linux-2.6
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney...
Linus Torvalds [Fri, 9 May 2008 17:34:00 +0000 (10:34 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/cooloney/blackfin-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (21 commits)
  Blackfin Serial Driver: abstract away DLAB differences into header
  Blackfin Serial Driver: macro away the IER differences between processors
  [Blackfin] arch: remove useless IRQ_SW_INT defines
  [Blackfin] arch: protect linux/usb/musb.h include until the driver gets mainlined
  [Blackfin] arch: protect linux/usb/isp1362.h include until the driver gets mainlined
  [Blackfin] arch: add EBIU supporting for BF54x EZKIT SMSC LAN911x/LAN921x families embedded ethernet driver
  [Blackfin] arch: Set spi flash partition on bf527 as like bf548.
  [Blackfin] arch: fix bug - Remove module will not free L1 memory used
  [Blackfin] arch: fix wrong header name in comment
  [Blackfin] arch: Fix BUG - spi flash on bf527 ezkit would fail at mount
  [Blackfin] arch: add twi_lcd and twi_keypad i2c board info to bf527-ezkit
  [Blackfin] arch: Add physmap partition for BF527-EZkit
  [Blackfin] arch: fix gdb testing regression
  [Blackfin] arch: disable single stepping when delivering a signal
  [Blackfin] arch: Delete unused (copied from m68k) entries in asm-offsets.c.
  [Blackfin] arch: In the double fault handler, set up the PT_RETI slot
  [Blackfin] arch: Support for CPU_FREQ and NOHZ
  [Blackfin] arch: Functional power management support: Add CPU and platform voltage scaling support
  [Blackfin] arch: fix bug -  breaking the atomic sections code.
  [Blackfin] arch: Equalize include files: Add VR_CTL masks
  ...

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Fri, 9 May 2008 15:10:09 +0000 (08:10 -0700)] 
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] fix build warning
  [CIFS] Fixed build warning in is_ip
  [CIFS] cleanup cifsd completion
  [CIFS] Remove over-indented code in find_unc().
  [CIFS] fix typo
  [CIFS] Remove duplicate call to mode_to_acl
  [CIFS] convert usage of implicit booleans to bool
  [CIFS] fixed compatibility issue with samba refferal request
  [CIFS] Fix statfs formatting
  [CIFS] Adds to dns_resolver checking if the server name is an IP addr and skipping upcall in this case.
  [CIFS] Fix spelling mistake
  [CIFS] Update cifs version number

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
Linus Torvalds [Fri, 9 May 2008 15:07:58 +0000 (08:07 -0700)] 
Merge git://git./linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (37 commits)
  SH: catch negative denormal_subf1() retval in denormal_add()
  sh: Fix DMAC base address for SH7709S
  sh: update smc91x platform data for se7206.
  sh: Stub in cpu_to_node() and friends for NUMA build.
  sh: intc register modify fix
  sh: no high level trigger on some sh3 cpus
  sh: clean up sh7710 and sh7720 intc tables
  sh: add interrupt ack code to sh3
  sh: unify external irq pin code for sh3
  sh-sci: avoid writing to nonexistent registers
  sh-sci: sh7722 lacks scsptr registers
  sh-sci: improve sh7722 support
  sh: reset hardware from early printk
  sh: drain and wait for early printk
  sh: use sci_out() for early printk
  sh: add memory resources to /proc/iomem
  sh: add kernel bss resource
  sh: fix sh7705 interrupt vector typo
  sh: update smc91x platform data for se7722
  sh: update smc91x platform data for MigoR
  ...

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Fri, 9 May 2008 15:07:21 +0000 (08:07 -0700)] 
Merge git://git./linux/kernel/git/herbert/crypto-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  [CRYPTO] hmac: Avoid calling virt_to_page on key

16 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Linus Torvalds [Fri, 9 May 2008 15:06:31 +0000 (08:06 -0700)] 
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (23 commits)
  [POWERPC] Remove leftover printk in isa-bridge.c
  [POWERPC] Remove duplicate #include
  [POWERPC] Initialize lockdep earlier
  [POWERPC] Document when printk is useable
  [POWERPC] Fix bogus paca->_current initialization
  [POWERPC] Fix of_i2c include for module compilation
  [POWERPC] Make default cputable entries reflect selected CPU family
  [POWERPC] spufs: lockdep annotations for spufs_dir_close
  [POWERPC] spufs: don't requeue victim contex in find_victim if it's not in spu_run
  [POWERPC] 4xx: Fix PCI mem in sequoia DTS
  [POWERPC] 4xx: Add endpoint support to 4xx PCIe driver
  [POWERPC] 4xx: Fix problem with new TLB storage attibute fields on 440x6 core
  [POWERPC] spufs: spu_create should send inotify IM_CREATE event
  [POWERPC] spufs: handle faults while the context switch pending flag is set
  [POWERPC] spufs: fix concurrent delivery of class 0 & 1 exceptions
  [POWERPC] spufs: try to route SPU interrupts to local node
  [POWERPC] spufs: set SPU_CONTEXT_SWITCH_PENDING before synchronising SPU irqs
  [POWERPC] spufs: don't acquire state_mutex interruptible while performing callback
  [POWERPC] spufs: update master runcntl with context lock held
  [POWERPC] spufs: fix post-stopped update of MFC_CNTL register
  ...

16 years agom32r: use generic sys_pipe
Christoph Hellwig [Fri, 9 May 2008 12:44:02 +0000 (14:44 +0200)] 
m32r: use generic sys_pipe

m32r can use the generic sys_pipe implementation.

The current sys_pipe implementation on m32r only differes from the
generic one by passing a lot of additional unused registers to sys_pipe.

Reviewed and tested by Hirokazu Takata.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agocris: kill sys_pipe implementation
Christoph Hellwig [Fri, 9 May 2008 10:41:17 +0000 (12:41 +0200)] 
cris: kill sys_pipe implementation

The cris implementation of sys_pipe only differs from the generic one
by taking the BKL before calling do_pipe which isn't not nessecary.

Just kill the cris implementation and use the generic one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 9 May 2008 15:01:19 +0000 (08:01 -0700)] 
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  sit: Add missing kfree_skb() on pskb_may_pull() failure.
  tipc: Increase buffer header to support worst-case device

16 years agomodule: don't ignore vermagic string if module doesn't have modversions
Rusty Russell [Fri, 9 May 2008 06:25:28 +0000 (16:25 +1000)] 
module: don't ignore vermagic string if module doesn't have modversions

Linus found a logic bug: we ignore the version number in a module's
vermagic string if we have CONFIG_MODVERSIONS set, but modversions
also lets through a module with no __versions section for modprobe
--force (with tainting, but still).

We should only ignore the start of the vermagic string if the module
actually *has* crcs to check.  Rather than (say) having an
entertaining hissy fit and creating a config option to work around the
buggy code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomodule: be more picky about allowing missing module versions
Rusty Russell [Fri, 9 May 2008 06:24:21 +0000 (16:24 +1000)] 
module: be more picky about allowing missing module versions

We allow missing __versions sections, because modprobe --force strips
it.  It makes less sense to allow sections where there's no version
for a specific symbol the module uses, so disallow that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomodule: put modversions in vermagic
Rusty Russell [Fri, 9 May 2008 06:23:17 +0000 (16:23 +1000)] 
module: put modversions in vermagic

Don't allow a module built without versions altogether to be inserted
into a kernel which expects modversions.

modprobe --force will strip vermagic as well as modversions, so it
won't be effected, but this will make sure that a
non-CONFIG_MODVERSIONS module won't be accidentally inserted into a
CONFIG_MODVERSIONS kernel.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoSH: catch negative denormal_subf1() retval in denormal_add()
Roel Kluin [Fri, 9 May 2008 11:05:10 +0000 (20:05 +0900)] 
SH: catch negative denormal_subf1() retval in denormal_add()

'ix' is unsigned but denormal_subf1() may return a negative int.

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years ago[POWERPC] Remove leftover printk in isa-bridge.c
Nate Case [Thu, 8 May 2008 16:41:17 +0000 (02:41 +1000)] 
[POWERPC] Remove leftover printk in isa-bridge.c

This printk() appears twice in the same function.  Only the latter one
in the inval_range: section appears to be legitimate.

Signed-off-by: Nate Case <ncase@xes-inc.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Remove duplicate #include
Huang Weiyi [Thu, 8 May 2008 13:34:29 +0000 (23:34 +1000)] 
[POWERPC] Remove duplicate #include

Remove duplicate #include of <asm/prom.h> in
arch/powerpc/kernel/btext.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Initialize lockdep earlier
Benjamin Herrenschmidt [Wed, 7 May 2008 00:25:34 +0000 (10:25 +1000)] 
[POWERPC] Initialize lockdep earlier

This moves lockdep_init() to before udbg_early_init() as the later
can call things that acquire spinlocks etc...  This also makes printk
safer to use earlier.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Document when printk is useable
Benjamin Herrenschmidt [Wed, 7 May 2008 00:00:56 +0000 (10:00 +1000)] 
[POWERPC] Document when printk is useable

When debugging early boot problems, it's common to sprinkle printk's
all over the place.  However, on 64-bit powerpc, this can lead to
memory corruption if done too early due to the PACA pointer and
lockdep core not being initialized.

This adds some comments to early_setup() that document when it is
safe to do so in order to save time for whoever has to debug that
stuff next.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix bogus paca->_current initialization
Benjamin Herrenschmidt [Wed, 7 May 2008 00:00:55 +0000 (10:00 +1000)] 
[POWERPC] Fix bogus paca->_current initialization

When doing lockdep, I had two patches to initialize paca->_current
early, one bogus, and one correct.  Unfortunately both got merged
as the bad one ended up being part of the main lockdep patch by
mistake.  This causes memory corruption at boot.  This removes
the offending code.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Fix of_i2c include for module compilation
Jochen Friedrich [Tue, 6 May 2008 18:40:01 +0000 (04:40 +1000)] 
[POWERPC] Fix of_i2c include for module compilation

Remove #ifdef CONFIG_OF_I2C as this breaks module compilation.
Drivers using this header should depend on OF_I2C anyways, so
there's no need to make this conditional.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Make default cputable entries reflect selected CPU family
Benjamin Herrenschmidt [Mon, 5 May 2008 05:22:27 +0000 (15:22 +1000)] 
[POWERPC] Make default cputable entries reflect selected CPU family

Changes the cputable so that various CPU families that have an exclusive
CONFIG_ option have a more sensible default entry to use if the specific
processor hasn't been identified.

This makes the kernel more generally useful when booted on an unknown
PVR for things like new 4xx variants.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agoMerge branch 'for-2.6.26' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer...
Paul Mackerras [Fri, 9 May 2008 10:12:06 +0000 (20:12 +1000)] 
Merge branch 'for-2.6.26' of /linux/kernel/git/jwboyer/powerpc-4xx into merge

16 years agosh: Fix DMAC base address for SH7709S
Steve Glendinning [Tue, 6 May 2008 10:36:27 +0000 (11:36 +0100)] 
sh: Fix DMAC base address for SH7709S

On SH7709S, DMAC can be found at 0xa4000020 (as with most of
the other sh3 cpu subtypes).

Split out definition of DMAC base address from definitions of
DMTE irqs.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosit: Add missing kfree_skb() on pskb_may_pull() failure.
David S. Miller [Fri, 9 May 2008 06:40:26 +0000 (23:40 -0700)] 
sit: Add missing kfree_skb() on pskb_may_pull() failure.

Noticed by Paul Marks <paul@pmarks.net>.

Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agosh: update smc91x platform data for se7206.
Paul Mundt [Fri, 9 May 2008 05:13:17 +0000 (14:13 +0900)] 
sh: update smc91x platform data for se7206.

Follows the se7722 change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agotipc: Increase buffer header to support worst-case device
Allan Stephens [Fri, 9 May 2008 04:38:24 +0000 (21:38 -0700)] 
tipc: Increase buffer header to support worst-case device

This patch increases the headroom TIPC reserves in each sk_buff
to accommodate the largest possible link level device header.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years ago[CIFS] fix build warning
Steve French [Fri, 9 May 2008 03:48:05 +0000 (03:48 +0000)] 
[CIFS] fix build warning

Signed-off-by: Steve French <sfrench@us.ibm.com>
16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 9 May 2008 02:03:26 +0000 (19:03 -0700)] 
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits)
  net: Added ASSERT_RTNL() to dev_open() and dev_close().
  can: Fix can_send() handling on dev_queue_xmit() failures
  netns: Fix arbitrary net_device-s corruptions on net_ns stop.
  netfilter: Kconfig: default DCCP/SCTP conntrack support to the protocol config values
  netfilter: nf_conntrack_sip: restrict RTP expect flushing on error to last request
  macvlan: Fix memleak on device removal/crash on module removal
  net/ipv4: correct RFC 1122 section reference in comment
  tcp FRTO: SACK variant is errorneously used with NewReno
  e1000e: don't return half-read eeprom on error
  ucc_geth: Don't use RX clock as TX clock.
  cxgb3: Use CAP_SYS_RAWIO for firmware
  pcnet32: delete non NAPI code from driver.
  fs_enet: Fix a memory leak in fs_enet_mdio_probe
  [netdrvr] eexpress: IPv6 fails - multicast problems
  3c59x: use netstats in net_device structure
  3c980-TX needs EXTRA_PREAMBLE
  fix warning in drivers/net/appletalk/cops.c
  e1000e: Add support for BM PHYs on ICH9
  uli526x: fix endianness issues in the setup frame
  uli526x: initialize the hardware prior to requesting interrupts
  ...

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Fri, 9 May 2008 02:03:19 +0000 (19:03 -0700)] 
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Fix SA_ONSTACK signal handling.

16 years agoRevert "PCI: remove default PCI expansion ROM memory allocation"
Linus Torvalds [Fri, 9 May 2008 01:41:48 +0000 (18:41 -0700)] 
Revert "PCI: remove default PCI expansion ROM memory allocation"

This reverts commit 9f8daccaa05c14e5643bdd4faf5aed9cc8e6f11e, which was
reported to break X startup (xf86-video-ati-6.8.0). See

http://bugs.freedesktop.org/show_bug.cgi?id=15523

for details.

Reported-by: Laurence Withers <l@lwithers.me.uk>
Cc: Gary Hade <garyhade@us.ibm.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jan Beulich <jbeulich@novell.com>
Cc: "Jun'ichi Nomura" <j-nomura@ce.jp.nec.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years ago[CIFS] Fixed build warning in is_ip
Igor Mammedov [Thu, 8 May 2008 20:48:42 +0000 (20:48 +0000)] 
[CIFS] Fixed build warning in is_ip

Signed-off-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux...
Linus Torvalds [Thu, 8 May 2008 18:31:07 +0000 (11:31 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/mingo/linux-2.6-sched-fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-fixes:
  sched: fix weight calculations
  semaphore: fix

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Thu, 8 May 2008 17:58:45 +0000 (10:58 -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:
  [ALSA] soc at91 minor bug fixes
  [ALSA] soc - at91-pcm - Fix line wrapping
  pcspkr: fix dependancies

16 years agoRemove duplicated include in net/sunrpc/svc.c
Huang Weiyi [Thu, 8 May 2008 14:48:31 +0000 (22:48 +0800)] 
Remove duplicated include in net/sunrpc/svc.c

<linux/sched.h> we included twice.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofs/proc/task_mmu.c: remove duplicated include files
Huang Weiyi [Thu, 8 May 2008 14:36:27 +0000 (22:36 +0800)] 
fs/proc/task_mmu.c: remove duplicated include files

Removed duplicated include files <linux/ptrace.h> and <linux/seq_file.h> in
fs/proc/task_mmu.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFix drivers/media build for modular builds
Ingo Molnar [Wed, 30 Apr 2008 07:48:07 +0000 (09:48 +0200)] 
Fix drivers/media build for modular builds

Fix allmodconfig build bug introduced in latest -git by commit
7c91f0624a9 ("V4L/DVB(7767): Move tuners to common/tuners"):

  LD      kernel/built-in.o
  LD      drivers/built-in.o
  ld: drivers/media/built-in.o: No such file: No such file or directory

which happens if all media drivers are modular:

  http://redhat.com/~mingo/misc/config-Wed_Apr_30_09_24_48_CEST_2008.bad

In that case there's no obj-y rule connecting all the built-in.o files and
the link tree breaks.

The fix is to add a guaranteed obj-y rule for the core vmlinux to build.
(which results in an empty object file if all media drivers are modular)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Thu, 8 May 2008 17:50:34 +0000 (10:50 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/ehca: Wait for async events to finish before destroying QP
  IB/ipath: Fix SDMA error recovery in absence of link status change
  IB/ipath: Need to always request and handle PIO avail interrupts
  IB/ipath: Fix count of packets received by kernel
  IB/ipath: Return the correct opcode for RDMA WRITE with immediate
  IB/ipath: Fix bug that can leave sends disabled after freeze recovery
  IB/ipath: Only increment SSN if WQE is put on send queue
  IB/ipath: Only warn about prototype chip during init
  RDMA/cxgb3: Fix severe limit on userspace memory registration size
  RDMA/cxgb3: Don't add PBL memory to gen_pool in chunks

16 years agoMN10300: Make cpu_relax() invoke barrier()
David Howells [Wed, 7 May 2008 14:31:54 +0000 (15:31 +0100)] 
MN10300: Make cpu_relax() invoke barrier()

Make cpu_relax() invoke barrier() to be the same as other arches.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Thu, 8 May 2008 17:48:36 +0000 (10:48 -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:
  Revert "relay: fix splice problem"
  docbook: fix bio missing parameter
  block: use unitialized_var() in bio_alloc_bioset()
  block: avoid duplicate calls to get_part() in disk stat code
  cfq-iosched: make io priorities inherit CPU scheduling class as well as nice
  block: optimize generic_unplug_device()
  block: get rid of likely/unlikely predictions in merge logic
  vfs: splice remove_suid() cleanup
  cfq-iosched: fix RCU race in the cfq io_context destructor handling
  block: adjust tagging function queue bit locking
  block: sysfs store function needs to grab queue_lock and use queue_flag_*()

16 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Thu, 8 May 2008 17:48:03 +0000 (10:48 -0700)] 
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-udf-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6:
  udf: Fix memory corruption when fs mounted with noadinicb option
  udf: Make udf exportable
  udf: fs/udf/partition.c:udf_get_pblock() mustn't be inline

16 years agoMerge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Thu, 8 May 2008 17:47:39 +0000 (10:47 -0700)] 
Merge branch 'for-linus' of git://git390.osdl.marist.edu/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] guest page hinting light
  [S390] tty3270: fix put_char fail/success conversion.
  [S390] compat ptrace cleanup
  [S390] s390mach compile warning
  [S390] cio: Fix parsing mechanism for blacklisted devices.
  [S390] cio: Remove cio_msg kernel parameter.
  [S390] s390-kvm: leave sie context on work. Removes preemption requirement
  [S390] s390: Optimize user and work TIF check

16 years agodrivers/scsi/dpt_i2o.c: fix build on alpha
Andrew Morton [Wed, 7 May 2008 03:42:42 +0000 (20:42 -0700)] 
drivers/scsi/dpt_i2o.c: fix build on alpha

alpha:

drivers/scsi/dpt_i2o.c:1997: error: implicit declaration of function 'adpt_alpha_info'
drivers/scsi/dpt_i2o.c: At top level:
drivers/scsi/dpt_i2o.c:2032: warning: conflicting types for 'adpt_alpha_info'
drivers/scsi/dpt_i2o.c:2032: error: static declaration of 'adpt_alpha_info' follows non-static declaration
drivers/scsi/dpt_i2o.c:1997: error: previous implicit declaration of 'adpt_alpha_info' was here

Due to a copy-n-paste error in drivers/scsi/dpti.h.

Fix that up and remove some of the many daft static-declarations-in-a-header
which this driver enjoys.

Cc: Miquel van Smoorenburg <miquels@cistron.nl>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFix cpuset sched_relax_domain_level control file
Paul Menage [Wed, 7 May 2008 03:42:41 +0000 (20:42 -0700)] 
Fix cpuset sched_relax_domain_level control file

Due to a merge conflict, the sched_relax_domain_level control file was marked
as being handled by cpuset_read/write_u64, but the code to handle it was
actually in cpuset_common_file_read/write.

Since the value being written/read is in fact a signed integer, it should be
treated as such; this patch adds cpuset_read/write_s64 functions, and uses
them to handle the sched_relax_domain_level file.

With this patch, the sched_relax_domain_level can be read and written, and the
correct contents seen/updated.

Signed-off-by: Paul Menage <menage@google.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoslub: fix atomic usage in any_slab_objects()
Benjamin Herrenschmidt [Wed, 7 May 2008 03:42:39 +0000 (20:42 -0700)] 
slub: fix atomic usage in any_slab_objects()

any_slab_objects() does an atomic_read on an atomic_long_t, this
fixes it to use atomic_long_read instead.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agosys_pipe(): fix file descriptor leaks
Ulrich Drepper [Wed, 7 May 2008 03:42:38 +0000 (20:42 -0700)] 
sys_pipe(): fix file descriptor leaks

Remember to close the files if copy_to_user() failed.

Spotted by dm.n9107@gmail.com.

Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Cc: DM <dm.n9107@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agovt: fix canonical input in UTF-8 mode
Samuel Thibault [Wed, 7 May 2008 03:42:37 +0000 (20:42 -0700)] 
vt: fix canonical input in UTF-8 mode

For e.g.  proper TTY canonical support, IUTF8 termios flag has to be set as
appropriate.  Linux used to not care about setting that flag for VT TTYs.

This patch fixes that by activating it according to the current mode of the
VT, and sets the default value according to the vt.default_utf8 parameter.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Willy Tarreau <w@1wt.eu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agousb/asix: add Buffalo LUA-U2-GT 10/100/1000
Mattia Dongili [Wed, 7 May 2008 03:42:35 +0000 (20:42 -0700)] 
usb/asix: add Buffalo LUA-U2-GT 10/100/1000

The USB net adapter Buffalo LUA-U2-GT (0411:006e) carries a AX88178 chip.
Tested on the above HW.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Acked-off-by: David Hollis <dhollis@davehollis.com>
Cc: Greg KH <greg@kroah.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agosx.c: fix printk warnings on sparc32
Andrew Morton [Wed, 7 May 2008 03:42:35 +0000 (20:42 -0700)] 
sx.c: fix printk warnings on sparc32

drivers/char/sx.c: In function 'sx_set_real_termios':
drivers/char/sx.c:973: warning: format '%u' expects type 'unsigned int', but argument 2 has type 'long unsigned int'
drivers/char/sx.c:999: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'tcflag_t'
drivers/char/sx.c:1012: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'tcflag_t'

sparc32 seems to use weird types for its tty things.

[ Fine by me but this is ancient debug and most of the debug in sx just
  wants deleting eventually.  - Alan ]

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agouml: fix inconsistence due to tty_operation change
WANG Cong [Wed, 7 May 2008 03:42:33 +0000 (20:42 -0700)] 
uml: fix inconsistence due to tty_operation change

'put_char' of 'struct tty_operations' has changed from 'void' into 'int'.
This can also shut up compiler warnings.

Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: WANG Cong <wangcong@zeuux.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomisc: fix integer as NULL pointer warnings
Harvey Harrison [Wed, 7 May 2008 03:42:32 +0000 (20:42 -0700)] 
misc: fix integer as NULL pointer warnings

drivers/md/raid10.c:889:17: warning: Using plain integer as NULL pointer
drivers/media/video/cx18/cx18-driver.c:616:12: warning: Using plain integer as NULL pointer
sound/oss/kahlua.c:70:12: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofix irq flags for iuu_phoenix.c
Steven Rostedt [Wed, 7 May 2008 03:42:31 +0000 (20:42 -0700)] 
fix irq flags for iuu_phoenix.c

The file drivers/usb/serial/iuu_phoenix.c uses "int" for flags.  This can
cause hard to find bugs on some architectures.  This patch converts the flags
to use "long" instead.

This bug was discovered by doing an allyesconfig make on the -rt kernel where
checks are done to ensure all flags are of size sizeof(long).

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofix irq flags in rtc-ds1511
Steven Rostedt [Wed, 7 May 2008 03:42:30 +0000 (20:42 -0700)] 
fix irq flags in rtc-ds1511

The file in drivers/rtc/rtc-ds1551.c uses "int" for flags.  This can cause
hard to find bugs on some architectures.  This patch converts the flags to use
"long" instead.

This bug was discovered by doing an allyesconfig make on the -rt kernel where
checks are done to ensure all flags are of size sizeof(long).

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofix irq flags in saa7134
Steven Rostedt [Wed, 7 May 2008 03:42:29 +0000 (20:42 -0700)] 
fix irq flags in saa7134

Some files in the drivers/media/video/saa7134 directory uses "int" for flags.
This can cause hard to find bugs on some architectures.  This patch converts
the flags to use "long" instead.

This bug was discovered by doing an allyesconfig make on the -rt kernel where
checks are done to ensure all flags are of size sizeof(long).

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofix irq flags in mac80211 code
Steven Rostedt [Wed, 7 May 2008 03:42:28 +0000 (20:42 -0700)] 
fix irq flags in mac80211 code

A file in the net/mac80211 directory uses "int" for flags.  This can cause
hard to find bugs on some architectures.  This patch converts the flags to use
"long" instead.

This bug was discovered by doing an allyesconfig make on the -rt kernel where
checks are done to ensure all flags are of size sizeof(long).

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoserial: access after NULL check in uart_flush_buffer()
Tetsuo Handa [Wed, 7 May 2008 03:42:27 +0000 (20:42 -0700)] 
serial: access after NULL check in uart_flush_buffer()

I noticed that

  static void uart_flush_buffer(struct tty_struct *tty)
  {
   struct uart_state *state = tty->driver_data;
   struct uart_port *port = state->port;
   unsigned long flags;

   /*
    * This means you called this function _after_ the port was
    * closed.  No cookie for you.
    */
   if (!state || !state->info) {
   WARN_ON(1);
   return;
   }

is too late for checking state != NULL.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoKconfig: improved help for CONFIG_ACCESSIBILITY
Samuel Thibault [Wed, 7 May 2008 03:42:26 +0000 (20:42 -0700)] 
Kconfig: improved help for CONFIG_ACCESSIBILITY

Add a small explanation of what accessibility is.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agosched: fix weight calculations
Mike Galbraith [Thu, 8 May 2008 15:00:42 +0000 (17:00 +0200)] 
sched: fix weight calculations

The conversion between virtual and real time is as follows:

  dvt = rw/w * dt <=> dt = w/rw * dvt

Since we want the fair sleeper granularity to be in real time, we actually
need to do:

  dvt = - rw/w * l

This bug could be related to the regression reported by Yanmin Zhang:

| Comparing with kernel 2.6.25, sysbench+mysql(oltp, readonly) has lots
| of regressions with 2.6.26-rc1:
|
| 1) 8-core stoakley: 28%;
| 2) 16-core tigerton: 20%;
| 3) Itanium Montvale: 50%.

Reported-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agosemaphore: fix
Ingo Molnar [Thu, 8 May 2008 09:53:48 +0000 (11:53 +0200)] 
semaphore: fix

Yanmin Zhang reported:

| Comparing with kernel 2.6.25, AIM7 (use tmpfs) has more th
| regression under 2.6.26-rc1 on my 8-core stoakley, 16-core tigerton,
| and Itanium Montecito. Bisect located the patch below:
|
64ac24e738823161693bf791f87adc802cf529ff is first bad commit
| commit 64ac24e738823161693bf791f87adc802cf529ff
| Author: Matthew Wilcox <matthew@wil.cx>
| Date:   Fri Mar 7 21:55:58 2008 -0500
|
|     Generic semaphore implementation
|
| After I manually reverted the patch against 2.6.26-rc1 while fixing
| lots of conflicts/errors, aim7 regression became less than 2%.

i reproduced the AIM7 workload and can confirm Yanmin's findings that
-.26-rc1 regresses over .25 - by over 67% here.

Looking at the workload i found and fixed what i believe to be the real
bug causing the AIM7 regression: it was inefficient wakeup / scheduling
/ locking behavior of the new generic semaphore code, causing suboptimal
performance.

The problem comes from the following code. The new semaphore code does
this on down():

        spin_lock_irqsave(&sem->lock, flags);
        if (likely(sem->count > 0))
                sem->count--;
        else
                __down(sem);
        spin_unlock_irqrestore(&sem->lock, flags);

and this on up():

        spin_lock_irqsave(&sem->lock, flags);
        if (likely(list_empty(&sem->wait_list)))
                sem->count++;
        else
                __up(sem);
        spin_unlock_irqrestore(&sem->lock, flags);

where __up() does:

        list_del(&waiter->list);
        waiter->up = 1;
        wake_up_process(waiter->task);

and where __down() does this in essence:

        list_add_tail(&waiter.list, &sem->wait_list);
        waiter.task = task;
        waiter.up = 0;
        for (;;) {
                [...]
                spin_unlock_irq(&sem->lock);
                timeout = schedule_timeout(timeout);
                spin_lock_irq(&sem->lock);
                if (waiter.up)
                        return 0;
        }

the fastpath looks good and obvious, but note the following property of
the contended path: if there's a task on the ->wait_list, the up() of
the current owner will "pass over" ownership to that waiting task, in a
wake-one manner, via the waiter->up flag and by removing the waiter from
the wait list.

That is all and fine in principle, but as implemented in
kernel/semaphore.c it also creates a nasty, hidden source of contention!

The contention comes from the following property of the new semaphore
code: the new owner owns the semaphore exclusively, even if it is not
running yet.

So if the old owner, even if just a few instructions later, does a
down() [lock_kernel()] again, it will be blocked and will have to wait
on the new owner to eventually be scheduled (possibly on another CPU)!
Or if another task gets to lock_kernel() sooner than the "new owner"
scheduled, it will be blocked unnecessarily and for a very long time
when there are 2000 tasks running.

I.e. the implementation of the new semaphores code does wake-one and
lock ownership in a very restrictive way - it does not allow
opportunistic re-locking of the lock at all and keeps the scheduler from
picking task order intelligently.

This kind of scheduling, with 2000 AIM7 processes running, creates awful
cross-scheduling between those 2000 tasks, causes reduced parallelism, a
throttled runqueue length and a lot of idle time. With increasing number
of CPUs it causes an exponentially worse behavior in AIM7, as the chance
for a newly woken new-owner task to actually run anytime soon is less
and less likely.

Note that it takes just a tiny bit of contention for the 'new-semaphore
catastrophy' to happen: the wakeup latencies get added to whatever small
contention there is, and quickly snowball out of control!

I believe Yanmin's findings and numbers support this analysis too.

The best fix for this problem is to use the same scheduling logic that
the kernel/mutex.c code uses: keep the wake-one behavior (that is OK and
wanted because we do not want to over-schedule), but also allow
opportunistic locking of the lock even if a wakee is already "in
flight".

The patch below implements this new logic. With this patch applied the
AIM7 regression is largely fixed on my quad testbox:

  # v2.6.25 vanilla:
  ..................
  Tasks   Jobs/Min        JTI     Real    CPU     Jobs/sec/task
  2000    56096.4         91      207.5   789.7   0.4675
  2000    55894.4         94      208.2   792.7   0.4658

  # v2.6.26-rc1-166-gc0a1811 vanilla:
  ...................................
  Tasks   Jobs/Min        JTI     Real    CPU     Jobs/sec/task
  2000    33230.6         83      350.3   784.5   0.2769
  2000    31778.1         86      366.3   783.6   0.2648

  # v2.6.26-rc1-166-gc0a1811 + semaphore-speedup:
  ...............................................
  Tasks   Jobs/Min        JTI     Real    CPU     Jobs/sec/task
  2000    55707.1         92      209.0   795.6   0.4642
  2000    55704.4         96      209.0   796.0   0.4642

i.e. a 67% speedup. We are now back to within 1% of the v2.6.25
performance levels and have zero idle time during the test, as expected.

Btw., interactivity also improved dramatically with the fix - for
example console-switching became almost instantaneous during this
workload (which after all is running 2000 tasks at once!), without the
patch it was stuck for a minute at times.

There's another nice side-effect of this speedup patch, the new generic
semaphore code got even smaller:

   text    data     bss     dec     hex filename
   1241       0       0    1241     4d9 semaphore.o.before
   1207       0       0    1207     4b7 semaphore.o.after

(because the waiter.up complication got removed.)

Longer-term we should look into using the mutex code for the generic
semaphore code as well - but i's not easy due to legacies and it's
outside of the scope of v2.6.26 and outside the scope of this patch as
well.

Bisected-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoRevert "relay: fix splice problem"
Jens Axboe [Thu, 8 May 2008 12:06:19 +0000 (14:06 +0200)] 
Revert "relay: fix splice problem"

This reverts commit c3270e577c18b3d0e984c3371493205a4807db9d.

16 years ago[ALSA] soc at91 minor bug fixes
Patrik Sevallius [Thu, 8 May 2008 12:04:08 +0000 (14:04 +0200)] 
[ALSA] soc at91 minor bug fixes

Found these two bugs while browsing through the code.  The first one is
a cut-n-paste bug, instead of disabling the clock when request_irq()
fails, it enabled it once more.  The second one fixes a debug printout,
AT91_SSC_IER is write only, AT91_SSC_IMR is readable (the printed string
actually says imr).

Frank Mandarino was busy so he asked me to send these to this list.

/Patrik

Signed-off-by: Patrik Sevallius <patrik.sevallius@enea.com>
Acked-by: Frank Mandarino <fmandarino@endrelia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years ago[ALSA] soc - at91-pcm - Fix line wrapping
Mark Brown [Thu, 8 May 2008 12:03:30 +0000 (14:03 +0200)] 
[ALSA] soc - at91-pcm - Fix line wrapping

There's more checkpatch stuff to fix in the driver, this just fixes the
minimum required for the following patch to be clean.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agonet: Added ASSERT_RTNL() to dev_open() and dev_close().
Ben Hutchings [Thu, 8 May 2008 09:53:17 +0000 (02:53 -0700)] 
net: Added ASSERT_RTNL() to dev_open() and dev_close().

dev_open() and dev_close() must be called holding the RTNL, since they
call device functions and netdevice notifiers that are promised the RTNL.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agocan: Fix can_send() handling on dev_queue_xmit() failures
Oliver Hartkopp [Thu, 8 May 2008 09:49:55 +0000 (02:49 -0700)] 
can: Fix can_send() handling on dev_queue_xmit() failures

The tx packet counting and the local loopback of CAN frames should
only happen in the case that the CAN frame has been enqueued to the
netdevice tx queue successfully.

Thanks to Andre Naujoks <nautsch@gmail.com> for reporting this issue.

Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: Urs Thuermann <urs@isnogud.escape.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoMerge branch 'upstream-davem' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
David S. Miller [Thu, 8 May 2008 09:35:54 +0000 (02:35 -0700)] 
Merge branch 'upstream-davem' of /linux/kernel/git/jgarzik/netdev-2.6

16 years agonetns: Fix arbitrary net_device-s corruptions on net_ns stop.
Pavel Emelyanov [Thu, 8 May 2008 08:24:25 +0000 (01:24 -0700)] 
netns: Fix arbitrary net_device-s corruptions on net_ns stop.

When a net namespace is destroyed, some devices (those, not killed
on ns stop explicitly) are moved back to init_net.

The problem, is that this net_ns change has one point of failure -
the __dev_alloc_name() may be called if a name collision occurs (and
this is easy to trigger). This allocator performs a likely-to-fail
GFP_ATOMIC allocation to find a suitable number. Other possible
conditions that may cause error (for device being ns local or not
registered) are always false in this case.

So, when this call fails, the device is unregistered. But this is
*not* the right thing to do, since after this the device may be
released (and kfree-ed) improperly. E. g. bridges require more
actions (sysfs update, timer disarming, etc.), some other devices
want to remove their private areas from lists, etc.

I. e. arbitrary use-after-free cases may occur.

The proposed fix is the following: since the only reason for the
dev_change_net_namespace to fail is the name generation, we may
give it a unique fall-back name w/o %d-s in it - the dev<ifindex>
one, since ifindexes are still unique.

So make this change, raise the failure-case printk loglevel to
EMERG and replace the unregister_netdevice call with BUG().

[ Use snprintf() -DaveM ]

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonetfilter: Kconfig: default DCCP/SCTP conntrack support to the protocol config values
Patrick McHardy [Thu, 8 May 2008 08:16:04 +0000 (01:16 -0700)] 
netfilter: Kconfig: default DCCP/SCTP conntrack support to the protocol config values

When conntrack and DCCP/SCTP protocols are enabled, chances are good
that people also want DCCP/SCTP conntrack and NAT support.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonetfilter: nf_conntrack_sip: restrict RTP expect flushing on error to last request
Patrick McHardy [Thu, 8 May 2008 08:15:21 +0000 (01:15 -0700)] 
netfilter: nf_conntrack_sip: restrict RTP expect flushing on error to last request

Some Inovaphone PBXs exhibit very stange behaviour: when dialing for
example "123", the device sends INVITE requests for "1", "12" and
"123" back to back.  The first requests will elicit error responses
from the receiver, causing the SIP helper to flush the RTP
expectations even though we might still see a positive response.

Note the sequence number of the last INVITE request that contained a
media description and only flush the expectations when receiving a
negative response for that sequence number.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agomacvlan: Fix memleak on device removal/crash on module removal
Patrick McHardy [Thu, 8 May 2008 08:13:31 +0000 (01:13 -0700)] 
macvlan: Fix memleak on device removal/crash on module removal

As noticed by Ben Greear, macvlan crashes the kernel when unloading the
module. The reason is that it tries to clean up the macvlan_port pointer
on the macvlan device itself instead of the underlying device. A non-NULL
pointer is taken as indication that the macvlan_handle_frame_hook is
valid, when receiving the next packet on the underlying device it tries
to call the NULL hook and crashes.

Clean up the macvlan_port on the correct device to fix this.

Signed-off-by; Patrick McHardy <kaber@trash.net>
Tested-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonet/ipv4: correct RFC 1122 section reference in comment
J.H.M. Dassen (Ray) [Thu, 8 May 2008 08:11:04 +0000 (01:11 -0700)] 
net/ipv4: correct RFC 1122 section reference in comment

RFC 1122 does not have a section 3.1.2.2. The requirement to silently
discard datagrams with a bad checksum is in section 3.2.1.2 instead.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=10611

Signed-off-by: J.H.M. Dassen (Ray) <jdassen@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agotcp FRTO: SACK variant is errorneously used with NewReno
Ilpo Järvinen [Thu, 8 May 2008 08:09:11 +0000 (01:09 -0700)] 
tcp FRTO: SACK variant is errorneously used with NewReno

Note: there's actually another bug in FRTO's SACK variant, which
is the causing failure in NewReno case because of the error
that's fixed here. I'll fix the SACK case separately (it's
a separate bug really, though related, but in order to fix that
I need to audit tp->snd_nxt usage a bit).

There were two places where SACK variant of FRTO is getting
incorrectly used even if SACK wasn't negotiated by the TCP flow.
This leads to incorrect setting of frto_highmark with NewReno
if a previous recovery was interrupted by another RTO.

An eventual fallback to conventional recovery then incorrectly
considers one or couple of segments as forward transmissions
though they weren't, which then are not LOST marked during
fallback making them "non-retransmittable" until the next RTO.
In a bad case, those segments are really lost and are the only
one left in the window. Thus TCP needs another RTO to continue.
The next FRTO, however, could again repeat the same events
making the progress of the TCP flow extremely slow.

In order for these events to occur at all, FRTO must occur
again in FRTOs step 3 while the key segments must be lost as
well, which is not too likely in practice. It seems to most
frequently with some small devices such as network printers
that *seem* to accept TCP segments only in-order. In cases
were key segments weren't lost, things get automatically
resolved because those wrongly marked segments don't need to be
retransmitted in order to continue.

I found a reproducer after digging up relevant reports (few
reports in total, none at netdev or lkml I know of), some
cases seemed to indicate middlebox issues which seems now
to be a false assumption some people had made. Bugzilla
#10063 _might_ be related. Damon L. Chesser <damon@damtek.com>
had a reproducable case and was kind enough to tcpdump it
for me. With the tcpdump log it was quite trivial to figure
out.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years ago[POWERPC] spufs: lockdep annotations for spufs_dir_close
Christoph Hellwig [Thu, 8 May 2008 05:29:12 +0000 (15:29 +1000)] 
[POWERPC] spufs: lockdep annotations for spufs_dir_close

We need to acquire the parent i_mutex with I_MUTEX_PARENT to keep
lockdep happy.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
16 years ago[POWERPC] spufs: don't requeue victim contex in find_victim if it's not in spu_run
Christoph Hellwig [Thu, 8 May 2008 05:26:32 +0000 (15:26 +1000)] 
[POWERPC] spufs: don't requeue victim contex in find_victim if it's not in spu_run

We should not requeue the victim context in find_victim if the owner is
not in spu_run. It's first not needed because leaving the context on
the spu is an optimization and second is harmful because it means the
owner could re-enter spu_run when the context is on the runqueue and
trip the BUG_ON in __spu_update_sched_info.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
16 years agosh: Stub in cpu_to_node() and friends for NUMA build.
Paul Mundt [Thu, 8 May 2008 04:40:17 +0000 (13:40 +0900)] 
sh: Stub in cpu_to_node() and friends for NUMA build.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: intc register modify fix
Magnus Damm [Thu, 24 Apr 2008 12:53:07 +0000 (21:53 +0900)] 
sh: intc register modify fix

Make sure register modifications stay atomic. Fixes processors with
shared priority register masking. Dual bitmap masking is unaffected.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: no high level trigger on some sh3 cpus
Magnus Damm [Thu, 24 Apr 2008 12:47:15 +0000 (21:47 +0900)] 
sh: no high level trigger on some sh3 cpus

The processor models sh7706, sh7707 and sh7709 don't support high
level trigger sense configuration. And the intc code looks like
crap these days so what's the difference.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: clean up sh7710 and sh7720 intc tables
Magnus Damm [Thu, 24 Apr 2008 12:41:12 +0000 (21:41 +0900)] 
sh: clean up sh7710 and sh7720 intc tables

Clean up the intc tables by removing unneeded #ifdefs. The vector
list is what selects which interrupt sources that should be added,
having unsupported bitfields listed is ok as long as the vector
is excluded from the list.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: add interrupt ack code to sh3
Magnus Damm [Thu, 24 Apr 2008 12:36:34 +0000 (21:36 +0900)] 
sh: add interrupt ack code to sh3

This patch adds interrupt acknowledge code for external interrupt
sources on sh3 processors. Only really required for edge triggered
interrupts, but we ack regardless of sense configuration.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: unify external irq pin code for sh3
Magnus Damm [Thu, 24 Apr 2008 12:30:09 +0000 (21:30 +0900)] 
sh: unify external irq pin code for sh3

This patch unifies the sh3 external irq pin code. It buys us some
savings with reduced code redundancy, but the main feature with
this change is irq sense selection support for all sh3 processors.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh-sci: avoid writing to nonexistent registers
Magnus Damm [Wed, 23 Apr 2008 12:37:39 +0000 (21:37 +0900)] 
sh-sci: avoid writing to nonexistent registers

Only write to hardware in SCI_OUT() if the register size is valid.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh-sci: sh7722 lacks scsptr registers
Magnus Damm [Wed, 23 Apr 2008 12:31:14 +0000 (21:31 +0900)] 
sh-sci: sh7722 lacks scsptr registers

The sh7722 serial ports all lack SCSPTR registers, so mark them as
nonexistent in the register table.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh-sci: improve sh7722 support
Magnus Damm [Wed, 23 Apr 2008 12:25:29 +0000 (21:25 +0900)] 
sh-sci: improve sh7722 support

Improve sh7722 support for SCIF1 and SCIF2 and separate code
from sh7366 implementation.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: reset hardware from early printk
Magnus Damm [Wed, 23 Apr 2008 12:16:06 +0000 (21:16 +0900)] 
sh: reset hardware from early printk

Reset the transmitter and receiver when setting up early printk.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: drain and wait for early printk
Magnus Damm [Wed, 23 Apr 2008 12:05:11 +0000 (21:05 +0900)] 
sh: drain and wait for early printk

Drain by waiting for all characters to be sent, and make sure to
wait a little bit after setting up the baud rate.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: use sci_out() for early printk
Magnus Damm [Wed, 23 Apr 2008 12:00:54 +0000 (21:00 +0900)] 
sh: use sci_out() for early printk

Use sci_out() instead of ctrl_outw() for early printk setup code.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: add memory resources to /proc/iomem
Magnus Damm [Wed, 23 Apr 2008 11:56:44 +0000 (20:56 +0900)] 
sh: add memory resources to /proc/iomem

Add physical memory resources such as System RAM, Kernel code/data/bss
and reserved crash dump area to /proc/iomem. Same strategy as on x86.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: add kernel bss resource
Magnus Damm [Wed, 23 Apr 2008 11:50:27 +0000 (20:50 +0900)] 
sh: add kernel bss resource

Do like everyone else and have a struct resource for kernel bss.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: fix sh7705 interrupt vector typo
Magnus Damm [Wed, 23 Apr 2008 11:24:52 +0000 (20:24 +0900)] 
sh: fix sh7705 interrupt vector typo

Fix sh7705 interrupt sources for vectors 0xc80 and 0xca0.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: update smc91x platform data for se7722
Magnus Damm [Wed, 23 Apr 2008 11:18:04 +0000 (20:18 +0900)] 
sh: update smc91x platform data for se7722

Select smc91x bus width using platform data for se7722 now when the
smc91x header file is in place.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: update smc91x platform data for MigoR
Magnus Damm [Wed, 23 Apr 2008 11:13:59 +0000 (20:13 +0900)] 
sh: update smc91x platform data for MigoR

Select smc91x bus width and irg flags using platform data for MigoR
now when the smc91x header file is in place.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: remove -traditional.
Mathieu Desnoyers [Fri, 25 Apr 2008 09:01:17 +0000 (18:01 +0900)] 
sh: remove -traditional.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Sam Ravnborg <sam@ravnborg.org>
CC: linux-sh@vger.kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agortc: rtc-sh: Fixup for 64-bit resources.
Paul Mundt [Fri, 25 Apr 2008 08:58:42 +0000 (17:58 +0900)] 
rtc: rtc-sh: Fixup for 64-bit resources.

ioremap() and friends get the size information right, so force everything
to go through there.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: r7780rp: Kill off unneded ifdefs for irq setup.
Paul Mundt [Fri, 25 Apr 2008 08:58:21 +0000 (17:58 +0900)] 
sh: r7780rp: Kill off unneded ifdefs for irq setup.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: rts7751r2d: Kill off unneeded ifdefs.
Paul Mundt [Fri, 25 Apr 2008 07:10:53 +0000 (16:10 +0900)] 
sh: rts7751r2d: Kill off unneeded ifdefs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: intc_sh5 depends on cayman board for IRQ priority table.
Paul Mundt [Fri, 25 Apr 2008 07:08:37 +0000 (16:08 +0900)] 
sh: intc_sh5 depends on cayman board for IRQ priority table.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agoinput: i8042: sh64 IRQ definitions depend on cayman board.
Paul Mundt [Fri, 25 Apr 2008 07:07:53 +0000 (16:07 +0900)] 
input: i8042: sh64 IRQ definitions depend on cayman board.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: Enable use of the clk fwk on SH-5.
Paul Mundt [Fri, 25 Apr 2008 07:04:20 +0000 (16:04 +0900)] 
sh: Enable use of the clk fwk on SH-5.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh64: export onchip_remap/unmap() too.
Paul Mundt [Fri, 25 Apr 2008 07:03:21 +0000 (16:03 +0900)] 
sh64: export onchip_remap/unmap() too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh64: Some symbol exports to make the allmodconfig happier.
Paul Mundt [Fri, 25 Apr 2008 07:01:38 +0000 (16:01 +0900)] 
sh64: Some symbol exports to make the allmodconfig happier.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agomtd: solutionengine flash map depends on solution engine mach group.
Paul Mundt [Fri, 25 Apr 2008 05:27:08 +0000 (14:27 +0900)] 
mtd: solutionengine flash map depends on solution engine mach group.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: remove the broken SH_MPC1211 support
Adrian Bunk [Sun, 30 Mar 2008 22:40:17 +0000 (01:40 +0300)] 
sh: remove the broken SH_MPC1211 support

SH_MPC1211 has been marked as BROKEN for some time.

Unless someone is working on reviving it now, I'd therefore suggest this
patch to remove it.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh64: Setup I/D-TLB defaults in SH-5 probe path.
Paul Mundt [Fri, 25 Apr 2008 04:05:17 +0000 (13:05 +0900)] 
sh64: Setup I/D-TLB defaults in SH-5 probe path.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: kexec and kdump depend on SUPERH32.
Paul Mundt [Fri, 25 Apr 2008 04:04:56 +0000 (13:04 +0900)] 
sh: kexec and kdump depend on SUPERH32.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>