Eric Lee / smarc-fsl-linux-kernel

20 Oct, 2007

10 commits

  • b460cbc58   pid namespaces: define is_global_init() and is_container_init() ... Browse Code »

    is_init() is an ambiguous name for the pid==1 check. Split it into
    is_global_init() and is_container_init().

    A cgroup init has it's tsk->pid == 1.

    A global init also has it's tsk->pid == 1 and it's active pid namespace
    is the init_pid_ns. But rather than check the active pid namespace,
    compare the task structure with 'init_pid_ns.child_reaper', which is
    initialized during boot to the /sbin/init process and never changes.

    Changelog:

    2.6.22-rc4-mm2-pidns1:
    - Use 'init_pid_ns.child_reaper' to determine if a given task is the
    global init (/sbin/init) process. This would improve performance
    and remove dependence on the task_pid().

    2.6.21-mm2-pidns2:

    - [Sukadev Bhattiprolu] Changed is_container_init() calls in {powerpc,
    ppc,avr32}/traps.c for the _exception() call to is_global_init().
    This way, we kill only the cgroup if the cgroup's init has a
    bug rather than force a kernel panic.

    [akpm@linux-foundation.org: fix comment]
    [sukadev@us.ibm.com: Use is_global_init() in arch/m32r/mm/fault.c]
    [bunk@stusta.de: kernel/pid.c: remove unused exports]
    [sukadev@us.ibm.com: Fix capability.c to work with threaded init]
    Signed-off-by: Serge E. Hallyn
    Signed-off-by: Sukadev Bhattiprolu
    Acked-by: Pavel Emelianov
    Cc: Eric W. Biederman
    Cc: Cedric Le Goater
    Cc: Dave Hansen
    Cc: Herbert Poetzel
    Cc: Kirill Korotaev
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Serge E. Hallyn
     
  • a47afb0f9   pid namespaces: round up the API ... Browse Code »

    The set of functions process_session, task_session, process_group and
    task_pgrp is confusing, as the names can be mixed with each other when looking
    at the code for a long time.

    The proposals are to
    * equip the functions that return the integer with _nr suffix to
    represent that fact,
    * and to make all functions work with task (not process) by making
    the common prefix of the same name.

    For monotony the routines signal_session() and set_signal_session() are
    replaced with task_session_nr() and set_task_session(), especially since they
    are only used with the explicit task->signal dereference.

    Signed-off-by: Pavel Emelianov
    Acked-by: Serge E. Hallyn
    Cc: Kirill Korotaev
    Cc: "Eric W. Biederman"
    Cc: Cedric Le Goater
    Cc: Herbert Poetzl
    Cc: Sukadev Bhattiprolu
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Pavel Emelianov
     
  • 345225c8e   isdn/sc: remove unused REQUEST_IRQ and unnecessary header file ... Browse Code »

    REQUEST_IRQ is never used, so delete it. In the process get rid of the
    macro FREE_IRQ which makes the code unnecessarily difficult to read.

    Signed-off-by: Fernando Luis Vázquez Cao
    Acked-by: Karsten Keil
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Fernando Luis Vázquez Cao
     
  • feea6d4d1   isdn: fix random hard freeze with AVM T1 cards ... Browse Code »

    This fixes the hard freeze debugged for AVM C4 cards for the AVM T1 cards.

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

    Karsten Keil
     
  • 1e9c78137   isdn: fix random hard freeze with AVM cards using b1dma ... Browse Code »

    This fixes the hard freeze debugded for AVM C4 cards using the b1dma
    interface.

    [akpm@linux-foundation.org: coding-style fixes]
    Signed-off-by: Karsten Keil
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Karsten Keil
     
  • eac141deb   isdn: fix random hard freeze with AVM c4 card part 2 ... Browse Code »

    One call was missing in the previous patch.

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

    Karsten Keil
     
  • b293d7584   Console events and accessibility ... Browse Code »

    Some external modules like Speakup need to monitor console output.

    This adds a VT notifier that such modules can use to get console output events:
    allocation, deallocation, writes, other updates (cursor position, switch, etc.)

    [akpm@linux-foundation.org: fix headers_check]
    Signed-off-by: Samuel Thibault
    Cc: Dmitry Torokhov
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Samuel Thibault
     
  • 3305a6bc2   ps3av: remove unused fields in ps3av_monitor_quirks ... Browse Code »

    Remove the `clear_50' and `clear_vesa' fields of struct
    ps3av_monitor_quirk, as they're currently unused. We can always re-add
    them when we really need them.

    Signed-off-by: Geert Uytterhoeven
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Geert Uytterhoeven
     
  • 41ab4396e   Console keyboard events and accessibility ... Browse Code »

    Some blind people use a kernel engine called Speakup which uses hardware
    synthesis to speak what gets displayed on the screen. They use the
    PC keyboard to control this engine (start/stop, accelerate, ...) and
    also need to get keyboard feedback (to make sure to know what they are
    typing, the caps lock status, etc.)

    Up to now, the way it was done was very ugly. Below is a patch to add a
    notifier list for permitting a far better implementation, see ChangeLog
    above for details.

    You may wonder why this can't be done at the input layer. The problem
    is that what people want to monitor is the console keyboard, i.e. all
    input keyboards that got attached to the console, and with the currently
    active keymap (i.e. keysyms, not only keycodes).

    This adds a keyboard notifier that such modules can use to get the keyboard
    events and possibly eat them, at several stages:

    - keycodes: even before translation into keysym.
    - unbound keycodes: when no keysym is bound.
    - unicode: when the keycode would get translated into a unicode character.
    - keysym: when the keycode would get translated into a keysym.
    - post_keysym: after the keysym got interpreted, so as to see the result
    (caps lock, etc.)

    This also provides access to k_handler so as to permit simulation of
    keypresses.

    [akpm@linux-foundation.org: various fixes]
    Signed-off-by: Samuel Thibault
    Cc: Jiri Kosina
    Cc: Dmitry Torokhov
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Samuel Thibault
     
  • 50899561a   advansys: depends on VIRT_TO_BUS ... Browse Code »

    Fix powerpc allmodconfig build: advansys requires virt_to_bus() but powerpc
    doesn't implement it.

    Cc: James Bottomley
    Cc: Paul Mackerras
    Acked-by: Matthew Wilcox
    Cc: "David S. Miller"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

19 Oct, 2007

30 commits