() to unmap the page from the kernel 1:1 virtual address space to avoid speculative access to the page logging additional errors. But memory_failure() may not always succeed in taking the page offline, especially if the page belongs to the kernel. This can happen if there are too many corrected errors on a page and either mcelog(8) or drivers/ras/cec.c asks to take a page offline. Since we remove the 1:1 mapping early in memory_failure(), we can end up with the page unmapped, but still in use. On the next access the kernel crashes :-( There are also various debug paths that call memory_failure() to simulate occurrence of an error. Since there is no actual error in memory, we don't need to map out the page for those cases. Revert most of the previous attempt and keep the solution local to arch/x86/kernel/cpu/mcheck/mce.c. Unmap the page only when: 1) there is a real error 2) memory_failure() succeeds. All of this only applies to 64-bit systems. 32-bit kernel doesn't map all of memory into kernel space. It isn't worth adding the code to unmap the piece that is mapped because nobody would run a 32-bit kernel on a machine that has recoverable machine checks. Signed-off-by: Tony Luck <tony.luck@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@suse.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert (Persistent Memory) <elliott@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mm@kvack.org Cc: stable@vger.kernel.org #v4.14 Fixes: ce0fa3e56ad2 ("x86/mm, mm/hwpoison: Clear PRESENT bit for kernel 1:1 mappings of poison pages") Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-13locking/semaphore: Update the file path in documentationTycho Andersen1-1/+1
While reading this header I noticed that the locking stuff has moved to kernel/locking/*, so update the path in semaphore.h to point to that. Signed-off-by: Tycho Andersen <tycho@tycho.ws> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20180201114119.1090-1-tycho@tycho.ws Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-13vfs/proc/kcore, x86/mm/kcore: Fix SMAP fault when dumping vsyscall user pageJia Zhang1-0/+1
Commit: df04abfd181a ("fs/proc/kcore.c: Add bounce buffer for ktext data") ... introduced a bounce buffer to work around CONFIG_HARDENED_USERCOPY=y. However, accessing the vsyscall user page will cause an SMAP fault. Replace memcpy() with copy_from_user() to fix this bug works, but adding a common way to handle this sort of user page may be useful for future. Currently, only vsyscall page requires KCORE_USER. Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: jolsa@redhat.com Link: http://lkml.kernel.org/r/1518446694-21124-2-git-send-email-zhang.jia@linux.alibaba.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-12Merge branch 'linus' of ↵Linus Torvalds2-2/+9
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This fixes the following issues: - oversize stack frames on mn10300 in sha3-generic - warning on old compilers in sha3-generic - API error in sun4i_ss_prng - potential dead-lock in sun4i_ss_prng - null-pointer dereference in sha512-mb - endless loop when DECO acquire fails in caam - kernel oops when hashing empty message in talitos" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: sun4i_ss_prng - convert lock to _bh in sun4i_ss_prng_generate crypto: sun4i_ss_prng - fix return value of sun4i_ss_prng_generate crypto: caam - fix endless loop when DECO acquire fails crypto: sha3-generic - Use __optimize to support old compilers compiler-gcc.h: __nostackprotector needs gcc-4.4 and up compiler-gcc.h: Introduce __optimize function attribute crypto: sha3-generic - deal with oversize stack frames crypto: talitos - fix Kernel Oops on hashing an empty file crypto: sha512-mb - initialize pending lengths correctly
2018-02-12dma-mapping: fix a comment typoChristoph Hellwig1-1/+1
Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-02-12PM: cpuidle: Fix cpuidle_poll_state_init() prototypeRafael J. Wysocki1-1/+1
Commit f85942207516 (x86: PM: Make APM idle driver initialize polling state) made apm_init() call cpuidle_poll_state_init(), but that only is defined for CONFIG_CPU_IDLE set, so make the empty stub of it available for CONFIG_CPU_IDLE unset too to fix the resulting build issue. Fixes: f85942207516 (x86: PM: Make APM idle driver initialize polling state) Cc: 4.14+ <stable@vger.kernel.org> # 4.14+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-12device property: Constify device_get_match_data()Andy Shevchenko3-5/+5
Constify device_get_match_data() as OF and ACPI variants return constant value. Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-12ACPI / bus: Rename acpi_get_match_data() to acpi_device_get_match_data()Andy Shevchenko1-2/+2
Do the renaming to be consistent with its sibling, i.e. of_device_get_match_data(). No functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-12unify {de,}mangle_poll(), get rid of kernel-side POLL...Al Viro1-0/+24
except, again, POLLFREE and POLL_BUSY_LOOP. With this, we finally get to the promised end result: - POLL{IN,OUT,...} are plain integers and *not* in __poll_t, so any stray instances of ->poll() still using those will be caught by sparse. - eventpoll.c and select.c warning-free wrt __poll_t - no more kernel-side definitions of POLL... - userland ones are visible through the entire kernel (and used pretty much only for mangle/demangle) - same behavior as after the first series (i.e. sparc et.al. epoll(2) working correctly). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-12vfs: do bulk POLL* -> EPOLL* replacementLinus Torvalds1-8/+8
This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-12Merge branch 'work.poll2' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more poll annotation updates from Al Viro: "This is preparation to solving the problems you've mentioned in the original poll series. After this series, the kernel is ready for running for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done as a for bulk search-and-replace. After that, the kernel is ready to apply the patch to unify {de,}mangle_poll(), and then get rid of kernel-side POLL... uses entirely, and we should be all done with that stuff. Basically, that's what you suggested wrt KPOLL..., except that we can use EPOLL... instead - they already are arch-independent (and equal to what is currently kernel-side POLL...). After the preparations (in this series) switch to returning EPOLL... from ->poll() instances is completely mechanical and kernel-side POLL... can go away. The last step (killing kernel-side POLL... and unifying {de,}mangle_poll() has to be done after the search-and-replace job, since we need userland-side POLL... for unified {de,}mangle_poll(), thus the cherry-pick at the last step. After that we will have: - POLL{IN,OUT,...} *not* in __poll_t, so any stray instances of ->poll() still using those will be caught by sparse. - eventpoll.c and select.c warning-free wrt __poll_t - no more kernel-side definitions of POLL... - userland ones are visible through the entire kernel (and used pretty much only for mangle/demangle) - same behavior as after the first series (i.e. sparc et.al. epoll(2) working correctly)" * 'work.poll2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: annotate ep_scan_ready_list() ep_send_events_proc(): return result via esed->res preparation to switching ->poll() to returning EPOLL... add EPOLLNVAL, annotate EPOLL... and event_poll->event use linux/poll.h instead of asm/poll.h xen: fix poll misannotation smc: missing poll annotations
2018-02-11Merge tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2-1/+619
Pull KVM updates from Radim Krčmář: "ARM: - icache invalidation optimizations, improving VM startup time - support for forwarded level-triggered interrupts, improving performance for timers and passthrough platform devices - a small fix for power-management notifiers, and some cosmetic changes PPC: - add MMIO emulation for vector loads and stores - allow HPT guests to run on a radix host on POWER9 v2.2 CPUs without requiring the complex thread synchronization of older CPU versions - improve the handling of escalation interrupts with the XIVE interrupt controller - support decrement register migration - various cleanups and bugfixes. s390: - Cornelia Huck passed maintainership to Janosch Frank - exitless interrupts for emulated devices - cleanup of cpuflag handling - kvm_stat counter improvements - VSIE improvements - mm cleanup x86: - hypervisor part of SEV - UMIP, RDPID, and MSR_SMI_COUNT emulation - paravirtualized TLB shootdown using the new KVM_VCPU_PREEMPTED bit - allow guests to see TOPOEXT, GFNI, VAES, VPCLMULQDQ, and more AVX512 features - show vcpu id in its anonymous inode name - many fixes and cleanups - per-VCPU MSR bitmaps (already merged through x86/pti branch) - stable KVM clock when nesting on Hyper-V (merged through x86/hyperv)" * tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (197 commits) KVM: PPC: Book3S: Add MMIO emulation for VMX instructions KVM: PPC: Book3S HV: Branch inside feature section KVM: PPC: Book3S HV: Make HPT resizing work on POWER9 KVM: PPC: Book3S HV: Fix handling of secondary HPTEG in HPT resizing code KVM: PPC: Book3S PR: Fix broken select due to misspelling KVM: x86: don't forget vcpu_put() in kvm_arch_vcpu_ioctl_set_sregs() KVM: PPC: Book3S PR: Fix svcpu copying with preemption enabled KVM: PPC: Book3S HV: Drop locks before reading guest memory kvm: x86: remove efer_reload entry in kvm_vcpu_stat KVM: x86: AMD Processor Topology Information x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested kvm: embed vcpu id to dentry of vcpu anon inode kvm: Map PFN-type memory regions as writable (if possible) x86/kvm: Make it compile on 32bit and with HYPYERVISOR_GUEST=n KVM: arm/arm64: Fixup userspace irqchip static key optimization KVM: arm/arm64: Fix userspace_irqchip_in_use counting KVM: arm/arm64: Fix incorrect timer_is_pending logic MAINTAINERS: update KVM/s390 maintainers MAINTAINERS: add Halil as additional vfio-ccw maintainer MAINTAINERS: add David as a reviewer for KVM/s390 ...
2018-02-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds3-6/+13
Pull networking fixes from David Miller: 1) Make allocations less aggressive in x_tables, from Minchal Hocko. 2) Fix netfilter flowtable Kconfig deps, from Pablo Neira Ayuso. 3) Fix connection loss problems in rtlwifi, from Larry Finger. 4) Correct DRAM dump length for some chips in ath10k driver, from Yu Wang. 5) Fix ABORT handling in rxrpc, from David Howells. 6) Add SPDX tags to Sun networking drivers, from Shannon Nelson. 7) Some ipv6 onlink handling fixes, from David Ahern. 8) Netem packet scheduler interval calcualtion fix from Md. Islam. 9) Don't put crypto buffers on-stack in rxrpc, from David Howells. 10) Fix handling of error non-delivery status in netlink multicast delivery over multiple namespaces, from Nicolas Dichtel. 11) Missing xdp flush in tuntap driver, from Jason Wang. 12) Synchonize RDS protocol netns/module teardown with rds object management, from Sowini Varadhan. 13) Add nospec annotations to mpls, from Dan Williams. 14) Fix SKB truesize handling in TIPC, from Hoang Le. 15) Interrupt masking fixes in stammc from Niklas Cassel. 16) Don't allow ptr_ring objects to be sized outside of kmalloc's limits, from Jason Wang. 17) Don't allow SCTP chunks to be built which will have a length exceeding the chunk header's 16-bit length field, from Alexey Kodanev. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (82 commits) ibmvnic: Remove skb->protocol checks in ibmvnic_xmit bpf: fix rlimit in reuseport net selftest sctp: verify size of a new chunk in _sctp_make_chunk() s390/qeth: fix SETIP command handling s390/qeth: fix underestimated count of buffer elements ptr_ring: try vmalloc() when kmalloc() fails ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE net: stmmac: remove redundant enable of PMT irq net: stmmac: rename GMAC_INT_DEFAULT_MASK for dwmac4 net: stmmac: discard disabled flags in interrupt status register ibmvnic: Reset long term map ID counter tools/libbpf: handle issues with bpf ELF objects containing .eh_frames selftests/bpf: add selftest that use test_libbpf_open selftests/bpf: add test program for loading BPF ELF files tools/libbpf: improve the pr_debug statements to contain section numbers bpf: Sync kernel ABI header with tooling header for bpf_common.h net: phy: fix phy_start to consider PHY_IGNORE_INTERRUPT net: thunder: change q_len's type to handle max ring size tipc: fix skb truesize/datasize ratio control net/sched: cls_u32: fix cls_u32 on filter replace ...
2018-02-10Merge tag 'nfs-for-4.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds1-0/+3
Pull more NFS client updates from Trond Myklebust: "A few bugfixes and some small sunrpc latency/performance improvements before the merge window closes: Stable fixes: - fix an incorrect calculation of the RDMA send scatter gather element limit - fix an Oops when attempting to free resources after RDMA device removal Bugfixes: - SUNRPC: Ensure we always release the TCP socket in a timely fashion when the connection is shut down. - SUNRPC: Don't call __UDPX_INC_STATS() from a preemptible context Latency/Performance: - SUNRPC: Queue latency sensitive socket tasks to the less contended xprtiod queue - SUNRPC: Make the xprtiod workqueue unbounded. - SUNRPC: Make the rpciod workqueue unbounded" * tag 'nfs-for-4.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: SUNRPC: Don't call __UDPX_INC_STATS() from a preemptible context fix parallelism for rpc tasks Make the xprtiod workqueue unbounded. SUNRPC: Queue latency-sensitive socket tasks to xprtiod SUNRPC: Ensure we always close the socket after a connection shuts down xprtrdma: Fix BUG after a device removal xprtrdma: Fix calculation of ri_max_send_sges
2018-02-09ptr_ring: try vmalloc() when kmalloc() failsJason Wang1-5/+8
This patch switch to use kvmalloc_array() for using a vmalloc() fallback to help in case kmalloc() fails. Reported-by: syzbot+e4d4f9ddd4295539735d@syzkaller.appspotmail.com Fixes: 2e0ab8ca83c12 ("ptr_ring: array based FIFO for pointers") Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZEJason Wang1-0/+2
To avoid slab to warn about exceeded size, fail early if queue occupies more than KMALLOC_MAX_SIZE. Reported-by: syzbot+e4d4f9ddd4295539735d@syzkaller.appspotmail.com Fixes: 2e0ab8ca83c12 ("ptr_ring: array based FIFO for pointers") Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-09Merge tag 'acpi-part2-4.16-rc1' of ↵Linus Torvalds2-4/+7
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "These are mostly fixes and cleanups, a few new quirks, a couple of updates related to the handling of ACPI tables and ACPICA copyrights refreshment. Specifics: - Update the ACPICA kernel code to upstream revision 20180105 including: * Assorted fixes (Jung-uk Kim) * Support for X32 ABI compilation (Anuj Mittal) * Update of ACPICA copyrights to 2018 (Bob Moore) - Prepare for future modifications to avoid executing the _STA control method too early (Hans de Goede) - Make the processor performance control library code ignore _PPC notifications if they cannot be handled and fix up the C1 idle state definition when it is used as a fallback state (Chen Yu, Yazen Ghannam) - Make it possible to use the SPCR table on x86 and to replace the original IORT table with a new one from initrd (Prarit Bhargava, Shunyong Yang) - Add battery-related quirks for Asus UX360UA and UX410UAK and add quirks for table parsing on Dell XPS 9570 and Precision M5530 (Kai Heng Feng) - Address static checker warnings in the CPPC code (Gustavo Silva) - Avoid printing a raw pointer to the kernel log in the smart battery driver (Greg Kroah-Hartman)" * tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: sbshc: remove raw pointer from printk() message ACPI: SPCR: Make SPCR available to x86 ACPI / CPPC: Use 64-bit arithmetic instead of 32-bit ACPI / tables: Add IORT to injectable table list ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530 ACPICA: Update version to 20180105 ACPICA: All acpica: Update copyrights to 2018 ACPI / processor: Set default C1 idle state description ACPI / battery: Add quirk for Asus UX360UA and UX410UAK ACPI: processor_perflib: Do not send _PPC change notification if not ready ACPI / scan: Use acpi_bus_get_status() to initialize ACPI_TYPE_DEVICE devs ACPI / bus: Do not call _STA on battery devices with unmet dependencies PCI: acpiphp_ibm: prepare for acpi_get_object_info() no longer returning status ACPI: export acpi_bus_get_status_handle() ACPICA: Add a missing pair of parentheses ACPICA: Prefer ACPI_TO_POINTER() over ACPI_ADD_PTR() ACPICA: Avoid NULL pointer arithmetic ACPICA: Linux: add support for X32 ABI compilation ACPI / video: Use true for boolean value
2018-02-09Merge tag 'pm-part2-4.16-rc1' of ↵Linus Torvalds1-46/+79
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These are mostly fixes and cleanups and removal of the no longer needed at32ap-cpufreq driver. Specifics: - Drop the at32ap-cpufreq driver which is useless after the removal of the corresponding arch (Corentin LABBE). - Fix a regression from the 4.14 cycle in the APM idle driver by making it initialize the polling state properly (Rafael Wysocki). - Fix a crash on failing system suspend due to a missing check in the cpufreq core (Bo Yan). - Make the intel_pstate driver initialize the hardware-managed P-state control (HWP) feature on CPU0 upon resume from system suspend if HWP had been enabled before the system was suspended (Chen Yu). - Fix up the SCPI cpufreq driver after recent changes (Sudeep Holla, Wei Yongjun). - Avoid pointer subtractions during frequency table walks in cpufreq (Dominik Brodowski). - Avoid the check for ProcFeedback in ST/CZ in the cpufreq driver for AMD processors and add a MODULE_ALIAS for cpufreq on ARM IMX (Akshu Agrawal, Nicolas Chauvet). - Fix the prototype of swsusp_arch_resume() on x86 (Arnd Bergmann). - Fix up the parsing of power domains DT data (Ulf Hansson)" * tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: arm: imx: Add MODULE_ALIAS for cpufreq cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx() cpufreq: intel_pstate: Enable HWP during system resume on CPU0 cpufreq: scpi: fix error return code in scpi_cpufreq_init() x86: hibernate: fix swsusp_arch_resume() prototype PM / domains: Fix up domain-idle-states OF parsing cpufreq: scpi: fix static checker warning cdev isn't an ERR_PTR cpufreq: remove at32ap-cpufreq cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZ x86: PM: Make APM idle driver initialize polling state cpufreq: Skip cpufreq resume if it's not suspended
2018-02-09Merge tag 'nfsd-4.16' of git://linux-nfs.org/~bfields/linuxLinus Torvalds1-2/+0
Pull nfsd update from Bruce Fields: "A fairly small update this time around. Some cleanup, RDMA fixes, overlayfs fixes, and a fix for an NFSv4 state bug. The bigger deal for nfsd this time around was Jeff Layton's already-merged i_version patches" * tag 'nfsd-4.16' of git://linux-nfs.org/~bfields/linux: svcrdma: Fix Read chunk round-up NFSD: hide unused svcxdr_dupstr() nfsd: store stat times in fill_pre_wcc() instead of inode times nfsd: encode stat->mtime for getattr instead of inode->i_mtime nfsd: return RESOURCE not GARBAGE_ARGS on too many ops nfsd4: don't set lock stateid's sc_type to CLOSED nfsd: Detect unhashed stids in nfsd4_verify_open_stid() sunrpc: remove dead code in svc_sock_setbufsize svcrdma: Post Receives in the Receive completion handler nfsd4: permit layoutget of executable-only files lockd: convert nlm_rqst.a_count from atomic_t to refcount_t lockd: convert nlm_lockowner.count from atomic_t to refcount_t lockd: convert nsm_handle.sm_count from atomic_t to refcount_t
2018-02-09Merge branch 'idr-2018-02-06' of git://git.infradead.org/users/willy/linux-daxLinus Torvalds2-115/+76
Pull idr updates from Matthew Wilcox: - test-suite improvements - replace the extended API by improving the normal API - performance improvement for IDRs which are 1-based rather than 0-based - add documentation * 'idr-2018-02-06' of git://git.infradead.org/users/willy/linux-dax: idr: Add documentation idr: Make 1-based IDRs more efficient idr: Warn if old iterators see large IDs idr: Rename idr_for_each_entry_ext idr: Remove idr_alloc_ext cls_u32: Convert to idr_alloc_u32 cls_u32: Reinstate cyclic allocation cls_flower: Convert to idr_alloc_u32 cls_bpf: Convert to use idr_alloc_u32 cls_basic: Convert to use idr_alloc_u32 cls_api: Convert to idr_alloc_u32 net sched actions: Convert to use idr_alloc_u32 idr: Add idr_alloc_u32 helper idr: Delete idr_find_ext function idr: Delete idr_replace_ext function idr: Delete idr_remove_ext function IDR test suite: Check handling negative end correctly idr test suite: Fix ida_test_random() radix tree test suite: Remove ARRAY_SIZE
2018-02-08Merge tag 'wireless-drivers-next-for-davem-2018-02-08' of ↵David S. Miller1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for 4.16 The most important here is the ssb fix, it has been reported by the users frequently and the fix just missed the final v4.15. Also numerous other fixes, mt76 had multiple problems with aggregation and a long standing unaligned access bug in rtlwifi is finally fixed. Major changes: ath10k * correct firmware RAM dump length for QCA6174/QCA9377 * add new QCA988X device id * fix a kernel panic during pci probe * revert a recent commit which broke ath10k firmware metadata parsing ath9k * fix a noise floor regression introduced during the merge window * add new device id rtlwifi * fix unaligned access seen on ARM architecture mt76 * various aggregation fixes which fix connection stalls ssb * fix b43 and b44 on non-MIPS which broke in v4.15-rc9 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08net: Extra '_get' in declaration of arch_get_platform_mac_addressMathieu Malaterre1-1/+1
In commit c7f5d105495a ("net: Add eth_platform_get_mac_address() helper."), two declarations were added: int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr); unsigned char *arch_get_platform_get_mac_address(void); An extra '_get' was introduced in arch_get_platform_get_mac_address, remove it. Fix compile warning using W=1: CC net/ethernet/eth.o net/ethernet/eth.c:523:24: warning: no previous prototype for ‘arch_get_platform_mac_address’ [-Wmissing-prototypes] unsigned char * __weak arch_get_platform_mac_address(void) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ AR net/ethernet/built-in.o Signed-off-by: Mathieu Malaterre <malat@debian.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08Merge tag 'iommu-updates-v4.16' of ↵Linus Torvalds2-4/+3
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: "This time there are not a lot of changes coming from the IOMMU side. That is partly because I returned from my parental leave late in the development process and probably partly because everyone was busy with Spectre and Meltdown mitigation work and didn't find the time for IOMMU work. So here are the few changes that queued up for this merge window: - 5-level page-table support for the Intel IOMMU. - error reporting improvements for the AMD IOMMU driver - additional DT bindings for ipmmu-vmsa (Renesas) - small fixes and cleanups" * tag 'iommu-updates-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu: Clean up of_iommu_init_fn iommu/ipmmu-vmsa: Remove redundant of_iommu_init_fn hook iommu/msm: Claim bus ops on probe iommu/vt-d: Enable 5-level paging mode in the PASID entry iommu/vt-d: Add a check for 5-level paging support iommu/vt-d: Add a check for 1GB page support iommu/vt-d: Enable upto 57 bits of domain address width iommu/vt-d: Use domain instead of cache fetching iommu/exynos: Don't unconditionally steal bus ops iommu/omap: Fix debugfs_create_*() usage iommu/vt-d: clean up pr_irq if request_threaded_irq fails iommu: Check the result of iommu_group_get() for NULL iommu/ipmmu-vmsa: Add r8a779(70|95) DT bindings iommu/ipmmu-vmsa: Add r8a7796 DT binding iommu/amd: Set the device table entry PPR bit for IOMMU V2 devices iommu/amd - Record more information about unknown events
2018-02-08Merge tag 'arm64-upstream' of ↵Linus Torvalds2-2/+176
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull more arm64 updates from Catalin Marinas: "As I mentioned in the last pull request, there's a second batch of security updates for arm64 with mitigations for Spectre/v1 and an improved one for Spectre/v2 (via a newly defined firmware interface API). Spectre v1 mitigation: - back-end version of array_index_mask_nospec() - masking of the syscall number to restrict speculation through the syscall table - masking of __user pointers prior to deference in uaccess routines Spectre v2 mitigation update: - using the new firmware SMC calling convention specification update - removing the current PSCI GET_VERSION firmware call mitigation as vendors are deploying new SMCCC-capable firmware - additional branch predictor hardening for synchronous exceptions and interrupts while in user mode Meltdown v3 mitigation update: - Cavium Thunder X is unaffected but a hardware erratum gets in the way. The kernel now starts with the page tables mapped as global and switches to non-global if kpti needs to be enabled. Other: - Theoretical trylock bug fixed" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (38 commits) arm64: Kill PSCI_GET_VERSION as a variant-2 workaround arm64: Add ARM_SMCCC_ARCH_WORKAROUND_1 BP hardening support arm/arm64: smccc: Implement SMCCC v1.1 inline primitive arm/arm64: smccc: Make function identifiers an unsigned quantity firmware/psci: Expose SMCCC version through psci_ops firmware/psci: Expose PSCI conduit arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support arm/arm64: KVM: Turn kvm_psci_version into a static inline arm/arm64: KVM: Advertise SMCCC v1.1 arm/arm64: KVM: Implement PSCI 1.0 support arm/arm64: KVM: Add smccc accessors to PSCI code arm/arm64: KVM: Add PSCI_VERSION helper arm/arm64: KVM: Consolidate the PSCI include files arm64: KVM: Increment PC after handling an SMC trap arm: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls arm64: entry: Apply BP hardening for suspicious interrupts from EL0 arm64: entry: Apply BP hardening for high-priority synchronous exceptions arm64: futex: Mask __user pointers prior to dereference ...
2018-02-08compiler-gcc.h: __nostackprotector needs gcc-4.4 and upGeert Uytterhoeven1-2/+1
Gcc versions before 4.4 do not recognize the __optimize__ compiler attribute: warning: ‘__optimize__’ attribute directive ignored Fixes: 7375ae3a0b79ea07 ("compiler-gcc.h: Introduce __nostackprotector function attribute") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-02-08compiler-gcc.h: Introduce __optimize function attributeGeert Uytterhoeven2-0/+8
Create a new function attribute __optimize, which allows to specify an optimization level on a per-function basis. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-02-08Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-domains'Rafael J. Wysocki1-46/+79
* pm-cpufreq: arm: imx: Add MODULE_ALIAS for cpufreq cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx() cpufreq: intel_pstate: Enable HWP during system resume on CPU0 cpufreq: scpi: fix error return code in scpi_cpufreq_init() cpufreq: scpi: fix static checker warning cdev isn't an ERR_PTR cpufreq: remove at32ap-cpufreq cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZ cpufreq: Skip cpufreq resume if it's not suspended * pm-cpuidle: x86: PM: Make APM idle driver initialize polling state * pm-domains: PM / domains: Fix up domain-idle-states OF parsing
2018-02-08cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx()Dominik Brodowski1-46/+79
Pointer subtraction is slow and tedious. Therefore, replace all instances where cpufreq_for_each_{valid_,}entry loops contained such substractions with an iteration macro providing an index to the frequency_table entry. Suggested-by: Al Viro <viro@ZenIV.linux.org.uk> Link: http://lkml.kernel.org/r/20180120020237.GM13338@ZenIV.linux.org.uk Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-08Merge tag 'iversion-v4.16-2' of ↵Linus Torvalds1-11/+11
git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux Pull inode->i_version cleanup from Jeff Layton: "Goffredo went ahead and sent a patch to rename this function, and reverse its sense, as we discussed last week. The patch is very straightforward and I figure it's probably best to go ahead and merge this to get the API as settled as possible" * tag 'iversion-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: iversion: Rename make inode_cmp_iversion{+raw} to inode_eq_iversion{+raw}
2018-02-08Merge tag 'fbdev-v4.16' of git://github.com/bzolnier/linuxLinus Torvalds1-1/+4
Pull fbdev updates from Bartlomiej Zolnierkiewicz: "There is nothing really major here: - fix display-timings lookup in the Device Tree in atmel_lcdfb driver (Johan Hovold) - fix video mode and line_length to be set correctly in vfb driver (Pieter "PoroCYon" Sluys) - fix returning nonsensical values to the user-space on GIO_FONTX ioctl when using dummy console (Nicolas Pitre) - add missing license tag to mmpfb driver (Arnd Bergmann) - convert radeonfb and pxa3xx_gcu drivers to use ktime_get[_ts64]() instead of the deprecated do_gettimeofday() (Arnd Bergmann) - switch udlfb driver from using the pr_*() logging functions to the dev_*() ones + related cleanups (Ladislav Michl) - use __raw I/O accessors also on arm64 (Ji Zhang) - fix Kconfig help text for intelfb driver (Randy Dunlap) - do not duplicate features data in omapfb driver (Ladislav Michl) - misc cleanups (Colin Ian King, Markus Elfring, Rasmus Villemoes, Vasyl Gomonovych, Himanshu Jha, Michael Trimarchi)" * tag 'fbdev-v4.16' of git://github.com/bzolnier/linux: (25 commits) video: udlfb: Switch from the pr_*() to the dev_*() logging functions video: udlfb: Constify read only data video: fbdev/mmp: add MODULE_LICENSE console/dummy: leave .con_font_get set to NULL fbdev: mxsfb: use framebuffer_alloc in the correct way video: udlfb: Do not name private data 'dev' video: udlfb: Remove noisy warnings video: udlfb: Remove redundant gdev variable video: udlfb: Remove unnecessary local variable fbdev: auo_k190x: Use zeroing memory allocator instead of allocator/memset vfb: fix video mode and line_length being set when loaded fbdev: arm64 use __raw I/O memory api omapfb: dss: Do not duplicate features data video: fbdev: omap2: Use PTR_ERR_OR_ZERO() fbdev: au1200fb: delete duplicate header contents fbdev: pxa3xx: use ktime_get_ts64 for time stamps fbdev: radeon: use ktime_get() for HZ calibration video: smscufx: Improve a size determination in two functions video: udlfb: Delete an unnecessary return statement in two functions video: udlfb: Improve a size determination in dlfb_alloc_urb_list() ...
2018-02-07SUNRPC: Queue latency-sensitive socket tasks to xprtiodTrond Myklebust1-0/+3
The response to a write_space notification is very latency sensitive, so we should queue it to the lower latency xprtiod_workqueue. This is something we already do for the other cases where an rpc task holds the transport XPRT_LOCKED bitlock. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2018-02-07PCI: Add Ubiquiti Networks vendor IDTobias Schramm1-0/+2
Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Tobias Schramm <tobleminer@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
generated by cgit v1.2.3 (git 2.39.0) at 2025-03-01 12:49:10 +0300