- 31 Jul, 2016 4 commits
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Rich Felker authored
SH3/4 (with MMU) have a virtually indexed cache, requiring explicit work to avoid consistency problems arising from having the same physical address range cached in multiple cache lines. This is unneeded for the NOMMU case, and some of the resulting code paths (kmap_coherent) don't work. SH2 only avoided this problem by having a 4-way associative cache with way size equal to the page size (4k), yielding no cache index bits outside of the page offset and thus no aliases. Signed-off-by:
Rich Felker <dalias@libc.org>
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Rich Felker authored
Up until now, the SH version of the sigcontext structure, and thus mcontext_t/ucontext_t, varied depending on the cpu model the kernel was built to run on. SH-4 (including SH-4A) and SH-2A used the form with space for FPU registers, and everything else used a form that omitted them. From a userspace perspective, however, the structure layout must be fixed for a given ABI. Traditionally glibc and uClibc used the form with space for FPU registers only when __SH4__ (which implies FPU; __SH4_NOFPU__ is the predefined macro for SH-4 but with no-FPU ABI) was defined. As a result: - SH-4 no-FPU programs never matched kernel sigcontext. - SH-3 programs did not match kernel sigcontext if run on SH-4, despite an apparent intent that they be compatible. - SH-2 and SH-2A programs (using uClibc) did not match kernel sigcontext if run on SH-2A. The mismatch might seem inconsequential because it occurs at the end of the sigcontext structure, but sigcontext is embedded as uc_mcontext in ucontext_t, where it is followed by uc_sigmask, an important member for signal handlers to have access to. In particular, access to uc_sigmask is necessary for a correct implementation of thread cancellation. It would be possible to retain support for both sigcontext ABIs via a personality mechanism, but since many configurations were already broken and nobody noticed, and since there are very few if any users of legacy no-FPU models anymore, I have opted to just remove the variation and always include space for the FPU registers in sigcontext. This was proposed and discussed on a thread "SH sigcontext ABI is broken" cross-posted to linux-sh, libc-alpha, and musl libc lists in June 2015, and no objections were raised. Signed-off-by:
Rich Felker <dalias@libc.org>
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Rich Felker authored
Signed-off-by:
Rich Felker <dalias@libc.org>
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Pan Xinhui authored
Correct bitoff in big endian OS. Current code works correctly for 1 byte but not for 2 bytes. Fixes: 3226aad8 ("sh: support 1 and 2 byte xchg") Signed-off-by:
Pan Xinhui <xinhui.pan@linux.vnet.ibm.com> Acked-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
Rich Felker <dalias@libc.org>
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- 30 Jul, 2016 9 commits
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git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds authored
Pull NFS client updates from Trond Myklebust: "Highlights include: Stable bugfixes: - nfs: don't create zero-length requests - several LAYOUTGET bugfixes Features: - several performance related features - more aggressive caching when we can rely on close-to-open cache consistency - remove serialisation of O_DIRECT reads and writes - optimise several code paths to not flush to disk unnecessarily. However allow for the idiosyncracies of pNFS for those layout types that need to issue a LAYOUTCOMMIT before the metadata can be updated on the server. - SUNRPC updates to the client data receive path - pNFS/SCSI support RH/Fedora dm-mpath device nodes - pNFS files/flexfiles can now use unprivileged ports when the generic NFS mount options allow it. Bugfixes: - Don't use RDMA direct data placement together with data integrity or privacy security flavours - Remove the RDMA ALLPHYSICAL memory registration mode as it has potential security holes. - Several layout recall fixes to improve NFSv4.1 protocol compliance. - Fix an Oops in the pNFS files and flexfiles connection setup to the DS - Allow retry of operations that used a returned delegation stateid - Don't mark the inode as revalidated if a LAYOUTCOMMIT is outstanding - Fix writeback races in nfs4_copy_range() and nfs42_proc_deallocate()" * tag 'nfs-for-4.8-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (104 commits) pNFS: Actively set attributes as invalid if LAYOUTCOMMIT is outstanding NFSv4: Clean up lookup of SECINFO_NO_NAME NFSv4.2: Fix warning "variable ‘stateids’ set but not used" NFSv4: Fix warning "no previous prototype for ‘nfs4_listxattr’" SUNRPC: Fix a compiler warning in fs/nfs/clnt.c pNFS: Remove redundant smp_mb() from pnfs_init_lseg() pNFS: Cleanup - do layout segment initialisation in one place pNFS: Remove redundant stateid invalidation pNFS: Remove redundant pnfs_mark_layout_returned_if_empty() pNFS: Clear the layout metadata if the server changed the layout stateid pNFS: Cleanup - don't open code pnfs_mark_layout_stateid_invalid() NFS: pnfs_mark_matching_lsegs_return() should match the layout sequence id pNFS: Do not set plh_return_seq for non-callback related layoutreturns pNFS: Ensure layoutreturn acts as a completion for layout callbacks pNFS: Fix CB_LAYOUTRECALL stateid verification pNFS: Always update the layout barrier seqid on LAYOUTGET pNFS: Always update the layout stateid if NFS_LAYOUT_INVALID_STID is set pNFS: Clear the layout return tracking on layout reinitialisation pNFS: LAYOUTRETURN should only update the stateid if the layout is valid nfs: don't create zero-length requests ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 microcode updates from Thomas Gleixner: - more work to make the microcode loader robust - a fix for the micro code load precedence - fixes for initrd loading with randomized memory - less printk noise on SMP machines * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm, x86/microcode: Add __PAGE_OFFSET_BASE define on 32-bit x86/microcode/intel: Fix initrd loading with CONFIG_RANDOMIZE_MEMORY=y x86/microcode: Remove unused symbol exports x86/microcode/intel: Do not issue microcode updates messages on each CPU Documentation/microcode: Document some aspects for more clarity x86/microcode/AMD: Make amd_ucode_patch[] static x86/microcode/intel: Unexport save_mc_for_early() x86/microcode/intel: Rename load_microcode_early() to find_microcode_patch() x86/microcode: Propagate save_microcode_in_initrd() retval x86/microcode: Get rid of find_cpio_data()'s dummy offset arg lib/cpio: Make find_cpio_data()'s offset arg optional x86/microcode: Fix suspend to RAM with builtin microcode x86/microcode: Fix loading precedence
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cpufeature updates from Thomas Gleixner: - a workaround for the MONITOR instruction erratum of Goldmont CPUs - small fixes and cleanups here and there * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Add workaround for MONITOR instruction erratum on Goldmont based CPUs x86/cpu: Rename "WESTMERE2" family to "NEHALEM_G" x86/amd_nb: Clean up init path x86/cpufeature: Add helper macro for mask check macros x86/cpufeature: Make sure DISABLED/REQUIRED macros are updated x86/cpufeature: Update cpufeaure macros
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Thomas Gleixner: "This update contains: - a fix for the bpf tools to use the new EM_BPF code - a fix for the module parser of perf to retrieve the proper text start address - add str_error_c to libapi to avoid linking against tools/lib/str_error_r.o" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools lib api: Add str_error_c to libapi perf s390: Fix 'start' address of module's map tools lib bpf: Use official ELF e_machine value
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull misc fixes from Thomas Gleixner: "This update contains: - a fix for stomp-machine so the nmi_watchdog wont trigger on the cpu waiting for the others to execute the callback - various fixes and updates to objtool including an resync of the instruction decoder to match the kernel's decoder" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Un-capitalize "Warning" for out-of-sync instruction decoder objtool: Resync x86 instruction decoder with the kernel's objtool: Support new GCC 6 switch jump table pattern stop_machine: Touch_nmi_watchdog() after MULTI_STOP_PREPARE objtool: Add 'fixdep' to objtool/.gitignore
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds authored
Pull DeviceTree updates from Rob Herring: - remove most of_platform_populate() calls in arch code. Now the DT core code calls it in the default case and platforms only need to call it if they have special needs - use pr_fmt on all the DT core print statements - CoreSight binding doc improvements to block name descriptions - add dt_to_config script which can parse dts files and list corresponding kernel config options - fix memory leak hit with a PowerMac DT - correct a bunch of STMicro compatible strings to use the correct vendor prefix - fix DA9052 PMIC binding doc to match what is actually used in dts files * tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits) documentation: da9052: Update regulator bindings names to match DA9052/53 DTS expectations xtensa: Partially Revert "xtensa: Remove unnecessary of_platform_populate with default match table" xtensa: Fix build error due to missing include file MIPS: ath79: Add missing include file Fix spelling errors in Documentation/devicetree ARM: dts: fix STMicroelectronics compatible strings powerpc/dts: fix STMicroelectronics compatible strings Documentation: dt: i2c: use correct STMicroelectronics vendor prefix scripts/dtc: dt_to_config - kernel config options for a devicetree of: fdt: mark unflattened tree as detached of: overlay: add resolver error prints coresight: document binding acronyms Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties of: use pr_fmt prefix for all console printing of/irq: Mark initialised interrupt controllers as populated of: fix memory leak related to safe_name() Revert "of/platform: export of_default_bus_match_table" of: unittest: use of_platform_default_populate() to populate default bus memory: omap-gpmc: use of_platform_default_populate() to populate default bus bus: uniphier-system-bus: use of_platform_default_populate() to populate default bus ...
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds authored
Pull clk updates from Michael Turquette: "The bulk of the changes are updates and fixes to existing clk provider drivers, along with a pretty standard number of new drivers. The core recieved a small number of updates as well. Core changes of note: - removed CLK_IS_ROOT flag New clk provider drivers: - Renesas r8a7796 clock pulse generator / module standby and software reset - Allwinner sun8i H3 clock controller unit - AmLogic meson8b clock controller (rewritten) - AmLogic gxbb clock controller - support for some new ICs was added by simple changes to static data tables for chips sharing the same family Driver updates of note: - the Allwinner sunxi clock driver infrastucture was rewritten to comform to the state of the art at drivers/clk/sunxi-ng. The old implementation is still supported for backwards compatibility with the DT ABI" * tag 'clk-for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (162 commits) clk: Makefile: re-sort and clean up Revert "clk: gxbb: expose CLKID_MMC_PCLK" clk: samsung: Allow modular build of the Audio Subsystem CLKCON driver clk: samsung: make clk-s5pv210-audss explicitly non-modular clk: exynos5433: remove CLK_IGNORE_UNUSED flag from SPI clocks clk: oxnas: Add hardware dependencies clk: imx7d: do not set parent of ethernet time/ref clocks ARM: dt: sun8i: switch the H3 to the new CCU driver clk: sunxi-ng: h3: Fix Kconfig symbol typo clk: sunxi-ng: h3: Fix audio clock divider offset clk: sunxi-ng: Add H3 clocks clk: sunxi-ng: Add N-K-M-P factor clock clk: sunxi-ng: Add N-K-M Factor clock clk: sunxi-ng: Add N-M-factor clock support clk: sunxi-ng: Add N-K-factor clock support clk: sunxi-ng: Add M-P factor clock support clk: sunxi-ng: Add divider clk: sunxi-ng: Add phase clock support clk: sunxi-ng: Add mux clock support clk: sunxi-ng: Add gate clock support ...
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git://git.infradead.org/users/pcmoore/auditLinus Torvalds authored
Pull audit updates from Paul Moore: "Six audit patches for 4.8. There are a couple of style and minor whitespace tweaks for the logs, as well as a minor fixup to catch errors on user filter rules, however the major improvements are a fix to the s390 syscall argument masking code (reviewed by the nice s390 folks), some consolidation around the exclude filtering (less code, always a win), and a double-fetch fix for recording the execve arguments" * 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit: audit: fix a double fetch in audit_log_single_execve_arg() audit: fix whitespace in CWD record audit: add fields to exclude filter by reusing user filter s390: ensure that syscall arguments are properly masked on s390 audit: fix some horrible switch statement style crimes audit: fixup: log on errors from filter user rules
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-securityLinus Torvalds authored
Pull security subsystem updates from James Morris: "Highlights: - TPM core and driver updates/fixes - IPv6 security labeling (CALIPSO) - Lots of Apparmor fixes - Seccomp: remove 2-phase API, close hole where ptrace can change syscall #" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (156 commits) apparmor: fix SECURITY_APPARMOR_HASH_DEFAULT parameter handling tpm: Add TPM 2.0 support to the Nuvoton i2c driver (NPCT6xx family) tpm: Factor out common startup code tpm: use devm_add_action_or_reset tpm2_i2c_nuvoton: add irq validity check tpm: read burstcount from TPM_STS in one 32-bit transaction tpm: fix byte-order for the value read by tpm2_get_tpm_pt tpm_tis_core: convert max timeouts from msec to jiffies apparmor: fix arg_size computation for when setprocattr is null terminated apparmor: fix oops, validate buffer size in apparmor_setprocattr() apparmor: do not expose kernel stack apparmor: fix module parameters can be changed after policy is locked apparmor: fix oops in profile_unpack() when policy_db is not present apparmor: don't check for vmalloc_addr if kvzalloc() failed apparmor: add missing id bounds check on dfa verification apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task apparmor: use list_next_entry instead of list_entry_next apparmor: fix refcount race when finding a child profile apparmor: fix ref count leak when profile sha1 hash is read apparmor: check that xindex is in trans_table bounds ...
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- 29 Jul, 2016 27 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespaceLinus Torvalds authored
Pull userns vfs updates from Eric Biederman: "This tree contains some very long awaited work on generalizing the user namespace support for mounting filesystems to include filesystems with a backing store. The real world target is fuse but the goal is to update the vfs to allow any filesystem to be supported. This patchset is based on a lot of code review and testing to approach that goal. While looking at what is needed to support the fuse filesystem it became clear that there were things like xattrs for security modules that needed special treatment. That the resolution of those concerns would not be fuse specific. That sorting out these general issues made most sense at the generic level, where the right people could be drawn into the conversation, and the issues could be solved for everyone. At a high level what this patchset does a couple of simple things: - Add a user namespace owner (s_user_ns) to struct super_block. - Teach the vfs to handle filesystem uids and gids not mapping into to kuids and kgids and being reported as INVALID_UID and INVALID_GID in vfs data structures. By assigning a user namespace owner filesystems that are mounted with only user namespace privilege can be detected. This allows security modules and the like to know which mounts may not be trusted. This also allows the set of uids and gids that are communicated to the filesystem to be capped at the set of kuids and kgids that are in the owning user namespace of the filesystem. One of the crazier corner casees this handles is the case of inodes whose i_uid or i_gid are not mapped into the vfs. Most of the code simply doesn't care but it is easy to confuse the inode writeback path so no operation that could cause an inode write-back is permitted for such inodes (aka only reads are allowed). This set of changes starts out by cleaning up the code paths involved in user namespace permirted mounts. Then when things are clean enough adds code that cleanly sets s_user_ns. Then additional restrictions are added that are possible now that the filesystem superblock contains owner information. These changes should not affect anyone in practice, but there are some parts of these restrictions that are changes in behavior. - Andy's restriction on suid executables that does not honor the suid bit when the path is from another mount namespace (think /proc/[pid]/fd/) or when the filesystem was mounted by a less privileged user. - The replacement of the user namespace implicit setting of MNT_NODEV with implicitly setting SB_I_NODEV on the filesystem superblock instead. Using SB_I_NODEV is a stronger form that happens to make this state user invisible. The user visibility can be managed but it caused problems when it was introduced from applications reasonably expecting mount flags to be what they were set to. There is a little bit of work remaining before it is safe to support mounting filesystems with backing store in user namespaces, beyond what is in this set of changes. - Verifying the mounter has permission to read/write the block device during mount. - Teaching the integrity modules IMA and EVM to handle filesystems mounted with only user namespace root and to reduce trust in their security xattrs accordingly. - Capturing the mounters credentials and using that for permission checks in d_automount and the like. (Given that overlayfs already does this, and we need the work in d_automount it make sense to generalize this case). Furthermore there are a few changes that are on the wishlist: - Get all filesystems supporting posix acls using the generic posix acls so that posix_acl_fix_xattr_from_user and posix_acl_fix_xattr_to_user may be removed. [Maintainability] - Reducing the permission checks in places such as remount to allow the superblock owner to perform them. - Allowing the superblock owner to chown files with unmapped uids and gids to something that is mapped so the files may be treated normally. I am not considering even obvious relaxations of permission checks until it is clear there are no more corner cases that need to be locked down and handled generically. Many thanks to Seth Forshee who kept this code alive, and putting up with me rewriting substantial portions of what he did to handle more corner cases, and for his diligent testing and reviewing of my changes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (30 commits) fs: Call d_automount with the filesystems creds fs: Update i_[ug]id_(read|write) to translate relative to s_user_ns evm: Translate user/group ids relative to s_user_ns when computing HMAC dquot: For now explicitly don't support filesystems outside of init_user_ns quota: Handle quota data stored in s_user_ns in quota_setxquota quota: Ensure qids map to the filesystem vfs: Don't create inodes with a uid or gid unknown to the vfs vfs: Don't modify inodes with a uid or gid unknown to the vfs cred: Reject inodes with invalid ids in set_create_file_as() fs: Check for invalid i_uid in may_follow_link() vfs: Verify acls are valid within superblock's s_user_ns. userns: Handle -1 in k[ug]id_has_mapping when !CONFIG_USER_NS fs: Refuse uid/gid changes which don't map into s_user_ns selinux: Add support for unprivileged mounts from user namespaces Smack: Handle labels consistently in untrusted mounts Smack: Add support for unprivileged mounts from user namespaces fs: Treat foreign mounts as nosuid fs: Limit file caps to the user namespace of the super block userns: Remove the now unnecessary FS_USERNS_DEV_MOUNT flag userns: Remove implicit MNT_NODEV fragility. ...
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Steve Twiss authored
Buck and LDO binding name changes. The binding names for the regulators have been changed to match the current expectation from existing device tree source files. This fix rectifies the disparity between what currently exists in some .dts[i] board files and what is listed in this binding document. This change re-aligns those differences and also brings the binding document in-line with the expectations of the product datasheet from Dialog Semiconductor. Bucks and LDOs now follow the expected notation: { buck1, buck2, buck3, buck4 } { ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldo8, ldo9, ldo10 } Signed-off-by:
Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by:
Rob Herring <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management fix from Rafael Wysocki: "Fix a nasty (and really hard to debug) memory corruption during resume from hibernation on x86-64 (that leads to a kernel panic most of the time) due to the use of a stale stack pointer value in FRAME_BEGIN (Josh Poimboeuf)" * tag 'pm-urgent-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: x86/power/64: Fix hibernation return address corruption
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull more cgroup updates from Tejun Heo: "I forgot to include the patches which got applied to for-4.7-fixes late during last cycle. Eric's three patches fix bugs introduced with the namespace support" * 'for-4.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroupns: Only allow creation of hierarchies in the initial cgroup namespace cgroupns: Close race between cgroup_post_fork and copy_cgroup_ns cgroupns: Fix the locking in copy_cgroup_ns
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull smp hotplug updates from Thomas Gleixner: "This is the next part of the hotplug rework. - Convert all notifiers with a priority assigned - Convert all CPU_STARTING/DYING notifiers The final removal of the STARTING/DYING infrastructure will happen when the merge window closes. Another 700 hundred line of unpenetrable maze gone :)" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits) timers/core: Correct callback order during CPU hot plug leds/trigger/cpu: Move from CPU_STARTING to ONLINE level powerpc/numa: Convert to hotplug state machine arm/perf: Fix hotplug state machine conversion irqchip/armada: Avoid unused function warnings ARC/time: Convert to hotplug state machine clocksource/atlas7: Convert to hotplug state machine clocksource/armada-370-xp: Convert to hotplug state machine clocksource/exynos_mct: Convert to hotplug state machine clocksource/arm_global_timer: Convert to hotplug state machine rcu: Convert rcutree to hotplug state machine KVM/arm/arm64/vgic-new: Convert to hotplug state machine smp/cfd: Convert core to hotplug state machine x86/x2apic: Convert to CPU hotplug state machine profile: Convert to hotplug state machine timers/core: Convert to hotplug state machine hrtimer: Convert to hotplug state machine x86/tboot: Convert to hotplug state machine arm64/armv8 deprecated: Convert to hotplug state machine hwtracing/coresight-etm4x: Convert to hotplug state machine ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/ideLinus Torvalds authored
Pull IDE updates from David Miller: "Just a couple small bug fixes, nothing overly exciting in here" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide: ide: missing break statement in set_timings_mdma() ide: hpt366: fix incorrect mask when checking at cmd_high_time ide-tape: fix misprint in failure handling in idetape_init() cmd640: add __init attribute
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds authored
Pull sparc updates from David Miller: 1) Double spin lock bug in sunhv serial driver, from Dan Carpenter. 2) Use correct RSS estimate when determining whether to grow the huge TSB or not, from Mike Kravetz. 3) Don't use full three level page tables for hugepages, PMD level is sufficient. From Nitin Gupta. 4) Mask out extraneous bits from TSB_TAG_ACCESS register, we only want the address bits. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Trim page tables for 8M hugepages sparc64 mm: Fix base TSB sizing when hugetlb pages are used sparc: serial: sunhv: fix a double lock bug sparc32: off by ones in BUG_ON() sparc: Don't leak context bits into thread->fault_address
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds authored
Pull ARC updates from Vineet Gupta: "Things have been calm here - nothing much except for a few fixes" * tag 'arc-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: mm: don't loose PTE_SPECIAL in pte_modify() ARC: dma: fix address translation in arc_dma_free ARC: typo fix in mm/ioremap.c ARC: fix linux-next build breakage
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Rafael J. Wysocki authored
* pm-sleep: x86/power/64: Fix hibernation return address corruption
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git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32Linus Torvalds authored
Pull AVR32 updates from Hans-Christian Noren Egtvedt. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32: avr32: off by one in at32_init_pio() avr32: fixup code style in unistd.h and syscall_table.S avr32: wire up preadv2 and pwritev2 syscalls
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM updates from Russell King: "Included in this update are: - Patches from Gregory Clement to fix the coherent DMA cases in our dma-mapping code. - A number of CPU errata updates and fixes. - ARM cpuidle improvements from Jisheng Zhang. - Fix from Kees for the location of _etext. - Cleanups from Masahiro Yamada to avoid duplicated messages during the kernel build, and remove CONFIG_ARCH_HAS_BARRIERS. - Remove a udelay loop limitation, allowing for faster CPUs to calibrate the delay correctly. - Cleanup some left-overs from the SW PAN implementation. - Ensure that a modified address limit is not visible to exception handlers" * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (21 commits) ARM: 8586/1: cpuidle: make arm_cpuidle_suspend() a bit more efficient ARM: 8585/1: cpuidle: fix !cpuidle_ops[cpu].init case during init ARM: 8561/4: dma-mapping: Fix the coherent case when iommu is used ARM: 8561/3: dma-mapping: Don't use outer_flush_range when the L2C is coherent ARM: 8560/1: errata: Workaround errata A12 825619 / A17 852421 ARM: 8559/1: errata: Workaround erratum A12 821420 ARM: 8558/1: errata: Workaround errata A12 818325/852422 A17 852423 ARM: save and reset the address limit when entering an exception ARM: 8577/1: Fix Cortex-A15 798181 errata initialization ARM: 8584/1: floppy: avoid gcc-6 warning ARM: 8583/1: mm: fix location of _etext ARM: 8582/1: remove unused CONFIG_ARCH_HAS_BARRIERS ARM: 8306/1: loop_udelay: remove bogomips value limitation ARM: 8581/1: add missing <asm/prom.h> to arch/arm/kernel/devtree.c ARM: 8576/1: avoid duplicating "Kernel: arch/arm/boot/*Image is ready" ARM: 8556/1: on a generic DT system: do not touch l2x0 ARM: uaccess: remove put_user() code duplication ARM: 8580/1: Remove orphaned __addr_ok() definition ARM: get rid of horrible *(unsigned int *)(regs + 1) ARM: introduce svc_pt_regs structure ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuseLinus Torvalds authored
Pull fuse updates from Miklos Szeredi: "This fixes error propagation from writeback to fsync/close for writeback cache mode as well as adding a missing capability flag to the INIT message. The rest are cleanups. (The commits are recent but all the code actually sat in -next for a while now. The recommits are due to conflict avoidance and the addition of Cc: stable@...)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: use filemap_check_errors() mm: export filemap_check_errors() to modules fuse: fix wrong assignment of ->flags in fuse_send_init() fuse: fuse_flush must check mapping->flags for errors fuse: fsync() did not return IO errors fuse: don't mess with blocking signals new helper: wait_event_killable_exclusive() fuse: improve aio directIO write performance for size extending writes
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Linus Torvalds authored
This reverts commit 3c9fe8cd. As Miklos points out in commit c1b2cc1a, the "lookup_hash()" helper is now unused, and in fact, with the hash salting changes, since the hash of a dentry name now depends on the directory dentry it is in, the helper function isn't even really likely to be useful. So rather than keep it around in case somebody else might end up finding a use for it, let's just remove the helper and not trick people into thinking it might be a useful thing. For example, I had obviously completely missed how the helper didn't follow the normal dentry hashing patterns, and how the hash salting patch broke overlayfs. Things would quietly build and look sane, but not work. Suggested-by:
Miklos Szeredi <mszeredi@redhat.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfsLinus Torvalds authored
Pull overlayfs update from Miklos Szeredi: "First of all, this fixes a regression in overlayfs introduced by the dentry hash salting. I've moved the patch fixing this to the front of the queue, so if (god forbid) something needs to be bisected in overlayfs this regression won't interfere with that. The biggest part is preparation for selinux support, done by Vivek Goyal. Essentially this makes all operations on underlying filesystems be done with credentials of mounter. This makes everything nicely consistent. There are also fixes for a number of known and recently discovered non-standard behavior (thanks to Eryu Guan for testing and improving the test suites)" * 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (23 commits) ovl: simplify empty checking qstr: constify instances in overlayfs ovl: clear nlink on rmdir ovl: disallow overlayfs as upperdir ovl: fix warning ovl: remove duplicated include from super.c ovl: append MAY_READ when diluting write checks ovl: dilute permission checks on lower only if not special file ovl: fix POSIX ACL setting ovl: share inode for hard link ovl: store real inode pointer in ->i_private ovl: permission: return ECHILD instead of ENOENT ovl: update atime on upper ovl: fix sgid on directory ovl: simplify permission checking ovl: do not require mounter to have MAY_WRITE on lower ovl: do operations on underlying file system in mounter's context ovl: modify ovl_permission() to do checks on two inodes ovl: define ->get_acl() for overlay inodes ovl: move some common code in a function ...
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git://git.infradead.org/users/hch/freevxfsLinus Torvalds authored
Pull freevxfs updates from Christoph Hellwig: "Support for foreign endianess and HP-UP superblocks from Krzysztof Błaszkowski" * tag 'freevxfs-for-4.8' of git://git.infradead.org/users/hch/freevxfs: freevxfs: update Kconfig information freevxfs: refactor readdir and lookup code freevxfs: fix lack of inode initialization freevxfs: fix memory leak in vxfs_read_fshead() freevxfs: update documentation and cresdits for HP-UX support freevxfs: implement ->alloc_inode and ->destroy_inode freevxfs: avoid the need for forward declaring the super operations freevxfs: move VFS inode allocation into vxfs_blkiget and vxfs_stiget freevxfs: remove vxfs_put_fake_inode freevxfs: handle big endian HP-UX file systems
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git://git.infradead.org/users/hch/configfsLinus Torvalds authored
Pull configfs update from Christoph Hellwig: "A simple error handling fix from Tal Shorer" * tag 'configfs-for-4.8' of git://git.infradead.org/users/hch/configfs: configfs: don't set buffer_needs_fill to zero if show() returns error
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull CIFS/SMB3 fixes from Steve French: "Various CIFS/SMB3 fixes, most for stable" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: CIFS: Fix a possible invalid memory access in smb2_query_symlink() fs/cifs: make share unaccessible at root level mountable cifs: fix crash due to race in hmac(md5) handling cifs: unbreak TCP session reuse cifs: Check for existing directory when opening file with O_CREAT Add MF-Symlinks support for SMB 2.0
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Nitin Gupta authored
For PMD aligned (8M) hugepages, we currently allocate all four page table levels which is wasteful. We now allocate till PMD level only which saves memory usage from page tables. Also, when freeing page table for 8M hugepage backed region, make sure we don't try to access non-existent PTE level. Orabug: 22630259 Signed-off-by:
Nitin Gupta <nitin.m.gupta@oracle.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Josh Poimboeuf authored
Change "Warning" to "warning" to make it look more like a GCC warning. Hopefully that will be enough to help the 0-day bot or other automated tools catch this warning earlier before it ends up in Linus's tree. Reported-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/b1669f391a5db91040427fd9f8e1e79db18f9709.1469751119.git.jpoimboe@redhat.comSigned-off-by:
Ingo Molnar <mingo@kernel.org>
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Josh Poimboeuf authored
This fixes the following warning: Warning: objtool: x86 instruction decoder differs from kernel Unfortunately we have three identical copies of the x86 instruction decoder in the kernel tree that have to be manually kept in sync. It's on my TODO list to at least library-ize the ones in the tools subdir so we'd only have two of them instead of three. In the meantime, here's another manual sync. Reported-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: c61f4d5e ("perf tools: Add AVX-512 support to the instruction decoder used by Intel PT") Link: http://lkml.kernel.org/r/d7f74b4d91fed25b0be33cd5c86f5131fa1a7529.1469751119.git.jpoimboe@redhat.comSigned-off-by:
Ingo Molnar <mingo@kernel.org>
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Josh Poimboeuf authored
This fixes some false positive objtool warnings seen with gcc 6.1.1: kernel/trace/ring_buffer.o: warning: objtool: ring_buffer_read_page()+0x36c: sibling call from callable instruction with changed frame pointer arch/x86/kernel/reboot.o: warning: objtool: native_machine_emergency_restart()+0x139: sibling call from callable instruction with changed frame pointer lib/xz/xz_dec_stream.o: warning: objtool: xz_dec_run()+0xc2: sibling call from callable instruction with changed frame pointer With GCC 6, a new code pattern is sometimes used to access a switch statement jump table in .rodata, which objtool doesn't yet recognize: mov [rodata addr],%reg1 ... some instructions ... jmpq *(%reg1,%reg2,8) Add support for detecting that pattern. The detection code is rather crude, but it's still effective at weeding out false positives and catching real warnings. It can be refined later once objtool starts reading DWARF CFI. Reported-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/b8c9503b4ad8c8a827cc5400db4c1b40a3ea07bc.1469751119.git.jpoimboe@redhat.comSigned-off-by:
Ingo Molnar <mingo@kernel.org>
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Ingo Molnar authored
Merge tag 'perf-urgent-for-mingo-20160728' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fix from Arnaldo Carvalho de Melo: - Fix the tools/vm/ build by making libapi provide the str_error_c function, that libapi uses but wasn't part of the list of objects linked with tools/vm/ programs. (Arnaldo Carvalho de Melo) Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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Miklos Szeredi authored
Signed-off-by:
Miklos Szeredi <mszeredi@redhat.com>
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Miklos Szeredi authored
Can be used by fuse, btrfs and f2fs to replace opencoded variants. Signed-off-by:
Miklos Szeredi <mszeredi@redhat.com>
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Wei Fang authored
FUSE_HAS_IOCTL_DIR should be assigned to ->flags, it may be a typo. Signed-off-by:
Wei Fang <fangwei1@huawei.com> Signed-off-by:
Miklos Szeredi <mszeredi@redhat.com> Fixes: 69fe05c9 ("fuse: add missing INIT flags") Cc: <stable@vger.kernel.org>
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Maxim Patlasov authored
fuse_flush() calls write_inode_now() that triggers writeback, but actual writeback will happen later, on fuse_sync_writes(). If an error happens, fuse_writepage_end() will set error bit in mapping->flags. So, we have to check mapping->flags after fuse_sync_writes(). Signed-off-by:
Maxim Patlasov <mpatlasov@virtuozzo.com> Signed-off-by:
Miklos Szeredi <mszeredi@redhat.com> Fixes: 4d99ff8f ("fuse: Turn writeback cache on") Cc: <stable@vger.kernel.org> # v3.15+
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Alexey Kuznetsov authored
Due to implementation of fuse writeback filemap_write_and_wait_range() does not catch errors. We have to do this directly after fuse_sync_writes() Signed-off-by:
Alexey Kuznetsov <kuznet@virtuozzo.com> Signed-off-by:
Maxim Patlasov <mpatlasov@virtuozzo.com> Signed-off-by:
Miklos Szeredi <mszeredi@redhat.com> Fixes: 4d99ff8f ("fuse: Turn writeback cache on") Cc: <stable@vger.kernel.org> # v3.15+
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