litmus-rt.git/drivers/misc/sgi-gru, branch tracing-devel

sgi-gru: decrapfiy options_write() function

2009-11-05T18:48:30+00:00

Not a single line of actual code in the function was really
fundamentally correct.

Problems ranged from lack of proper range checking, to removing the last
character written (which admittedly is usually '\n'), to not accepting
hex numbers even though the 'show' routine would show the data in that
format.

This tries to do better.

Acked-by: Michael Buesch 
Tested-and-acked-by: Jack Steiner 
Cc: stable@kernel.org
Cc: Jiri Kosina 
Cc: Michael Gilbert 
Signed-off-by: Linus Torvalds

const: constify remaining file_operations

2009-10-01T23:11:11+00:00

[akpm@linux-foundation.org: fix KVM]
Signed-off-by: Alexey Dobriyan 
Acked-by: Mike Frysinger 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

const: mark struct vm_struct_operations

2009-09-27T18:39:25+00:00

* mark struct vm_area_struct::vm_ops as const
* mark vm_ops in AGP code

But leave TTM code alone, something is fishy there with global vm_ops
being used.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Linus Torvalds

gru: allocation may fail in quicktest1()

2009-09-24T14:21:05+00:00

The allocation may fail.

Signed-off-by: Roel Kluin 
Acked-by: Jack Steiner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

gru: use proc_create()

2009-09-24T14:21:05+00:00

Signed-off-by: Alexey Dobriyan 
Cc: Jack Steiner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

headers: smp_lock.h redux

2009-07-12T19:22:34+00:00

* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Linus Torvalds

gru: copyright fixes

2009-06-18T20:04:04+00:00

Fix the copyright statements in a couple of GRU files.  No functional
changes are being made.

Signed-off-by: Jack Steiner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

gru: remove references to the obsolete global status handle

2009-06-18T20:04:04+00:00

Delete references to the SGI GRU GSH hardware resources.  These GRU
resources have been deleted from the hardware.  (These resources have
never benn used, anyway).

Signed-off-by: Jack Steiner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

gru: fixes to grudump utility

2009-06-18T20:04:04+00:00

Minor fixes to the SGI GRU grudump facility:
	- fix address where user data is written
	- add gru number to data passed to user
	- indicate if context is locked

Signed-off-by: Jack Steiner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

gru: fix potential use-after-free when purging GRU tlbs

2009-06-18T20:04:04+00:00

Fix potential SGI GRU bug that could cause a use-after-free.  If one
thread in a task is flushing the GRU and another thread destroys the GRU
context, there is the potential to access a table after it has been freed.

Copy the gms pointer to a local variable before unlocking the gts table.
Note that no refcnt is needed for the gms - the reference is held
indirectly by the task's mm_struct.

Signed-off-by: Jack Steiner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds