opensuse:kernel.git
8 years agoLinux 2.6.31-rc1
Linus Torvalds [Wed, 24 Jun 2009 23:25:37 +0000 (16:25 -0700)]
Linux 2.6.31-rc1

8 years agoRevert "PCI: use ACPI _CRS data by default"
Linus Torvalds [Wed, 24 Jun 2009 23:23:03 +0000 (16:23 -0700)]
Revert "PCI: use ACPI _CRS data by default"

This reverts commit 9e9f46c44e487af0a82eb61b624553e2f7118f5b.

Quoting from the commit message:

 "At this point, it seems to solve more problems than it causes, so let's
  try using it by default.  It's an easy revert if it ends up causing
  trouble."

And guess what? The _CRS code causes trouble.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoMerge git://git.infradead.org/battery-2.6
Linus Torvalds [Wed, 24 Jun 2009 21:35:57 +0000 (14:35 -0700)]
Merge git://git.infradead.org/battery-2.6

* git://git.infradead.org/battery-2.6:
  da9030_battery: Fix race between event handler and monitor
  Add MAX17040 Fuel Gauge driver
  w1: ds2760_battery: add support for sleep mode feature
  w1: ds2760: add support for EEPROM read and write
  ds2760_battery: cleanups in ds2760_battery_probe()

8 years agoMerge branches 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro...
Linus Torvalds [Wed, 24 Jun 2009 21:17:14 +0000 (14:17 -0700)]
Merge branches 'for-linus' of git://git./linux/kernel/git/viro/{vfs-2.6,audit-current}

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  another race fix in jfs_check_acl()
  Get "no acls for this inode" right, fix shmem breakage
  inline functions left without protection of ifdef (acl)

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
  audit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALL

8 years agoanother race fix in jfs_check_acl()
Al Viro [Wed, 24 Jun 2009 21:02:42 +0000 (17:02 -0400)]
another race fix in jfs_check_acl()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoGet "no acls for this inode" right, fix shmem breakage
Al Viro [Wed, 24 Jun 2009 20:58:48 +0000 (16:58 -0400)]
Get "no acls for this inode" right, fix shmem breakage

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoaudit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALL
Eric Paris [Wed, 24 Jun 2009 20:09:01 +0000 (16:09 -0400)]
audit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALL

Even though one cannot make use of the audit watch code without
CONFIG_AUDIT_SYSCALL the spaghetti nature of the audit code means that
the audit rule filtering requires that it at least be compiled.

Thus build the audit_watch code when we build auditfilter like it was
before cfcad62c74abfef83762dc05a556d21bdf3980a2

Clearly this is a point of potential future cleanup..

Reported-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoinline functions left without protection of ifdef (acl)
Markus Trippelsdorf [Wed, 24 Jun 2009 20:28:52 +0000 (22:28 +0200)]
inline functions left without protection of ifdef (acl)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoMerge branch 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 24 Jun 2009 20:33:19 +0000 (13:33 -0700)]
Merge branch 'futexes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  futex: Fix the write access fault problem for real

8 years agofutex: Fix the write access fault problem for real
Thomas Gleixner [Thu, 11 Jun 2009 21:15:43 +0000 (23:15 +0200)]
futex: Fix the write access fault problem for real

commit 64d1304a64 (futex: setup writeable mapping for futex ops which
modify user space data) did address only half of the problem of write
access faults.

The patch was made on two wrong assumptions:

1) access_ok(VERIFY_WRITE,...) would actually check write access.

   On x86 it does _NOT_. It's a pure address range check.

2) a RW mapped region can not go away under us.

   That's wrong as well. Nobody can prevent another thread to call
   mprotect(PROT_READ) on that region where the futex resides. If that
   call hits between the get_user_pages_fast() verification and the
   actual write access in the atomic region we are toast again.

The solution is to not rely on access_ok and get_user() for any write
access related fault on private and shared futexes. Instead we need to
fault it in with verification of write access.

There is no generic non destructive write mechanism which would fault
the user page in trough a #PF, but as we already know that we will
fault we can as well call get_user_pages() directly and avoid the #PF
overhead.

If get_user_pages() returns -EFAULT we know that we can not fix it
anymore and need to bail out to user space.

Remove a bunch of confusing comments on this issue as well.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org
8 years agoSLUB: Don't pass __GFP_FAIL for the initial allocation
Pekka Enberg [Wed, 24 Jun 2009 18:59:51 +0000 (21:59 +0300)]
SLUB: Don't pass __GFP_FAIL for the initial allocation

SLUB uses higher order allocations by default but falls back to small
orders under memory pressure. Make sure the GFP mask used in the initial
allocation doesn't include __GFP_NOFAIL.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoDon't warn about order-1 allocations with __GFP_NOFAIL
Linus Torvalds [Wed, 24 Jun 2009 19:16:49 +0000 (12:16 -0700)]
Don't warn about order-1 allocations with __GFP_NOFAIL

Traditionally, we never failed small orders (even regardless of any
__GFP_NOFAIL flags), and slab will allocate order-1 allocations even for
small allocations that could fit in a single page (in order to avoid
excessive fragmentation).

Maybe we should remove this warning entirely, but before making that
judgement, at least limit it to bigger allocations.

Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Wed, 24 Jun 2009 17:47:38 +0000 (10:47 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  Staging: octeon-ethernet: Fix race freeing transmit buffers.
  Staging: octeon-ethernet: Convert to use net_device_ops.
  MIPS: Cavium: Add CPU hotplugging code.
  MIPS: SMP: Allow suspend and hibernation if CPU hotplug is available
  MIPS: Add arch generic CPU hotplug
  DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set
  MIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined.
  MIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined.
  MIPS: Hibernation: Remove SMP TLB and cacheflushing code.
  MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.
  MIPS: bug.h Build fix - include <linux/compiler.h>.

8 years agoStaging: octeon-ethernet: Fix race freeing transmit buffers.
David Daney [Tue, 23 Jun 2009 23:20:56 +0000 (16:20 -0700)]
Staging: octeon-ethernet: Fix race freeing transmit buffers.

The existing code had the following race:

Thread-1                       Thread-2

inc/read in_use
                               inc/read in_use
inc tx_free_list[qos].len
                               inc tx_free_list[qos].len

The actual in_use value was incremented twice, but thread-1 is going
to free memory based on its stale value, and will free one too many
times.  The result is that memory is freed back to the kernel while
its packet is still in the transmit buffer.  If the memory is
overwritten before it is transmitted, the hardware will put a valid
checksum on it and send it out (just like it does with good packets).
If by chance the TCP flags are clobbered but not the addresses or
ports, the result can be a broken TCP stream.

The fix is to track the number of freed packets in a single location
(a Fetch-and-Add Unit register).  That way it can never get out of sync
with itself.

We try to free up to MAX_SKB_TO_FREE (currently 10) buffers at a time.
If fewer are available we adjust the free count with the difference.
The action of claiming buffers to free is atomic so two threads cannot
claim the same buffers.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoStaging: octeon-ethernet: Convert to use net_device_ops.
David Daney [Tue, 23 Jun 2009 18:34:08 +0000 (11:34 -0700)]
Staging: octeon-ethernet: Convert to use net_device_ops.

Convert the driver to use net_device_ops as it is now mandatory.

Also compensate for the removal of struct sk_buff's dst field.

The changes are mostly mechanical, the content of ethernet-common.c
was moved to ethernet.c and ethernet-common.{c,h} are removed.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Cavium: Add CPU hotplugging code.
Ralf Baechle [Tue, 23 Jun 2009 09:36:38 +0000 (10:36 +0100)]
MIPS: Cavium: Add CPU hotplugging code.

Thanks to Cavium Inc. for the code contribution and help.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: SMP: Allow suspend and hibernation if CPU hotplug is available
Ralf Baechle [Tue, 23 Jun 2009 09:20:56 +0000 (10:20 +0100)]
MIPS: SMP: Allow suspend and hibernation if CPU hotplug is available

The SMP implementation of suspend and hibernate depends on CPU hotplugging.
In the past we didn't have CPU hotplug so suspend and hibernation were not
possible on SMP systems.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Add arch generic CPU hotplug
Ralf Baechle [Tue, 23 Jun 2009 09:00:31 +0000 (10:00 +0100)]
MIPS: Add arch generic CPU hotplug

Each platform has to add support for CPU hotplugging itself by providing
suitable definitions for the cpu_disable and cpu_die of the smp_ops
methods and setting SYS_SUPPORTS_HOTPLUG_CPU.  A platform should only set
SYS_SUPPORTS_HOTPLUG_CPU once all it's smp_ops definitions have the
necessary changes.  This patch contains the changes to the dummy smp_ops
definition for uni-processor systems.

Parts of the code contributed by Cavium Inc.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoDMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set
Atsushi Nemoto [Wed, 17 Jun 2009 20:08:31 +0000 (13:08 -0700)]
DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set

This patch does not change actual behaviour since dma_unmap_page is just
an alias of dma_unmap_single on MIPS.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined.
Ralf Baechle [Mon, 22 Jun 2009 15:17:52 +0000 (16:17 +0100)]
MIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined.

This fixes kernel.org bugzilla 13596, see
http://bugzilla.kernel.org/show_bug.cgi?id=13596

Reported-by: dvice_null@yahoo.com
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined.
Ralf Baechle [Mon, 22 Jun 2009 14:48:27 +0000 (15:48 +0100)]
MIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined.

This fixes kernel.org bugzilla 13595, see
http://bugzilla.kernel.org/show_bug.cgi?id=13595

Reported-by: dvice_null@yahoo.com
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Hibernation: Remove SMP TLB and cacheflushing code.
Ralf Baechle [Fri, 19 Jun 2009 14:01:44 +0000 (15:01 +0100)]
MIPS: Hibernation: Remove SMP TLB and cacheflushing code.

We can't perform any flushes on SMP from swsusp_arch_resume because
interrupts are disabled.  A cross-CPU flush is unnecessary anyway
because all but the local CPU have already been disabled.  A local
flush is not needed either because we didn't change any mappings.  So
just delete the code.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.
Ralf Baechle [Fri, 19 Jun 2009 13:05:26 +0000 (14:05 +0100)]
MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.

Some of the were relying into smp.h being dragged in by another header
which of course is fragile.  <asm/cpu-info.h> uses smp_processor_id()
only in macros and including smp.h there leads to an include loop, so
don't change cpu-info.h.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bug.h Build fix - include <linux/compiler.h>.
Ralf Baechle [Fri, 19 Jun 2009 12:51:28 +0000 (13:51 +0100)]
MIPS: bug.h Build fix - include <linux/compiler.h>.

In the past this file somehow used to be dragged in.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
Linus Torvalds [Wed, 24 Jun 2009 17:26:54 +0000 (10:26 -0700)]
Merge git://git./linux/kernel/git/agk/linux-2.6-dm

* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (48 commits)
  dm mpath: change to be request based
  dm: disable interrupt when taking map_lock
  dm: do not set QUEUE_ORDERED_DRAIN if request based
  dm: enable request based option
  dm: prepare for request based option
  dm raid1: add userspace log
  dm: calculate queue limits during resume not load
  dm log: fix create_log_context to use logical_block_size of log device
  dm target:s introduce iterate devices fn
  dm table: establish queue limits by copying table limits
  dm table: replace struct io_restrictions with struct queue_limits
  dm table: validate device logical_block_size
  dm table: ensure targets are aligned to logical_block_size
  dm ioctl: support cookies for udev
  dm: sysfs add suspended attribute
  dm table: improve warning message when devices not freed before destruction
  dm mpath: add service time load balancer
  dm mpath: add queue length load balancer
  dm mpath: add start_io and nr_bytes to path selectors
  dm snapshot: use barrier when writing exception store
  ...

8 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb
Linus Torvalds [Wed, 24 Jun 2009 17:26:24 +0000 (10:26 -0700)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/dvrabel/uwb

* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb:
  uwb: allow WLP to be used with IPv6.
  uwb: event_size should be signed

8 years agoMerge branch 'audit.b63' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit...
Linus Torvalds [Wed, 24 Jun 2009 17:22:57 +0000 (10:22 -0700)]
Merge branch 'audit.b63' of git://git./linux/kernel/git/viro/audit-current

* 'audit.b63' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
  Fix rule eviction order for AUDIT_DIR
  Audit: clean up all op= output to include string quoting
  Audit: move audit_get_nd completely into audit_watch
  audit: seperate audit inode watches into a subfile
  Audit: clean up audit_receive_skb
  Audit: cleanup netlink mesg handling
  Audit: unify the printk of an skb when auditd not around
  Audit: dereferencing krule as if it were an audit_watch
  Audit: better estimation of execve record length
  Audit: fix audit watch use after free

8 years agoMAINTAINERS: Change mailing list info for CRIS
Jesper Nilsson [Wed, 24 Jun 2009 07:33:19 +0000 (09:33 +0200)]
MAINTAINERS: Change mailing list info for CRIS

Posting to the dev-etrax mailing list is only allowed for subscribers,
and the list is more geared toward user applications than kernel
developers.

Change to newly created mailing list for CRIS.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Wed, 24 Jun 2009 17:17:07 +0000 (10:17 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (72 commits)
  asus-laptop: remove EXPERIMENTAL dependency
  asus-laptop: use pr_fmt and pr_<level>
  eeepc-laptop: cpufv updates
  eeepc-laptop: sync eeepc-laptop with asus_acpi
  asus_acpi: Deprecate in favor of asus-laptop
  acpi4asus: update MAINTAINER and KConfig links
  asus-laptop: platform dev as parent for led and backlight
  eeepc-laptop: enable camera by default
  ACPI: Rename ACPI processor device bus ID
  acerhdf: Acer Aspire One fan control
  ACPI: video: DMI workaround broken Acer 7720 BIOS enabling display brightness
  ACPI: run ACPI device hot removal in kacpi_hotplug_wq
  ACPI: Add the reference count to avoid unloading ACPI video bus twice
  ACPI: DMI to disable Vista compatibility on some Sony laptops
  ACPI: fix a deadlock in hotplug case
  Show the physical device node of backlight class device.
  ACPI: pdc init related memory leak with physical CPU hotplug
  ACPI: pci_root: remove unused dev/fn information
  ACPI: pci_root: simplify list traversals
  ACPI: pci_root: use driver data rather than list lookup
  ...

8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Wed, 24 Jun 2009 17:03:12 +0000 (10:03 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (23 commits)
  switch xfs to generic acl caching helpers
  helpers for acl caching + switch to those
  switch shmem to inode->i_acl
  switch reiserfs to inode->i_acl
  switch reiserfs to usual conventions for caching ACLs
  reiserfs: minimal fix for ACL caching
  switch nilfs2 to inode->i_acl
  switch btrfs to inode->i_acl
  switch jffs2 to inode->i_acl
  switch jfs to inode->i_acl
  switch ext4 to inode->i_acl
  switch ext3 to inode->i_acl
  switch ext2 to inode->i_acl
  add caching of ACLs in struct inode
  fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls
  cleanup __writeback_single_inode
  ... and the same for vfsmount id/mount group id
  Make allocation of anon devices cheaper
  update Documentation/filesystems/Locking
  devpts: remove module-related code
  ...

8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
Linus Torvalds [Wed, 24 Jun 2009 17:01:12 +0000 (10:01 -0700)]
Merge git://git./linux/kernel/git/davem/net-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6:
  bnx2: Fix the behavior of ethtool when ONBOOT=no
  qla3xxx: Don't sleep while holding lock.
  qla3xxx: Give the PHY time to come out of reset.
  ipv4 routing: Ensure that route cache entries are usable and reclaimable with caching is off
  net: Move rx skb_orphan call to where needed
  ipv6: Use correct data types for ICMPv6 type and code
  net: let KS8842 driver depend on HAS_IOMEM
  can: let SJA1000 driver depend on HAS_IOMEM
  netxen: fix firmware init handshake
  netxen: fix build with without CONFIG_PM
  netfilter: xt_rateest: fix comparison with self
  netfilter: xt_quota: fix incomplete initialization
  netfilter: nf_log: fix direct userspace memory access in proc handler
  netfilter: fix some sparse endianess warnings
  netfilter: nf_conntrack: fix conntrack lookup race
  netfilter: nf_conntrack: fix confirmation race condition
  netfilter: nf_conntrack: death_by_timeout() fix

8 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Wed, 24 Jun 2009 16:57:10 +0000 (09:57 -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: remove redundant tests on unsigned
  udf: Use device size when drive reported bogus number of written blocks

8 years agoRemove low_latency flag setting from nozomi and mxser drivers
Chuck Ebbert [Wed, 24 Jun 2009 17:35:13 +0000 (18:35 +0100)]
Remove low_latency flag setting from nozomi and mxser drivers

The kernel oopses if this flag is set.

[and neither driver should set it as they call tty_flip_buffer_push from IRQ
 paths so have always been buggy]

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agotty: fix tty_port_block_til_ready waiting
Jiri Slaby [Wed, 24 Jun 2009 17:35:05 +0000 (18:35 +0100)]
tty: fix tty_port_block_til_ready waiting

Since commit 3e3b5c087799e536871c8261b05bc28e4783c8da ("tty: use
prepare/finish_wait"), tty_port_block_til_ready() is using
prepare_to_wait()/finish_wait().  Those functions require that the
wait_queue_t be initialised with .func=autoremove_wake_function, via
DEFINE_WAIT().

But the conversion from DECLARE_WAITQUEUE() to DEFINE_WAIT() was not made,
so this code will oops in finish_wait().

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agopci: use pci_ioremap_bar() in drivers/serial
Arjan van de Ven [Wed, 24 Jun 2009 17:34:58 +0000 (18:34 +0100)]
pci: use pci_ioremap_bar() in drivers/serial

Use the newly introduced pci_ioremap_bar() function in drivers/serial.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agosynclink_gt: fix transmit race and timeout
Paul Fulghum [Wed, 24 Jun 2009 17:34:51 +0000 (18:34 +0100)]
synclink_gt: fix transmit race and timeout

Fix race condition when adding transmit data to active DMA buffer ring
that can cause transmit stall.

Update transmit timeout when adding data to active DMA buffer ring.
Base transmit timeout on amount of buffered data instead of using fixed
value.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agojsm: clean up "serial: jsm: correctly support 4 8 port boards"
Andrew Morton [Wed, 24 Jun 2009 17:34:43 +0000 (18:34 +0100)]
jsm: clean up "serial: jsm: correctly support 4 8 port boards"

Remove unneeded casts.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agokgdb: kgdboc console poll hooks for serial_txx9 uart
Atsushi Nemoto [Wed, 24 Jun 2009 17:34:34 +0000 (18:34 +0100)]
kgdb: kgdboc console poll hooks for serial_txx9 uart

Implement the serial polling hooks for the serial_txx9 uart for use with
kgdboc.

This patch once got SOB from Jason on Jul 2008 and (perhaps) merged into
kgdb-next branch, but lost somewhere then.  I resend it now with Jason's
Acked-by.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoswitch xfs to generic acl caching helpers
Al Viro [Tue, 9 Jun 2009 17:29:39 +0000 (13:29 -0400)]
switch xfs to generic acl caching helpers

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agohelpers for acl caching + switch to those
Al Viro [Tue, 9 Jun 2009 16:11:54 +0000 (12:11 -0400)]
helpers for acl caching + switch to those

helpers: get_cached_acl(inode, type), set_cached_acl(inode, type, acl),
forget_cached_acl(inode, type).

ubifs/xattr.c needed includes reordered, the rest is a plain switchover.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch shmem to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:56:00 +0000 (19:56 -0400)]
switch shmem to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch reiserfs to inode->i_acl
Al Viro [Tue, 9 Jun 2009 01:07:04 +0000 (21:07 -0400)]
switch reiserfs to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch reiserfs to usual conventions for caching ACLs
Al Viro [Tue, 9 Jun 2009 01:01:13 +0000 (21:01 -0400)]
switch reiserfs to usual conventions for caching ACLs

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoreiserfs: minimal fix for ACL caching
Al Viro [Tue, 9 Jun 2009 00:46:54 +0000 (20:46 -0400)]
reiserfs: minimal fix for ACL caching

reiserfs uses NULL as "unknown" and ERR_PTR(-ENODATA) as "no ACL";
several codepaths store the former instead of the latter.

All those codepaths go through iset_acl() and all cases when it's
called with NULL acl are for the second variety, so the minimal
fix is to teach iset_acl() to deal with that.

Proper fix is to switch to more usual conventions and avoid back
and forth between internally used ERR_PTR(-ENODATA) and NULL
expected by the rest of the kernel.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch nilfs2 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:56:34 +0000 (19:56 -0400)]
switch nilfs2 to inode->i_acl

Actually, get rid of private analog, since nothing in there is
using ACLs at all so far.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch btrfs to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:55:32 +0000 (19:55 -0400)]
switch btrfs to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch jffs2 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:55:12 +0000 (19:55 -0400)]
switch jffs2 to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch jfs to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:54:52 +0000 (19:54 -0400)]
switch jfs to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch ext4 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:54:26 +0000 (19:54 -0400)]
switch ext4 to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch ext3 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:53:58 +0000 (19:53 -0400)]
switch ext3 to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoswitch ext2 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:52:55 +0000 (19:52 -0400)]
switch ext2 to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoadd caching of ACLs in struct inode
Al Viro [Mon, 8 Jun 2009 23:50:45 +0000 (19:50 -0400)]
add caching of ACLs in struct inode

No helpers, no conversions yet.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agofs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls
Ankit Jain [Fri, 19 Jun 2009 18:28:07 +0000 (14:28 -0400)]
fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls

This patch adds ioctls to vfs for compatibility with legacy XFS
pre-allocation ioctls (XFS_IOC_*RESVP*). The implementation
effectively invokes sys_fallocate for the new ioctls.
Also handles the compat_ioctl case.
Note: These legacy ioctls are also implemented by OCFS2.

[AV: folded fixes from hch]

Signed-off-by: Ankit Jain <me@ankitjain.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agocleanup __writeback_single_inode
Christoph Hellwig [Mon, 8 Jun 2009 11:35:40 +0000 (13:35 +0200)]
cleanup __writeback_single_inode

There is no reason to for the split between __writeback_single_inode and
__sync_single_inode, the former just does a couple of checks before
tail-calling the latter.  So merge the two, and while we're at it split
out the I_SYNC waiting case for data integrity writers, as it's
logically separate function.  Finally rename __writeback_single_inode to
writeback_single_inode.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years ago... and the same for vfsmount id/mount group id
Al Viro [Wed, 24 Jun 2009 07:12:00 +0000 (03:12 -0400)]
... and the same for vfsmount id/mount group id

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoMake allocation of anon devices cheaper
Al Viro [Wed, 24 Jun 2009 06:05:18 +0000 (02:05 -0400)]
Make allocation of anon devices cheaper

Standard trick - add a new variable (start) such that
for each n < start n is known to be busy.  Allocation can
skip checking everything in [0..start) and if it returns
n, we can set start to n + 1.  Freeing below start sets
start to what we'd just freed.

Of course, it still sucks if we do something like
free 0
allocate
allocate
in a loop - still O(n^2) time.  However, on saner loads it
improves the things a lot and the entire thing is not worth
the trouble of switching to something with better worst-case
behaviour.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoupdate Documentation/filesystems/Locking
Christoph Hellwig [Fri, 19 Jun 2009 18:22:37 +0000 (20:22 +0200)]
update Documentation/filesystems/Locking

The rules for locking in many superblock operations has changed
significantly, so update the documentation for it.  Also correct some
older updates and ommissions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agodevpts: remove module-related code
H. Peter Anvin [Wed, 17 Jun 2009 04:15:04 +0000 (21:15 -0700)]
devpts: remove module-related code

These days, the devpts filesystem is closely integrated with the pty
memory management, and cannot be built as a module, even less removed
from the kernel.  Accordingly, remove all module-related stuff from
this filesystem.

[ v2: only remove code that's actually dead ]

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoVFS: Switch init_mount_tree() to use the new create_mnt_ns() helper
Trond Myklebust [Tue, 23 Jun 2009 21:29:49 +0000 (17:29 -0400)]
VFS: Switch init_mount_tree() to use the new create_mnt_ns() helper

Eliminates some duplicated code...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agovfs: fix nd->root leak in do_filp_open()
J. R. Okajima [Thu, 18 Jun 2009 14:30:15 +0000 (23:30 +0900)]
vfs: fix nd->root leak in do_filp_open()

commit 2a737871108de9ba8930f7650d549f1383767f8b "Cache root in nameidata"
introduced a new member nd->root, but forgot to put it in do_filp_open().

Signed-off-by: J. R. Okajima <hooanon05@yahoo.co.jp>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoreiserfs: remove stray unlock_super in reiserfs_resize
Christoph Hellwig [Fri, 19 Jun 2009 08:30:07 +0000 (10:30 +0200)]
reiserfs: remove stray unlock_super in reiserfs_resize

Reiserfs doesn't use lock_super anywhere internally, and ->remount_fs
which calls reiserfs_resize does have it currently but also expects it
to be held on return, so there's no business for the unlock_super here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked by Edward Shishkin <edward.shishkin@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoudf: remove redundant tests on unsigned
Roel Kluin [Mon, 22 Jun 2009 21:12:29 +0000 (23:12 +0200)]
udf: remove redundant tests on unsigned

first_block and goal are unsigned. When negative they are wrapped and caught by
the other test.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
8 years agobnx2: Fix the behavior of ethtool when ONBOOT=no
Ooiwa Naohiro [Wed, 24 Jun 2009 07:19:06 +0000 (00:19 -0700)]
bnx2: Fix the behavior of ethtool when ONBOOT=no

I found a little bug.

When configure in ifcfg-eth* is ONBOOT=no,
the behavior of ethtool command is wrong.

    # grep ONBOOT /etc/sysconfig/network-scripts/ifcfg-eth2
    ONBOOT=no
    # ethtool eth2 | tail -n1
            Link detected: yes

I think "Link detected" should be "no".

Signed-off-by: Ooiwa Naohiro <nooiwa@miraclelinux.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoasus-laptop: remove EXPERIMENTAL dependency
Corentin Chary [Fri, 19 Jun 2009 12:52:11 +0000 (14:52 +0200)]
asus-laptop: remove EXPERIMENTAL dependency

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoasus-laptop: use pr_fmt and pr_<level>
Corentin Chary [Fri, 19 Jun 2009 12:52:03 +0000 (14:52 +0200)]
asus-laptop: use pr_fmt and pr_<level>

Convert the unusual printk(ASUS_<level> uses to
the more standard pr_fmt and pr_<level>(.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoeeepc-laptop: cpufv updates
Corentin Chary [Tue, 16 Jun 2009 19:28:56 +0000 (19:28 +0000)]
eeepc-laptop: cpufv updates

Limit cpufv input to acceptables values.
Add an available_cpufv file to show available
presets.
Change cpufv ouput format from %d to %#x, it won't
break compatibility with existing userspace tools, but
it provide a more human readable output.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoeeepc-laptop: sync eeepc-laptop with asus_acpi
Corentin Chary [Tue, 16 Jun 2009 19:28:52 +0000 (19:28 +0000)]
eeepc-laptop: sync eeepc-laptop with asus_acpi

In the default Eee PC distribution, there is a modified
asus_acpi driver. eeepc-laptop is a cleaned version of this
driver. Sync ASL enum and getter/setters with asus_acpi.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoasus_acpi: Deprecate in favor of asus-laptop
Corentin Chary [Tue, 16 Jun 2009 19:28:48 +0000 (19:28 +0000)]
asus_acpi: Deprecate in favor of asus-laptop

asus-laptop have been merged in the kernel two years ago,
it is now stable and used by most distribution instead of
the old asus_acpi driver.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoacpi4asus: update MAINTAINER and KConfig links
Corentin Chary [Tue, 16 Jun 2009 19:28:47 +0000 (19:28 +0000)]
acpi4asus: update MAINTAINER and KConfig links

The bug tracker have moved from sourceforge to
http://dev.iksaif.net . The homepage of the project
is now http://acpi4asus.sf.net with links to the new
bug tracker. No change for the mailing list.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoasus-laptop: platform dev as parent for led and backlight
Corentin Chary [Tue, 16 Jun 2009 19:28:46 +0000 (19:28 +0000)]
asus-laptop: platform dev as parent for led and backlight

Makes asus-laptop platform device the parent device of
backlight and led classes.

With this patch, leds and backlight are also available in
/sys/devices/platform/asus-laptop/ like thinkpad_acpi.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoeeepc-laptop: enable camera by default
Pekka Enberg [Tue, 16 Jun 2009 19:28:45 +0000 (19:28 +0000)]
eeepc-laptop: enable camera by default

If we leave the camera disabled by default, userspace programs (e.g.
Skype, Cheese) leave the user out in the cold saying that the machine
"has no camera." Therefore, it's better to enable camera by default and
let people who really don't want it just disable the thing.

To reduce power usage you should enable USB autosuspend:
echo -n auto > /sys/bus/usb/drivers/uvcvideo/*:*/../power/level

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoMerge branch 'bjorn-notify' into release
Len Brown [Wed, 24 Jun 2009 05:22:20 +0000 (01:22 -0400)]
Merge branch 'bjorn-notify' into release

Conflicts:
drivers/platform/x86/eeepc-laptop.c

Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoMerge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzi...
Len Brown [Wed, 24 Jun 2009 05:19:50 +0000 (01:19 -0400)]
Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release

8 years agoACPI: Rename ACPI processor device bus ID
Zhao Yakui [Wed, 24 Jun 2009 03:46:44 +0000 (11:46 +0800)]
ACPI: Rename ACPI processor device bus ID

Some BIOS re-use the same processor bus id
in different scope:

\_SB.SCK0.CPU0
\_SB.SCK1.CPU0

But the (deprecated) /proc/acpi/ interface
assumes the bus-id's are unique, resulting in an OOPS
when the processor driver is loaded:

WARNING: at fs/proc/generic.c:590 proc_register+0x148/0x180()
Hardware name: Sunrise Ridge
proc_dir_entry 'processor/CPU0' already registered
Call Trace:
 [<ffffffff8023f7ef>] warn_slowpath+0xb1/0xe5
 [<ffffffff8036243b>] ? ida_get_new_above+0x190/0x1b1
 [<ffffffff803625a8>] ? idr_pre_get+0x5f/0x75
 [<ffffffff8030b2f6>] proc_register+0x148/0x180
 [<ffffffff8030b4ff>] proc_mkdir_mode+0x3d/0x52
 [<ffffffff8030b525>] proc_mkdir+0x11/0x13
 [<ffffffffa0014b89>] acpi_processor_start+0x755/0x9bc [processor]

Rename the processor device bus id. And the new bus id will be
generated as the following format:
CPU+ CPU ID

For example: If the cpu ID is 5, then the bus ID will be "CPU5".
If the CPU ID is 10, then the bus ID will be "CPUA".

Yes, this will change the directory names seen
in /proc/acpi/processor/* on some systems.
Before this patch, those directory names where
totally arbitrary strings based on the interal AML device strings.

http://bugzilla.kernel.org/show_bug.cgi?id=13612

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoacerhdf: Acer Aspire One fan control
Peter Feuerer [Sun, 21 Jun 2009 16:53:03 +0000 (18:53 +0200)]
acerhdf: Acer Aspire One fan control

Acerhdf is a driver for Acer Aspire One netbooks. It allows
to access the temperature sensor and to control the fan.

Signed-off-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoFix rule eviction order for AUDIT_DIR
Al Viro [Wed, 24 Jun 2009 04:02:38 +0000 (00:02 -0400)]
Fix rule eviction order for AUDIT_DIR

If syscall removes the root of subtree being watched, we
definitely do not want the rules refering that subtree
to be destroyed without the syscall in question having
a chance to match them.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
8 years agoAudit: clean up all op= output to include string quoting
Eric Paris [Thu, 11 Jun 2009 18:31:37 +0000 (14:31 -0400)]
Audit: clean up all op= output to include string quoting

A number of places in the audit system we send an op= followed by a string
that includes spaces.  Somehow this works but it's just wrong.  This patch
moves all of those that I could find to be quoted.

Example:

Change From: type=CONFIG_CHANGE msg=audit(1244666690.117:31): auid=0 ses=1
subj=unconfined_u:unconfined_r:auditctl_t:s0-s0:c0.c1023 op=remove rule
key="number2" list=4 res=0

Change To: type=CONFIG_CHANGE msg=audit(1244666690.117:31): auid=0 ses=1
subj=unconfined_u:unconfined_r:auditctl_t:s0-s0:c0.c1023 op="remove rule"
key="number2" list=4 res=0

Signed-off-by: Eric Paris <eparis@redhat.com>
8 years agoAudit: move audit_get_nd completely into audit_watch
Eric Paris [Thu, 11 Jun 2009 18:31:36 +0000 (14:31 -0400)]
Audit: move audit_get_nd completely into audit_watch

audit_get_nd() is only used  by audit_watch and could be more cleanly
implemented by having the audit watch functions call it when needed rather
than making the generic audit rule parsing code deal with those objects.

Signed-off-by: Eric Paris <eparis@redhat.com>
8 years agoaudit: seperate audit inode watches into a subfile
Eric Paris [Thu, 11 Jun 2009 18:31:36 +0000 (14:31 -0400)]
audit: seperate audit inode watches into a subfile

In preparation for converting audit to use fsnotify instead of inotify we
seperate the inode watching code into it's own file.  This is similar to
how the audit tree watching code is already seperated into audit_tree.c

Signed-off-by: Eric Paris <eparis@redhat.com>
8 years agoAudit: clean up audit_receive_skb
Eric Paris [Thu, 11 Jun 2009 18:31:35 +0000 (14:31 -0400)]
Audit: clean up audit_receive_skb

audit_receive_skb is hard to clearly parse what it is doing to the netlink
message.  Clean the function up so it is easy and clear to see what is going
on.

Signed-off-by: Eric Paris <eparis@redhat.com>
8 years agoAudit: cleanup netlink mesg handling
Eric Paris [Thu, 11 Jun 2009 18:31:35 +0000 (14:31 -0400)]
Audit: cleanup netlink mesg handling

The audit handling of netlink messages is all over the place.  Clean things
up, use predetermined macros, generally make it more readable.

Signed-off-by: Eric Paris <eparis@redhat.com>
8 years agoAudit: unify the printk of an skb when auditd not around
Eric Paris [Thu, 11 Jun 2009 18:31:35 +0000 (14:31 -0400)]
Audit: unify the printk of an skb when auditd not around

Remove code duplication of skb printk when auditd is not around in userspace
to deal with this message.

Signed-off-by: Eric Paris <eparis@redhat.com>
8 years agoAudit: dereferencing krule as if it were an audit_watch
Eric Paris [Thu, 11 Jun 2009 18:31:34 +0000 (14:31 -0400)]
Audit: dereferencing krule as if it were an audit_watch

audit_update_watch() runs all of the rules for a given watch and duplicates
them, attaches a new watch to them, and then when it finishes that process
and has called free on all of the old rules (ok maybe still inside the rcu
grace period) it proceeds to use the last element from list_for_each_entry_safe()
as if it were a krule rather than being the audit_watch which was anchoring
the list to output a message about audit rules changing.

This patch unfies the audit message from two different places into a helper
function and calls it from the correct location in audit_update_rules().  We
will now get an audit message about the config changing for each rule (with
each rules filterkey) rather than the previous garbage.

Signed-off-by: Eric Paris <eparis@redhat.com>
8 years agoAudit: better estimation of execve record length
Eric Paris [Thu, 11 Jun 2009 18:31:34 +0000 (14:31 -0400)]
Audit: better estimation of execve record length

The audit execve record splitting code estimates the length of the message
generated.  But it forgot to include the "" that wrap each string in its
estimation.  This means that execve messages with lots of tiny (1-2 byte)
arguments could still cause records greater than 8k to be emitted.  Simply
fix the estimate.

Signed-off-by: Eric Paris <eparis@redhat.com>
8 years agoAudit: fix audit watch use after free
Eric Paris [Thu, 11 Jun 2009 18:31:33 +0000 (14:31 -0400)]
Audit: fix audit watch use after free

When an audit watch is added to a parent the temporary watch inside the
original krule from userspace is freed.  Yet the original watch is used after
the real watch was created in audit_add_rules()

Signed-off-by: Eric Paris <eparis@redhat.com>
8 years agoACPI: video: DMI workaround broken Acer 7720 BIOS enabling display brightness
Zhang Rui [Mon, 22 Jun 2009 03:31:18 +0000 (11:31 +0800)]
ACPI: video: DMI workaround broken Acer 7720 BIOS enabling display brightness

http://bugzilla.kernel.org/show_bug.cgi?id=13121

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoACPI: run ACPI device hot removal in kacpi_hotplug_wq
Zhang Rui [Mon, 22 Jun 2009 03:31:16 +0000 (11:31 +0800)]
ACPI: run ACPI device hot removal in kacpi_hotplug_wq

Now that new interface is available,
convert to using it rather than creating a new kernel thread.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoACPI: Add the reference count to avoid unloading ACPI video bus twice
Zhao Yakui [Tue, 16 Jun 2009 03:23:13 +0000 (11:23 +0800)]
ACPI: Add the reference count to avoid unloading ACPI video bus twice

Sometimes both acpi video and i915 driver are compiled as modules.
And there exists the strict dependency between the two drivers.
The acpi video bus will be unloaded in course of unloading the i915 driver.
If we unload the acpi video driver, then the kernel oops will be triggered.

Add the reference count to avoid unloading the ACPI video bus twice.
The reference count should be checked before unregistering the acpi video bus.
If the reference count is already zero, it won't unregister it again.
And after the acpi video bus is already unregistered, the reference count
will be set to zero.

http://bugzilla.kernel.org/show_bug.cgi?id=13396

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoACPI: DMI to disable Vista compatibility on some Sony laptops
Zhang Rui [Mon, 22 Jun 2009 03:31:17 +0000 (11:31 +0800)]
ACPI: DMI to disable Vista compatibility on some Sony laptops

Linux claims Vista compatibility to the BIOS for a number of
reasons, but this brings hard lockup on some Sony laptops.

Disable Vista compatibility via DMI for these laptops unless
we can figure out what Vista is doing for this platform.
http://bugzilla.kernel.org/show_bug.cgi?id=12904

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoACPI: fix a deadlock in hotplug case
Zhang Rui [Tue, 23 Jun 2009 02:20:29 +0000 (10:20 +0800)]
ACPI: fix a deadlock in hotplug case

we used to run the hotplug code in keventd_wq.
But when hot removing the ACPI battery device,
power_supply_unregister invokes flush_scheduled_work.
This causes a deadlock. i.e
1. When dock is unplugged, all the hotplug code is run on kevent_wq.
2. the hotplug code removes all the child devices of dock device.
3. removing the child device may invoke flush_scheduled_work
4. flush_scheduled_work waits until all the work on kevent_wq to be
   finished, while this will never be true because the hotplug code
   is running on keventd_wq...

Introduce a new workqueue for hotplug in this patch.
http://bugzilla.kernel.org/show_bug.cgi?id=13533

Tested-by: Paul Martin <pm@debian.org>
Tested-by: Vojtech Gondzala <vojtech.gondzala@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoShow the physical device node of backlight class device.
Zhang Rui [Mon, 22 Jun 2009 03:31:14 +0000 (11:31 +0800)]
Show the physical device node of backlight class device.

Create symbol link from backlight class device to ACPI video device.

More and more laptops are shipped with multiple ACPI
video devices, while we export only one of them to userspace.

With this patch applied, we can know which ACPI video device
is used by "cat /sys/class/backlight/acpi_video0/device/path".

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
8 years agoMerge git://git.infradead.org/iommu-2.6
Linus Torvalds [Wed, 24 Jun 2009 02:49:24 +0000 (19:49 -0700)]
Merge git://git.infradead.org/iommu-2.6

* git://git.infradead.org/iommu-2.6:
  Intel-IOMMU, intr-remap: source-id checking
  Intel-IOMMU, intr-remap: set the whole 128bits of irte when modify/free it
  IOMMU Identity Mapping Support (drivers/pci/intel_iommu.c)

8 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec...
Linus Torvalds [Wed, 24 Jun 2009 02:36:02 +0000 (19:36 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jlbec/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
  ocfs2/trivial: Wrap ocfs2_sysfile_cluster_lock_key within define.
  ocfs2: Add lockdep annotations
  vfs: Set special lockdep map for dirs only if not set by fs
  ocfs2: Disable orphan scanning for local and hard-ro mounts
  ocfs2: Do not initialize lvb in ocfs2_orphan_scan_lock_res_init()
  ocfs2: Stop orphan scan as early as possible during umount
  ocfs2: Fix ocfs2_osb_dump()
  ocfs2: Pin journal head before accessing jh->b_committed_data
  ocfs2: Update atime in splice read if necessary.
  ocfs2: Provide the ocfs2_dlm_lvb_valid() stack API.

8 years agoMerge branch 'next-i2c' of git://aeryn.fluff.org.uk/bjdooks/linux
Linus Torvalds [Wed, 24 Jun 2009 02:35:42 +0000 (19:35 -0700)]
Merge branch 'next-i2c' of git://aeryn.fluff.org.uk/bjdooks/linux

* 'next-i2c' of git://aeryn.fluff.org.uk/bjdooks/linux:
  i2c: driver for the Synopsys DesignWare I2C controller

8 years agoqla3xxx: Don't sleep while holding lock.
Ron Mercer [Tue, 23 Jun 2009 09:00:02 +0000 (09:00 +0000)]
qla3xxx: Don't sleep while holding lock.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoqla3xxx: Give the PHY time to come out of reset.
Ron Mercer [Tue, 23 Jun 2009 09:00:01 +0000 (09:00 +0000)]
qla3xxx: Give the PHY time to come out of reset.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoipv4 routing: Ensure that route cache entries are usable and reclaimable with caching...
Neil Horman [Mon, 22 Jun 2009 10:18:53 +0000 (10:18 +0000)]
ipv4 routing: Ensure that route cache entries are usable and reclaimable with caching is off

When route caching is disabled (rt_caching returns false), We still use route
cache entries that are created and passed into rt_intern_hash once.  These
routes need to be made usable for the one call path that holds a reference to
them, and they need to be reclaimed when they're finished with their use.  To be
made usable, they need to be associated with a neighbor table entry (which they
currently are not), otherwise iproute_finish2 just discards the packet, since we
don't know which L2 peer to send the packet to.  To do this binding, we need to
follow the path a bit higher up in rt_intern_hash, which calls
arp_bind_neighbour, but not assign the route entry to the hash table.
Currently, if caching is off, we simply assign the route to the rp pointer and
are reutrn success.  This patch associates us with a neighbor entry first.

Secondly, we need to make sure that any single use routes like this are known to
the garbage collector when caching is off.  If caching is off, and we try to
hash in a route, it will leak when its refcount reaches zero.  To avoid this,
this patch calls rt_free on the route cache entry passed into rt_intern_hash.
This places us on the gc list for the route cache garbage collector, so that
when its refcount reaches zero, it will be reclaimed (Thanks to Alexey for this
suggestion).

I've tested this on a local system here, and with these patches in place, I'm
able to maintain routed connectivity to remote systems, even if I set
/proc/sys/net/ipv4/rt_cache_rebuild_count to -1, which forces rt_caching to
return false.

Signed-off-by: Neil Horman <nhorman@redhat.com>
Reported-by: Jarek Poplawski <jarkao2@gmail.com>
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: Move rx skb_orphan call to where needed
Herbert Xu [Mon, 22 Jun 2009 02:25:25 +0000 (02:25 +0000)]
net: Move rx skb_orphan call to where needed

In order to get the tun driver to account packets, we need to be
able to receive packets with destructors set.  To be on the safe
side, I added an skb_orphan call for all protocols by default since
some of them (IP in particular) cannot handle receiving packets
destructors properly.

Now it seems that at least one protocol (CAN) expects to be able
to pass skb->sk through the rx path without getting clobbered.

So this patch attempts to fix this properly by moving the skb_orphan
call to where it's actually needed.  In particular, I've added it
to skb_set_owner_[rw] which is what most users of skb->destructor
call.

This is actually an improvement for tun too since it means that
we only give back the amount charged to the socket when the skb
is passed to another socket that will also be charged accordingly.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Oliver Hartkopp <olver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoi2c: driver for the Synopsys DesignWare I2C controller
Baruch Siach [Mon, 22 Jun 2009 13:36:29 +0000 (16:36 +0300)]
i2c: driver for the Synopsys DesignWare I2C controller

The i2c Linux driver for the DesignWare i2c block of Synopsys, which is meant
for AMBA Peripheral Bus. This i2c block is used on SoC chips like the ARM9
based PVG610.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
8 years agoIntel-IOMMU, intr-remap: source-id checking
Weidong Han [Fri, 22 May 2009 16:41:15 +0000 (00:41 +0800)]
Intel-IOMMU, intr-remap: source-id checking

To support domain-isolation usages, the platform hardware must be
capable of uniquely identifying the requestor (source-id) for each
interrupt message. Without source-id checking for interrupt remapping
, a rouge guest/VM with assigned devices can launch interrupt attacks
to bring down anothe guest/VM or the VMM itself.

This patch adds source-id checking for interrupt remapping, and then
really isolates interrupts for guests/VMs with assigned devices.

Because PCI subsystem is not initialized yet when set up IOAPIC
entries, use read_pci_config_byte to access PCI config space directly.

Signed-off-by: Weidong Han <weidong.han@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>