Eric Lee / smarc-fsl-linux-kernel

02 Nov, 2011

25 commits

15 Sep, 2011

2 commits

  • f71f94845   um: fix oopsable race in line_close() ... Browse Code »

    tty->count is decremented only after ->close() had been called and
    several tasks can hit it in parallel. As the result, using tty->count
    to check if you are the last one is broken. We end up leaving line->tty
    not reset to NULL and the next IRQ on that sucker will blow up trying to
    dereference pointers from kfree'd struct tty.

    Fix is obvious: we need to use a counter of our own.

    Signed-off-by: Al Viro
    Signed-off-by: Richard Weinberger
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Al Viro
     
  • fbfe9c847   um: Save FPU registers between task switches ... Browse Code »

    Some time ago Jeff prepared 42daba316557 ("uml: stop saving process FP
    state") for UML to stop saving the process FP state between task
    switches. The assumption was that since with SKAS0 every guest process
    runs inside a host process context the host OS will take care of keeping
    the proper FP state.

    Unfortunately this is not true for multi-threaded applications, where
    all guest threads share a single host process context yet all may use
    the FPU on their own. Although I haven't verified it I suspect things
    to be even worse in SKAS3 mode where all guest processes run inside a
    single host process.

    The patch reintroduces the saving and restoring of the FP context
    between task switches.

    [richard@nod.at: Ingo posted this patch in 2009, sadly it was never applied
    and got lost. Now in 2011 the problem was reported by Gunnar.]

    Signed-off-by: Ingo van Lil
    Signed-off-by: Richard Weinberger
    Reported-by:
    Tested-by:
    Cc: Stanislav Meduna
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo van Lil
     

25 May, 2011

2 commits

23 Mar, 2011

1 commit

  • 8a06dc4d5   um: remove file pointer from ioctl ... Browse Code »

    Commit 6caa76b ("tty: now phase out the ioctl file pointer for good")
    removed the ioctl file pointer. User Mode Linux's line driver uses this
    ioctl and needs a signature update too.

    Signed-off-by: Richard Weinberger
    Cc: Alan Cox
    Cc: Greg KH
    Cc: Jeff Dike
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Richard Weinberger
     

10 Aug, 2010

1 commit

21 Sep, 2009

1 commit

17 Jun, 2009

2 commits

  • ae52bb238   fbdev: move logo externs to header file ... Browse Code »

    Now we have __initconst, we can finally move the external declarations for
    the various Linux logo structures to .

    James' ack dates back to the previous submission (way to long ago), when the
    logos were still __initdata, which caused failures on some platforms with some
    toolchain versions.

    Signed-off-by: Geert Uytterhoeven
    Acked-by: James Simmons
    Cc: Krzysztof Helt
    Cc: Sam Ravnborg
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Geert Uytterhoeven
     
  • 7e1cb7804   uml: UML net driver does not allow for vlans ... Browse Code »

    See ancient discussion at
    http://marc.info/?l=user-mode-linux-devel&m=101990155831279&w=2

    Addresses http://bugzilla.kernel.org/show_bug.cgi?id=7854

    Signed-off-by: Alan Cox
    Reported-by: Paolo 'Blaisorblade' Giarrusso
    Cc: Jeff Dike
    Cc: Roland Kletzing
    Cc: "David S. Miller"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alan Cox
     

01 Apr, 2009

1 commit

27 Mar, 2009

1 commit

23 Oct, 2008

4 commits