- 31 Aug, 2017 12 commits
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Changed since v1 (Linus Torvalds) - remove now useless kvm_arch_mmu_notifier_invalidate_page() Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Tested-by: Mike Galbraith <efault@gmx.de> Tested-by: Adam Borowski <kilobyte@angband.pl> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: kvm@vger.kernel.org Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Roger Pau Monné <roger.pau@citrix.com> Cc: xen-devel@lists.xenproject.org (moderated for non-subscribers) Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Sudeep Dutt <sudeep.dutt@intel.com> Cc: Ashutosh Dixit <ashutosh.dixit@intel.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: iommu@lists.linux-foundation.org Cc: Joerg Roedel <jroedel@suse.de> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Cc: iommu@lists.linux-foundation.org Cc: Joerg Roedel <jroedel@suse.de> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: linux-rdma@vger.kernel.org Cc: Dean Luick <dean.luick@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Tested-by: Leon Romanovsky <leonro@mellanox.com> Cc: linux-rdma@vger.kernel.org Cc: Artemy Kovalyov <artemyko@mellanox.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Christian König <christian.koenig@amd.com> Cc: amd-gfx@lists.freedesktop.org Cc: Felix Kuehling <Felix.Kuehling@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and now are bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: Alistair Popple <alistair@popple.id.au> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Replace all mmu_notifier_invalidate_page() calls by *_invalidate_range() and make sure it is bracketed by calls to *_invalidate_range_start()/end(). Note that because we can not presume the pmd value or pte value we have to assume the worst and unconditionaly report an invalidation as happening. Changed since v2: - try_to_unmap_one() only one call to mmu_notifier_invalidate_range() - compute end with PAGE_SIZE << compound_order(page) - fix PageHuge() case in try_to_unmap_one() Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Bernhard Held <berny156@gmx.de> Cc: Adam Borowski <kilobyte@angband.pl> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Wanpeng Li <kernellwp@gmail.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Nadav Amit <nadav.amit@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: axie <axie@amd.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jérôme Glisse authored
Replace all mmu_notifier_invalidate_page() calls by *_invalidate_range() and make sure it is bracketed by calls to *_invalidate_range_start()/end(). Note that because we can not presume the pmd value or pte value we have to assume the worst and unconditionaly report an invalidation as happening. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Bernhard Held <berny156@gmx.de> Cc: Adam Borowski <kilobyte@angband.pl> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Wanpeng Li <kernellwp@gmail.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Nadav Amit <nadav.amit@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: axie <axie@amd.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 30 Aug, 2017 6 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimmLinus Torvalds authored
Pull libnvdimm fix from Dan Williams: "A single patch removing some structure definitions from a uapi header file. These payloads are never processed directly by the kernel they are simply passed through an ioctl as opaque blobs to the ACPI _DSM (Device Specific Method) interface. Userspace should not be depending on the kernel to define these payloads. We will instead provide these definitions via the existing libndctl (https://github.com/pmem/ndctl) project that has NVDIMM command helpers and other definitions" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: libnvdimm: clean up command definitions
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm fixes from Dave Airlie: "Two fixes (a vmwgfx and core drm fix) in the queue for 4.13 final, hopefully that is it" * tag 'drm-fixes-for-v4.13-rc8' of git://people.freedesktop.org/~airlied/linux: drm/vmwgfx: Fix F26 Wayland screen update issue drm/bridge/sii8620: Fix memory corruption
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "Three minor fixes: a NULL deref in qedf, an off by one in sg and a fix to IPR to prevent an error on initialisation" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qedf: Fix a potential NULL pointer dereference scsi: sg: off by one in sg_ioctl() scsi: ipr: Set no_report_opcodes for RAID arrays
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git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds authored
Pull UML fix from Richard Weinberger: "This contains a single fix for a regression which was introduced while the merge window" * 'for-linus-4.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: Fix check for _xstate for older hosts
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git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alphaLinus Torvalds authored
Pull alpha update from Matt Turner: "A few fixes and wires up some additional syscalls." [ Some of this is technically not really rc7 material, but it's alpha, and it all looks safe anyway. Matt explains: "My alpha has been offline, hence the very late-in-cycle pull request" and hasn't caused problems before, so he gets to slide. - Linus ] * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha: alpha: uapi: Add support for __SANE_USERSPACE_TYPES__ alpha: Define ioremap_wc alpha: Fix section mismatches alpha: support R_ALPHA_REFLONG relocations for module loading alpha: Fix typo in ev6-copy_user.S alpha: Package string routines together alpha: Update for new syscalls alpha: Fix build error without CONFIG_VGA_HOSE.
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git://people.freedesktop.org/~syeh/repos_linuxDave Airlie authored
Single vmwgfx fix. * 'drm-vmwgfx-fixes' of git://people.freedesktop.org/~syeh/repos_linux: drm/vmwgfx: Fix F26 Wayland screen update issue
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- 29 Aug, 2017 15 commits
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Sinclair Yeh authored
vmwgfx currently cannot support non-blocking commit because when vmw_*_crtc_page_flip is called, drm_atomic_nonblocking_commit() schedules the update on a thread. This means vmw_*_crtc_page_flip cannot rely on the new surface being bound before the subsequent dirty and flush operations happen. Cc: <stable@vger.kernel.org> # 4.12.x Signed-off-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Charmaine Lee <charmainel@vmware.com>
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git://anongit.freedesktop.org/git/drm-miscDave Airlie authored
Driver Changes: - bridge/sii8620: Fix out-of-bounds write to incorrect register Cc: Maciej Purski <m.purski@samsung.com> Cc: Andrzej Hajda <a.hajda@samsung.com> * tag 'drm-misc-fixes-2017-08-28' of git://anongit.freedesktop.org/git/drm-misc: drm/bridge/sii8620: Fix memory corruption
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Ben Hutchings authored
This fixes compiler errors in perf such as: tests/attr.c: In function 'store_event': tests/attr.c:66:27: error: format '%llu' expects argument of type 'long long unsigned int', but argument 6 has type '__u64 {aka long unsigned int}' [-Werror=format=] snprintf(path, PATH_MAX, "%s/event-%d-%llu-%d", dir, ^ Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Tested-by: Michael Cree <mcree@orcon.net.nz> Cc: stable@vger.kernel.org Signed-off-by: Matt Turner <mattst88@gmail.com>
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Guenter Roeck authored
Commit 3cc2dac5 ("drivers/video/fbdev/atyfb: Replace MTRR UC hole with strong UC") introduces calls to ioremap_wc and ioremap_uc. This causes build failures with alpha:allmodconfig. Map the missing functions to ioremap_nocache. Fixes: 3cc2dac5 ("drivers/video/fbdev/atyfb: Replace MTRR UC hole with strong UC") Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Matt Turner <mattst88@gmail.com>
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Matt Turner authored
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Michael Cree authored
Since commit 71810db2 (modversions: treat symbol CRCs as 32 bit quantities) R_ALPHA_REFLONG relocations can be required to load modules. This implements it. Tested-by: Bob Tracy <rct@gherkin.frus.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Michael Cree <mcree@orcon.net.nz> Signed-off-by: Matt Turner <mattst88@gmail.com>
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Richard Henderson authored
Patch 85250231 introduced a typo. That said, the identity AND insns added by that patch are more clearly written as MOV. At the same time, re-schedule the ev6 version so that the first dispatch can execute in parallel. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Matt Turner <mattst88@gmail.com>
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Richard Henderson authored
There are direct branches between {str*cpy,str*cat} and stx*cpy. Ensure the branches are within range by merging these objects. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Matt Turner <mattst88@gmail.com>
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Richard Henderson authored
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Matt Turner <mattst88@gmail.com>
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Matt Turner authored
pci_vga_hose is #defined to 0 in include/asm/vga.h if CONFIG_VGA_HOSE is not set. Signed-off-by: Matt Turner <mattst88@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull cgroup fix from Tejun Heo: "A late but obvious fix for cgroup. I broke the 'cpuset.memory_pressure' file a long time ago (v4.4) by accidentally deleting its file index, which made it a duplicate of the 'cpuset.memory_migrate' file. Spotted and fixed by Waiman" * 'for-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cpuset: Fix incorrect memory_pressure control file mapping
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libataLinus Torvalds authored
Pull libata fixes from Tejun Heo: "Late fixes for libata. There's a minor platform driver fix but the important one is READ LOG PAGE. This is a new ATA command which is used to test some optional features but it broke probing of some devices - they locked up instead of failing the unknown command. Christoph tried blacklisting, but, after finding out there are multiple devices which fail this way, backed off to testing feature bit in IDENTIFY data first, which is a bit lossy (we can miss features on some devices) but should be a lot safer" * 'for-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: Revert "libata: quirk read log on no-name M.2 SSD" libata: check for trusted computing in IDENTIFY DEVICE data libata: quirk read log on no-name M.2 SSD sata: ahci-da850: Fix some error handling paths in 'ahci_da850_probe()'
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Linus Torvalds authored
This reverts commit aac2fea9. It turns out that that patch was complete and utter garbage, and broke KVM, resulting in odd oopses. Quoting Andrea Arcangeli: "The aforementioned commit has 3 bugs. 1) mmu_notifier_invalidate_range cannot be used in replacement of mmu_notifier_invalidate_range_start/end. For KVM mmu_notifier_invalidate_range is a noop and rightfully so. A MMU notifier implementation has to implement either ->invalidate_range method or the invalidate_range_start/end methods, not both. And if you implement invalidate_range_start/end like KVM is forced to do, calling mmu_notifier_invalidate_range in common code is a noop for KVM. For those MMU notifiers that can get away only implementing ->invalidate_range, the ->invalidate_range is implicitly called by mmu_notifier_invalidate_range_end(). And only those secondary MMUs that share the same pagetable with the primary MMU (like AMD iommuv2) can get away only implementing ->invalidate_range. So all cases (THP on/off) are broken right now. To fix this is enough to replace mmu_notifier_invalidate_range with mmu_notifier_invalidate_range_start;mmu_notifier_invalidate_range_end. Either that or call multiple mmu_notifier_invalidate_page like before. 2) address + (1UL << compound_order(page) is buggy, it should be PAGE_SIZE << compound_order(page), it's bytes not pages, 2M not 512. 3) The whole invalidate_range thing was an attempt to call a single invalidate while walking multiple 4k ptes that maps the same THP (after a pmd virtual split without physical compound page THP split). It's unclear if the rmap_walk will always provide an address that is 2M aligned as parameter to try_to_unmap_one, in presence of THP. I think it needs also an address &= (PAGE_SIZE << compound_order(page)) - 1 to be safe" In general, we should stop making excuses for horrible MMU notifier users. It's much more important that the core VM is sane and safe, than letting MMU notifiers sleep. So if some MMU notifier is sleeping under a spinlock, we need to fix the notifier, not try to make excuses for that garbage in the core VM. Reported-and-tested-by: Bernhard Held <berny156@gmx.de> Reported-and-tested-by: Adam Borowski <kilobyte@angband.pl> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Wanpeng Li <kernellwp@gmail.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Nadav Amit <nadav.amit@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Jérôme Glisse <jglisse@redhat.com> Cc: axie <axie@amd.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tejun Heo authored
This reverts commit 35f0b6a7. We now conditionalize issuing of READ LOG PAGE on the TRUSTED COMPUTING SUPPORTED bit in the identity data and this shouldn't be necessary. Signed-off-by: Tejun Heo <tj@kernel.org>
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Christoph Hellwig authored
ATA-8 and later mirrors the TRUSTED COMPUTING SUPPORTED bit in word 48 of the IDENTIFY DEVICE data. Check this before issuing a READ LOG PAGE command to avoid issues with buggy devices. The only downside is that we can't support Security Send / Receive for a device with an older revision due to the conflicting use of this field in earlier specifications. tj: The reason we need this is because some devices which don't support READ LOG PAGE lock up after getting issued that command. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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- 28 Aug, 2017 7 commits
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Linus Torvalds authored
Commit 3510ca20 ("Minor page waitqueue cleanups") made the page queue code always add new waiters to the back of the queue, which helps upcoming patches to batch the wakeups for some horrid loads where the wait queues grow to thousands of entries. However, I forgot about the nasrt add_page_wait_queue() special case code that is only used by the cachefiles code. That one still continued to add the new wait queue entries at the beginning of the list. Fix it, because any sane batched wakeup will require that we don't suddenly start getting new entries at the beginning of the list that we already handled in a previous batch. [ The current code always does the whole list while holding the lock, so wait queue ordering doesn't matter for correctness, but even then it's better to add later entries at the end from a fairness standpoint ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tejun Heo authored
When !NUMA, cpumask_of_node(@node) equals cpu_online_mask regardless of @node. The assumption seems that if !NUMA, there shouldn't be more than one node and thus reporting cpu_online_mask regardless of @node is correct. However, that assumption was broken years ago to support DISCONTIGMEM and whether a system has multiple nodes or not is separately controlled by NEED_MULTIPLE_NODES. This means that, on a system with !NUMA && NEED_MULTIPLE_NODES, cpumask_of_node() will report cpu_online_mask for all possible nodes, indicating that the CPUs are associated with multiple nodes which is an impossible configuration. This bug has been around forever but doesn't look like it has caused any noticeable symptoms. However, it triggers a WARN recently added to workqueue to verify NUMA affinity configuration. Fix it by reporting empty cpumask on non-zero nodes if !NUMA. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-and-tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Alexey Brodkin authored
Recent commit a8ec3ee8 "arc: Mask individual IRQ lines during core INTC init" breaks interrupt handling on ARCv2 SMP systems. That commit masked all interrupts at onset, as some controllers on some boards (customer as well as internal), would assert interrutps early before any handlers were installed. For SMP systems, the masking was done at each cpu's core-intc. Later, when the IRQ was actually requested, it was unmasked, but only on the requesting cpu. For "common" interrupts, which were wired up from the 2nd level IDU intc, this was as issue as they needed to be enabled on ALL the cpus (given that IDU IRQs are by default served Round Robin across cpus) So fix that by NOT masking "common" interrupts at core-intc, but instead at the 2nd level IDU intc (latter already being done in idu_of_init()) Fixes: a8ec3ee8 ("arc: Mask individual IRQ lines during core INTC init") Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> [vgupta: reworked changelog, removed the extraneous idu_irq_mask_raw()] Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Helge Deller authored
Commit 464d6242 ("select: switch compat_{get,put}_fd_set() to compat_{get,put}_bitmap()") changed the calculation on how many bytes need to be zeroed when userspace handed over a NULL pointer for a fdset array in the select syscall. The calculation was changed in compat_get_fd_set() wrongly from memset(fdset, 0, ((nr + 1) & ~1)*sizeof(compat_ulong_t)); to memset(fdset, 0, ALIGN(nr, BITS_PER_LONG)); The ALIGN(nr, BITS_PER_LONG) calculates the number of _bits_ which need to be zeroed in the target fdset array (rounded up to the next full bits for an unsigned long). But the memset() call expects the number of _bytes_ to be zeroed. This leads to clearing more memory than wanted (on the stack area or even at kmalloc()ed memory areas) and to random kernel crashes as we have seen them on the parisc platform. The correct change should have been memset(fdset, 0, (ALIGN(nr, BITS_PER_LONG) / BITS_PER_LONG) * BYTES_PER_LONG); which is the same as can be archieved with a call to zero_fd_set(nr, fdset). Fixes: 464d6242 ("select: switch compat_{get,put}_fd_set() to compat_{get,put}_bitmap()" Acked-by: : Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds authored
Pull c6x tweaks from Mark Salter. * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: c6x: Convert to using %pOF instead of full_name c6x: defconfig: Cleanup from old Kconfig options
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Christoph Hellwig authored
Ido reported that reading the log page on his systems fails, so quirk it as it won't support ZBC or security protocols. Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Ido Schimmel <idosch@mellanox.com> Tested-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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Dan Williams authored
Remove the command payloads that do not have an associated libnvdimm ioctl. I.e. remove the payloads that would only ever be carried in the ND_CMD_CALL envelope. This prevents userspace from growing unnecessary dependencies on this kernel header when userspace already has everything it needs to craft and send these commands. Cc: Jerry Hoemann <jerry.hoemann@hpe.com> Reported-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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