Eric Lee / smarc-fsl-linux-kernel

03 Apr, 2008

1 commit

  • dd135ebbd   kvm: provide kvm.h for all architecture: fixes headers_install ... Browse Code »

    Currently include/linux/kvm.h is not considered by make headers_install,
    because Kbuild cannot handle " unifdef-$(CONFIG_FOO) += foo.h. This problem
    was introduced by

    commit fb56dbb31c4738a3918db81fd24da732ce3b4ae6
    Author: Avi Kivity
    Date: Sun Dec 2 10:50:06 2007 +0200

    KVM: Export include/linux/kvm.h only if $ARCH actually supports KVM

    Currently, make headers_check barfs due to , which
    includes, not existing. Rather than add a zillion s, export kvm.
    only if the arch actually supports it.

    Signed-off-by: Avi Kivity

    which makes this an 2.6.25 regression.

    One way of solving the issue is to enhance Kbuild, but Avi and David conviced
    me, that changing headers_install is not the way to go. This patch changes
    the definition for linux/kvm.h to unifdef-y.

    If  unifdef-y is used for linux/kvm.h "make headers_check" will fail on all
    architectures without asm/kvm.h. Therefore, this patch also provides
    asm/kvm.h on all architectures.

    Signed-off-by: Christian Borntraeger
    Acked-by: Avi Kivity
    Cc: Sam Ravnborg
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christian Borntraeger
     

05 Mar, 2008

2 commits

15 Feb, 2008

2 commits

10 Feb, 2008

1 commit

  • 941edd030   m68knommu: add pgtable_t ... Browse Code »

    CC init/main.o
    In file included from include2/asm/uaccess.h:8,
    from include/linux/poll.h:13,
    from include/linux/rtc.h:113,
    from include/linux/efi.h:19,
    from linux-2.6/init/main.c:43:
    include/linux/mm.h:1151:
    error: expected declaration specifiers or '...' before 'pgtable_t'

    Signed-off-by: Martin Schwidefsky
    Reported-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Martin Schwidefsky
     

09 Feb, 2008

1 commit

  • bdc807871   avoid overflows in kernel/time.c ... Browse Code »

    When the conversion factor between jiffies and milli- or microseconds is
    not a single multiply or divide, as for the case of HZ == 300, we currently
    do a multiply followed by a divide. The intervening result, however, is
    subject to overflows, especially since the fraction is not simplified (for
    HZ == 300, we multiply by 300 and divide by 1000).

    This is exposed to the user when passing a large timeout to poll(), for
    example.

    This patch replaces the multiply-divide with a reciprocal multiplication on
    32-bit platforms. When the input is an unsigned long, there is no portable
    way to do this on 64-bit platforms there is no portable way to do this
    since it requires a 128-bit intermediate result (which gcc does support on
    64-bit platforms but may generate libgcc calls, e.g. on 64-bit s390), but
    since the output is a 32-bit integer in the cases affected, just simplify
    the multiply-divide (*3/10 instead of *300/1000).

    The reciprocal multiply used can have off-by-one errors in the upper half
    of the valid output range. This could be avoided at the expense of having
    to deal with a potential 65-bit intermediate result. Since the intent is
    to avoid overflow problems and most of the other time conversions are only
    semiexact, the off-by-one errors were considered an acceptable tradeoff.

    At Ralf Baechle's suggestion, this version uses a Perl script to compute
    the necessary constants. We already have dependencies on Perl for kernel
    compiles. This does, however, require the Perl module Math::BigInt, which
    is included in the standard Perl distribution starting with version 5.8.0.
    In order to support older versions of Perl, include a table of canned
    constants in the script itself, and structure the script so that
    Math::BigInt isn't required if pulling values from said table.

    Running the script requires that the HZ value is available from the
    Makefile. Thus, this patch also adds the Kconfig variable CONFIG_HZ to the
    architectures which didn't already have it (alpha, cris, frv, h8300, m32r,
    m68k, m68knommu, sparc, v850, and xtensa.) It does *not* touch the sh or
    sh64 architectures, since Paul Mundt has dealt with those separately in the
    sh tree.

    Signed-off-by: H. Peter Anvin
    Cc: Ralf Baechle ,
    Cc: Sam Ravnborg ,
    Cc: Paul Mundt ,
    Cc: Richard Henderson ,
    Cc: Michael Starvik ,
    Cc: David Howells ,
    Cc: Yoshinori Sato ,
    Cc: Hirokazu Takata ,
    Cc: Geert Uytterhoeven ,
    Cc: Roman Zippel ,
    Cc: William L. Irwin ,
    Cc: Chris Zankel ,
    Cc: H. Peter Anvin ,
    Cc: Jan Engelhardt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    H. Peter Anvin
     

08 Feb, 2008

2 commits

07 Feb, 2008

1 commit

  • 870b8f8c4   remove mm_{ptov,vtop}() ... Browse Code »

    This patch removes the unused mm_{ptov,vtop}().

    Signed-off-by: Adrian Bunk
    Acked-by: Greg Ungerer
    Acked-by: Bryan Wu
    Cc: Miles Bader
    Cc: Yoshinori Sato
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

06 Feb, 2008

1 commit

03 Feb, 2008

1 commit

01 Feb, 2008

2 commits

29 Jan, 2008

1 commit

06 Nov, 2007

1 commit

  • 001e09e86   m68knommu: fix pread/pwrite defines ... Browse Code »

    Fix system call defines for system call 180 and 181 to match the underlying
    system call table function entries. System call 180 calls sys_pread64, and
    181 calls sys_pwrite64, so make the definitions match.

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

    Greg Ungerer
     

24 Oct, 2007

3 commits

23 Oct, 2007

6 commits

  • ba1c28a94   Merge branch 'sg' of git://git.kernel.dk/linux-2.6-block ... Browse Code »

    * 'sg' of git://git.kernel.dk/linux-2.6-block:
    sparc64: zero out dma_length
    fvr32: fixup dma-mapping for new sg layout
    sh/sh64: fixup dma-mapping for new sg layout
    Fix sctp compile
    m68knommu: remove sg_address()
    frv: update comment in scatterlist to reflect new setup
    blackfin: remove sg_address()
    arm: sg fallout
    mips: sg_page() fallout
    alpha: sg_virt() fallout
    intel-iommu: fix sg_page()
    parisc: fix sg_page() fallout
    ide: build fix
    net: fix xfrm build - missing scatterlist.h include
    [BLOCK] blk_rq_map_sg: force clear termination bit
    [BLOCK] Don't clear sg_dma_len/addr() in blk_rq_map_sg()
    s390 zfcp: sg fixups
    powerpc: Fix fallout from sg_page() changes
    IB/ehca: Fix sg_page() fallout
    arm: build fix

    Linus Torvalds
     
  • f186c9ad1   m68knommu: local module/elf definitions ... Browse Code »

    Up to now m68knommu has been using the asm-m68k/module.h instead of
    defining its own. There are recent changes there that we don't need
    (fixups specifically). We don't need much support here so it makes
    sense to have an m68knommu specific one now.

    Signed-off-by: Greg Ungerer
    Signed-off-by: Linus Torvalds

    Greg Ungerer
     
  • fa2eae93a   m68knommu: define __clear_user macro ... Browse Code »

    Define __clear_user macro, consistent with other architectures.
    fs/signalfd.c won't compile without it.

    Signed-off-by: Greg Ungerer
    Signed-off-by: Linus Torvalds

    Matt Waddel
     
  • 75d35c93c   m68knommu: remove sg_address() ... Browse Code »

    I would have replaced it with sg_virt(), but it doesn't appear to be
    used at all.

    Signed-off-by: Jens Axboe

    Jens Axboe
     
  • d6ec08420   Add CONFIG_DEBUG_SG sg validation ... Browse Code »

    Add a Kconfig entry which will toggle some sanity checks on the sg
    entry and tables.

    Signed-off-by: Jens Axboe

    Jens Axboe
     
  • 18dabf473   Change table chaining layout ... Browse Code »

    Change the page member of the scatterlist structure to be an unsigned
    long, and encode more stuff in the lower bits:

    - Bits 0 and 1 zero: this is a normal sg entry. Next sg entry is located
    at sg + 1.
    - Bit 0 set: this is a chain entry, the next real entry is at ->page_link
    with the two low bits masked off.
    - Bit 1 set: this is the final entry in the sg entry. sg_next() will return
    NULL when passed such an entry.

    It's thus important that sg table users use the proper accessors to get
    and set the page member.

    Signed-off-by: Jens Axboe

    Jens Axboe
     

20 Oct, 2007

3 commits

19 Oct, 2007

1 commit

  • 26333576f   bitops: introduce lock ops ... Browse Code »

    Introduce test_and_set_bit_lock / clear_bit_unlock bitops with lock semantics.
    Convert all architectures to use the generic implementation.

    Signed-off-by: Nick Piggin
    Acked-By: David Howells
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Cc: Russell King
    Cc: Haavard Skinnemoen
    Cc: Bryan Wu
    Cc: Mikael Starvik
    Cc: David Howells
    Cc: Yoshinori Sato
    Cc: "Luck, Tony"
    Cc: Hirokazu Takata
    Cc: Geert Uytterhoeven
    Cc: Roman Zippel
    Cc: Greg Ungerer
    Cc: Ralf Baechle
    Cc: Kyle McMartin
    Cc: Matthew Wilcox
    Cc: Paul Mackerras
    Cc: Benjamin Herrenschmidt
    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: Andi Kleen
    Cc: Chris Zankel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nick Piggin
     

17 Oct, 2007

4 commits

  • 622a9edd9   Remove dma_cache_(wback|inv|wback_inv) functions ... Browse Code »

    dma_cache_(wback|inv|wback_inv) were the earliest attempt on a generalized
    cache managment API for I/O purposes. Originally it was basically the raw
    MIPS low level cache API exported to the entire world. The API has
    suffered from a lack of documentation, was not very widely used unlike it's
    more modern brothers and can easily be replaced by dma_cache_sync. So
    remove it rsp. turn the surviving bits back into an arch private API, as
    discussed on linux-arch.

    Signed-off-by: Ralf Baechle
    Acked-by: Paul Mundt
    Acked-by: Paul Mackerras
    Acked-by: David S. Miller
    Acked-by: Kyle McMartin
    Acked-by: Haavard Skinnemoen
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ralf Baechle
     
  • cba4fbbff   remove include/asm-*/ipc.h ... Browse Code »

    All asm/ipc.h files do only #include .

    This patch therefore removes all include/asm-*/ipc.h files and moves the
    contents of include/asm-generic/ipc.h to include/linux/ipc.h.

    Signed-off-by: Adrian Bunk
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     
  • 04fc8bbcf   kill DECLARE_MUTEX_LOCKED ... Browse Code »

    DECLARE_MUTEX_LOCKED was used for semaphores used as completions and we've
    got rid of them. Well, except for one in libusual that the maintainer
    explicitly wants to keep as semaphore. So convert that useage to an
    explicit sema_init and kill of DECLARE_MUTEX_LOCKED so that new code is
    reminded to use a completion.

    Signed-off-by: Christoph Hellwig
    Acked-by: "Satyam Sharma"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     
  • fabc7f66e   M68KNOMMU: remove unused config symbol CONFIG_DISKtel ... Browse Code »

    Remove unused config symbol CONFIG_DISKtel.
    Pointed out by Robert P. J. Day .

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

    Greg Ungerer
     

03 Oct, 2007

1 commit

  • f9720205d   Binfmt_flat: Add minimum support for the Blackfin relocations ... Browse Code »

    Add minimum support for the Blackfin relocations, since we don't have
    enough space in each reloc. The idea is to store a value with one
    relocation so that subsequent ones can access it.

    Actually, this patch is required for Blackfin. Currently if BINFMT_FLAT is
    enabled, git-tree kernel will fail to compile.

    Signed-off-by: Bernd Schmidt
    Signed-off-by: Bryan Wu
    Cc: David McCullough
    Cc: Greg Ungerer
    Cc: Miles Bader
    Signed-off-by: Andrew Morton

    Bernd Schmidt
     

12 Sep, 2007

1 commit

24 Aug, 2007

1 commit

01 Aug, 2007

1 commit

  • a583f1b54   remove unused TIF_NOTIFY_RESUME flag ... Browse Code »

    Remove unused TIF_NOTIFY_RESUME flag for all processor architectures. The
    flag was not used excecpt on IA-64 where the patch replaces it with
    TIF_PERFMON_WORK.

    Signed-off-by: stephane eranian
    Cc:
    Cc: "Luck, Tony"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Stephane Eranian
     

29 Jul, 2007

2 commits

27 Jul, 2007

1 commit