Eric Lee / smarc-ti-linux-kernel

26 Mar, 2006

1 commit

  • 8d3b33f67   [PATCH] Remove MODULE_PARM ... Browse Code »

    MODULE_PARM was actually breaking: recent gcc version optimize them out as
    unused. It's time to replace the last users, which are generally in the
    most unloved drivers anyway.

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

    Rusty Russell
     

24 Mar, 2006

1 commit

08 Feb, 2006

1 commit

  • 99f6d61bd   [PATCH] selinux: require AUDIT ... Browse Code »

    Make SELinux depend on AUDIT as it requires the basic audit support to log
    permission denials at all. Note that AUDITSYSCALL remains optional for
    SELinux, although it can be useful in providing further information upon
    denials.

    Signed-off-by: Stephen Smalley
    Acked-by: James Morris
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Stephen Smalley
     

04 Feb, 2006

1 commit

  • 3636641bb   [PATCH] don't allow users to set CONFIG_BROKEN=y ... Browse Code »

    Do not allow people to create configurations with CONFIG_BROKEN=y.

    The sole reason for CONFIG_BROKEN=y would be if you are working on fixing a
    broken driver, but in this case editing the Kconfig file is trivial.

    Never ever should a user enable CONFIG_BROKEN.

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

    Adrian Bunk
     

17 Jan, 2006

1 commit

15 Jan, 2006

1 commit

12 Jan, 2006

1 commit

11 Jan, 2006

1 commit

  • 2308acca6   [PATCH] "tiny-make-id16-support-optional" fixes ... Browse Code »

    It seems the "make UID16 support optional" patch was checked when it
    edited the -tiny tree some time ago, but it wasn't checked whether it
    still matches the current situation when it was submitted for inclusion
    in -mm. This patch fixes the following bugs:
    - ARCH_S390X does no longer exist, nowadays this has to be expressed
    through (S390 && 64BIT)
    - in five architecture specific Kconfig files the UID16 options
    weren't removed

    Additionally, it changes the fragile negative dependencies of UID16 to
    positive dependencies (new architectures are more likely to not require
    UID16 support).

    Signed-off-by: Adrian Bunk
    Acked-by: Matt Mackall
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

09 Jan, 2006

5 commits

  • 64ca9004b   [PATCH] Make vm86 support optional ... Browse Code »

    This adds an option to remove vm86 support under CONFIG_EMBEDDED. Saves
    about 5k.

    This version eliminates most of the #ifdefs of the previous version and
    instead uses function stubs in vm86.h. Also, release_vm86_irqs is moved
    from asm-i386/irq.h to a more appropriate home in vm86.h so that the stubs
    can live together.

    $ size vmlinux-baseline vmlinux-novm86
    text data bss dec hex filename
    2920821 523232 190652 3634705 377611 vmlinux-baseline
    2916268 523100 190492 3629860 376324 vmlinux-novm86

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

    Matt Mackall
     
  • 708e9a794   [PATCH] tiny: Configure ELF core dump support ... Browse Code »

    configurable support for ELF core dumps

    text data bss dec hex filename
    3330172 529036 190556 4049764 3dcb64 vmlinux-baseline
    3325552 528912 190556 4045020 3db8dc vmlinux-no-elf

    add/remove: 0/8 grow/shrink: 0/0 up/down: 0/-4424 (-4424)
    function old new delta
    fill_note 32 - -32
    maydump 58 - -58
    dump_seek 67 - -67
    writenote 180 - -180
    elf_dump_thread_status 274 - -274
    fill_psinfo 308 - -308
    fill_prstatus 466 - -466
    elf_core_dump 3039 - -3039

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

    Matt Mackall
     
  • e585e4703   [PATCH] tiny: Make *[ug]id16 support optional ... Browse Code »

    Configurable 16-bit UID and friends support

    This allows turning off the legacy 16 bit UID interfaces on embedded platforms.

    text data bss dec hex filename
    3330172 529036 190556 4049764 3dcb64 vmlinux-baseline
    3328268 529040 190556 4047864 3dc3f8 vmlinux

    From: Adrian Bunk

    UID16 was accidentially disabled for !EMBEDDED.

    Signed-off-by: Matt Mackall
    Signed-off-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Mackall
     
  • 22c4e3084   [PATCH] tiny: Make x86 doublefault handling optional ... Browse Code »

    This adds configurable support for doublefault reporting on x86

    add/remove: 0/3 grow/shrink: 0/1 up/down: 0/-13048 (-13048)
    function old new delta
    cpu_init 846 786 -60
    doublefault_fn 188 - -188
    doublefault_stack 4096 - -4096
    doublefault_tss 8704 - -8704

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

    Matt Mackall
     
  • 10cef6029   [PATCH] slob: introduce the SLOB allocator ... Browse Code »

    configurable replacement for slab allocator

    This adds a CONFIG_SLAB option under CONFIG_EMBEDDED. When CONFIG_SLAB is
    disabled, the kernel falls back to using the 'SLOB' allocator.

    SLOB is a traditional K&R/UNIX allocator with a SLAB emulation layer,
    similar to the original Linux kmalloc allocator that SLAB replaced. It's
    signicantly smaller code and is more memory efficient. But like all
    similar allocators, it scales poorly and suffers from fragmentation more
    than SLAB, so it's only appropriate for small systems.

    It's been tested extensively in the Linux-tiny tree. I've also
    stress-tested it with make -j 8 compiles on a 3G SMP+PREEMPT box (not
    recommended).

    Here's a comparison for otherwise identical builds, showing SLOB saving
    nearly half a megabyte of RAM:

    $ size vmlinux*
    text data bss dec hex filename
    3336372 529360 190812 4056544 3de5e0 vmlinux-slab
    3323208 527948 190684 4041840 3dac70 vmlinux-slob

    $ size mm/{slab,slob}.o
    text data bss dec hex filename
    13221 752 48 14021 36c5 mm/slab.o
    1896 52 8 1956 7a4 mm/slob.o

    /proc/meminfo:
    SLAB SLOB delta
    MemTotal: 27964 kB 27980 kB +16 kB
    MemFree: 24596 kB 25092 kB +496 kB
    Buffers: 36 kB 36 kB 0 kB
    Cached: 1188 kB 1188 kB 0 kB
    SwapCached: 0 kB 0 kB 0 kB
    Active: 608 kB 600 kB -8 kB
    Inactive: 808 kB 812 kB +4 kB
    HighTotal: 0 kB 0 kB 0 kB
    HighFree: 0 kB 0 kB 0 kB
    LowTotal: 27964 kB 27980 kB +16 kB
    LowFree: 24596 kB 25092 kB +496 kB
    SwapTotal: 0 kB 0 kB 0 kB
    SwapFree: 0 kB 0 kB 0 kB
    Dirty: 4 kB 12 kB +8 kB
    Writeback: 0 kB 0 kB 0 kB
    Mapped: 560 kB 556 kB -4 kB
    Slab: 1756 kB 0 kB -1756 kB
    CommitLimit: 13980 kB 13988 kB +8 kB
    Committed_AS: 4208 kB 4208 kB 0 kB
    PageTables: 28 kB 28 kB 0 kB
    VmallocTotal: 1007312 kB 1007312 kB 0 kB
    VmallocUsed: 48 kB 48 kB 0 kB
    VmallocChunk: 1007264 kB 1007264 kB 0 kB

    (this work has been sponsored in part by CELF)

    From: Ingo Molnar

    Fix 32-bitness bugs in mm/slob.c.

    Signed-off-by: Matt Mackall
    Signed-off-by: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Mackall
     

07 Jan, 2006

2 commits

  • 347a8dc3b   [PATCH] s390: cleanup Kconfig ... Browse Code »

    Sanitize some s390 Kconfig options. We have ARCH_S390, ARCH_S390X,
    ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT. Replace these 6 options by
    S390, 64BIT and COMPAT.

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

    Martin Schwidefsky
     
  • b0e15190e   [PATCH] NOMMU: Make SYSV IPC SHM use ramfs facilities on NOMMU ... Browse Code »

    The attached patch makes the SYSV IPC shared memory facilities use the new
    ramfs facilities on a no-MMU kernel.

    The following changes are made:

    (1) There are now shmem_mmap() and shmem_get_unmapped_area() functions to
    allow the IPC SHM facilities to commune with the tiny-shmem and shmem
    code.

    (2) ramfs files now need resizing using do_truncate() rather than by modifying
    the inode size directly (see shmem_file_setup()). This causes ramfs to
    attempt to bind a block of pages of sufficient size to the inode.

    (3) CONFIG_SYSVIPC is no longer contingent on CONFIG_MMU.

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

    David Howells
     

05 Jan, 2006

4 commits

27 Dec, 2005

1 commit

21 Dec, 2005

1 commit

  • a9c9dff1b   [SPARC64]: Stop putting -finline-limit=XXX into CFLAGS ... Browse Code »

    It was a stupid workaround for the "static inline" vs.
    "extern inline" issues of long ago, and it is what causes
    schedule() to be inlined like crazy into kernel/sched.c
    when -Os is specified.

    MIPS and S390 should probably do the same.

    Now CC_OPTIMIZE_FOR_SIZE can be safely used on sparc64
    once more.

    Signed-off-by: David S. Miller

    David S. Miller
     

15 Dec, 2005

1 commit

  • c45b4f1f1   Move size optimization option outside of EMBEDDED menu, mark it EXPERIMENTAL ... Browse Code »

    Also, disable on sparc64 - a number of people report breakage. Probably
    a compiler bug, but it's quite possible that it tickles some latent
    kernel problem too.

    It still defaults to 'y' everywhere else (when enabled through
    EXPERIMENTAL), and Dave Jones points out that Fedora (and RHEL4) has
    been building with size optimizations for a long time on x86, x86-64,
    ia64, s390, s390x, ppc32 and ppc64. So it is really only moderately
    experimental, but the sparc64 breakage certainly shows that it can
    trigger "issues".

    Signed-off-by: Linus Torvalds

    Linus Torvalds
     

14 Dec, 2005

2 commits

  • 0910b444b   Expose "Optimize for size" option for everybody ... Browse Code »

    Let's put my money where my mouth is. Smaller code is almost always
    faster, if only because a single I$ miss ends up leaving a lot of cycles
    to make up for. And system software - kernels in particular - are known
    for taking more cache misses than most other kinds.

    On my random config, this made the kernel about 10% smaller, and lmbench
    seems to say that it's pretty uniformly faster too. Your milage may vary.

    Signed-off-by: Linus Torvalds

    Linus Torvalds
     
  • 83bab9a4b   [PATCH] allow KOBJECT_UEVENT=n only if EMBEDDED ... Browse Code »

    KOBJECT_UEVENT=n seems to be a common pitfall for udev users in 2.6.14 .

    -mm already contains a bigger patch removing this option that is IMHO
    too big for being applied now to 2.6.15-rc.

    This patch simply allows KOBJECT_UEVENT=n only if EMBEDDED.

    Signed-off-by: Adrian Bunk
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

04 Nov, 2005

1 commit

31 Oct, 2005

1 commit

06 Sep, 2005

1 commit

11 Aug, 2005

2 commits

28 Jul, 2005

1 commit

26 Jul, 2005

1 commit

11 Jul, 2005

1 commit

02 Jun, 2005

1 commit

29 May, 2005

1 commit

11 May, 2005

1 commit

08 May, 2005

1 commit

03 May, 2005

2 commits

01 May, 2005

2 commits

  • d59745ce3   [PATCH] clean up kernel messages ... Browse Code »

    Arrange for all kernel printks to be no-ops. Only available if
    CONFIG_EMBEDDED.

    This patch saves about 375k on my laptop config and nearly 100k on minimal
    configs.

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

    Matt Mackall
     
  • c8538a7aa   [PATCH] remove all kernel BUGs ... Browse Code »

    This patch eliminates all kernel BUGs, trims about 35k off the typical
    kernel, and makes the system slightly faster.

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

    Matt Mackall