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179746 commits

Author SHA1 Message Date
Alan Cox eeec32a731 nozomi: quick fix for the close/close bug
Nozomi goes wrong if you get the sequence

	open
	open
	close

	[stuff]
	close

which turns out to occur on some ppp type setups.

This is a quick patch up for the problem. It's not really fixing Nozomi
which completely fails to implement tty open/close semantics and all the
other needed stuff. Doing it right is a rather more invasive patch set and
not one that will backport.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-01-20 15:03:27 -08:00
Atsushi Nemoto 3f00171125 compat_ioctl: Supress "unknown cmd" message on serial /dev/console
After the commit fb07a5f8 ("compat_ioctl: remove all VT ioctl
handling"), I got this error message on 64-bit mips kernel with 32-bit
busybox userland:

ioctl32(init:1): Unknown cmd fd(0) cmd(00005600){t:'V';sz:0} arg(7fd76480) on /dev/console

The cmd 5600 is VT_OPENQRY.  The busybox's init issues this ioctl to
know vt-console or serial-console.  If the console was serial console,
VT ioctls are not handled by the serial driver.

And by quick search, I found some programs using VT_GETMODE to check
vt-console is available or not.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-01-20 15:03:26 -08:00
Greg Kroah-Hartman bd796671f0 Revert "sysdev: fix prototype for memory_sysdev_class show/store functions"
This reverts commit 8ff410daa0

It should not have been sent to Linus's tree yet, as it depends
on changes that are queued up in my driver-core for the .34 kernel
merge.

Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: "Zheng, Shaohui" <shaohui.zheng@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-01-20 15:02:13 -08:00
Heiko Carstens f776c5ec46 driver-core: fix devtmpfs crash on s390
On Mon, Jan 18, 2010 at 05:26:20PM +0530, Sachin Sant wrote:
> Hello Heiko,
>
> Today while trying to boot next-20100118 i came across
> the following Oops :
>
> Brought up 4 CPUs
> Unable to handle kernel pointer dereference at virtual kernel address 0000000000
> 543000
> Oops: 0004 #1 SMP
> Modules linked in:
> CPU: 0 Not tainted 2.6.33-rc4-autotest-next-20100118-5-default #1
> Process swapper (pid: 1, task: 00000000fd792038, ksp: 00000000fd797a30)
> Krnl PSW : 0704200180000000 00000000001eb0b8 (shmem_parse_options+0xc0/0x328)
>           R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3
> Krnl GPRS: 000000000054388a 000000000000003d 0000000000543836 000000000000003d
>           0000000000000000 0000000000483f28 0000000000536112 00000000fd797d00
>           00000000fd4ba100 0000000000000100 0000000000483978 0000000000543832
>           0000000000000000 0000000000465958 00000000001eb0b0 00000000fd797c58
> Krnl Code: 00000000001eb0aa: c0e5000994f1       brasl   %r14,31da8c
>           00000000001eb0b0: b9020022           ltgr    %r2,%r2
>           00000000001eb0b4: a784010b           brc     8,1eb2ca
>          >00000000001eb0b8: 92002000           mvi     0(%r2),0
>           00000000001eb0bc: a7080000           lhi     %r0,0
>           00000000001eb0c0: 41902001           la      %r9,1(%r2)
>           00000000001eb0c4: b9040016           lgr     %r1,%r6
>           00000000001eb0c8: b904002b           lgr     %r2,%r11
> Call Trace:
> (<00000000fd797c50> 0xfd797c50)
> <00000000001eb5da> shmem_fill_super+0x13a/0x25c
> <0000000000228cfa> get_sb_single+0xbe/0xdc
> <000000000034ffc0> dev_get_sb+0x2c/0x38
> <000000000066c602> devtmpfs_init+0x46/0xc0
> <000000000066c53e> driver_init+0x22/0x60
> <000000000064d40a> kernel_init+0x24e/0x3d0
> <000000000010a7ea> kernel_thread_starter+0x6/0xc
> <000000000010a7e4> kernel_thread_starter+0x0/0xc
>
> I never tried to boot a kernel with DEVTMPFS enabled on a s390 box.
> So am wondering if this is supported or not ? If you think this
> is supported i will send a mail to community on this.

There is nothing arch specific to devtmpfs. This part crashes because the
kernel tries to modify the data read-only section which is write protected
on s390.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-01-20 15:02:05 -08:00
Tejun Heo 534ead7092 libata: retry FS IOs even if it has failed with AC_ERR_INVALID
libata currently doesn't retry if a command fails with AC_ERR_INVALID
assuming that retrying won't get it any further even if retried.
However, a failure may be classified as invalid through hardware
glitch (incorrect reading of the error register or firmware bug) and
there isn't whole lot to gain by not retrying as actually invalid
commands will be failed immediately.  Also, commands serving FS IOs
are extremely unlikely to be invalid.  Retry FS IOs even if it's
marked invalid.

Transient and incorrect invalid failure was seen while debugging
firmware related issue on Samsung n130 on bko#14314.

  http://bugzilla.kernel.org/show_bug.cgi?id=14314

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-01-20 14:25:11 -05:00
Len Brown 418521deef Merge branch 'bugzilla-14954' into release 2010-01-20 01:26:22 -05:00
Len Brown be6066f34c Merge branch 'misc' into release 2010-01-20 01:23:27 -05:00
Len Brown b4cdd6ac4f Merge branch 'osc-bugfix' into release 2010-01-20 01:23:18 -05:00
Len Brown 2984397a02 Merge branch 'eeepc-laptop' into release 2010-01-20 01:23:01 -05:00
Len Brown b07f07e0c2 Merge branch 'ec' into release 2010-01-20 01:20:36 -05:00
Pekka Enberg b00eca8cd6 perf kmem: Print usage help for unknown commands
This patch fixes "perf kmem" to print usage help instead of
doing nothing.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
LKML-Reference: <1263921971-10782-1-git-send-email-penberg@cs.helsinki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-20 07:20:08 +01:00
Pekka Enberg 47103277f8 perf kmem: Increase "Hit" column length
It's fairly easy to overflow the "Hit" column with just few
seconds of tracing so increase the column length to avoid broken
formatting.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
LKML-Reference: <1263921803-10214-1-git-send-email-penberg@cs.helsinki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-20 07:20:07 +01:00
Len Brown 361243fd62 Merge branch 'bugzilla-15064' into release 2010-01-20 01:15:21 -05:00
Len Brown 49897deeea Merge branch 'bugzilla-14858' into release 2010-01-20 01:14:57 -05:00
Len Brown 378fa825f6 Merge branch 'bugzilla-14483' into release 2010-01-20 01:14:50 -05:00
Len Brown 093e2961fe Merge branch 'bugzilla-13577-video' into release 2010-01-20 01:14:41 -05:00
Len Brown 9c6a6b3cbc Merge branch 'acpi-pad' into release 2010-01-20 01:14:30 -05:00
Len Brown d22edd293f ACPI: delete acpi_processor_power_verify_c2()
no functional change -- cleanup only.

acpi_processor_power_verify_c2() was nearly empty due to a previous patch,
so expand its remains into its one caller and delete it.

Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-20 00:54:15 -05:00
Len Brown a6d72c189f ACPI: allow C3 > 1000usec
Do for C3 what the previous patch did for C2.

The C2 patch was in response to a highly visible
and multiply reported C-state/turbo failure,
while this change has no bug report in-hand.

This will enable C3 in Linux on systems where BIOS
overstates C3 latency in _CST.  It will also enable
future systems which may actually have C3 > 1000usec.

Linux has always ignored ACPI BIOS C3 with exit latency > 1000 usec,
and the ACPI spec is clear that is correct FADT-supplied C3.

However, the ACPI spec explicitly states that _CST-supplied C-states
have no latency limits.

So move the 1000usec C3 test out of the code shared
by FADT and _CST code-paths, and into the FADT-specific path.

Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-20 00:54:15 -05:00
Len Brown 5d76b6f6c1 ACPI: enable C2 and Turbo-mode on Nehalem notebooks on A/C
Linux has always ignored ACPI BIOS C2 with exit latency > 100 usec,
and the ACPI spec is clear that is correct FADT-supplied C2.

However, the ACPI spec explicitly states that _CST-supplied C-states
have no latency limits.

So move the 100usec C2 test out of the code shared
by FADT and _CST code-paths, and into the FADT-specific path.

This bug has not been visible until Nehalem, which advertises
a CPU-C2 worst case exit latency on servers of 205usec.
That (incorrect) figure is being used by BIOS writers
on mobile Nehalem systems for the AC configuration.
Thus, Linux ignores C2 leaving just C1, which is
saves less power, and also impacts performance
by preventing the use of turbo mode.

http://bugzilla.kernel.org/show_bug.cgi?id=15064

Tested-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-20 00:54:01 -05:00
Darren Jenkins 7f07a605a3 ACPI: power_meter: remove double kfree()
resource->domain_devices can be double kfree()'d in a couple of places.
Fix this by setting num_domain_devices = 0 after the kfree().

Coverity CID: 13356, 13355, 13354

Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com>
Acked-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-19 23:56:02 -05:00
Alex Chiang 2205cbe8ec ACPI: processor: restrict early _PDC to opt-in platforms
Commit 78f1699 (ACPI: processor: call _PDC early) blindly walks
the namespace and calls _PDC on every processor object it finds.

This change may cause issues on platforms that declare dummy
values for SSDTs on non-present processors (disabled in MADT).
When we call _PDC and dynamically attempt to execute the AML
Load() op on these dummy SSDTs, there's no telling what might
happen.

Rather than finding every platform that has bogus SSDTs, restrict
early _PDC calls to platforms that are known to need early
evaluation of _PDC.

This is a minimal, temporary fix (given the context of the
current release cycle). A real solution of checking the MADT for
non-present processors will be written for the next merge window.

References:

	http://bugzilla.kernel.org/show_bug.cgi?id=14710
	http://bugzilla.kernel.org/show_bug.cgi?id=14954

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-19 23:43:47 -05:00
Dan Carpenter ece550f51b ecryptfs: use after free
The "full_alg_name" variable is used on a couple error paths, so we
shouldn't free it until the end.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:36:06 -06:00
Julia Lawall 4aa25bcb7d ecryptfs: Eliminate useless code
The variable lower_dentry is initialized twice to the same (side effect-free)
expression.  Drop one initialization.

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

// <smpl>
@forall@
idexpression *x;
identifier f!=ERR_PTR;
@@

x = f(...)
... when != x
(
x = f(...,<+...x...+>,...)
|
* x = f(...)
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:36:05 -06:00
Erez Zadok fe0fc013cd ecryptfs: fix interpose/interpolate typos in comments
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Acked-by: Dustin Kirkland <kirkland@canonical.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:36:03 -06:00
Erez Zadok 3469b57329 ecryptfs: pass matching flags to interpose as defined and used there
ecryptfs_interpose checks if one of the flags passed is
ECRYPTFS_INTERPOSE_FLAG_D_ADD, defined as 0x00000001 in ecryptfs_kernel.h.
But the only user of ecryptfs_interpose to pass a non-zero flag to it, has
hard-coded the value as "1". This could spell trouble if any of these values
changes in the future.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Cc: Dustin Kirkland <kirkland@canonical.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:36:02 -06:00
Erez Zadok c44a66d674 ecryptfs: remove unnecessary d_drop calls in ecryptfs_link
Unnecessary because it would unhash perfectly valid dentries, causing them
to have to be re-looked up the next time they're needed, which presumably is
right after.

Signed-off-by: Aseem Rastogi <arastogi@cs.sunysb.edu>
Signed-off-by: Shrikar archak <shrikar84@gmail.com>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Cc: Saumitra Bhanage <sbhanage@cs.sunysb.edu>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:36:00 -06:00
Erez Zadok 0d132f7364 ecryptfs: don't ignore return value from lock_rename
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Cc: Dustin Kirkland <kirkland@canonical.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:35:59 -06:00
Erez Zadok e27759d7a3 ecryptfs: initialize private persistent file before dereferencing pointer
Ecryptfs_open dereferences a pointer to the private lower file (the one
stored in the ecryptfs inode), without checking if the pointer is NULL.
Right afterward, it initializes that pointer if it is NULL.  Swap order of
statements to first initialize.  Bug discovered by Duckjin Kang.

Signed-off-by: Duckjin Kang <fromdj2k@gmail.com>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Cc: Dustin Kirkland <kirkland@canonical.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:32:54 -06:00
Tyler Hicks 38e3eaeedc eCryptfs: Remove mmap from directory operations
Adrian reported that mkfontscale didn't work inside of eCryptfs mounts.
Strace revealed the following:

open("./", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
fcntl64(3, F_GETFD) = 0x1 (flags FD_CLOEXEC)
open("./fonts.scale", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 4
getdents(3, /* 80 entries */, 32768) = 2304
open("./.", O_RDONLY) = 5
fcntl64(5, F_SETFD, FD_CLOEXEC) = 0
fstat64(5, {st_mode=S_IFDIR|0755, st_size=16384, ...}) = 0
mmap2(NULL, 16384, PROT_READ, MAP_PRIVATE, 5, 0) = 0xb7fcf000
close(5) = 0
--- SIGBUS (Bus error) @ 0 (0) ---
+++ killed by SIGBUS +++

The mmap2() on a directory was successful, resulting in a SIGBUS
signal later.  This patch removes mmap() from the list of possible
ecryptfs_dir_fops so that mmap() isn't possible on eCryptfs directory
files.

https://bugs.launchpad.net/ecryptfs/+bug/400443

Reported-by: Adrian C. <anrxc@sysphere.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:32:11 -06:00
Tyler Hicks f8f484d1b6 eCryptfs: Add getattr function
The i_blocks field of an eCryptfs inode cannot be trusted, but
generic_fillattr() uses it to instantiate the blocks field of a stat()
syscall when a filesystem doesn't implement its own getattr().  Users
have noticed that the output of du is incorrect on newly created files.

This patch creates ecryptfs_getattr() which calls into the lower
filesystem's getattr() so that eCryptfs can use its kstat.blocks value
after calling generic_fillattr().  It is important to note that the
block count includes the eCryptfs metadata stored in the beginning of
the lower file plus any padding used to fill an extent before
encryption.

https://bugs.launchpad.net/ecryptfs/+bug/390833

Reported-by: Dominic Sacré <dominic.sacre@gmx.de>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:32:09 -06:00
Tyler Hicks 5f3ef64f4d eCryptfs: Use notify_change for truncating lower inodes
When truncating inodes in the lower filesystem, eCryptfs directly
invoked vmtruncate(). As Christoph Hellwig pointed out, vmtruncate() is
a filesystem helper function, but filesystems may need to do more than
just a call to vmtruncate().

This patch moves the lower inode truncation out of ecryptfs_truncate()
and renames the function to truncate_upper().  truncate_upper() updates
an iattr for the lower inode to indicate if the lower inode needs to be
truncated upon return.  ecryptfs_setattr() then calls notify_change(),
using the updated iattr for the lower inode, to complete the truncation.

For eCryptfs functions needing to truncate, ecryptfs_truncate() is
reintroduced as a simple way to truncate the upper inode to a specified
size and then truncate the lower inode accordingly.

https://bugs.launchpad.net/bugs/451368

Reported-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dustin Kirkland <kirkland@canonical.com>
Cc: ecryptfs-devel@lists.launchpad.net
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-01-19 22:32:07 -06:00
Tony Lindgren 2045124ffd ARM: 5888/1: arm: Update comments in cacheflush.h and remove unnecessary V6 and V7 comments
The comments in cacheflush.h should follow what's in
struct cpu_cache_fns. The comments for V6 and V7 are
unnecessary.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-19 23:11:56 +00:00
Tony Lindgren 1f667c690b ARM: 5886/1: arm: Fix cpu_proc_fin() for proc-v7.S and make kexec work
The comments in arm_machine_restart() suggest that cpu_proc_fin()
will clean and disable cache and turn off interrupts. This does
not seem to be implemented for proc-v7.S, implement it the same
way as for proc-v6.S.

This also makes kexec work for v7. Note that a related TLB and
branch traget flush patch is also needed to avoid kexec
"crc error".

Note that there are still some issues that seem to be related
to L2 cache being on and causing occasional uncompress "crc error"
with kexec. Anyways, this gets kexec mostly working on V7 for now.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-19 20:23:17 +00:00
Tony Lindgren ad3e6c0b1f ARM: 5885/1: arm: Flush TLB entries in setup_mm_for_reboot()
We need to do that if we tinker with the MMU entries.

This fixes the occasional bug with kexec where the new
fails to uncompress with "crc error". Most likely at
least kexec on v6 and v7 need this fix.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-19 20:23:17 +00:00
Tony Lindgren 200b7a8dc0 ARM: 5884/1: arm: Fix DCC console for v7
Without this patch arch/arm/compressed/head.S defaults to generic
DCC code that does not work for v7.

For more information on the v7 DCC, see Cortex-A8 TRM
"12.11.1 Debug communications channel".

To use it with post 2.6.33-rc1 or later, you need to have:

CONFIG_DEBUG_LL=y
ONFIG_DEBUG_ICEDCC=y
CONFIG_EARLY_PRINTK=y

Earlier kernels need commit 93fd03a8c6
backported.

Tested on omap3430.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-19 20:23:16 +00:00
Thiago Farina f06f135d86 fs/bio.c: fix shadows sparse warning
fs/bio.c:81:33: warning: symbol 'bslab' shadows an earlier one
fs/bio.c:74:25: originally declared here

Signed-off-by: Thiago Farina <tfransosi@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-01-19 14:07:09 +01:00
Paul Mundt 79f211b8e1 sh64: wire up sys_accept4.
sh64 on the other hand provides both direct broken out syscalls as well
as socketcall access. As there are binaries that use both socketcall has
to stay around. The current ABI prefers direct syscalls.

It was pointed out that when sys_recvmmsg was added in, sys_accept4 was
overlooked. This takes care of wiring it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-19 17:00:31 +09:00
Paul Mundt 6eacb2c4cb sh: unwire sys_recvmmsg.
sh32 at the moment only uses sys_socketcall to reach these, so unwire
recvmmsg for now. While we're at it, add it to the ignore list, as per
the s390 change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-19 17:00:06 +09:00
Linus Torvalds 24bc7347da Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] iTCO_wdt: Add Intel Cougar Point and PCH DeviceIDs
2010-01-18 14:20:15 -08:00
Suresh Siddha bb668da6d6 x86, apic: use logical flat for systems with <= 8 logical cpus
We can use logical flat mode if there are <= 8 logical cpu's
(irrespective of physical apic id values).  This will enable simplified
and efficient IPI and device interrupt routing on such platforms.

This has been tested to work on both Intel and AMD platforms.
Exceptions like IBM summit platform which can't use logical flat mode
are addressed by using OEM platform checks.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Chris McDermott <lcm@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-18 14:15:28 -08:00
Suresh Siddha dfea91d5a7 x86, apic: use physical mode for IBM summit platforms
Chris McDermott from IBM confirmed that hurricane chipset in IBM summit
platforms doesn't support logical flat mode.  Irrespective of the other
things like apic_id's, total number of logical cpu's, Linux kernel
should default to physical mode for this system.

The 32-bit kernel does so using the OEM checks for the IBM summit
platform.  Add a similar OEM platform check for the 64bit kernel too.

Otherwise the linux kernel boot can hang on this platform under certain
bios/platform settings.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Tested-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Chris McDermott <lcm@linux.vnet.ibm.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-18 14:15:27 -08:00
Linus Torvalds 54ef91dcf0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: Remove warning message for invalid OSS minor ranges
  ALSA: hda - Fix capture on Sony VAIO with single input
  ALSA: hda - Fix mute led GPIO on HP dv-series notebooks
  ALSA: use subsys_initcall for sound core instead of module_init
  ALSA: hda - Fix missing capture mixer for ALC861/660 codecs
  ALSA: hda - Improved MacBook (Pro) 5,1 / 5,2 support
  ALSA: hda - Fix Toshiba NB20x quirk entry
2010-01-18 14:13:17 -08:00
Linus Torvalds 91302873ba Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: pci_controller->arch_data really is a struct device_node *
  microblaze: Add missing double apostrophe in Kconfig
  microblaze: Add PT_ macros for special purpose regs
  microblaze: Enable accept4 syscall
  microblaze: Wire up recvmmsg syscall
2010-01-18 14:12:42 -08:00
Linus Torvalds fe64454d7b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
  mfd: Unlock mc13783 before subsystems initialisation, at probe time.
  mfd: WM835x GPIO direction register is not locked
  mfd: tmio_mmc hardware abstraction for CNF area
  mfd: WM8350 off by one bug
  mfd: Correct WM835x ISINK ramp time defines
2010-01-18 14:11:26 -08:00
Linus Torvalds 8888be69ad Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Move cpu hotplug driver lock from pseries to powerpc
  powerpc: Move /proc/ppc64 to /proc/powerpc update
  powerpc/8xx: Fix user space TLB walk in dcbX fixup
  powerpc: Fix decrementer setup on 1GHz boards
  powerpc/iseries: Initialise on-stack completion
  powerpc/hvc: Driver build breaks with !HVC_CONSOLE
  serial/pmac_zilog: Workaround problem due to interrupt on closed port
  powerpc/macintosh: Make Open Firmware device id constant
  powerpc: Use helpers for rlimits
  powerpc: cpumask_of_node() should handle -1 as a node
  powerpc/pseries: Fix dlpar compile warning without CONFIG_PROC_DEVICETREE
  powerpc/pseries: Fix xics interrupt affinity
  powerpc/swsusp_32: Fix TLB invalidation
  powerpc/8xx: Always pin kernel instruction TLB
  powerpc: 2.6.33 update of defconfigs for embedded 6xx/7xxx, 8xx, 8xxx
  powerpc: Use scripts/mkuboot.sh instead of 'mkimage'
  powerpc/5200: update defconfigs
2010-01-18 14:08:55 -08:00
Linus Torvalds 1e868d8e6d Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: xfs_swap_extents needs to handle dynamic fork offsets
  xfs: fix missing error check in xfs_rtfree_range
  xfs: fix stale inode flush avoidance
  xfs: Remove inode iolock held check during allocation
  xfs: reclaim all inodes by background tree walks
  xfs: Avoid inodes in reclaim when flushing from inode cache
  xfs: reclaim inodes under a write lock
2010-01-18 14:08:07 -08:00
Linus Torvalds 2faae42233 Merge branch 'mantis' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'mantis' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (117 commits)
  V4L/DVB (13851): Fix Input dependency for Mantis
  V4L/DVB(13824a): mantis: Fix __devexit bad annotations
  V4L/DVB (13808b): mantis: replace DMA_nnBIT_MASK to DMA_BIT_MASK(32)
  V4L/DVB (13808): [Mantis/Hopper] Build update for Mantis/Hopper based cards
  V4L/DVB(13808a): mantis: convert it to the new ir-core register/unregister functions
  V4L/DVB (13812): [Mantis/Hopper] Update Copyright header
  V4L/DVB (13811): [MB86A16] Update Copyright header
  V4L/DVB (13810): [MB86A16] Use DVB_* macros
  V4L/DVB (13809): Fix Checkpatch violations
  V4L/DVB (13807): Fix: Free device in the device registration failure case
  V4L/DVB (13806): Register and Initialize Remote control
  V4L/DVB (13805): Fix: Unregister the frontend before detaching
  V4L/DVB (13804): Remove unused I2C Adapter ID
  V4L/DVB (13803): Remove unused dependency on CU1216
  V4L/DVB (13802): [Mantis/Hopper] Fix all build related warnings
  V4L/DVB (13801): [MB86A16] Use the search callback
  V4L/DVB (13800): [Mantis] I2C optimization. Required delay is much lesser than 1mS.
  V4L/DVB (13799): [Mantis] Unregister frontend
  V4L/DVB (13798): [Mantis] Enable power for all cards, use byte mode only on relevant devices
  V4L/DVB (13797): [Mantis/Hopper/TDA665x] Large overhaul,
  ...
2010-01-18 14:07:07 -08:00
Linus Torvalds 630ca048ce Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (23 commits)
  V4L/DVB (13966): DVB-T regression fix for saa7134 cards
  V4L/DVB (13955): cx25821: fix double unlock in medusa_video_init()
  MAINTAINERS: ivtv-devel is moderated
  MAINTAINERS: Andy Walls is the new ivtv maintainer
  V4L/DVB (13941): rj54n1cb0c: remove compiler warning
  V4L/DVB sh_mobile_ceu: don't check platform_get_irq's return value against zero
  V4L/DVB mx1_camera: don't check platform_get_irq's return value against zero
  V4L/DVB (13934): tda8290: Fix FM radio easy programming standard selection for TDA8295
  V4L/DVB (13900): gspca - sunplus: Fix bridge exchanges.
  V4L/DVB (13887): tda8290: add autodetection support for TDA8295c2
  V4L/DVB (13882): gspca - stv06xx-vv6410: Ensure register STV_SCAN_RATE is zero
  V4L/DVB (13880): gspca - m5602-s5k4aa: Add vflip quirk for the Amilo Xi 2428
  V4L/DVB (13875): gspca - vc032x: Fix a possible crash with the vc0321 bridge.
  V4L/DVB (13868): gspca - sn9c20x: Fix test of unsigned.
  V4L/DVB (13858): ir-keytable: use the right header
  feature-removal-schedule: Add v4l1 drivers obsoleted by gspca sub drivers
  V4L/DVB (13622): gspca - ov534: Fix a compilation warning.
  V4L/DVB (13834): dib8000: fix compilation if !DVB_DIB8000
  V4L/DVB (13831): uvcvideo: Fix oops caused by a race condition in buffer dequeuing
  V4L/DVB (13829): uvcvideo: Fix alternate setting selection in isochronous mode
  ...
2010-01-18 14:06:52 -08:00
Seth Heasley 3c9d8eccd8 [WATCHDOG] iTCO_wdt: Add Intel Cougar Point and PCH DeviceIDs
This patch adds the Intel Cougar Point and PCH DeviceIDs for iTCO Watchdog.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-01-18 21:39:49 +00:00