Commit Graph

1193 Commits

Author SHA1 Message Date
Jiri Kosina
d790d4d583 Merge branch 'master' into for-next 2010-08-04 15:14:38 +02:00
Linus Torvalds
95977d0ef2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  math-emu: correct test for downshifting fraction in _FP_FROM_INT()
  perf: Add DWARF register lookup for sparc
  MAINTAINERS: Add SBUS driver path to sparc entry.
  drivers/sbus: Remove unnecessary casts of private_data
  sparc: remove homegrown L1_CACHE_ALIGN macro
  sparc64: fix the build error due to smp_kgdb_capture_client()
  sparc64: Fix maybe_change_configuration() PCR setting.
  arch/sparc/kernel: Eliminate what looks like a NULL pointer dereference
  sparc64: Update defconfig.
  sunsu: Fix use after free in su_remove().
  sunserial: Don't call add_preferred_console() when console= is specified.
  sparc32: Kill none_mask, it's bogus.
2010-07-21 09:28:50 -07:00
Yinghai Lu
95f72d1ed4 lmb: rename to memblock
via following scripts

      FILES=$(find * -type f | grep -vE 'oprofile|[^K]config')

      sed -i \
        -e 's/lmb/memblock/g' \
        -e 's/LMB/MEMBLOCK/g' \
        $FILES

      for N in $(find . -name lmb.[ch]); do
        M=$(echo $N | sed 's/lmb/memblock/g')
        mv $N $M
      done

and remove some wrong change like lmbench and dlmb etc.

also move memblock.c from lib/ to mm/

Suggested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-07-14 17:14:00 +10:00
FUJITA Tomonori
f5fa3cb9b7 sparc: remove homegrown L1_CACHE_ALIGN macro
Let's use the standard L1_CACHE_ALIGN macro instead.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-29 00:38:02 -07:00
David S. Miller
c67dda1438 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2010-06-26 10:27:00 -07:00
Dongdong Deng
43bc2db472 sparc64: fix the build error due to smp_kgdb_capture_client()
Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25 11:17:57 -07:00
David S. Miller
b7d45c3f74 sparc64: Fix maybe_change_configuration() PCR setting.
Need to mask out the existing event bits before OR'ing in
the new ones.

Noticed by Peter Zijlstra.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-23 11:39:02 -07:00
Jiri Kosina
f1bbbb6912 Merge branch 'master' into for-next 2010-06-16 18:08:13 +02:00
Uwe Kleine-König
421f91d21a fix typos concerning "initiali[zs]e"
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-06-16 18:05:05 +02:00
Julia Lawall
0d0659c78d arch/sparc/kernel: Eliminate what looks like a NULL pointer dereference
At the point of the test, action cannot be NULL, as it has been dereferenced
in the code just above.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E,E1;
identifier f;
statement S1,S2,S3;
@@

if ((E == NULL && ...) || ...)
{
  ... when != if (...) S1 else S2
      when != E = E1
* E->f
  ... when any
}
else S3
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-04 16:17:37 -07:00
Linus Torvalds
1f73897861 Merge branch 'for-35' of git://repo.or.cz/linux-kbuild
* 'for-35' of git://repo.or.cz/linux-kbuild: (81 commits)
  kbuild: Revert part of e8d400a to resolve a conflict
  kbuild: Fix checking of scm-identifier variable
  gconfig: add support to show hidden options that have prompts
  menuconfig: add support to show hidden options which have prompts
  gconfig: remove show_debug option
  gconfig: remove dbg_print_ptype() and dbg_print_stype()
  kconfig: fix zconfdump()
  kconfig: some small fixes
  add random binaries to .gitignore
  kbuild: Include gen_initramfs_list.sh and the file list in the .d file
  kconfig: recalc symbol value before showing search results
  .gitignore: ignore *.lzo files
  headerdep: perlcritic warning
  scripts/Makefile.lib: Align the output of LZO
  kbuild: Generate modules.builtin in make modules_install
  Revert "kbuild: specify absolute paths for cscope"
  kbuild: Do not unnecessarily regenerate modules.builtin
  headers_install: use local file handles
  headers_check: fix perl warnings
  export_report: fix perl warnings
  ...
2010-06-01 08:55:52 -07:00
Linus Torvalds
c5617b200a Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (61 commits)
  tracing: Add __used annotation to event variable
  perf, trace: Fix !x86 build bug
  perf report: Support multiple events on the TUI
  perf annotate: Fix up usage of the build id cache
  x86/mmiotrace: Remove redundant instruction prefix checks
  perf annotate: Add TUI interface
  perf tui: Remove annotate from popup menu after failure
  perf report: Don't start the TUI if -D is used
  perf: Fix getline undeclared
  perf: Optimize perf_tp_event_match()
  perf: Remove more code from the fastpath
  perf: Optimize the !vmalloc backed buffer
  perf: Optimize perf_output_copy()
  perf: Fix wakeup storm for RO mmap()s
  perf-record: Share per-cpu buffers
  perf-record: Remove -M
  perf: Ensure that IOC_OUTPUT isn't used to create multi-writer buffers
  perf, trace: Optimize tracepoints by using per-tracepoint-per-cpu hlist to track events
  perf, trace: Optimize tracepoints by removing IRQ-disable from perf/tracepoint interaction
  perf tui: Allow disabling the TUI on a per command basis in ~/.perfconfig
  ...
2010-05-27 15:23:47 -07:00
FUJITA Tomonori
1ef04370d8 asm-generic: remove ARCH_HAS_SG_CHAIN in scatterlist.h
There are more architectures that don't support ARCH_HAS_SG_CHAIN than
those that support it.  This removes removes ARCH_HAS_SG_CHAIN in
asm-generic/scatterlist.h and lets arhictectures to define it.

It's clearer than defining ARCH_HAS_SG_CHAIN asm-generic/scatterlist.h and
undefing it in arhictectures that don't support it.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:54 -07:00
FUJITA Tomonori
18e98307de asm-generic: add NEED_SG_DMA_LENGTH to define sg_dma_len()
There are only two ways to define sg_dma_len(); use sg->dma_length or
sg->length.  This patch introduces NEED_SG_DMA_LENGTH that enables
architectures to choose sg->dma_length or sg->length.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:54 -07:00
FUJITA Tomonori
204f3a0444 asm-generic: remove ISA_DMA_THRESHOLD in scatterlist.h
This is the first half of the attempt to use asm-generic/scatterlist.h
on every architecture.

There are only two ways to define scatterlist structure. So it's easy
to convert every architecture to use asm-generic/scatterlist.h.

This patch:

The trick for ISA_DMA_THRESHOLD in asm-generic/scatterlist.h doesn't work
for powerpc.  This lets architectures defin ISA_DMA_THRESHOLD.

Hopefully, we can remove ISA_DMA_THRESHOLD in the future; we can do better
to decide if the bouncing is necessary or not.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:54 -07:00
David S. Miller
0fc251d9a6 sparc64: Update defconfig.
Move from SLUB to SLAB, as this is what the world plans to align
to, every distribution enables, and thus is what everyone actually
is testing.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-26 21:18:23 -07:00
Linus Torvalds
13da9e200f Revert "endian: #define __BYTE_ORDER"
This reverts commit b3b77c8cae, which was
also totally broken (see commit 0d2daf5cc8 that reverted the crc32
version of it).  As reported by Stephen Rothwell, it causes problems on
big-endian machines:

> In file included from fs/jfs/jfs_types.h:33,
>                  from fs/jfs/jfs_incore.h:26,
>                  from fs/jfs/file.c:22:
> fs/jfs/endian24.h:36:101: warning: "__LITTLE_ENDIAN" is not defined

The kernel has never had that crazy "__BYTE_ORDER == __LITTLE_ENDIAN"
model.  It's not how we do things, and it isn't how we _should_ do
things.  So don't go there.

Requested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-26 08:30:15 -07:00
David S. Miller
c87fe1c05d sparc32: Kill none_mask, it's bogus.
For some reason, the pte_none() calculation for srmmu sparc32
chips was masking out the top 4 bits.  That doesn't make any
sense, as those are just some of the physical bits of the PTE
encoding.

Furthermore, this mistake breaks things when the offset of of a swap
entry has a large enough offset as reported by Тхай Кирилл.

Sun4c always set it to zero, so it's really completely useless,
kill it.

Reported-by: Тхай Кирилл <tkhai@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-25 23:36:31 -07:00
Joakim Tjernlund
b3b77c8cae endian: #define __BYTE_ORDER
Linux does not define __BYTE_ORDER in its endian header files which makes
some header files bend backwards to get at the current endian.  Lets
#define __BYTE_ORDER in big_endian.h/litte_endian.h to make it easier for
header files that are used in user space too.

In userspace the convention is that

  1. _both_ __LITTLE_ENDIAN and __BIG_ENDIAN are defined,
  2. you have to test for e.g. __BYTE_ORDER == __BIG_ENDIAN.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:07:02 -07:00
Grant Likely
cf9b59e9d3 Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.

Conflicts:
	drivers/i2c/busses/i2c-cpm.c
	drivers/i2c/busses/i2c-mpc.c
	drivers/net/gianfar.c

Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-22 00:36:56 -06:00
Grant Likely
4018294b53 of: Remove duplicate fields from of_platform_driver
.name, .match_table and .owner are duplicated in both of_platform_driver
and device_driver.  This patch is a removes the extra copies from struct
of_platform_driver and converts all users to the device_driver members.

This patch is a pretty mechanical change.  The usage model doesn't change
and if any drivers have been missed, or if anything has been fixed up
incorrectly, then it will fail with a compile time error, and the fixup
will be trivial.  This patch looks big and scary because it touches so
many files, but it should be pretty safe.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
2010-05-22 00:10:40 -06:00
Jason Wessel
c75fbb05b5 kgdb,sparc: Add in kgdb_arch_set_pc for sparc
The new debug core api requires all architectures that use to debug
core to implement a function to set the program counter.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: David S. Miller <davem@davemloft.net>
2010-05-20 21:04:19 -05:00
Linus Torvalds
f39d01be4c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (44 commits)
  vlynq: make whole Kconfig-menu dependant on architecture
  add descriptive comment for TIF_MEMDIE task flag declaration.
  EEPROM: max6875: Header file cleanup
  EEPROM: 93cx6: Header file cleanup
  EEPROM: Header file cleanup
  agp: use NULL instead of 0 when pointer is needed
  rtc-v3020: make bitfield unsigned
  PCI: make bitfield unsigned
  jbd2: use NULL instead of 0 when pointer is needed
  cciss: fix shadows sparse warning
  doc: inode uses a mutex instead of a semaphore.
  uml: i386: Avoid redefinition of NR_syscalls
  fix "seperate" typos in comments
  cocbalt_lcdfb: correct sections
  doc: Change urls for sparse
  Powerpc: wii: Fix typo in comment
  i2o: cleanup some exit paths
  Documentation/: it's -> its where appropriate
  UML: Fix compiler warning due to missing task_struct declaration
  UML: add kernel.h include to signal.c
  ...
2010-05-20 09:20:59 -07:00
Ingo Molnar
dfacc4d6c9 Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core 2010-05-20 14:38:55 +02:00
Linus Torvalds
7d02093e29 Merge branch 'timers-for-linus-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  avr32: Fix typo in read_persistent_clock()
  sparc: Convert sparc to use read/update_persistent_clock
  cris: Convert cris to use read/update_persistent_clock
  m68k: Convert m68k to use read/update_persistent_clock
  m32r: Convert m32r to use read/update_peristent_clock
  blackfin: Convert blackfin to use read/update_persistent_clock
  ia64: Convert ia64 to use read/update_persistent_clock
  avr32: Convert avr32 to use read/update_persistent_clock
  h8300: Convert h8300 to use read/update_persistent_clock
  frv: Convert frv to use read/update_persistent_clock
  mn10300: Convert mn10300 to use read/update_persistent_clock
  alpha: Convert alpha to use read/update_persistent_clock
  xtensa: Fix unnecessary setting of xtime
  time: Clean up direct xtime usage in xen
2010-05-19 17:10:06 -07:00
Linus Torvalds
711f77f53c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Define ARCH_SLAB_MINALIGN
  drivers/sbus/char/flash.c: flash_read should update ppos instead of file->f_pos
  sparc64: Fix stack dumping and tracing when function graph is enabled.
  sparc64: Show stack backtrace from show_regs() just like other platforms.
2010-05-19 13:34:20 -07:00
David S. Miller
273fca0eca sparc: Define ARCH_SLAB_MINALIGN
Because SLOB fancies being different, the default minimum alignment is
only "unsigned long" instead of SLAB/SLUB where the default is
"unsigned long long"

The inconsistency makes no sense and is asking for trouble, but define
ARCH_SLAB_MINALIGN to get it right in all cases even after they fix
the inconsistency.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:23:58 -07:00
Grant Likely
58f9b0b024 of: eliminate of_device->node and dev_archdata->{of,prom}_node
This patch eliminates the node pointer from struct of_device and the
of_node (or prom_node) pointer from struct dev_archdata since the node
pointer is now part of struct device proper when CONFIG_OF is set, and
all users of the old pointer locations have already been converted over
to use device->of_node.

Also remove dev_archdata_{get,set}_node() as it is no longer used by
anything.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-18 16:10:45 -06:00
Grant Likely
61c7a080a5 of: Always use 'struct device.of_node' to get device node pointer.
The following structure elements duplicate the information in
'struct device.of_node' and so are being eliminated.  This patch
makes all readers of these elements use device.of_node instead.

(struct of_device *)->node
(struct dev_archdata *)->prom_node (sparc)
(struct dev_archdata *)->of_node (powerpc & microblaze)

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-18 16:10:44 -06:00
Lin Ming
a13c3afd9b perf, sparc: Implement group scheduling transactional APIs
Convert to the transactional PMU API and remove the duplication of
group_sched_in().

[cross build only]

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Acked-by: David Miller <davem@davemloft.net>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1272002193.5707.65.camel@minggr.sh.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-05-18 18:59:12 +02:00
Linus Torvalds
cb41838bbc Merge branch 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, hweight: Use a 32-bit popcnt for __arch_hweight32()
  arch, hweight: Fix compilation errors
  x86: Add optimized popcnt variants
  bitops: Optimize hweight() by making use of compile-time evaluation
2010-05-18 09:17:01 -07:00
Anton Blanchard
f3d46f9d31 atomic_t: Cast to volatile when accessing atomic variables
In preparation for removing volatile from the atomic_t definition, this
patch adds a volatile cast to all the atomic read functions.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-17 07:57:27 -07:00
Andreas Dilger
0ddc9324b1 add descriptive comment for TIF_MEMDIE task flag declaration.
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-05-14 11:13:27 +02:00
Grant Likely
d706c1b050 driver-core: Add device node pointer to struct device
Currently, platforms using CONFIG_OF add a 'struct device_node *of_node'
to dev->archdata.  However, with CONFIG_OF becoming generic for all
architectures, it makes sense for commonality to move it out of archdata
and into struct device proper.

This patch adds a struct device_node *of_node member to struct device
and updates all locations which currently write the device_node pointer
into archdata to also update dev->of_node.  Subsequent patches will
modify callers to use the archdata location and ultimately remove
the archdata member entirely.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
CC: Michal Simek <monstr@monstr.eu>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: "David S. Miller" <davem@davemloft.net>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
CC: Jeremy Kerr <jeremy.kerr@canonical.com>
CC: microblaze-uclinux@itee.uq.edu.au
CC: linux-kernel@vger.kernel.org
CC: linuxppc-dev@ozlabs.org
CC: sparclinux@vger.kernel.org
2010-04-28 18:20:57 -06:00
David S. Miller
667f0cee3e sparc64: Fix stack dumping and tracing when function graph is enabled.
Like x86, when the function graph tracer is enabled, emit the ftrace
stub as well as the program counter it will be transformed back into.

We duplicate a lot of similar stack walking logic in 3 or 4 spots, so
eventually we should consolidate things like x86 does.

Thanks to Frederic Weisbecker for pointing this out.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-21 03:08:11 -07:00
David S. Miller
87e8f0e3e6 sparc64: Show stack backtrace from show_regs() just like other platforms.
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-21 02:31:50 -07:00
David S. Miller
28a1f533ae sparc64: Fix hardirq tracing in trap return path.
We can overflow the hardirq stack if we set the %pil here
so early, just let the normal control flow do it.

This is fine as we are allowed to do the actual IRQ enable
at any point after we call trace_hardirqs_on.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-20 00:48:37 -07:00
David S. Miller
baa06775e2 sparc64: Use correct pt_regs in decode_access_size() error paths.
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-19 13:46:48 -07:00
David S. Miller
6c94b1ee0c sparc64: Fix PREEMPT_ACTIVE value.
It currently overlaps the NMI bit.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-19 01:30:51 -07:00
David S. Miller
ec687886de sparc64: Run NMIs on the hardirq stack.
Otherwise we can overflow the main stack with the function tracer
enabled.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-14 02:04:29 -07:00
David S. Miller
035df35d96 sparc64: Allocate sufficient stack space in ftrace stubs.
128 bytes is sufficient for the register window save area, but the
calling conventions allow the callee to save up to 6 incoming argument
registers into the stack frame after the register window save area.

This means a minimal stack frame is 176 bytes (128 + (6 * 8)).

This fixes random crashes when using the function tracer.

Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-13 18:59:02 -07:00
Frederic Weisbecker
2e2dc1d755 sparc: Fix forgotten kmemleak headers inclusion
Fix forgotten kmemleak headers inclusion for kmemleak_not_leak()
declaration.

This fixes the following build error:

	arch/sparc/kernel/irq_64.c: In function ‘sun4v_build_virq’:
	arch/sparc/kernel/irq_64.c:657: error: implicit declaration of function ‘kmemleak_not_leak’

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-13 14:28:24 -07:00
David S. Miller
c011f80ba0 sparc64: Add some more commentary to __raw_local_irq_save()
Suggested by Peter Zijlstra

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-13 01:50:43 -07:00
David S. Miller
9343af084c Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	lib/Kconfig.debug
2010-04-13 00:28:45 -07:00
David S. Miller
e182c77cc2 sparc64: Fix memory leak in pci_register_iommu_region().
Found by kmemleak.

If request_resource() fails, we leak the struct resource we
allocated to represent the IOMMU mapping area.

This actually happens on sun4v machines because the IOMEM area is only
reported sans the IOMMU region, unlike all previous systems.  I'll
need to fix that at some point, but for now fix the leak.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-12 23:46:18 -07:00
David S. Miller
25ad403f67 sparc64: Add kmemleak annotation to sun4v_build_virq()
The only reference we store to this memory is in the form of a
physical address, so kmemleak can't see it.

Add a kmemleak_not_leak() annotation.

It's probably useful to be able to look at a dump of these things
either via debugfs or similar, and thus we could at some point store
them in some kind of table and therefore get rid of this annotation.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-12 23:46:17 -07:00
David S. Miller
8b8d8e2840 sparc64: Support kmemleak.
Only missing thing was an _sdata marker in vmlinux.lds.S

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-12 23:46:17 -07:00
David S. Miller
9960e9e894 sparc64: Add function graph tracer support.
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-12 22:37:26 -07:00
David S. Miller
a71d1d6bb1 sparc64: Give a stack frame to the ftrace call sites.
It's the only way we'll be able to implement the function
graph tracer properly.

A positive is that we no longer have to worry about the
linker over-optimizing the tail call, since we don't
use a tail call any more.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-12 22:37:15 -07:00
David S. Miller
daecbf58a5 sparc64: Use a seperate counter for timer interrupts and NMI checks, like x86.
This keeps us from having to use kstat_irqs_cpu() from the NMI handler,
the former of which is a profiled function.

Instead we use a currently empty slot in the cpu_data

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-12 22:37:07 -07:00