platform/upstream/kernel-adaptation-pc.git
15 years agoFix virt_to_phys() warnings
Kevin Cernekee [Sun, 5 Jul 2009 19:08:19 +0000 (12:08 -0700)]
Fix virt_to_phys() warnings

These warnings were observed on MIPS32 using 2.6.31-rc1 and gcc-4.2.0:

mm/page_alloc.c: In function 'alloc_pages_exact':
mm/page_alloc.c:1986: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast

drivers/usb/mon/mon_bin.c: In function 'mon_alloc_buff':
drivers/usb/mon/mon_bin.c:1264: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast

[akpm@linux-foundation.org: fix kernel/perf_counter.c too]
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agomm: mark page accessed before we write_end()
Josef Bacik [Sun, 5 Jul 2009 19:08:18 +0000 (12:08 -0700)]
mm: mark page accessed before we write_end()

In testing a backport of the write_begin/write_end AOPs, a 10% re-read
regression was noticed when running iozone.  This regression was
introduced because the old AOPs would always do a mark_page_accessed(page)
after the commit_write, but when the new AOPs where introduced, the only
place this was kept was in pagecache_write_end().

This patch does the same thing in the generic case as what is done in
pagecache_write_end(), which is just to mark the page accessed before we
do write_end().

Signed-off-by: Josef Bacik <jbacik@redhat.com>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoelf: fix multithreaded program core dumping on arm
Hui Zhu [Sun, 5 Jul 2009 19:08:15 +0000 (12:08 -0700)]
elf: fix multithreaded program core dumping on arm

Fix the multithread program core thread message error.

This issue affects arches with neither has CORE_DUMP_USE_REGSET nor
ELF_CORE_COPY_TASK_REGS, ARM is one of them.

The thread message of core file is generated in elf_dump_thread_status.
The register values is set by elf_core_copy_task_regs in this function.

If an arch doesn't define ELF_CORE_COPY_TASK_REGS,
elf_core_copy_task_regs() will do nothing.  Then the core file will not
have the register message of thread.

So add elf_core_copy_regs to set regiser values if ELF_CORE_COPY_TASK_REGS
doesn't define.

The following is how to reproduce this issue:

cat 1.c
#include <stdio.h>
#include <pthread.h>
#include <assert.h>

void td1(void * i)
{
       while (1)
       {
               printf ("1\n");
               sleep (1);
       }

       return;
}

void td2(void * i)
{
       while (1)
       {
               printf ("2\n");
               sleep (1);
       }

       return;
}

int
main(int argc,char *argv[],char *envp[])
{
       pthread_t       t1,t2;

       pthread_create(&t1, NULL, (void*)td1, NULL);
       pthread_create(&t2, NULL, (void*)td2, NULL);

       sleep (10);

       assert(0);

       return (0);
}
arm-xxx-gcc -g -lpthread 1.c -o 1
copy 1.c and 1 to a arm board.
Goto this board.
ulimit -c 1800000
./1
# ./1
1
2
1
...
...
1
1: 1.c:37: main: Assertion `0' failed.
Aborted (core dumped)
Then you can get a core file.
gdb 1 core.xxx
Without the patch:
(gdb) info threads
 3 process 909  0x00000000 in ?? ()
 2 process 908  0x00000000 in ?? ()
* 1 process 907  0x4a6e2238 in raise () from /lib/libc.so.6
You can found that the pc of 909 and 908 is 0x00000000.
With the patch:
(gdb) info threads
 3 process 885  0x4a749974 in nanosleep () from /lib/libc.so.6
 2 process 884  0x4a749974 in nanosleep () from /lib/libc.so.6
* 1 process 883  0x4a6e2238 in raise () from /lib/libc.so.6
The pc of 885 and 884 is right.

Signed-off-by: Hui Zhu <teawater@gmail.com>
Cc: Amerigo Wang <xiyou.wangcong@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agosys_sync(): fix 16% performance regression in ffsb create_4k test
Zhang, Yanmin [Sun, 5 Jul 2009 19:08:08 +0000 (12:08 -0700)]
sys_sync(): fix 16% performance regression in ffsb create_4k test

I run many ffsb test cases on JBODs (typically 13/12 disks).  Comparing
with kernel 2.6.30, 2.6.31-rc1 has about 16% regression with
ffsb_create_4k.  The sub test case creates files continuously for 10
minitues and every file is 1MB.

Bisect located below patch.

5cee5815d1564bbbd505fea86f4550f1efdb5cd0 is first bad commit
commit 5cee5815d1564bbbd505fea86f4550f1efdb5cd0
Author: Jan Kara <jack@suse.cz>
Date:   Mon Apr 27 16:43:51 2009 +0200

    vfs: Make sys_sync() use fsync_super() (version 4)

    It is unnecessarily fragile to have two places (fsync_super() and do_sync())
    doing data integrity sync of the filesystem. Alter __fsync_super() to
    accommodate needs of both callers and use it. So after this patch
    __fsync_super() is the only place where we gather all the calls needed to
    properly send all data on a filesystem to disk.

As a matter of fact, ffsb calls sys_sync in the end to make sure all data
is flushed to disks and the flushing is counted into the result.  vmstat
shows ffsb is blocked when syncing for a long time.  With 2.6.30, ffsb is
blocked for a short time.

I checked the patch and did experiments to recover the original methods.
Eventually, the root cause is the patch deletes the calling to
wakeup_pdflush when syncing, so only ffsb is blocked on disk I/O.
wakeup_pdflush could ask pdflush to write back pages with ffsb at the
same time.

[akpm@linux-foundation.org: restore comment too]
Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agogcov: exclude code operating in userspace from profiling
Peter Oberparleiter [Sun, 5 Jul 2009 19:08:06 +0000 (12:08 -0700)]
gcov: exclude code operating in userspace from profiling

Fix for this issue on x86_64:

rostedt@goodmis.org wrote:
> On bootup of the latest kernel my init segfaults. Debugging it,
> I found  that vread_tsc (a vsyscall) increments some strange
> kernel memory:
>
0000000000000000 <vread_tsc>:
>    0:   55                      push   %rbp
>    1:   48 ff 05 00 00 00 00    incq   0(%rip)
>                         # 8 <vread_tsc+0x8>
>                         4: R_X86_64_PC32        .bss+0x3c
>    8:   48 89 e5                mov    %rsp,%rbp
>    b:   66 66 90                xchg   %ax,%ax
>    e:   48 ff 05 00 00 00 00    incq   0(%rip)
>                         # 15 <vread_tsc+0x15>
>                         11: R_X86_64_PC32       .bss+0x44
>   15:   66 66 90                xchg   %ax,%ax
>   18:   48 ff 05 00 00 00 00    incq   0(%rip)
>                         # 1f <vread_tsc+0x1f>
>                         1b: R_X86_64_PC32       .bss+0x4c
>   1f:   0f 31                   rdtsc
>
>
> Those "incq" is very bad to happen in vsyscall memory, since
> userspace can not modify it. You need to make something prevent
> profiling of vsyscall  memory (like I do with ftrace).

Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agortc: ds1374, fix lock imbalance
Jiri Slaby [Sun, 5 Jul 2009 19:08:03 +0000 (12:08 -0700)]
rtc: ds1374, fix lock imbalance

When i2c_smbus_read_byte_data fails in ds1374_work, we forgot to unlock
the held lock.  Fix that.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agovlynq: fix typo in Kconfig to enable debugging
Florian Fainelli [Sun, 5 Jul 2009 19:08:02 +0000 (12:08 -0700)]
vlynq: fix typo in Kconfig to enable debugging

Fix a typo in the VLYNQ bus driver Kconfig which prevented to turn on
VLYNQ bus debugging.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agovlynq: correct typo of missing "CONFIG_" prefix in ifdef
Robert P. J. Day [Sun, 5 Jul 2009 19:08:00 +0000 (12:08 -0700)]
vlynq: correct typo of missing "CONFIG_" prefix in ifdef

Fix a typo in the vlynq bus driver which was missing the CONFIG_ prefix to
turn on debugging code.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agosisfb: fix regression with uninitalized fb_info->mm_lock mutex
Krzysztof Helt [Mon, 6 Jul 2009 19:11:24 +0000 (21:11 +0200)]
sisfb: fix regression with uninitalized fb_info->mm_lock mutex

Remove redundant call to the sisfb_get_fix() before sis frambuffer is
registered.

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Tested-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoLinux 2.6.31-rc2 v2.6.31-rc2
Linus Torvalds [Sat, 4 Jul 2009 17:58:48 +0000 (10:58 -0700)]
Linux 2.6.31-rc2

15 years agovideo: sm501fb: Early initialization of mm_lock mutex.
Paul Mundt [Fri, 3 Jul 2009 06:45:56 +0000 (15:45 +0900)]
video: sm501fb: Early initialization of mm_lock mutex.

Commit 537a1bf059fa312355696fa6db80726e655e7f17 (fbdev: add mutex for
fb_mmap locking) introduces a ->mm_lock mutex for protecting smem
assignments. Unfortunately in the case of sm501fb these happen quite
early in the initialization code, well before the mutex_init() that takes
place in register_framebuffer(), leading to:

   Badness at kernel/mutex.c:207

   Pid : 1, Comm:          swapper
   CPU : 0                 Not tainted  (2.6.31-rc1-00284-g529ba0d-dirty #2273)

   PC is at __mutex_lock_slowpath+0x72/0x1bc
   PR is at __mutex_lock_slowpath+0x66/0x1bc
   ...

matroxfb appears to have the same issue and has solved it with an early
mutex_init(), so we do the same for sm501fb.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
Linus Torvalds [Sat, 4 Jul 2009 17:35:12 +0000 (10:35 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/kyle/parisc-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: (27 commits)
  parisc: use generic atomic64 on 32-bit
  parisc: superio: fix build breakage
  parisc: Fix PCI resource allocation on non-PAT SBA machines
  parisc: perf: wire up sys_perf_counter_open
  parisc: add task_pt_regs macro
  parisc: wire sys_perf_counter_open to sys_ni_syscall
  parisc: inventory.c, fix bloated stack frame
  parisc: processor.c, fix bloated stack frame
  parisc: fix compile warning in mm/init.c
  parisc: remove dead code from sys_parisc32.c
  parisc: wire up rt_tgsigqueueinfo
  parisc: ensure broadcast tlb purge runs single threaded
  parisc: fix "delay!" timer handling
  parisc: fix mismatched parenthesis in memcpy.c
  parisc: Fix gcc 4.4 warning in lba_pci.c
  parisc: add parameter to read_cr16()
  parisc: decode_exc.c should include kernel.h
  parisc: remove obsolete hw_interrupt_type
  parisc: fix irq compile bugs in arch/parisc/kernel/irq.c
  parisc: advertise PCI devs after "assign_resources"
  ...

Manually fixed up trivial conflicts in tools/perf/perf.h due to addition
of SH vs HPPA perf-counter support.

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Linus Torvalds [Sat, 4 Jul 2009 17:31:26 +0000 (10:31 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sameo/mfd-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
  mfd: fix pcap adc locking
  mfd: sm501, fix lock imbalance

15 years agoMerge branch 'for-2.6.31' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Sat, 4 Jul 2009 17:11:38 +0000 (10:11 -0700)]
Merge branch 'for-2.6.31' of git://linux-nfs.org/~bfields/linux

* 'for-2.6.31' of git://linux-nfs.org/~bfields/linux:
  NFSD: Don't hold unrefcounted creds over call to nfsd_setuser()

15 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Sat, 4 Jul 2009 16:47:01 +0000 (09:47 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  MIPS: Fix CONFIG_FLATMEM version of pfn_valid()
  MIPS: Reorganize Cavium OCTEON PCI support.
  Update Yoichi Yuasa's e-mail address
  MIPS: Allow suspend and hibernation again on uniprocessor kernels.
  MIPS: 64-bit: Fix o32 core dump
  MIPS: BC47xx: Fix SSB irq setup
  MIPS: CMP: Update sync-r4k for current kernel
  MIPS: CMP: Move gcmp_probe to before the SMP ops
  MIPS: CMP: activate CMP support
  MIPS: CMP: Extend IPI handling to CPU number
  MIPS: CMP: Extend the GIC IPI interrupts beyond 32
  MIPS: Define __arch_swab64 for all mips r2 cpus
  MIPS: Update VR41xx GPIO driver to use gpiolib
  MIPS: Hookup new syscalls sys_rt_tgsigqueueinfo and sys_perf_counter_open.
  MIPS: Malta: Remove unnecessary function prototypes
  MIPS: MT: Remove unnecessary semicolons
  MIPS: Add support for Texas Instruments AR7 System-on-a-Chip

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Sat, 4 Jul 2009 16:46:13 +0000 (09:46 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  sound: do not set DEVNAME for OSS devices
  ALSA: hda - Add sanity check in PCM open callback
  ALSA: hda - Call snd_pcm_lib_hw_rates() again after codec open callback
  ALSA: hda - Avoid invalid formats and rates with shared SPDIF
  ALSA: hda - Improve ASUS eeePC 1000 mixer
  ALSA: hda - Add GPIO1 control at muting with HP laptops
  ALSA: usx2y - reparent sound device
  ALSA: snd_usb_caiaq: reparent sound device
  sound: virtuoso: fix Xonar D1/DX silence after resume
  ASoC: Only disable pxa2xx-i2s clocks if we enabled them
  ALSA: hda - Add quirk for HP 6930p
  ALSA: hda - Add missing static to patch_ca0110()
  ASoC: OMAP: fix OMAP1510 broken PCM pointer callback
  ASoC: remove BROKEN from Efika and pcm030 fabric drivers
  ASoC: Fix typo in MPC5200 PSC AC97 driver Kconfig

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
Linus Torvalds [Sat, 4 Jul 2009 16:46:01 +0000 (09:46 -0700)]
Merge git://git./linux/kernel/git/sam/kbuild-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild: finally remove the obsolete variable $TOPDIR
  gitignore: ignore scripts/ihex2fw
  Kbuild: Disable the -Wformat-security gcc flag
  gitignore: ignore gcov output files
  kbuild: deb-pkg ship changelog
  Add new __init_task_data macro to be used in arch init_task.c files.
  asm-generic/vmlinux.lds.h: shuffle INIT_TASK* macro names in vmlinux.lds.h
  Add new macros for page-aligned data and bss sections.
  asm-generic/vmlinux.lds.h: Fix up RW_DATA_SECTION definition.

15 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Sat, 4 Jul 2009 16:45:31 +0000 (09:45 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: don't merge requests of different failfast settings
  cciss: Ignore stale commands after reboot

15 years agoMerge branch 'fix/soundcore' into for-linus
Takashi Iwai [Fri, 3 Jul 2009 21:50:47 +0000 (23:50 +0200)]
Merge branch 'fix/soundcore' into for-linus

* fix/soundcore:
  sound: do not set DEVNAME for OSS devices

15 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 3 Jul 2009 21:50:45 +0000 (23:50 +0200)]
Merge branch 'fix/hda' into for-linus

* fix/hda:
  ALSA: hda - Add sanity check in PCM open callback
  ALSA: hda - Call snd_pcm_lib_hw_rates() again after codec open callback
  ALSA: hda - Avoid invalid formats and rates with shared SPDIF
  ALSA: hda - Improve ASUS eeePC 1000 mixer
  ALSA: hda - Add GPIO1 control at muting with HP laptops

15 years agosound: do not set DEVNAME for OSS devices
Kay Sievers [Fri, 3 Jul 2009 18:56:05 +0000 (20:56 +0200)]
sound: do not set DEVNAME for OSS devices

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: hda - Add sanity check in PCM open callback
Takashi Iwai [Fri, 3 Jul 2009 21:10:23 +0000 (23:10 +0200)]
ALSA: hda - Add sanity check in PCM open callback

Add some sanity checks of struct snd_pcm_hardware fields in the PCM
open callback of hda driver.  This makes a bit easier to debug any PCM
setup errors in the codec side.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: hda - Call snd_pcm_lib_hw_rates() again after codec open callback
Takashi Iwai [Fri, 3 Jul 2009 21:06:45 +0000 (23:06 +0200)]
ALSA: hda - Call snd_pcm_lib_hw_rates() again after codec open callback

The PCM rates bit field may have been changed by the codec open callback.
In that case, we need to reset rate_min and rate_max.  So, simply call
snd_pcm_lib_hw_rates() again after the codec open callback.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: hda - Avoid invalid formats and rates with shared SPDIF
Takashi Iwai [Fri, 3 Jul 2009 21:03:30 +0000 (23:03 +0200)]
ALSA: hda - Avoid invalid formats and rates with shared SPDIF

Check whether formats and rates don't result in zero due to the
restriction of SPDIF sharing.  If any of them can be zero, disable
the SPDIF sharing mode instead.  Otherwise it will lead to a PCM
configuration error.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoblock: don't merge requests of different failfast settings
Tejun Heo [Fri, 3 Jul 2009 10:56:18 +0000 (12:56 +0200)]
block: don't merge requests of different failfast settings

Block layer used to merge requests and bios with different failfast
settings.  This caused regular IOs to fail prematurely when they were
merged into failfast requests for readahead.

Niel Lambrechts could trigger the problem semi-reliably on ext4 when
resuming from STR.  ext4 uses readahead when reading inodes and
combined with the deterministic extra SATA PHY exception cycle during
resume on the specific configuration, non-readahead inode read would
fail causing ext4 errors.  Please read the following thread for
details.

  http://lkml.org/lkml/2009/5/23/21

This patch makes block layer reject merging if the failfast settings
don't match.  This is correct but likely to lower IO performance by
preventing regular IOs from mingling into surrounding readahead
requests.  Changes to allow such mixed merges and handle errors
correctly will be added later.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Niel Lambrechts <niel.lambrechts@gmail.com>
Cc: Theodore Tso <tytso@mit.edu>
Signed-off-by: Jens Axboe <axboe@carl.(none)>
15 years agocciss: Ignore stale commands after reboot
Hannes Reinecke [Thu, 2 Jul 2009 20:02:06 +0000 (22:02 +0200)]
cciss: Ignore stale commands after reboot

When doing an unexpected shutdown like kexec the cciss
firmware might still have some commands in flight, which
it is trying to complete.
The driver is doing it's best on resetting the HBA,
but sadly there's a firmware issue causing the firmware
_not_ to abort or drop old commands.
So the firmware will send us commands which we haven't
accounted for, causing the driver to panic.

With this patch we're just ignoring these commands as
there is nothing we could be doing with them anyway.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Jens Axboe <axboe@carl.(none)>
15 years agoMIPS: Fix CONFIG_FLATMEM version of pfn_valid()
Ralf Baechle [Fri, 3 Jul 2009 06:11:15 +0000 (07:11 +0100)]
MIPS: Fix CONFIG_FLATMEM version of pfn_valid()

For systems which do not define PHYS_OFFSET as 0 pfn_valid() may falsely
have returned 0 on most configurations.  Bug introduced by commit
752fbeb2e3555c0d236e992f1195fd7ce30e728d (linux-mips.org) rsp.
6f284a2ce7b8bc49cb8455b1763357897a899abb (kernel.org) titled "[MIPS]
FLATMEM: introduce PHYS_OFFSET."

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Reorganize Cavium OCTEON PCI support.
David Daney [Tue, 30 Jun 2009 00:18:51 +0000 (17:18 -0700)]
MIPS: Reorganize Cavium OCTEON PCI support.

Move the cavium PCI files to the arch/mips/pci directory.  Also cleanup
comment formatting and code layout.  Code from pci-common.c, was moved
into other files.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoUpdate Yoichi Yuasa's e-mail address
Yoichi Yuasa [Thu, 2 Jul 2009 15:39:38 +0000 (00:39 +0900)]
Update Yoichi Yuasa's e-mail address

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Allow suspend and hibernation again on uniprocessor kernels.
Ralf Baechle [Thu, 2 Jul 2009 10:48:07 +0000 (11:48 +0100)]
MIPS: Allow suspend and hibernation again on uniprocessor kernels.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
15 years agoMIPS: 64-bit: Fix o32 core dump
Yong Zhang [Wed, 1 Jul 2009 01:35:39 +0000 (09:35 +0800)]
MIPS: 64-bit: Fix o32 core dump

If an o32 process generates a core dump on a 64 bit kernel, the core file
will not be correctly recognized. This is because ELF_CORE_COPY_REGS and
ELF_CORE_COPY_TASK_REGS are not correctly defined for o32 and will use
the default register set which would be CONFIG_64BIT in asm/elf.h.

So we'll switch to use the right register defines in this situation by
checking for WANT_COMPAT_REG_H and use the right defines of
ELF_CORE_COPY_REGS and ELF_CORE_COPY_TASK_REGS.

[Ralf: made ELF_CORE_COPY_TASK_REGS() bullet-proof against funny arguments.]

Signed-off-by: Yong Zhang <yong.zhang@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: BC47xx: Fix SSB irq setup
matthieu castet [Tue, 30 Jun 2009 21:04:55 +0000 (23:04 +0200)]
MIPS: BC47xx: Fix SSB irq setup

The current ssb irq setup in ssb_mipscore_init has the problem that it
configures some device on some irq without checking that the irq is not
taken by an other device.

For example in my case PCI host is on irq 0 and IPSEC on irq 3.
The current code:
  - store in dev->irq that IPSEC irq is 3 + 2
  - do a set_irq 0->3 on PCI host

But now IPSEC irq is not routed anymore to the mips code and dev->irq is
wrong.  This causes a problem described in [1].

This patch tries to solve the problem by making set_irq configure the
device we want to take the irq on the shared irq0. The previous example
becomes:
  - store in dev->irq that IPSEC irq is 3 + 2
  - do a set_irq 0->3 on PCI host:
  - irq 3 is already taken by IPSEC. do a set_irq 3->0 on IPSEC

I also added some code to print the irq configuration after irq setup to
allow easier debugging. And I add extra checking in ssb_mips_irq to report
device without irq or device with not routed irq.

[1] http://www.danm.de/files/src/bcm5365p/REPORTED_DEVICES

Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
Acked-by : Michael Buesch <mb@bu3sch.de>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: CMP: Update sync-r4k for current kernel
Tim Anderson [Wed, 17 Jun 2009 23:40:34 +0000 (16:40 -0700)]
MIPS: CMP: Update sync-r4k for current kernel

This revises the sync-4k so it will boot and operate since the removal of
expirelo from the timer code.

Signed-off-by: Tim Anderson <tanderson@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: CMP: Move gcmp_probe to before the SMP ops
Tim Anderson [Wed, 17 Jun 2009 23:25:18 +0000 (16:25 -0700)]
MIPS: CMP: Move gcmp_probe to before the SMP ops

This is to move the gcmp_probe call to before the use of and selection of
the smp_ops functions. This allows malta with 1004K to work.

Signed-off-by: Tim Anderson <tanderson@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: CMP: activate CMP support
Tim Anderson [Wed, 17 Jun 2009 23:22:53 +0000 (16:22 -0700)]
MIPS: CMP: activate CMP support

Most of the CMP support was added before, this mostly correct compile
problems but adds a platform specific translation for the interrupt number
based on cpu number.

Signed-off-by: Tim Anderson <tanderson@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: CMP: Extend IPI handling to CPU number
Tim Anderson [Wed, 17 Jun 2009 23:22:25 +0000 (16:22 -0700)]
MIPS: CMP: Extend IPI handling to CPU number

This takes the current IPI interrupt assignment from the fix number of 4
to the number of CPUs defined in the system.

Signed-off-by: Tim Anderson <tanderson@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: CMP: Extend the GIC IPI interrupts beyond 32
Tim Anderson [Wed, 17 Jun 2009 23:21:19 +0000 (16:21 -0700)]
MIPS: CMP: Extend the GIC IPI interrupts beyond 32

This patch extends the GIC interrupt handling beyond the current 32 bit
range as well as extending the number of interrupts based on the number
of CPUs.

Signed-off-by: Tim Anderson <tanderson@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Define __arch_swab64 for all mips r2 cpus
David Daney [Mon, 29 Jun 2009 16:54:15 +0000 (09:54 -0700)]
MIPS: Define __arch_swab64 for all mips r2 cpus

Some CPUs implement mipsr2, but because they are a super-set of mips64r2 do
not define CONFIG_CPU_MIPS64_R2.  Cavium OCTEON falls into this category.
We would still like to use the optimized implementation, so since we have
already checked for CONFIG_CPU_MIPSR2, checking for CONFIG_64BIT instead of
CONFIG_CPU_MIPS64_R2 is sufficient.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Update VR41xx GPIO driver to use gpiolib
Yoichi Yuasa [Mon, 29 Jun 2009 02:11:05 +0000 (11:11 +0900)]
MIPS: Update VR41xx GPIO driver to use gpiolib

Signed-off-by: Yoichi Yuasa <yyuasa@linux.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Hookup new syscalls sys_rt_tgsigqueueinfo and sys_perf_counter_open.
David Daney [Fri, 26 Jun 2009 16:53:57 +0000 (09:53 -0700)]
MIPS: Hookup new syscalls sys_rt_tgsigqueueinfo and sys_perf_counter_open.

[Ralf: I fixed up the numbering in the comment in scall64-n32.S.]

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Malta: Remove unnecessary function prototypes
Dmitri Vorobiev [Fri, 26 Jun 2009 16:59:25 +0000 (19:59 +0300)]
MIPS: Malta: Remove unnecessary function prototypes

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: MT: Remove unnecessary semicolons
Joe Perches [Sun, 28 Jun 2009 16:26:09 +0000 (09:26 -0700)]
MIPS: MT: Remove unnecessary semicolons

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Add support for Texas Instruments AR7 System-on-a-Chip
Florian Fainelli [Wed, 24 Jun 2009 09:12:57 +0000 (11:12 +0200)]
MIPS: Add support for Texas Instruments AR7 System-on-a-Chip

This patch adds support for the Texas Instruments AR7 System-on-a-Chip.
It supports the TNETD7100, 7200 and 7300 versions of the SoC.

Signed-off-by: Matteo Croce <matteo@openwrt.org>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Eugene Konev <ejka@openwrt.org>
Signed-off-by: Nicolas Thill <nico@openwrt.org>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoNFSD: Don't hold unrefcounted creds over call to nfsd_setuser()
David Howells [Thu, 2 Jul 2009 13:35:32 +0000 (14:35 +0100)]
NFSD: Don't hold unrefcounted creds over call to nfsd_setuser()

nfsd_open() gets an unrefcounted pointer to the current process's effective
credentials at the top of the function, then calls nfsd_setuser() via
fh_verify() - which may replace and destroy the current process's effective
credentials - and then passes the unrefcounted pointer to dentry_open() - but
the credentials may have been destroyed by this point.

Instead, the value from current_cred() should be passed directly to
dentry_open() as one of its arguments, rather than being cached in a variable.

Possibly fh_verify() should return the creds to use.

This is a regression introduced by
745ca2475a6ac596e3d8d37c2759c0fbe2586227 "CRED: Pass credentials through
dentry_open()".

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-and-Verified-By: Steve Dickson <steved@redhat.com>
Cc: stable@kernel.org
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
15 years agoALSA: hda - Improve ASUS eeePC 1000 mixer
Takashi Iwai [Fri, 3 Jul 2009 13:00:54 +0000 (15:00 +0200)]
ALSA: hda - Improve ASUS eeePC 1000 mixer

The mixer elements created for ASUS eeePC 1000 with ALC269 aren't
standard but strange words like "LineOut".  Rename the element names
to follow the standard one like "Headphone" and "Speaker".
Also, split the volumes to each so that the virtual master can control
them.

The alc269_fujitsu_mixer is removed because it's now identical with
the new eeepc mixer.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: hda - Add GPIO1 control at muting with HP laptops
Takashi Iwai [Thu, 2 Jul 2009 14:10:23 +0000 (16:10 +0200)]
ALSA: hda - Add GPIO1 control at muting with HP laptops

HP laptops with AD1984A codecs (at least mobile models) need to set
GPIO1 appropriately to indicate the mute state.  The BIOS checks this
bit to judge whether the mute on or off is sent via F8 key.
Without changing this bit, the BIOS can be confused and may toggle
the mute wrongly.

Reference: Novell bnc#515266
https://bugzilla.novell.com/show_bug.cgi?id=515266

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agomfd: fix pcap adc locking
Daniel Ribeiro [Tue, 23 Jun 2009 15:30:58 +0000 (12:30 -0300)]
mfd: fix pcap adc locking

Release the lock on error.

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
15 years agomfd: sm501, fix lock imbalance
Jiri Slaby [Sun, 21 Jun 2009 22:00:02 +0000 (00:00 +0200)]
mfd: sm501, fix lock imbalance

Add omitted unlock in sm501_unit_power.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
15 years agoparisc: use generic atomic64 on 32-bit
Kyle McMartin [Thu, 2 Jul 2009 17:10:29 +0000 (13:10 -0400)]
parisc: use generic atomic64 on 32-bit

Somewhat redundant since our atomic_t uses hashed-locks on 32-bit
anyway... Maybe we can clean those up to be generic too someday.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: superio: fix build breakage
Alexander Beregalov [Thu, 16 Apr 2009 14:45:59 +0000 (14:45 +0000)]
parisc: superio: fix build breakage

Usage of parport_pc_probe_port was changed in 28783eb52
(parport: Fix various uses of parport_pc).

It introduced this build error:
drivers/parisc/superio.c: In function 'superio_parport_init':
drivers/parisc/superio.c:437: error: too few arguments to function
'parport_pc_probe_port'

Fix it.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: Fix PCI resource allocation on non-PAT SBA machines
Matthew Wilcox [Fri, 26 Jun 2009 17:44:18 +0000 (17:44 +0000)]
parisc: Fix PCI resource allocation on non-PAT SBA machines

We weren't marking the resources as memory resources, so they weren't
being found by pci_claim_resource().

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: perf: wire up sys_perf_counter_open
Kyle McMartin [Wed, 24 Jun 2009 01:38:49 +0000 (21:38 -0400)]
parisc: perf: wire up sys_perf_counter_open

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: add task_pt_regs macro
Kyle McMartin [Wed, 24 Jun 2009 01:32:18 +0000 (21:32 -0400)]
parisc: add task_pt_regs macro

needed for perf_counters.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: wire sys_perf_counter_open to sys_ni_syscall
Kyle McMartin [Wed, 24 Jun 2009 00:22:06 +0000 (20:22 -0400)]
parisc: wire sys_perf_counter_open to sys_ni_syscall

Reserve a syscall slot for sys_perf_counter_open.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: inventory.c, fix bloated stack frame
Kyle McMartin [Tue, 23 Jun 2009 17:11:22 +0000 (13:11 -0400)]
parisc: inventory.c, fix bloated stack frame

The pa_pdc_cell struct can be kmalloc'd, so do that
instead.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: processor.c, fix bloated stack frame
Kyle McMartin [Tue, 23 Jun 2009 17:10:03 +0000 (13:10 -0400)]
parisc: processor.c, fix bloated stack frame

The pa_pdc_cell struct can be kmalloc'd, so do that instead.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: fix compile warning in mm/init.c
Kyle McMartin [Tue, 23 Jun 2009 15:51:43 +0000 (11:51 -0400)]
parisc: fix compile warning in mm/init.c

arch/parisc/mm/init.c: In function 'free_initmem':
381: warning: passing argument 1 of 'memset' makes pointer from integer without a cast

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: remove dead code from sys_parisc32.c
Christoph Hellwig [Tue, 23 Jun 2009 15:47:07 +0000 (11:47 -0400)]
parisc: remove dead code from sys_parisc32.c

Unless I'm totally missing something get_fd_set32/set_fd_set32 are
completely unused.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: wire up rt_tgsigqueueinfo
Kyle McMartin [Tue, 23 Jun 2009 15:40:37 +0000 (11:40 -0400)]
parisc: wire up rt_tgsigqueueinfo

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: ensure broadcast tlb purge runs single threaded
Helge Deller [Tue, 16 Jun 2009 20:51:48 +0000 (20:51 +0000)]
parisc: ensure broadcast tlb purge runs single threaded

The TLB flushing functions on hppa, which causes PxTLB broadcasts on the system
bus, needs to be protected by irq-safe spinlocks to avoid irq handlers to deadlock
the kernel. The deadlocks only happened during I/O intensive loads and triggered
pretty seldom, which is why this bug went so long unnoticed.

Signed-off-by: Helge Deller <deller@gmx.de>
[edited to use spin_lock_irqsave on UP as well since we'd been locking there
 all this time anyway, --kyle]
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: fix "delay!" timer handling
Grant Grundler [Mon, 1 Jun 2009 00:20:23 +0000 (00:20 +0000)]
parisc: fix "delay!" timer handling

Rewrote timer_interrupt() to properly handle the "delayed!" case.

If we used floating point math to compute the number of ticks that had
elapsed since the last timer interrupt, it could take up to 12K cycles
(emperical!) to handle the interrupt. Existing code assumed it would
never take more than 8k cycles. We end up programming Interval Timer
to a value less than "current" cycle counter.  Thus have to wait until
Interval Timer "wrapped" and would then get the "delayed!" printk that
I moved below.

Since we don't really know what the upper limit is, I prefer to read
CR16 again after we've programmed it to make sure we won't have to
wait for CR16 to wrap.

Further, the printk was between reading CR16 (cycle couner) and writing CR16
(the interval timer). This would cause us to continue to set the interval
timer to a value that was "behind" the cycle counter. Rinse and repeat.
So no printk's between reading CR16 and setting next interval timer.

Tested on A500 (550 Mhz PA8600).

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Tested-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
----
Kyle, Helge, and other parisc's,
Please test on 32-bit before committing.
I think I have it right but recognize I might not.

TODO: I wanted to use "do_div()" in order to get both remainder
and value back with one division op. That should help with the
latency alot but can be applied seperately from this patch.

thanks,
grant

15 years agoparisc: fix mismatched parenthesis in memcpy.c
Randolph Chung [Tue, 23 Jun 2009 14:53:26 +0000 (14:53 +0000)]
parisc: fix mismatched parenthesis in memcpy.c

>>>> I think this is what was intended? Note that this patch may affect
>>>> profiling.
>>> it really should be
>>>
>>> -    if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
>>> +    if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
>>>
>>> randolph

Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Randolph Chung <tausq@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: Fix gcc 4.4 warning in lba_pci.c
Grant Grundler [Tue, 23 Jun 2009 15:03:11 +0000 (11:03 -0400)]
parisc: Fix gcc 4.4 warning in lba_pci.c

gcc 4.4 warns about:
drivers/parisc/lba_pci.c: In function 'lba_pat_resources':
drivers/parisc/lba_pci.c:1099: warning: the frame size of 8280 bytes is larger than 4096 bytes

The problem is we declare two large structures on the stack. They don't need
to be on the stack since they are only used during LBA initialization (which
is serialized). Moving to be "static".

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: add parameter to read_cr16()
Coly Li [Thu, 30 Apr 2009 22:43:46 +0000 (22:43 +0000)]
parisc: add parameter to read_cr16()

This patch modifies parameter of au1x_counter1_read() from 'void' to 'struct
clocksource *cs', which fixes compile warning for incompatible parameter type.

Signed-off-by: Coly Li <coly.li@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: decode_exc.c should include kernel.h
Alexander Beregalov [Mon, 6 Apr 2009 09:29:58 +0000 (09:29 +0000)]
parisc: decode_exc.c should include kernel.h

Fix this build error:
arch/parisc/math-emu/decode_exc.c:351: undefined reference to `printk'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: remove obsolete hw_interrupt_type
Thomas Gleixner [Wed, 10 Jun 2009 19:56:04 +0000 (19:56 +0000)]
parisc: remove obsolete hw_interrupt_type

The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have
been kept around for migration reasons.  After more than two years it's
time to remove them finally.

This patch cleans up one of the remaining users.  When all such patches
hit mainline we can remove the defines and typedefs finally.

Impact: cleanup

Convert the last remaining users to struct irq_chip and remove the
define.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: fix irq compile bugs in arch/parisc/kernel/irq.c
Helge Deller [Sat, 6 Jun 2009 21:54:28 +0000 (21:54 +0000)]
parisc: fix irq compile bugs in arch/parisc/kernel/irq.c

Fix miscompilation in arch/parisc/kernel/irq.c:
123: warning: passing arg 1 of `cpumask_setall' from incompatible pointer type
141: warning: passing arg 1 of `cpumask_copy' from incompatible pointer type
300: warning: passing arg 1 of `cpumask_copy' from incompatible pointer type
357: warning: passing arg 2 of `cpumask_copy' from incompatible pointer type

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: advertise PCI devs after "assign_resources"
Grant Grundler [Mon, 20 Apr 2009 04:28:22 +0000 (04:28 +0000)]
parisc: advertise PCI devs after "assign_resources"

Alex Chiang asked me why PARISC was calling pci_bus_add_devices()
and pci_bus_assign_resources() in the opposite order from everyone else.
No reason and I couldn't see any data dependency.
Patch below applies cleanly to 2.6.30-rc2.

Later, I suspected the code worked only because no drivers would be
loaded/ready until much later in the system initialization sequence.

Tested "LBA" code on J6000 (32-bit) and A500 (64-bit SMP) with 2.6.30-rc2.
Not tested with any Dino controllers.
Not tested with PCI-PCI Bridge (TBD).

Reported-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: fix ldcw inline assembler
Helge Deller [Thu, 30 Apr 2009 21:39:45 +0000 (21:39 +0000)]
parisc: fix ldcw inline assembler

There are two reasons to expose the memory *a in the asm:

1) To prevent the compiler from discarding a preceeding write to *a, and
2) to prevent it from caching *a in a register over the asm.

The change has had a few days testing with a SMP build of 2.6.22.19
running on a rp3440.

This patch is about the correctness of the __ldcw() macro itself.
The use of the macro should be confined to small inline functions
to try to limit the effect of clobbering memory on GCC's optimization
of loads and stores.

Signed-off-by: Dave Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: kill WARN in free_initmem when DEBUG_KERNEL
Kyle McMartin [Sun, 5 Apr 2009 02:53:47 +0000 (02:53 +0000)]
parisc: kill WARN in free_initmem when DEBUG_KERNEL

Doing an IPI with local interrupts off triggers a warning. We
don't need to be quite so ridiculously paranoid. Also, clean up
a bit of the code a little.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: Remove casts from atomic macros
Bastian Blank [Sat, 4 Apr 2009 20:54:26 +0000 (20:54 +0000)]
parisc: Remove casts from atomic macros

The atomic operations on parisc are defined as macros. The macros
includes casts which disallows the use of some syntax elements and
produces error like this:

net/phonet/pep.c: In function 'pipe_rcv_status':
net/phonet/pep.c:262: error: lvalue required as left operand of assignment

The patch removes this superfluous casts.

Signed-off-by: Bastian Blank <waldi@debian.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: remove CVS keywords
Alexander Beregalov [Fri, 3 Apr 2009 01:49:22 +0000 (01:49 +0000)]
parisc: remove CVS keywords

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Acked-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: ccio-dma: fix build failure without procfs
Alexander Beregalov [Fri, 3 Apr 2009 12:08:54 +0000 (12:08 +0000)]
parisc: ccio-dma: fix build failure without procfs

Fix this build error when CONFIG_PROC_FS is not set:
drivers/parisc/ccio-dma.c:1574: error: 'ccio_proc_info_fops' undeclared

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: stifb: should depend on STI_CONSOLE
Alexander Beregalov [Fri, 3 Apr 2009 13:33:32 +0000 (13:33 +0000)]
parisc: stifb: should depend on STI_CONSOLE

Fix this build error when CONFIG_STI_CONSOLE is not set
drivers/video/stifb.c:1337: undefined reference to `sti_get_rom'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoparisc: wire up preadv/pwritev syscalls
Kyle McMartin [Mon, 27 Apr 2009 12:29:12 +0000 (08:29 -0400)]
parisc: wire up preadv/pwritev syscalls

Generic compat handlers look appropriate, so use those.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
15 years agoMerge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
Linus Torvalds [Thu, 2 Jul 2009 23:54:07 +0000 (16:54 -0700)]
Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify

* 'for-linus' of git://git.infradead.org/users/eparis/notify:
  fs/notify/inotify: decrement user inotify count on close

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
Linus Torvalds [Thu, 2 Jul 2009 23:52:38 +0000 (16:52 -0700)]
Merge git://git./linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: fix error message formatting
  Btrfs: fix use after free in btrfs_start_workers fail path
  Btrfs: honor nodatacow/sum mount options for new files
  Btrfs: update backrefs while dropping snapshot
  Btrfs: account for space we may use in fallocate
  Btrfs: fix the file clone ioctl for preallocated extents
  Btrfs: don't log the inode in file_write while growing the file

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
Linus Torvalds [Thu, 2 Jul 2009 23:52:25 +0000 (16:52 -0700)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] cxgb3i: fix connection error when vlan is enabled
  [SCSI] FC transport: Locking fix for common-code FC pass-through patch
  [SCSI] zalon: fix oops on attach failure
  [SCSI] fnic: use DMA_BIT_MASK(nn) instead of deprecated DMA_nnBIT_MASK
  [SCSI] fnic: remove redundant BUG_ONs and fix checks on unsigned
  [SCSI] ibmvscsi: Fix module load hang

15 years agoMerge git://git.infradead.org/iommu-2.6
Linus Torvalds [Thu, 2 Jul 2009 23:51:09 +0000 (16:51 -0700)]
Merge git://git.infradead.org/iommu-2.6

* git://git.infradead.org/iommu-2.6: (38 commits)
  intel-iommu: Don't keep freeing page zero in dma_pte_free_pagetable()
  intel-iommu: Introduce first_pte_in_page() to simplify PTE-setting loops
  intel-iommu: Use cmpxchg64_local() for setting PTEs
  intel-iommu: Warn about unmatched unmap requests
  intel-iommu: Kill superfluous mapping_lock
  intel-iommu: Ensure that PTE writes are 64-bit atomic, even on i386
  intel-iommu: Make iommu=pt work on i386 too
  intel-iommu: Performance improvement for dma_pte_free_pagetable()
  intel-iommu: Don't free too much in dma_pte_free_pagetable()
  intel-iommu: dump mappings but don't die on pte already set
  intel-iommu: Combine domain_pfn_mapping() and domain_sg_mapping()
  intel-iommu: Introduce domain_sg_mapping() to speed up intel_map_sg()
  intel-iommu: Simplify __intel_alloc_iova()
  intel-iommu: Performance improvement for domain_pfn_mapping()
  intel-iommu: Performance improvement for dma_pte_clear_range()
  intel-iommu: Clean up iommu_domain_identity_map()
  intel-iommu: Remove last use of PHYSICAL_PAGE_MASK, for reserving PCI BARs
  intel-iommu: Make iommu_flush_iotlb_psi() take pfn as argument
  intel-iommu: Change aligned_size() to aligned_nrpages()
  intel-iommu: Clean up intel_map_sg(), remove domain_page_mapping()
  ...

15 years agox86: add boundary check for 32bit res before expand e820 resource to alignment
Yinghai Lu [Wed, 1 Jul 2009 19:32:18 +0000 (12:32 -0700)]
x86: add boundary check for 32bit res before expand e820 resource to alignment

fix hang with HIGHMEM_64G and 32bit resource.  According to hpa and
Linus, use (resource_size_t)-1 to fend off big ranges.

Analyzed by hpa

Reported-and-tested-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agox86: fix power-of-2 round_up/round_down macros
Linus Torvalds [Thu, 2 Jul 2009 19:05:10 +0000 (12:05 -0700)]
x86: fix power-of-2 round_up/round_down macros

These macros had two bugs:
 - the type of the mask was not correctly expanded to the full size of
   the argument being expanded, resulting in possible loss of high bits
   when mixing types.
 - the alignment argument was evaluated twice, despite the macro looking
   like a fancy function (but it really does need to be a macro, since
   it works on arbitrary integer types)

Noticed by Peter Anvin, and with a fix that is a modification of his
suggestion (bug noticed by Yinghai Lu).

Cc: Peter Anvin <hpa@zytor.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoBtrfs: fix error message formatting
Hu Tao [Thu, 2 Jul 2009 17:55:45 +0000 (13:55 -0400)]
Btrfs: fix error message formatting

Make an error msg look nicer by inserting a space between number and word.

Signed-off-by: Hu Tao <hu.taoo@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: fix use after free in btrfs_start_workers fail path
Jiri Slaby [Thu, 2 Jul 2009 17:50:58 +0000 (13:50 -0400)]
Btrfs: fix use after free in btrfs_start_workers fail path

worker memory is already freed on one fail path in btrfs_start_workers,
but is still dereferenced. Switch the dereference and kfree.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: honor nodatacow/sum mount options for new files
Chris Mason [Thu, 2 Jul 2009 16:26:06 +0000 (12:26 -0400)]
Btrfs: honor nodatacow/sum mount options for new files

The btrfs attr patches unconditionally inherited the inode flags field
without honoring nodatacow and nodatasum.  This fix makes sure
we properly record the nodatacow/sum mount options in new inodes.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: update backrefs while dropping snapshot
Yan Zheng [Sun, 28 Jun 2009 01:07:35 +0000 (21:07 -0400)]
Btrfs: update backrefs while dropping snapshot

The new backref format has restriction on type of backref item.  If a tree
block isn't referenced by its owner tree, full backrefs must be used for the
pointers in it. When a tree block loses its owner tree's reference, backrefs
for the pointers in it should be updated to full backrefs. Current
btrfs_drop_snapshot misses the code that updates backrefs, so it's unsafe for
general use.

This patch adds backrefs update code to btrfs_drop_snapshot.  It isn't a
problem in the restricted form btrfs_drop_snapshot is used today, but for
general snapshot deletion this update is required.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: account for space we may use in fallocate
Josef Bacik [Sun, 28 Jun 2009 01:07:34 +0000 (21:07 -0400)]
Btrfs: account for space we may use in fallocate

Using Eric Sandeen's xfstest for fallocate, you can easily trigger a ENOSPC
panic on btrfs.  This is because we do not account for data we may use when
doing the fallocate.  This patch fixes the problem by properly reserving space,
and then just freeing it when we are done.  The reservation stuff was made with
delalloc in mind, so its a little crude for this case, but it keeps the box
from panicing.

Signed-off-by: Josef Bacik <jbacik@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: fix the file clone ioctl for preallocated extents
Chris Mason [Sun, 28 Jun 2009 01:07:03 +0000 (21:07 -0400)]
Btrfs: fix the file clone ioctl for preallocated extents

15 years agoBtrfs: don't log the inode in file_write while growing the file
Chris Mason [Sun, 28 Jun 2009 01:06:22 +0000 (21:06 -0400)]
Btrfs: don't log the inode in file_write while growing the file

15 years agoMerge branch 'fix/oxygen' into for-linus
Takashi Iwai [Thu, 2 Jul 2009 15:48:34 +0000 (17:48 +0200)]
Merge branch 'fix/oxygen' into for-linus

* fix/oxygen:
  sound: virtuoso: fix Xonar D1/DX silence after resume

15 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Thu, 2 Jul 2009 15:48:33 +0000 (17:48 +0200)]
Merge branch 'fix/hda' into for-linus

* fix/hda:
  ALSA: hda - Add quirk for HP 6930p
  ALSA: hda - Add missing static to patch_ca0110()

15 years agoMerge branch 'fix/caiaq' into for-linus
Takashi Iwai [Thu, 2 Jul 2009 15:48:32 +0000 (17:48 +0200)]
Merge branch 'fix/caiaq' into for-linus

* fix/caiaq:
  ALSA: usx2y - reparent sound device
  ALSA: snd_usb_caiaq: reparent sound device

15 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Thu, 2 Jul 2009 15:48:31 +0000 (17:48 +0200)]
Merge branch 'fix/asoc' into for-linus

* fix/asoc:
  ASoC: Only disable pxa2xx-i2s clocks if we enabled them
  ASoC: OMAP: fix OMAP1510 broken PCM pointer callback
  ASoC: remove BROKEN from Efika and pcm030 fabric drivers
  ASoC: Fix typo in MPC5200 PSC AC97 driver Kconfig

15 years agofs/notify/inotify: decrement user inotify count on close
Keith Packard [Thu, 2 Jul 2009 04:56:38 +0000 (21:56 -0700)]
fs/notify/inotify: decrement user inotify count on close

The per-user inotify_devs value is incremented each time a new file is
allocated, but never decremented. This led to inotify_init failing after a
limited number of calls.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
15 years agointel-iommu: Don't keep freeing page zero in dma_pte_free_pagetable()
David Woodhouse [Thu, 2 Jul 2009 11:02:34 +0000 (12:02 +0100)]
intel-iommu: Don't keep freeing page zero in dma_pte_free_pagetable()

Check dma_pte_present() and only free the page if there _is_ one.
Kind of surprising that there was no warning about this.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
15 years agointel-iommu: Introduce first_pte_in_page() to simplify PTE-setting loops
David Woodhouse [Thu, 2 Jul 2009 10:21:16 +0000 (11:21 +0100)]
intel-iommu: Introduce first_pte_in_page() to simplify PTE-setting loops

On Wed, 2009-07-01 at 16:59 -0700, Linus Torvalds wrote:
> I also _really_ hate how you do
>
>         (unsigned long)pte >> VTD_PAGE_SHIFT ==
>         (unsigned long)first_pte >> VTD_PAGE_SHIFT

Kill this, in favour of just looking to see if the incremented pte
pointer has 'wrapped' onto the next page. Which means we have to check
it _after_ incrementing it, not before.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
15 years agoALSA: usx2y - reparent sound device
Takashi Iwai [Thu, 2 Jul 2009 09:51:44 +0000 (11:51 +0200)]
ALSA: usx2y - reparent sound device

Fix the parent device to be the USB interface, not the USB device.
A similiar commit like 563c2bf59d392357bcc1d99642933cc88c687964.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: snd_usb_caiaq: reparent sound device
Daniel Mack [Thu, 2 Jul 2009 08:46:35 +0000 (10:46 +0200)]
ALSA: snd_usb_caiaq: reparent sound device

The sound device instance needs to be a child of the USB interface, not
the USB device. Newer udev versions pay attention to that.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Reported-by: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agosound: virtuoso: fix Xonar D1/DX silence after resume
Clemens Ladisch [Thu, 2 Jul 2009 06:31:30 +0000 (08:31 +0200)]
sound: virtuoso: fix Xonar D1/DX silence after resume

When resuming, we better take the DACs out of the reset state before
trying to use them.

Reference: kernel bug #13599
http://bugzilla.kernel.org/show_bug.cgi?id=13599

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoFRV: Add basic performance counter support
David Howells [Wed, 1 Jul 2009 23:46:21 +0000 (00:46 +0100)]
FRV: Add basic performance counter support

Add basic performance counter support to the FRV arch.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoFRV: Implement atomic64_t
David Howells [Wed, 1 Jul 2009 23:46:16 +0000 (00:46 +0100)]
FRV: Implement atomic64_t

Implement atomic64_t and its ops for FRV.  Tested with the following patch:

diff --git a/arch/frv/kernel/setup.c b/arch/frv/kernel/setup.c
index 55e4fab..086d50d 100644
--- a/arch/frv/kernel/setup.c
+++ b/arch/frv/kernel/setup.c
@@ -746,6 +746,52 @@ static void __init parse_cmdline_early(char *cmdline)

 } /* end parse_cmdline_early() */

+static atomic64_t xxx;
+
+static void test_atomic64(void)
+{
+ atomic64_set(&xxx, 0x12300000023LL);
+
+ mb();
+ BUG_ON(atomic64_read(&xxx) != 0x12300000023LL);
+ mb();
+ if (atomic64_inc_return(&xxx) != 0x12300000024LL)
+ BUG();
+ mb();
+ BUG_ON(atomic64_read(&xxx) != 0x12300000024LL);
+ mb();
+ if (atomic64_sub_return(0x36900000050LL, &xxx) != -0x2460000002cLL)
+ BUG();
+ mb();
+ BUG_ON(atomic64_read(&xxx) != -0x2460000002cLL);
+ mb();
+ if (atomic64_dec_return(&xxx) != -0x2460000002dLL)
+ BUG();
+ mb();
+ BUG_ON(atomic64_read(&xxx) != -0x2460000002dLL);
+ mb();
+ if (atomic64_add_return(0x36800000001LL, &xxx) != 0x121ffffffd4LL)
+ BUG();
+ mb();
+ BUG_ON(atomic64_read(&xxx) != 0x121ffffffd4LL);
+ mb();
+ if (atomic64_cmpxchg(&xxx, 0x123456789abcdefLL, 0x121ffffffd4LL) != 0x121ffffffd4LL)
+ BUG();
+ mb();
+ BUG_ON(atomic64_read(&xxx) != 0x121ffffffd4LL);
+ mb();
+ if (atomic64_cmpxchg(&xxx, 0x121ffffffd4LL, 0x123456789abcdefLL) != 0x121ffffffd4LL)
+ BUG();
+ mb();
+ BUG_ON(atomic64_read(&xxx) != 0x123456789abcdefLL);
+ mb();
+ if (atomic64_xchg(&xxx, 0xabcdef123456789LL) != 0x123456789abcdefLL)
+ BUG();
+ mb();
+ BUG_ON(atomic64_read(&xxx) != 0xabcdef123456789LL);
+ mb();
+}
+
 /*****************************************************************************/
 /*
  *
@@ -845,6 +891,8 @@ void __init setup_arch(char **cmdline_p)
 // asm volatile("movgs %0,timerd" :: "r"(10000000));
 // __set_HSR(0, __get_HSR(0) | HSR0_ETMD);

+ test_atomic64();
+
 } /* end setup_arch() */

 #if 0

Note that this doesn't cover all the trivial wrappers, but does cover all the
substantial implementations.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>