Eric Lee / smarc-fsl-linux-kernel

01 Nov, 2011

1 commit

28 Sep, 2011

1 commit

  • 395cf9691   doc: fix broken references ... Browse Code »

    There are numerous broken references to Documentation files (in other
    Documentation files, in comments, etc.). These broken references are
    caused by typo's in the references, and by renames or removals of the
    Documentation files. Some broken references are simply odd.

    Fix these broken references, sometimes by dropping the irrelevant text
    they were part of.

    Signed-off-by: Paul Bolle
    Signed-off-by: Jiri Kosina

    Paul Bolle
     

27 Aug, 2011

1 commit

27 Jul, 2011

1 commit

  • 60063497a   atomic: use <linux/atomic.h> ... Browse Code »

    This allows us to move duplicated code in
    (atomic_inc_not_zero() for now) to

    Signed-off-by: Arun Sharma
    Reviewed-by: Eric Dumazet
    Cc: Ingo Molnar
    Cc: David Miller
    Cc: Eric Dumazet
    Acked-by: Mike Frysinger
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arun Sharma
     

24 Jul, 2011

1 commit

  • 66574cc05   modules: make arch's use default loader hooks ... Browse Code »

    This patch removes all the module loader hook implementations in the
    architecture specific code where the functionality is the same as that
    now provided by the recently added default hooks.

    Signed-off-by: Jonas Bonn
    Acked-by: Mike Frysinger
    Acked-by: Geert Uytterhoeven
    Tested-by: Michal Simek
    Signed-off-by: Rusty Russell

    Jonas Bonn
     

08 Jun, 2011

2 commits

  • 40182373a   MN10300: Add missing _sdata declaration ... Browse Code »

    _sdata needs to be declared in the linker script now as of commit
    a2d063ac216c ("extable, core_kernel_data(): Make sure all archs define
    _sdata")

    Signed-off-by: David Howells
    Cc: Steven Rostedt
    Signed-off-by: Linus Torvalds

    David Howells
     
  • db1c9dfa6   MN10300: die_if_no_fixup() shouldn't use get_user() as it doesn't call set_fs() ... Browse Code »

    die_if_no_fixup() shouldn't use get_user() as it doesn't call set_fs() to
    indicate that it wants to probe a kernel address. Instead it should use
    probe_kernel_read().

    This fixes the problem of gdb seeing SIGILL rather than SIGTRAP when hitting
    the KGDB special breakpoint upon SysRq+g being seen. The problem was that
    die_if_no_fixup() was failing to read the opcode of the instruction that caused
    the exception, and thus not fixing up the exception.

    This caused gdb to get a S04 response to the $? request in its remote protocol
    rather than S05 - which would then cause it to continue with $C04 rather than
    $c in an attempt to pass the signal onto the inferior process. The kernel,
    however, does not support $Cnn, and so objects by returning an E22 response,
    indicating an error. gdb does not expect this and prints:

    warning: Remote failure reply: E22

    and then returns to the gdb command prompt unable to continue.

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

    David Howells
     

29 May, 2011

1 commit

  • 7b21fddd0   ns: Wire up the setns system call ... Browse Code »

    32bit and 64bit on x86 are tested and working. The rest I have looked
    at closely and I can't find any problems.

    setns is an easy system call to wire up. It just takes two ints so I
    don't expect any weird architecture porting problems.

    While doing this I have noticed that we have some architectures that are
    very slow to get new system calls. cris seems to be the slowest where
    the last system calls wired up were preadv and pwritev. avr32 is weird
    in that recvmmsg was wired up but never declared in unistd.h. frv is
    behind with perf_event_open being the last syscall wired up. On h8300
    the last system call wired up was epoll_wait. On m32r the last system
    call wired up was fallocate. mn10300 has recvmmsg as the last system
    call wired up. The rest seem to at least have syncfs wired up which was
    new in the 2.6.39.

    v2: Most of the architecture support added by Daniel Lezcano
    v3: ported to v2.6.36-rc4 by: Eric W. Biederman
    v4: Moved wiring up of the system call to another patch
    v5: ported to v2.6.39-rc6
    v6: rebased onto parisc-next and net-next to avoid syscall conflicts.
    v7: ported to Linus's latest post 2.6.39 tree.

    >  arch/blackfin/include/asm/unistd.h     |    3 ++-
    >  arch/blackfin/mach-common/entry.S      |    1 +
    Acked-by: Mike Frysinger

    Oh - ia64 wiring looks good.
    Acked-by: Tony Luck

    Signed-off-by: Eric W. Biederman
    Signed-off-by: Linus Torvalds

    Eric W. Biederman
     

25 May, 2011

2 commits

14 Apr, 2011

1 commit

  • 184748cc5   sched: Provide scheduler_ipi() callback in response to smp_send_reschedule() ... Browse Code »

    For future rework of try_to_wake_up() we'd like to push part of that
    function onto the CPU the task is actually going to run on.

    In order to do so we need a generic callback from the existing scheduler IPI.

    This patch introduces such a generic callback: scheduler_ipi() and
    implements it as a NOP.

    BenH notes: PowerPC might use this IPI on offline CPUs under rare conditions!

    Acked-by: Russell King
    Acked-by: Martin Schwidefsky
    Acked-by: Chris Metcalf
    Acked-by: Jesper Nilsson
    Acked-by: Benjamin Herrenschmidt
    Signed-off-by: Ralf Baechle
    Reviewed-by: Frank Rowand
    Cc: Mike Galbraith
    Cc: Nick Piggin
    Cc: Linus Torvalds
    Cc: Andrew Morton
    Signed-off-by: Ingo Molnar
    Signed-off-by: Peter Zijlstra
    Link: http://lkml.kernel.org/r/20110405152728.744338123@chello.nl

    Peter Zijlstra
     

29 Mar, 2011

3 commits

25 Mar, 2011

1 commit

  • 0415b00d1   percpu: Always align percpu output section to PAGE_SIZE ... Browse Code »

    Percpu allocator honors alignment request upto PAGE_SIZE and both the
    percpu addresses in the percpu address space and the translated kernel
    addresses should be aligned accordingly. The calculation of the
    former depends on the alignment of percpu output section in the kernel
    image.

    The linker script macros PERCPU_VADDR() and PERCPU() are used to
    define this output section and the latter takes @align parameter.
    Several architectures are using @align smaller than PAGE_SIZE breaking
    percpu memory alignment.

    This patch removes @align parameter from PERCPU(), renames it to
    PERCPU_SECTION() and makes it always align to PAGE_SIZE. While at it,
    add PCPU_SETUP_BUG_ON() checks such that alignment problems are
    reliably detected and remove percpu alignment comment recently added
    in workqueue.c as the condition would trigger BUG way before reaching
    there.

    For um, this patch raises the alignment of percpu area. As the area
    is in .init, there shouldn't be any noticeable difference.

    This problem was discovered by David Howells while debugging boot
    failure on mn10300.

    Signed-off-by: Tejun Heo
    Acked-by: Mike Frysinger
    Cc: uclinux-dist-devel@blackfin.uclinux.org
    Cc: David Howells
    Cc: Jeff Dike
    Cc: user-mode-linux-devel@lists.sourceforge.net

    Tejun Heo
     

19 Mar, 2011

16 commits

16 Mar, 2011

1 commit

  • 79d8a8f73   Merge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu ... Browse Code »

    * 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
    percpu, x86: Add arch-specific this_cpu_cmpxchg_double() support
    percpu: Generic support for this_cpu_cmpxchg_double()
    alpha: use L1_CACHE_BYTES for cacheline size in the linker script
    percpu: align percpu readmostly subsection to cacheline

    Fix up trivial conflict in arch/x86/kernel/vmlinux.lds.S due to the
    percpu alignment having changed ("x86: Reduce back the alignment of the
    per-CPU data section")

    Linus Torvalds
     

09 Feb, 2011

1 commit

  • 22b7fcdae   mn10300: Switch do_timer() to xtimer_update() ... Browse Code »

    Only one CPU gets the timer interrupt so mn10300_last_tsc does not
    need to be protected by xtime lock. Remove xtime lovking and use
    xtime_update() which does the locking itself.

    Signed-off-by: Torben Hohn
    Cc: David Howells
    Cc: Koichi Yasutake
    LKML-Reference:
    Signed-off-by: Thomas Gleixner

    Torben Hohn
     

25 Jan, 2011

1 commit

  • 19df0c2fe   percpu: align percpu readmostly subsection to cacheline ... Browse Code »

    Currently percpu readmostly subsection may share cachelines with other
    percpu subsections which may result in unnecessary cacheline bounce
    and performance degradation.

    This patch adds @cacheline parameter to PERCPU() and PERCPU_VADDR()
    linker macros, makes each arch linker scripts specify its cacheline
    size and use it to align percpu subsections.

    This is based on Shaohua's x86 only patch.

    Signed-off-by: Tejun Heo
    Cc: Shaohua Li

    Tejun Heo
     

14 Jan, 2011

1 commit

  • 3e5c12409   set_rtc_mmss: show warning message only once ... Browse Code »

    Occasionally the system gets into a state where the CMOS clock has gotten
    slightly ahead of current time and the periodic update of RTC fails. The
    message is a nuisance and repeats spamming the log.

    See: http://www.ntp.org/ntpfaq/NTP-s-trbl-spec.htm#Q-LINUX-SET-RTC-MMSS

    Rather than just removing the message, make it show only once and reduce
    severity since it indicates a normal and non urgent condition.

    Signed-off-by: Stephen Hemminger
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Cc: Matt Turner
    Cc: Ralf Baechle
    Cc: David Howells
    Cc: Paul Mundt
    Cc: Ingo Molnar
    Cc: "H. Peter Anvin"
    Cc: Thomas Gleixner
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Stephen Hemminger
     

04 Jan, 2011

1 commit

21 Dec, 2010

1 commit

  • b8da46d3d   clarify a usage constraint for cnt32_to_63() ... Browse Code »

    The cnt32_to_63 algorithm relies on proper counter data evaluation
    ordering to work properly. This was missing from the provided
    documentation.

    Let's augment the documentation with the missing usage constraint and
    fix the only instance that got it wrong.

    Signed-off-by: Nicolas Pitre
    Acked-by: David Howells
    Signed-off-by: Linus Torvalds

    Nicolas Pitre
     

08 Dec, 2010

1 commit

18 Nov, 2010

1 commit

28 Oct, 2010

1 commit

  • bdab22501   Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300: (44 commits)
    MN10300: Save frame pointer in thread_info struct rather than global var
    MN10300: Change "Matsushita" to "Panasonic".
    MN10300: Create a defconfig for the ASB2364 board
    MN10300: Update the ASB2303 defconfig
    MN10300: ASB2364: Add support for SMSC911X and SMC911X
    MN10300: ASB2364: Handle the IRQ multiplexer in the FPGA
    MN10300: Generic time support
    MN10300: Specify an ELF HWCAP flag for MN10300 Atomic Operations Unit support
    MN10300: Map userspace atomic op regs as a vmalloc page
    MN10300: And Panasonic AM34 subarch and implement SMP
    MN10300: Delete idle_timestamp from irq_cpustat_t
    MN10300: Make various interrupt priority settings configurable
    MN10300: Optimise do_csum()
    MN10300: Implement atomic ops using atomic ops unit
    MN10300: Make the FPU operate in non-lazy mode under SMP
    MN10300: SMP TLB flushing
    MN10300: Use the [ID]PTEL2 registers rather than [ID]PTEL for TLB control
    MN10300: Make the use of PIDR to mark TLB entries controllable
    MN10300: Rename __flush_tlb*() to local_flush_tlb*()
    MN10300: AM34 erratum requires MMUCTR read and write on exception entry
    ...

    Linus Torvalds