linux.git/arch/powerpc/platforms/pseries/eeh_cache.c, branch v3.2

atomic: use

2011-07-26T23:49:47+00:00

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

powerpc/pseries/eeh: Use for_each_pci_dev()

2010-07-09T01:28:25+00:00

Use for_each_pci_dev() to simplify the code.

Signed-off-by: Kulikov Vasiliy 
Signed-off-by: Benjamin Herrenschmidt

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32+00:00

percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo 
Guess-its-ok-by: Christoph Lameter 
Cc: Ingo Molnar 
Cc: Lee Schermerhorn

[POWERPC] Add CONFIG_PPC_PSERIES_DEBUG to enable debugging for platforms/pseries

2008-04-24T11:08:12+00:00

Add a DEBUG config setting which turns on all (most) of the debugging
under platforms/pseries.

To have this take effect we need to remove all the #undef DEBUG's, in
various files. We leave the #undef DEBUG in platforms/pseries/lpar.c,
as this enables debugging printks from the low-level hash table routines,
and tends to make your system unusable. If you want those enabled you
still have to turn them on by hand.

Also some of the RAS code has a DEBUG block which causes a functional
change, so I've keyed this off a different (non-existant) debug #define.

This is only enabled if you have PPC_EARLY_DEBUG enabled also.

Signed-off-by: Michael Ellerman 
Signed-off-by: Paul Mackerras

[POWERPC] EEH: Fix PCI bridge handling bug

2007-08-17T01:01:50+00:00

The EEH code needs to ignore PCI bridges; sort-of.  It was ignoring
them in the wrong place, and thus failing to set up the
PCI_DN(dn)->pcidev pointer.  Imprudent dereferencing of this pointer
would lead to a crash on cards with bridges.

Signed-off-by: Linas Vepstas 

----
 arch/powerpc/platforms/pseries/eeh_cache.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
Signed-off-by: Paul Mackerras

[POWERPC] Tweak EEH copyright info

2007-06-14T12:29:56+00:00

Twiddle the copyright notices. Per current guidelines, the use
of the (C) or (c) in source code is deprecated.

Signed-off-by: Linas Vepstas 

----
 arch/powerpc/platforms/pseries/eeh.c        |    6 +++++-
 arch/powerpc/platforms/pseries/eeh_cache.c  |    3 ++-
 arch/powerpc/platforms/pseries/eeh_driver.c |    6 +++---
 3 files changed, 10 insertions(+), 5 deletions(-)
Signed-off-by: Paul Mackerras

[POWERPC] Add EEH sysfs blinkenlights

2007-06-14T12:29:55+00:00

Add sysfs blinkenlights for EEH statistics.  Shuffle the
eeh_add_device_tree() call so that it appears in the correct
sequence.

Signed-off-by: Linas Vepstas 

----
 arch/powerpc/platforms/pseries/Makefile    |    2
 arch/powerpc/platforms/pseries/eeh.c       |    4 +
 arch/powerpc/platforms/pseries/eeh_cache.c |    2
 arch/powerpc/platforms/pseries/eeh_sysfs.c |   84 +++++++++++++++++++++++++++++
 arch/powerpc/platforms/pseries/pci_dlpar.c |    7 +-
 include/asm-powerpc/ppc-pci.h              |    3 +
 6 files changed, 98 insertions(+), 4 deletions(-)
Signed-off-by: Paul Mackerras

[PATCH] getting rid of all casts of k[cmz]alloc() calls

2006-12-13T17:05:58+00:00

Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King , Ian Molton 
Cc: Mikael Starvik 
Cc: Yoshinori Sato 
Cc: Roman Zippel 
Cc: Geert Uytterhoeven 
Cc: Ralf Baechle 
Cc: Paul Mackerras 
Cc: Kyle McMartin 
Cc: Benjamin Herrenschmidt 
Cc: Martin Schwidefsky 
Cc: "David S. Miller" 
Cc: Jeff Dike 
Cc: Greg KH 
Cc: Jens Axboe 
Cc: Paul Fulghum 
Cc: Alan Cox 
Cc: Karsten Keil 
Cc: Mauro Carvalho Chehab 
Cc: Jeff Garzik 
Cc: James Bottomley 
Cc: Ian Kent 
Cc: Steven French 
Cc: David Woodhouse 
Cc: Neil Brown 
Cc: Jaroslav Kysela 
Cc: Takashi Iwai 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[POWERPC] EEH: balance pcidev_get/put calls

2006-09-21T12:59:08+00:00

This corrects a pci_dev get/put imbalance that can occur only in
highly unlikely situations (kmalloc failures, pci devices with
overlapping resource addresses).  No actual failures seen, this was
spotted during code review.

Signed-off-by: Linas Vepstas 
Signed-off-by: Paul Mackerras

spelling fixes

2006-06-26T16:35:02+00:00

acquired (aquired)
contiguous (contigious)
successful (succesful, succesfull)
surprise (suprise)
whether (weather)
some other misspellings

Signed-off-by: Andreas Mohr 
Signed-off-by: Adrian Bunk