Eric Lee / smarc-fsl-linux-kernel

12 Feb, 2007

1 commit

10 Feb, 2007

1 commit

  • 4ec031166   [PATCH] kill eth_io_copy_and_sum() ... Browse Code »

    On all targets that sucker boils down to memcpy_fromio(sbk->data, from, len).
    The function name is highly misguiding (it _never_ does any checksums), the
    last argument is just a noise and simply expanding the call to memcpy_fromio()
    gives shorter and more readable source. For a lot of reasons it has almost
    no remaining users, so it's better to just outright kill it.

    Signed-off-by: Al Viro
    Signed-off-by: Linus Torvalds

    Al Viro
     

09 Jan, 2007

1 commit

  • a6f36be32   [ARM] pass vma for flush_anon_page() ... Browse Code »

    Since get_user_pages() may be used with processes other than the
    current process and calls flush_anon_page(), flush_anon_page() has to
    cope in some way with non-current processes.

    It may not be appropriate, or even desirable to flush a region of
    virtual memory cache in the current process when that is different to
    the process that we want the flush to occur for.

    Therefore, pass the vma into flush_anon_page() so that the architecture
    can work out whether the 'vmaddr' is for the current process or not.

    Signed-off-by: Russell King

    Russell King
     

14 Dec, 2006

1 commit

  • ec8c0446b   [PATCH] Optimize D-cache alias handling on fork ... Browse Code »

    Virtually index, physically tagged cache architectures can get away
    without cache flushing when forking. This patch adds a new cache
    flushing function flush_cache_dup_mm(struct mm_struct *) which for the
    moment I've implemented to do the same thing on all architectures
    except on MIPS where it's a no-op.

    Signed-off-by: Ralf Baechle
    Signed-off-by: Linus Torvalds

    Ralf Baechle
     

09 Dec, 2006

1 commit

  • be90038a2   [PATCH] tty: preparatory structures for termios revamp ... Browse Code »

    In order to sort out our struct termios and add proper speed control we need
    to separate the kernel and user termios structures. Glibc is fine but the
    other libraries rely on the kernel exported struct termios and we need to
    extend this without breaking the ABI/API

    To do so we add a struct ktermios which is the kernel view of a termios
    structure and overlaps the struct termios with extra fields on the end for
    now. (That limitation will go away in later patches). Some platforms (eg
    alpha) planned ahead and thus use the same struct for both, others did not.

    This just adds the structures but does not use them, it seems a sensible
    splitting point for bisect if there are compile failures (not that I expect
    them)

    Signed-off-by: Alan Cox
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alan Cox
     

08 Dec, 2006

3 commits

  • d3fa72e45   [PATCH] Pass struct dev pointer to dma_cache_sync() ... Browse Code »

    Pass struct dev pointer to dma_cache_sync()

    dma_cache_sync() is ill-designed in that it does not have a struct device
    pointer argument which makes proper support for systems that consist of a
    mix of coherent and non-coherent DMA devices hard. Change dma_cache_sync
    to take a struct device pointer as first argument and fix all its callers
    to pass it.

    Signed-off-by: Ralf Baechle
    Cc: James Bottomley
    Cc: "David S. Miller"
    Cc: Greg KH
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ralf Baechle
     
  • f67637ee4   [PATCH] Add struct dev pointer to dma_is_consistent() ... Browse Code »

    dma_is_consistent() is ill-designed in that it does not have a struct
    device pointer argument which makes proper support for systems that consist
    of a mix of coherent and non-coherent DMA devices hard. Change
    dma_is_consistent to take a struct device pointer as first argument and fix
    the sole caller to pass it.

    Signed-off-by: Ralf Baechle
    Cc: James Bottomley
    Cc: "David S. Miller"
    Cc: Greg KH
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ralf Baechle
     
  • a866374ae   [PATCH] mm: pagefault_{disable,enable}() ... Browse Code »

    Introduce pagefault_{disable,enable}() and use these where previously we did
    manual preempt increments/decrements to make the pagefault handler do the
    atomic thing.

    Currently they still rely on the increased preempt count, but do not rely on
    the disabled preemption, this might go away in the future.

    (NOTE: the extra barrier() in pagefault_disable might fix some holes on
    machines which have too many registers for their own good)

    [heiko.carstens@de.ibm.com: s390 fix]
    Signed-off-by: Peter Zijlstra
    Acked-by: Nick Piggin
    Cc: Martin Schwidefsky
    Signed-off-by: Heiko Carstens
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Peter Zijlstra
     

03 Dec, 2006

1 commit

02 Dec, 2006

2 commits

  • 4549df891   Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 ... Browse Code »

    * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (36 commits)
    Driver core: show drivers in /sys/module/
    Documentation/driver-model/platform.txt update/rewrite
    Driver core: platform_driver_probe(), can save codespace
    driver core: Use klist_remove() in device_move()
    driver core: Introduce device_move(): move a device to a new parent.
    Driver core: make drivers/base/core.c:setup_parent() static
    driver core: Introduce device_find_child().
    sysfs: sysfs_write_file() writes zero terminated data
    cpu topology: consider sysfs_create_group return value
    Driver core: Call platform_notify_remove later
    ACPI: Change ACPI to use dev_archdata instead of firmware_data
    Driver core: add dev_archdata to struct device
    Driver core: convert sound core to use struct device
    Driver core: change mem class_devices to be real devices
    Driver core: convert fb code to use struct device
    Driver core: convert firmware code to use struct device
    Driver core: convert mmc code to use struct device
    Driver core: convert ppdev code to use struct device
    Driver core: convert PPP code to use struct device
    Driver core: convert cpuid code to use struct device
    ...

    Linus Torvalds
     
  • c6dbaef22   Driver core: add dev_archdata to struct device ... Browse Code »

    Add arch specific dev_archdata to struct device

    Adds an arch specific struct dev_arch to struct device. This enables
    architecture to add specific fields to every device in the system, like
    DMA operation pointers, NUMA node ID, firmware specific data, etc...

    Signed-off-by: Benjamin Herrenschmidt
    Acked-by: Andi Kleen
    Acked-By: David Howells
    Signed-off-by: Greg Kroah-Hartman

    Benjamin Herrenschmidt
     

30 Nov, 2006

1 commit

27 Nov, 2006

1 commit

07 Oct, 2006

2 commits

04 Oct, 2006

21 commits

02 Oct, 2006

1 commit

  • 3db03b4af   [PATCH] rename the provided execve functions to kernel_execve ... Browse Code »

    Some architectures provide an execve function that does not set errno, but
    instead returns the result code directly. Rename these to kernel_execve to
    get the right semantics there. Moreover, there is no reasone for any of these
    architectures to still provide __KERNEL_SYSCALLS__ or _syscallN macros, so
    remove these right away.

    [akpm@osdl.org: build fix]
    [bunk@stusta.de: build fix]
    Signed-off-by: Arnd Bergmann
    Cc: Andi Kleen
    Acked-by: Paul Mackerras
    Cc: Benjamin Herrenschmidt
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Cc: Russell King
    Cc: Ian Molton
    Cc: Mikael Starvik
    Cc: David Howells
    Cc: Yoshinori Sato
    Cc: Hirokazu Takata
    Cc: Ralf Baechle
    Cc: Kyle McMartin
    Cc: Heiko Carstens
    Cc: Martin Schwidefsky
    Cc: Paul Mundt
    Cc: Kazumoto Kojima
    Cc: Richard Curnow
    Cc: William Lee Irwin III
    Cc: "David S. Miller"
    Cc: Jeff Dike
    Cc: Paolo 'Blaisorblade' Giarrusso
    Cc: Miles Bader
    Cc: Chris Zankel
    Cc: "Luck, Tony"
    Cc: Geert Uytterhoeven
    Cc: Roman Zippel
    Signed-off-by: Adrian Bunk
    Cc: Arnd Bergmann
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arnd Bergmann
     

01 Oct, 2006

1 commit

  • ef6edc974   [PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks ... Browse Code »

    On systems running with virtual cpus there is optimization potential in
    regard to spinlocks and rw-locks. If the virtual cpu that has taken a lock
    is known to a cpu that wants to acquire the same lock it is beneficial to
    yield the timeslice of the virtual cpu in favour of the cpu that has the
    lock (directed yield).

    With CONFIG_PREEMPT="n" this can be implemented by the architecture without
    common code changes. Powerpc already does this.

    With CONFIG_PREEMPT="y" the lock loops are coded with _raw_spin_trylock,
    _raw_read_trylock and _raw_write_trylock in kernel/spinlock.c. If the lock
    could not be taken cpu_relax is called. A directed yield is not possible
    because cpu_relax doesn't know anything about the lock. To be able to
    yield the lock in favour of the current lock holder variants of cpu_relax
    for spinlocks and rw-locks are needed. The new _raw_spin_relax,
    _raw_read_relax and _raw_write_relax primitives differ from cpu_relax
    insofar that they have an argument: a pointer to the lock structure.

    Signed-off-by: Martin Schwidefsky
    Cc: Ingo Molnar
    Cc: Paul Mackerras
    Cc: Haavard Skinnemoen
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Martin Schwidefsky
     

26 Sep, 2006

1 commit

  • 46a82b2d5   [PATCH] Standardize pxx_page macros ... Browse Code »

    One of the changes necessary for shared page tables is to standardize the
    pxx_page macros. pte_page and pmd_page have always returned the struct
    page associated with their entry, while pte_page_kernel and pmd_page_kernel
    have returned the kernel virtual address. pud_page and pgd_page, on the
    other hand, return the kernel virtual address.

    Shared page tables needs pud_page and pgd_page to return the actual page
    structures. There are very few actual users of these functions, so it is
    simple to standardize their usage.

    Since this is basic cleanup, I am submitting these changes as a standalone
    patch. Per Hugh Dickins' comments about it, I am also changing the
    pxx_page_kernel macros to pxx_page_vaddr to clarify their meaning.

    Signed-off-by: Dave McCracken
    Cc: Hugh Dickins
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dave McCracken
     

19 Sep, 2006

1 commit