Eric Lee / smarc-fsl-linux-kernel

13 Jan, 2006

14 commits

11 Jan, 2006

1 commit

10 Jan, 2006

2 commits

09 Jan, 2006

2 commits

  • f8aaeacec   [PATCH] consolidate asm/futex.h ... Browse Code »

    Most of the architectures have the same asm/futex.h. This consolidates them
    into asm-generic, with the arches including it from their own asm/futex.h.

    In the case of UML, this reverts the old broken futex.h and goes back to using
    the same one as almost everyone else.

    Signed-off-by: Jeff Dike
    Cc: Paolo 'Blaisorblade' Giarrusso
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jeff Dike
     
  • 1fd73c6b6   [PATCH] Kill L1_CACHE_SHIFT_MAX ... Browse Code »

    Kill L1_CACHE_SHIFT from all arches. Since L1_CACHE_SHIFT_MAX is not used
    anymore with the introduction of INTERNODE_CACHE, kill L1_CACHE_SHIFT_MAX.

    Signed-off-by: Ravikiran Thirumalai
    Signed-off-by: Shai Fultheim
    Signed-off-by: Andi Kleen
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ravikiran G Thirumalai
     

07 Jan, 2006

3 commits

  • b14a72d6c   [PATCH] m68knommu: remove enable_irq_nosync() ... Browse Code »

    m68k, m68knommu and h8300 define this, but it's not actually used
    anywhere.

    Signed-off-by: Christoph Hellwig
    Cc: Greg Ungerer
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     
  • d3cb48714   [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 ... Browse Code »

    Several counters already have the need to use 64 atomic variables on 64 bit
    platforms (see mm_counter_t in sched.h). We have to do ugly ifdefs to fall
    back to 32 bit atomic on 32 bit platforms.

    The VM statistics patch that I am working on will also make more extensive
    use of atomic64.

    This patch introduces a new type atomic_long_t by providing definitions in
    asm-generic/atomic.h that works similar to the c "long" type. Its 32 bits
    on 32 bit platforms and 64 bits on 64 bit platforms.

    Also cleans up the determination of the mm_counter_t in sched.h.

    Signed-off-by: Christoph Lameter
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     
  • f6b3ec238   [PATCH] madvise(MADV_REMOVE): remove pages from tmpfs shm backing store ... Browse Code »

    Here is the patch to implement madvise(MADV_REMOVE) - which frees up a
    given range of pages & its associated backing store. Current
    implementation supports only shmfs/tmpfs and other filesystems return
    -ENOSYS.

    "Some app allocates large tmpfs files, then when some task quits and some
    client disconnect, some memory can be released. However the only way to
    release tmpfs-swap is to MADV_REMOVE". - Andrea Arcangeli

    Databases want to use this feature to drop a section of their bufferpool
    (shared memory segments) - without writing back to disk/swap space.

    This feature is also useful for supporting hot-plug memory on UML.

    Concerns raised by Andrew Morton:

    - "We have no plan for holepunching! If we _do_ have such a plan (or
    might in the future) then what would the API look like? I think
    sys_holepunch(fd, start, len), so we should start out with that."

    - Using madvise is very weird, because people will ask "why do I need to
    mmap my file before I can stick a hole in it?"

    - None of the other madvise operations call into the filesystem in this
    manner. A broad question is: is this capability an MM operation or a
    filesytem operation? truncate, for example, is a filesystem operation
    which sometimes has MM side-effects. madvise is an mm operation and with
    this patch, it gains FS side-effects, only they're really, really
    significant ones."

    Comments:

    - Andrea suggested the fs operation too but then it's more efficient to
    have it as a mm operation with fs side effects, because they don't
    immediatly know fd and physical offset of the range. It's possible to
    fixup in userland and to use the fs operation but it's more expensive,
    the vmas are already in the kernel and we can use them.

    Short term plan & Future Direction:

    - We seem to need this interface only for shmfs/tmpfs files in the short
    term. We have to add hooks into the filesystem for correctness and
    completeness. This is what this patch does.

    - In the future, plan is to support both fs and mmap apis also. This
    also involves (other) filesystem specific functions to be implemented.

    - Current patch doesn't support VM_NONLINEAR - which can be addressed in
    the future.

    Signed-off-by: Badari Pulavarty
    Cc: Hugh Dickins
    Cc: Andrea Arcangeli
    Cc: Michael Kerrisk
    Cc: Ulrich Drepper
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Badari Pulavarty
     

04 Jan, 2006

1 commit

14 Nov, 2005

4 commits

  • 8426e1f6a   [PATCH] atomic: inc_not_zero ... Browse Code »

    Introduce an atomic_inc_not_zero operation. Make this a special case of
    atomic_add_unless because lockless pagecache actually wants
    atomic_inc_not_negativeone due to its offset refcount.

    Signed-off-by: Nick Piggin
    Cc: "Paul E. McKenney"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nick Piggin
     
  • 4a6dae6d3   [PATCH] atomic: cmpxchg ... Browse Code »

    Introduce an atomic_cmpxchg operation.

    Signed-off-by: Nick Piggin
    Cc: "Paul E. McKenney"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nick Piggin
     
  • 3b66a1edb   [PATCH] m68k: convert thread flags to use bit fields ... Browse Code »

    Remove task_work structure, use the standard thread flags functions and use
    shifts in entry.S to test the thread flags. Add a few local labels to entry.S
    to allow gas to generate short jumps.

    Finally it changes a number of inline functions in thread_info.h to macros to
    delay the current_thread_info() usage, which requires on m68k a structure
    (task_struct) not yet defined at this point.

    Signed-off-by: Roman Zippel
    Cc: Al Viro
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Roman Zippel
     
  • abd03753b   [PATCH] m68k: m68k-specific thread_info changes ... Browse Code »

    a) added embedded thread_info [m68k processor.h]

    b) added missing symbols in asm-offsets.c

    c) task_thread_info() and friends in asm-m68k/thread_info.h

    d) made m68k thread_info.h included by m68k processor.h, not the other way
    round.

    Signed-off-by: Al Viro
    Signed-off-by: Roman Zippel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Al Viro
     

08 Nov, 2005

2 commits

31 Oct, 2005

3 commits

  • 727a53bd5   [PATCH] semaphore: Remove __MUTEX_INITIALIZER() ... Browse Code »

    __MUTEX_INITIALIZER() has no users, and equates to the more commonly used
    DECLARE_MUTEX(), thus making it pretty much redundant. Remove it for good.

    Signed-off-by: Arthur Othieno
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arthur Othieno
     
  • dfb7dac3a   [PATCH] unify sys_ptrace prototype ... Browse Code »

    Make sure we always return, as all syscalls should. Also move the common
    prototype to

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Miklos Szeredi
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     
  • d61780c0d   [PATCH] remove some more check_region stuff ... Browse Code »

    Removed some more references to check_region().

    I checked these changes into the 'checkreg' branch of
    rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6.git

    The only valid references remaining are in:
    drivers/scsi/advansys.c
    drivers/scsi/BusLogic.c
    drivers/cdrom/sbpcd.c
    sound/oss/pss.c

    Remove last vestiges of ide_check_region()
    drivers/char/specialix: trim trailing whitespace
    drivers/char/specialix: eliminate use of check_region()
    Remove outdated and unused references to check_region()
    [sound oss] remove check_region() usage from cs4232, wavfront
    [netdrvr eepro] trim trailing whitespace
    [netdrvr eepro] remove check_region() usage

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

    Jeff Garzik
     

22 Sep, 2005

1 commit

  • 676067cfe   [PATCH] Remove unused var from asm/futex.h ... Browse Code »

    As recently done by Russell King for ARM, commit
    4732efbeb997189d9f9b04708dc26bf8613ed721 introduces a generic asm/futex.h copied
    along most arches, which includes a "-ENOSYS support" to be changed if needed.
    However, it includes an unused var (taken from the "real" version) which GCC
    warns about.

    Remove it from all arches having that file version (i.e. same GIT id).
    $ git-diff-tree -r HEAD
    and
    $ git-ls-tree -r HEAD include/|grep 9feff4ce1424bc390608326240be369eb13aa648

    may be more interesting than looking at the patch itself, to make sure I've
    just copied the arm header to all other archs having the original dummy version
    of this file.

    Cc: Jakub Jelinek
    Signed-off-by: Paolo 'Blaisorblade' Giarrusso
    Signed-off-by: Linus Torvalds

    Paolo 'Blaisorblade' Giarrusso
     

13 Sep, 2005

1 commit

08 Sep, 2005

6 commits