linux-stable.git/arch/mips/kernel, branch linux-2.6.27.y

MIPS: CVE-2009-0029: Enable syscall wrappers

2009-05-08T21:54:35+00:00

Backport of upstream commits by:
  Ralf Baechle 
  Xiaotian Feng 

upstream commits:
  dbda6ac0897603f6c6dfadbbc37f9882177ec7ac
  d6c178e9694e7e0c7ffe0289cf4389a498cac735
  c189846ecf900cd6b3ad7d3cef5b45a746ce646b

Signed-off-by: dann frazier 
Signed-off-by: Greg Kroah-Hartman

Rename old_readdir to sys_old_readdir

2009-01-18T18:35:31+00:00

commit e55380edf68796d75bf41391a781c68ee678587d upstream.

This way it matches the generic system call name convention.

Signed-off-by: Heiko Carstens 
Signed-off-by: Greg Kroah-Hartman

[MIPS] IP27: Fix build errors if CONFIG_MAPPED_KERNEL=y

2008-10-06T00:22:29+00:00

Signed-off-by: Ralf Baechle

[MIPS] SMTC: Fix SMTC dyntick support.

2008-10-03T16:58:58+00:00

Rework of SMTC support to make it work with the new clock event system,
allowing "tickless" operation, and to make it compatible with the use of
the "wait_irqoff" idle loop.  The new clocking scheme means that the
previously optional IPI instant replay mechanism is now required, and has
been made more robust.

Signed-off-by: Kevin D. Kissell 
Signed-off-by: Ralf Baechle

[MIPS] SMTC: Close tiny holes in the SMTC IPI replay system.

2008-10-03T16:58:58+00:00

Signed-off-by: Kevin D. Kissell 
Signed-off-by: Ralf Baechle

[MIPS] SMTC: Fix holes in SMTC and FPU affinity support.

2008-10-03T16:58:58+00:00

Signed-off-by: Kevin D. Kissell 
Signed-off-by: Ralf Baechle

[MIPS] Build fix: Fix irq flags type

2008-10-03T16:58:56+00:00

Though from a hardware perspective it would be sensible to use only a
32-bit unsigned int type Linux defines interrupt flags to be stored in
an unsigned long and nothing else.

Signed-off-by: Ralf Baechle

kgdb, x86, arm, mips, powerpc: ignore user space single stepping

2008-09-26T15:36:41+00:00

On the x86 arch, user space single step exceptions should be ignored
if they occur in the kernel space, such as ptrace stepping through a
system call.

First check if it is kgdb that is executing a single step, then ensure
it is not an accidental traversal into the user space, while in kgdb,
any other time the TIF_SINGLESTEP is set, kgdb should ignore the
exception.

On x86, arm, mips and powerpc, the kgdb_contthread usage was
inconsistent with the way single stepping is implemented in the kgdb
core.  The arch specific stub should always set the
kgdb_cpu_doing_single_step correctly if it is single stepping.  This
allows kgdb to correctly process an instruction steps if ptrace
happens to be requesting an instruction step over a system call.

Signed-off-by: Jason Wessel

[MIPS] vmlinux.lds.S: handle .text.*

2008-09-21T12:52:58+00:00

The -ffunction-sections puts each text in .text.function_name section.
Without this patch, most functions are placed outside _text..._etext
area and it breaks show_stacktrace(), etc.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

[MIPS] Fix potential latency problem due to non-atomic cpu_wait.

2008-09-21T12:52:57+00:00

If an interrupt happened between checking of NEED_RESCHED and WAIT
instruction, adjust EPC to restart from checking of NEED_RESCHED.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle