- 14 Feb, 2017 2 commits
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Paul Durrant authored
The purpose if this ioctl is to allow a user of privcmd to restrict its operation such that it will no longer service arbitrary hypercalls via IOCTL_PRIVCMD_HYPERCALL, and will check for a matching domid when servicing IOCTL_PRIVCMD_DM_OP or IOCTL_PRIVCMD_MMAP*. The aim of this is to limit the attack surface for a compromised device model. Signed-off-by:
Paul Durrant <paul.durrant@citrix.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Paul Durrant authored
Recently a new dm_op[1] hypercall was added to Xen to provide a mechanism for restricting device emulators (such as QEMU) to a limited set of hypervisor operations, and being able to audit those operations in the kernel of the domain in which they run. This patch adds IOCTL_PRIVCMD_DM_OP as gateway for __HYPERVISOR_dm_op. NOTE: There is no requirement for user-space code to bounce data through locked memory buffers (as with IOCTL_PRIVCMD_HYPERCALL) since privcmd has enough information to lock the original buffers directly. [1] http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=524a98c2Signed-off-by:
Paul Durrant <paul.durrant@citrix.com> Acked-by:
Stefano Stabellini <sstabellini@kernel.org> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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- 13 Feb, 2017 1 commit
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Paul Durrant authored
The code sets the default return code to -ENOSYS but then overrides this to -EINVAL in the switch() statement's default case, which is clearly silly. This patch removes the override and sets the default return code to -ENOTTY, which is the conventional return for an unimplemented ioctl. Signed-off-by:
Paul Durrant <paul.durrant@citrix.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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- 09 Feb, 2017 3 commits
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Juergen Gross authored
Handling of multiple concurrent Xenstore accesses through xenbus driver either from the kernel or user land is rather lame today: xenbus is capable to have one access active only at one point of time. Rewrite xenbus to handle multiple requests concurrently by making use of the request id of the Xenstore protocol. This requires to: - Instead of blocking inside xb_read() when trying to read data from the xenstore ring buffer do so only in the main loop of xenbus_thread(). - Instead of doing writes to the xenstore ring buffer in the context of the caller just queue the request and do the write in the dedicated xenbus thread. - Instead of just forwarding the request id specified by the caller of xenbus to xenstore use a xenbus internal unique request id. This will allow multiple outstanding requests. - Modify the locking scheme in order to allow multiple requests being active in parallel. - Instead of waiting for the reply of a user's xenstore request after writing the request to the xenstore ring buffer return directly to the caller and do the waiting in the read path. Additionally signal handling was optimized by avoiding waking up the xenbus thread or sending an event to Xenstore in case the addressed entity is known to be running already. As a result communication with Xenstore is sped up by a factor of up to 5: depending on the request type (read or write) and the amount of data transferred the gain was at least 20% (small reads) and went up to a factor of 5 for large writes. In the end some more rough edges of xenbus have been smoothed: - Handling of memory shortage when reading from xenstore ring buffer in the xenbus driver was not optimal: it was busy looping and issuing a warning in each loop. - In case of xenstore not running in dom0 but in a stubdom we end up with two xenbus threads running as the initialization of xenbus in dom0 expecting a local xenstored will be redone later when connecting to the xenstore domain. Up to now this was no problem as locking would prevent the two xenbus threads interfering with each other, but this was just a waste of kernel resources. - An out of memory situation while writing to or reading from the xenstore ring buffer no longer will lead to a possible loss of synchronization with xenstore. - The user read and write part are now interruptible by signals. Signed-off-by:
Juergen Gross <jgross@suse.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Juergen Gross authored
Today a Xenstore watch event is delivered via a callback function declared as: void (*callback)(struct xenbus_watch *, const char **vec, unsigned int len); As all watch events only ever come with two parameters (path and token) changing the prototype to: void (*callback)(struct xenbus_watch *, const char *path, const char *token); is the natural thing to do. Apply this change and adapt all users. Cc: konrad.wilk@oracle.com Cc: roger.pau@citrix.com Cc: wei.liu2@citrix.com Cc: paul.durrant@citrix.com Cc: netdev@vger.kernel.org Signed-off-by:
Juergen Gross <jgross@suse.com> Reviewed-by:
Paul Durrant <paul.durrant@citrix.com> Reviewed-by:
Wei Liu <wei.liu2@citrix.com> Reviewed-by:
Roger Pau Monné <roger.pau@citrix.com> Reviewed-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Juergen Gross authored
The xenbus driver has an awful mixture of internally and globally visible headers: some of the internally used only stuff is defined in the global header include/xen/xenbus.h while some stuff defined in internal headers is used by other drivers, too. Clean this up by moving the externally used symbols to include/xen/xenbus.h and the symbols used internally only to a new header drivers/xen/xenbus/xenbus.h replacing xenbus_comms.h and xenbus_probe.h Signed-off-by:
Juergen Gross <jgross@suse.com> Reviewed-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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- 08 Feb, 2017 1 commit
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Joe Perches authored
This function error patch can be simplified, so do so. Remove fail: label and somewhat obfuscating, used once "error_path" function. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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- 07 Feb, 2017 9 commits
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Boris Ostrovsky authored
Using native_machine_emergency_restart (called during reboot) will lead PVH guests to machine_real_restart() where we try to use real_mode_header which is not initialized. Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Juergen Gross <jgross@suse.com>
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Boris Ostrovsky authored
PVH guests don't (yet) receive ACPI hotplug interrupts and therefore need to monitor xenstore for CPU hotplug event. Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Juergen Gross <jgross@suse.com>
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Boris Ostrovsky authored
Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Juergen Gross <jgross@suse.com> Reviewed-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Boris Ostrovsky authored
Like PV guests, PVH does not have PCI devices and therefore cannot use MMIO space to store grants. Instead it balloons out memory and keeps grants there. Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Juergen Gross <jgross@suse.com>
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Boris Ostrovsky authored
Since we are not using PIC and (at least currently) don't have IOAPIC we want to make sure that acpi_irq_model doesn't stay set to ACPI_IRQ_MODEL_PIC (which is the default value). If we allowed it to stay then acpi_os_install_interrupt_handler() would try (and fail) to request_irq() for PIC. Instead we set the model to ACPI_IRQ_MODEL_PLATFORM which will prevent this from happening. Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Juergen Gross <jgross@suse.com>
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Boris Ostrovsky authored
Start PVH guest at XEN_ELFNOTE_PHYS32_ENTRY address. Setup hypercall page, initialize boot_params, enable early page tables. Since this stub is executed before kernel entry point we cannot use variables in .bss which is cleared by kernel. We explicitly place variables that are initialized here into .data. While adjusting xen_hvm_init_shared_info() make it use cpuid_e?x() instead of cpuid() (wherever possible). Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Juergen Gross <jgross@suse.com>
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Boris Ostrovsky authored
Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Juergen Gross <jgross@suse.com> Reviewed-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Boris Ostrovsky authored
We are replacing existing PVH guests with new implementation. We are keeping xen_pvh_domain() macro (for now set to zero) because when we introduce new PVH implementation later in this series we will reuse current PVH-specific code (xen_pvh_gnttab_setup()), and that code is conditioned by 'if (xen_pvh_domain())'. (We will also need a noop xen_pvh_domain() for !CONFIG_XEN_PVH). Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Juergen Gross <jgross@suse.com> Reviewed-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Boris Ostrovsky authored
The new Xen PVH entry point requires page tables to be setup by the kernel since it is entered with paging disabled. Pull the common code out of head_32.S so that mk_early_pgtbl_32() can be invoked from both the new Xen entry point and the existing startup_32() code. Convert resulting common code to C. Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.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: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: matt@codeblueprint.co.uk Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/1481215471-9639-1-git-send-email-boris.ostrovsky@oracle.comSigned-off-by:
Ingo Molnar <mingo@kernel.org>
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- 03 Feb, 2017 1 commit
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Jan Beulich authored
A negative return value indicates an error; in fact the function at present won't ever return zero. Signed-off-by:
Jan Beulich <jbeulich@suse.com> Reviewed-by:
Juergen Gross <jgross@suse.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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- 29 Jan, 2017 6 commits
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Mohit Gambhir authored
This patch fixes the following warning message seen when booting the kernel as Dom0 with Xen on Intel machines. [0.003000] [Firmware Bug]: CPU1: APIC id mismatch. Firmware: 0 APIC: 1] The code generating the warning in validate_apic_and_package_id() matches cpu_data(cpu).apicid (initialized in init_intel()-> detect_extended_topology() using cpuid) against the apicid returned from xen_apic_read(). Now, xen_apic_read() makes a hypercall to retrieve apicid for the boot cpu but returns 0 otherwise. Hence the warning gets thrown for all but the boot cpu. The idea behind xen_apic_read() returning 0 for apicid is that the guests (even Dom0) should not need to know what physical processor their vcpus are running on. This is because we currently do not have topology information in Xen and also because xen allows more vcpus than physical processors. However, boot cpu's apicid is required for loading xen-acpi-processor driver on AMD machines. Look at following patch for details: commit 558daa28 ("xen/apic: Return the APIC ID (and version) for CPU 0.") So to get rid of the warning, this patch modifies xen_cpu_present_to_apicid() to return cpu_data(cpu).apicid instead of calling xen_apic_read(). The warning is not seen on AMD machines because init_amd() populates cpu_data(cpu).apicid by calling hard_smp_processor_id()->xen_apic_read() as opposed to using apicid from cpuid as is done on Intel machines. Signed-off-by:
Mohit Gambhir <mohit.gambhir@oracle.com> Reviewed-by:
Juergen Gross <jgross@suse.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Juergen Gross authored
The default for the maximum number of tx/rx queues of one interface is the number of cpus of the system today. As each queue pair reserves 512 grant pages this default consumes a ridiculous number of grants for large guests. Limit the queue number to 8 as default. This value can be modified via a module parameter if required. Signed-off-by:
Juergen Gross <jgross@suse.com> Reviewed-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Juergen Gross authored
The default for the number of tx/rx queues of one interface is the number of vcpus of the system today. As each queue pair reserves 512 grant pages this default consumes a ridiculous number of grants for large guests. Limit the queue number to 8 as default. This value can be modified via a module parameter if required. Signed-off-by:
Juergen Gross <jgross@suse.com> Reviewed-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Linus Torvalds authored
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Linus Torvalds authored
I've seen this trigger twice now, where the i915_gem_object_to_ggtt() call in intel_unpin_fb_obj() returns NULL, resulting in an oops immediately afterwards as the (inlined) call to i915_vma_unpin_fence() tries to dereference it. It seems to be some race condition where the object is going away at shutdown time, since both times happened when shutting down the X server. The call chains were different: - VT ioctl(KDSETMODE, KD_TEXT): intel_cleanup_plane_fb+0x5b/0xa0 [i915] drm_atomic_helper_cleanup_planes+0x6f/0x90 [drm_kms_helper] intel_atomic_commit_tail+0x749/0xfe0 [i915] intel_atomic_commit+0x3cb/0x4f0 [i915] drm_atomic_commit+0x4b/0x50 [drm] restore_fbdev_mode+0x14c/0x2a0 [drm_kms_helper] drm_fb_helper_restore_fbdev_mode_unlocked+0x34/0x80 [drm_kms_helper] drm_fb_helper_set_par+0x2d/0x60 [drm_kms_helper] intel_fbdev_set_par+0x18/0x70 [i915] fb_set_var+0x236/0x460 fbcon_blank+0x30f/0x350 do_unblank_screen+0xd2/0x1a0 vt_ioctl+0x507/0x12a0 tty_ioctl+0x355/0xc30 do_vfs_ioctl+0xa3/0x5e0 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x13/0x94 - i915 unpin_work workqueue: intel_unpin_work_fn+0x58/0x140 [i915] process_one_work+0x1f1/0x480 worker_thread+0x48/0x4d0 kthread+0x101/0x140 and this patch purely papers over the issue by adding a NULL pointer check and a WARN_ON_ONCE() to avoid the oops that would then generally make the machine unresponsive. Other callers of i915_gem_object_to_ggtt() seem to also check for the returned pointer being NULL and warn about it, so this clearly has happened before in other places. [ Reported it originally to the i915 developers on Jan 8, applying the ugly workaround on my own now after triggering the problem for the second time with no feedback. This is likely to be the same bug reported as https://bugs.freedesktop.org/show_bug.cgi?id=98829 https://bugs.freedesktop.org/show_bug.cgi?id=99134 which has a patch for the underlying problem, but it hasn't gotten to me, so I'm applying the workaround. ] Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds authored
Pull two parisc fixes from Helge Deller: "One fix to avoid usage of BITS_PER_LONG in user-space exported swab.h header which breaks compiling qemu, and one trivial fix for printk continuation in the parisc parport driver" * 'parisc-4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header parisc, parport_gsc: Fixes for printk continuation lines
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- 28 Jan, 2017 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "Two I2C driver bugfixes. The 'VLLS mode support' patch should have been entitled 'reconfigure pinctrl after suspend' to make the bugfix more clear. Sorry, I missed that, yet didn't want to rebase" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: imx-lpi2c: add VLLS mode support i2c: i2c-cadence: Initialize configuration before probing devices
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Helge Deller authored
In swab.h the "#if BITS_PER_LONG > 32" breaks compiling userspace programs if BITS_PER_LONG is #defined by userspace with the sizeof() compiler builtin. Solve this problem by using __BITS_PER_LONG instead. Since we now #include asm/bitsperlong.h avoid further potential userspace pollution by moving the #define of SHIFT_PER_LONG to bitops.h which is not exported to userspace. This patch unbreaks compiling qemu on hppa/parisc. Signed-off-by:
Helge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org>
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Helge Deller authored
Signed-off-by:
Helge Deller <deller@gmx.de>
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git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds authored
Pull NFS client bugfixes from Trond Myklebust: "Stable patches: - NFSv4.1: Fix a deadlock in layoutget - NFSv4 must not bump sequence ids on NFS4ERR_MOVED errors - NFSv4 Fix a regression with OPEN EXCLUSIVE4 mode - Fix a memory leak when removing the SUNRPC module Bugfixes: - Fix a reference leak in _pnfs_return_layout" * tag 'nfs-for-4.10-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: pNFS: Fix a reference leak in _pnfs_return_layout nfs: Fix "Don't increment lock sequence ID after NFS4ERR_MOVED" SUNRPC: cleanup ida information when removing sunrpc module NFSv4.0: always send mode in SETATTR after EXCLUSIVE4 nfs: Don't increment lock sequence ID after NFS4ERR_MOVED NFSv4.1: Fix a deadlock in layoutget
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git://git.kernel.org/pub/scm/linux/kernel/git/shli/mdLinus Torvalds authored
Pull MD fixes from Shaohua Li: "This fixes several corner cases for raid5 cache, which is merged into this cycle" * tag 'md/4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: md/r5cache: disable write back for degraded array md/r5cache: shift complex rmw from read path to write path md/r5cache: flush data only stripes in r5l_recovery_log() md/raid5: move comment of fetch_block to right location md/r5cache: read data into orig_page for prexor of cached data md/raid5-cache: delete meaningless code
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fix from Catalin Marinas: "Fix kernel panic on ACPI-based systems where CPU capacity description is not currently handled" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: skip register_cpufreq_notifier on ACPI-based systems
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds authored
Pull ARC fixes from Vineet Gupta: "Hopefully last set of changes for ARC for 4.10: - fix for unaligned access emulation corner case - fix for udelay loop inline asm regression - fix irq affinity finally for AXS103 board [Yuriy] - final fixes for setting IO-coherency sanely in SMP" * tag 'arc-4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: [arcompact] handle unaligned access delay slot corner case ARCv2: smp-boot: wake_flag polling by non-Masters needs to be uncached ARC: smp-boot: Decouple Non masters waiting API from jump to entry point ARCv2: MCIP: update the BCR per current changes ARC: udelay: fix inline assembler by adding LP_COUNT to clobber list ARCv2: MCIP: Deprecate setting of affinity in Device Tree
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- 27 Jan, 2017 10 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) GTP fixes from Andreas Schultz (missing genl module alias, clear IP DF on transmit). 2) Netfilter needs to reflect the fwmark when sending resets, from Pau Espin Pedrol. 3) nftable dump OOPS fix from Liping Zhang. 4) Fix erroneous setting of VIRTIO_NET_HDR_F_DATA_VALID on transmit, from Rolf Neugebauer. 5) Fix build error of ipt_CLUSTERIP when procfs is disabled, from Arnd Bergmann. 6) Fix regression in handling of NETIF_F_SG in harmonize_features(), from Eric Dumazet. 7) Fix RTNL deadlock wrt. lwtunnel module loading, from David Ahern. 8) tcp_fastopen_create_child() needs to setup tp->max_window, from Alexey Kodanev. 9) Missing kmemdup() failure check in ipv6 segment routing code, from Eric Dumazet. 10) Don't execute unix_bind() under the bindlock, otherwise we deadlock with splice. From WANG Cong. 11) ip6_tnl_parse_tlv_enc_lim() potentially reallocates the skb buffer, therefore callers must reload cached header pointers into that skb. Fix from Eric Dumazet. 12) Fix various bugs in legacy IRQ fallback handling in alx driver, from Tobias Regnery. 13) Do not allow lwtunnel drivers to be unloaded while they are referenced by active instances, from Robert Shearman. 14) Fix truncated PHY LED trigger names, from Geert Uytterhoeven. 15) Fix a few regressions from virtio_net XDP support, from John Fastabend and Jakub Kicinski. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (102 commits) ISDN: eicon: silence misleading array-bounds warning net: phy: micrel: add support for KSZ8795 gtp: fix cross netns recv on gtp socket gtp: clear DF bit on GTP packet tx gtp: add genl family modules alias tcp: don't annotate mark on control socket from tcp_v6_send_response() ravb: unmap descriptors when freeing rings virtio_net: reject XDP programs using header adjustment virtio_net: use dev_kfree_skb for small buffer XDP receive r8152: check rx after napi is enabled r8152: re-schedule napi for tx r8152: avoid start_xmit to schedule napi when napi is disabled r8152: avoid start_xmit to call napi_schedule during autosuspend net: dsa: Bring back device detaching in dsa_slave_suspend() net: phy: leds: Fix truncated LED trigger names net: phy: leds: Break dependency of phy.h on phy_led_triggers.h net: phy: leds: Clear phy_num_led_triggers on failure to avoid crash net-next: ethernet: mediatek: change the compatible string Documentation: devicetree: change the mediatek ethernet compatible string bnxt_en: Fix RTNL lock usage on bnxt_get_port_module_status(). ...
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs uodates from Darrick Wong: "I have some more fixes this week: better input validation, corruption avoidance, build fixes, memory leak fixes, and a couple from Christoph to avoid an ENOSPC failure. Summary: - Fix race conditions in the CoW code - Fix some incorrect input validation checks - Avoid crashing fs by running out of space when freeing inodes - Fix toctou race wrt whether or not an inode has an attr - Fix build error on arm - Fix page refcount corruption when readahead fails - Don't corrupt userspace in the bmap ioctl" * tag 'xfs-for-linus-4.10-rc6-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: prevent quotacheck from overloading inode lru xfs: fix bmv_count confusion w/ shared extents xfs: clear _XBF_PAGES from buffers when readahead page xfs: extsize hints are not unlikely in xfs_bmap_btalloc xfs: remove racy hasattr check from attr ops xfs: use per-AG reservations for the finobt xfs: only update mount/resv fields on success in __xfs_ag_resv_init xfs: verify dirblocklog correctly xfs: fix COW writeback race
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs updates from Chris Mason: "Some fixes that we've collected from the list. We still have one more pending to nail down a regression in lzo compression, but I wanted to get this batch out the door" * 'for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: remove ->{get, set}_acl() from btrfs_dir_ro_inode_operations Btrfs: disable xattr operations on subvolume directories Btrfs: remove old tree_root case in btrfs_read_locked_inode() Btrfs: fix truncate down when no_holes feature is enabled Btrfs: Fix deadlock between direct IO and fast fsync btrfs: fix false enospc error when truncating heavily reflinked file
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fixes from Jens Axboe: "A set of fixes for this series. This contains: - Set of fixes for the nvme target code - A revert of patch from this merge window, causing a regression with WRITE_SAME on iSCSI targets at least. - A fix for a use-after-free in the new O_DIRECT bdev code. - Two fixes for the xen-blkfront driver" * 'for-linus' of git://git.kernel.dk/linux-block: Revert "sd: remove __data_len hack for WRITE SAME" nvme-fc: use blk_rq_nr_phys_segments nvmet-rdma: Fix missing dma sync to nvme data structures nvmet: Call fatal_error from keep-alive timout expiration nvmet: cancel fatal error and flush async work before free controller nvmet: delete controllers deletion upon subsystem release nvmet_fc: correct logic in disconnect queue LS handling block: fix use after free in __blkdev_direct_IO xen-blkfront: correct maximum segment accounting xen-blkfront: feature flags handling adjustments
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdmaLinus Torvalds authored
Pull rdma fixes from Doug Ledford: "Second round of -rc fixes for 4.10. This -rc cycle has been slow for the rdma subsystem. I had already sent you the first batch before the Holiday break. After that, we kept only getting a few here or there. Up until this week, when I got a drop of 13 to one driver (qedr). So, here's the -rc patches I have. I currently have none held in reserve, so unless something new comes in, this is it until the next merge window opens. Summary: - series of iw_cxgb4 fixes to make it work with the drain cq API - one or two patches each to: srp, iser, cxgb3, vmw_pvrdma, umem, rxe, and ipoib - one big series (13 patches) for the new qedr driver" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (27 commits) RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled IB/rxe: Prevent from completer to operate on non valid QP IB/rxe: Fix rxe dev insertion to rxe_dev_list IB/umem: Release pid in error and ODP flow RDMA/qedr: Dispatch port active event from qedr_add RDMA/qedr: Fix and simplify memory leak in PD alloc RDMA/qedr: Fix RDMA CM loopback RDMA/qedr: Fix formatting RDMA/qedr: Mark three functions as static RDMA/qedr: Don't reset QP when queues aren't flushed RDMA/qedr: Don't spam dmesg if QP is in error state RDMA/qedr: Remove CQ spinlock from CM completion handlers RDMA/qedr: Return max inline data in QP query result RDMA/qedr: Return success when not changing QP state RDMA/qedr: Add uapi header qedr-abi.h RDMA/qedr: Fix MTU returned from QP query RDMA/core: Add the function ib_mtu_int_to_enum IB/vmw_pvrdma: Fix incorrect cleanup on pvrdma_pci_probe error path IB/vmw_pvrdma: Don't leak info from alloc_ucontext IB/cxgb3: fix misspelling in header guard ...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Martin Schwidefsky: "Another two bug fixes: - ptrace partial write information leak - a guest page hinting regression introduced with v4.6" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/mm: Fix cmma unused transfer from pgste into pte s390/ptrace: Preserve previous registers for short regset write
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Linus Torvalds authored
Merge branch 'stable/for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb Pull swiotlb fix from Konrad Rzeszutek Wilk: "An ARM fix in the Xen SWIOTLB - mainly the translation of physical to bus addresses was done just a tad too late" * 'stable/for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb: swiotlb-xen: update dev_addr after swapping pages
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git://github.com/awilliam/linux-vfioLinus Torvalds authored
Pull VFIO fix from Alex Williamson: "mdev IOMMU groups are not yet compatible with the powerpc SPAPR IOMMU backend, detect and fail group attach (Greg Kurz)" * tag 'vfio-v4.10-rc6' of git://github.com/awilliam/linux-vfio: vfio/spapr: fail tce_iommu_attach_group() when iommu_data is null
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Jack Morgenstein authored
If IPV6 has not been enabled in the underlying kernel, we must avoid calling IPV6 procedures in rdma_cm.ko. This requires using "IS_ENABLED(CONFIG_IPV6)" in "if" statements surrounding any code which calls external IPV6 procedures. In the instance fixed here, procedure cma_bind_addr() called ipv6_addr_type() -- which resulted in calling external procedure __ipv6_addr_type(). Fixes: 6c26a771 ("RDMA/cma: fix IPv6 address resolution") Cc: <stable@vger.kernel.org> # v4.2+ Cc: Spencer Baugh <sbaugh@catern.com> Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by:
Moni Shoua <monis@mellanox.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Jens Axboe authored
Merge branch 'stable/for-jens-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus Konrad writes: Please pull in your 'for-linus' branch two little fixes for Xen block front: One fix is for handling the XEN_PAGE_SIZE != PAGE_SIZE (4KB vs 64KB on ARM for example) mishandling while the other is fixing the accounting for the configuration changes.
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