1. 05 Jun, 2014 5 commits
    • Jens Axboe's avatar
      block: add notion of a chunk size for request merging · 762380ad
      Jens Axboe authored
      
      
      Some drivers have different limits on what size a request should
      optimally be, depending on the offset of the request. Similar to
      dividing a device into chunks. Add a setting that allows the driver
      to inform the block layer of such a chunk size. The block layer will
      then prevent merging across the chunks.
      
      This is needed to optimally support NVMe with a non-zero stripe size.
      Signed-off-by: default avatarJens Axboe <axboe@fb.com>
      762380ad
    • Linus Torvalds's avatar
      Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next · 046f1533
      Linus Torvalds authored
      Pull x86 EFI updates from Peter Anvin:
       "A collection of EFI changes.  The perhaps most important one is to
        fully save and restore the FPU state around each invocation of EFI
        runtime, and to not choke on non-ASCII characters in the boot stub"
      
      * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efivars: Add compatibility code for compat tasks
        efivars: Refactor sanity checking code into separate function
        efivars: Stop passing a struct argument to efivar_validate()
        efivars: Check size of user object
        efivars: Use local variables instead of a pointer dereference
        x86/efi: Save and restore FPU context around efi_calls (i386)
        x86/efi: Save and restore FPU context around efi_calls (x86_64)
        x86/efi: Implement a __efi_call_virt macro
        x86, fpu: Extend the use of static_cpu_has_safe
        x86/efi: Delete most of the efi_call* macros
        efi: x86: Handle arbitrary Unicode characters
        efi: Add get_dram_base() helper function
        efi: Add shared printk wrapper for consistent prefixing
        efi: create memory map iteration helper
        efi: efi-stub-helper cleanup
      046f1533
    • Linus Torvalds's avatar
      Merge branch 'x86/vdso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next · a0abcf2e
      Linus Torvalds authored
      Pull x86 cdso updates from Peter Anvin:
       "Vdso cleanups and improvements largely from Andy Lutomirski.  This
        makes the vdso a lot less ''special''"
      
      * 'x86/vdso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/vdso, build: Make LE access macros clearer, host-safe
        x86/vdso, build: Fix cross-compilation from big-endian architectures
        x86/vdso, build: When vdso2c fails, unlink the output
        x86, vdso: Fix an OOPS accessing the HPET mapping w/o an HPET
        x86, mm: Replace arch_vma_name with vm_ops->name for vsyscalls
        x86, mm: Improve _install_special_mapping and fix x86 vdso naming
        mm, fs: Add vm_ops->name as an alternative to arch_vma_name
        x86, vdso: Fix an OOPS accessing the HPET mapping w/o an HPET
        x86, vdso: Remove vestiges of VDSO_PRELINK and some outdated comments
        x86, vdso: Move the vvar and hpet mappings next to the 64-bit vDSO
        x86, vdso: Move the 32-bit vdso special pages after the text
        x86, vdso: Reimplement vdso.so preparation in build-time C
        x86, vdso: Move syscall and sysenter setup into kernel/cpu/common.c
        x86, vdso: Clean up 32-bit vs 64-bit vdso params
        x86, mm: Ensure correct alignment of the fixmap
      a0abcf2e
    • Linus Torvalds's avatar
      Merge branch 'x86/espfix' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next · 2071b3e3
      Linus Torvalds authored
      Pull x86-64 espfix changes from Peter Anvin:
       "This is the espfix64 code, which fixes the IRET information leak as
        well as the associated functionality problem.  With this code applied,
        16-bit stack segments finally work as intended even on a 64-bit
        kernel.
      
        Consequently, this patchset also removes the runtime option that we
        added as an interim measure.
      
        To help the people working on Linux kernels for very small systems,
        this patchset also makes these compile-time configurable features"
      
      * 'x86/espfix' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        Revert "x86-64, modify_ldt: Make support for 16-bit segments a runtime option"
        x86, espfix: Make it possible to disable 16-bit support
        x86, espfix: Make espfix64 a Kconfig option, fix UML
        x86, espfix: Fix broken header guard
        x86, espfix: Move espfix definitions into a separate header file
        x86-32, espfix: Remove filter for espfix32 due to race
        x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit stack
      2071b3e3
    • Linus Torvalds's avatar
      Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next · 9df0fe64
      Linus Torvalds authored
      Pull x86 x32 ABI fix from Peter Anvin:
       "A single fix for the x32 ABI: the io_setup() and io_submit() system
        call need to use the compat stubs"
      
      * 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, x32: Use compat shims for io_{setup,submit}
      9df0fe64
  2. 04 Jun, 2014 35 commits