Commit Graph

30925 Commits

Author SHA1 Message Date
Dmitry Monakhov 8268f5a741 deny partial write for loop dev fd
Partial write can be easily supported by LO_CRYPT_NONE mode, but it is not
easy in LO_CRYPT_CRYPTOAPI case, because of its block nature.  I don't know
who still used cryptoapi, but theoretically it is possible.  So let's leave
things as they are.  Loop device doesn't support partial write before
Nick's "write_begin/write_end" patch set, and let's it behave the same way
after.

Signed-off-by: Dmitriy Monakhov <dmonakhov@openvz.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:55 -07:00
Nick Piggin afddba49d1 fs: introduce write_begin, write_end, and perform_write aops
These are intended to replace prepare_write and commit_write with more
flexible alternatives that are also able to avoid the buffered write
deadlock problems efficiently (which prepare_write is unable to do).

[mark.fasheh@oracle.com: API design contributions, code review and fixes]
[akpm@linux-foundation.org: various fixes]
[dmonakhov@sw.ru: new aop block_write_begin fix]
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Dmitriy Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:55 -07:00
Nick Piggin 557ed1fa26 remove ZERO_PAGE
The commit b5810039a5 contains the note

  A last caveat: the ZERO_PAGE is now refcounted and managed with rmap
  (and thus mapcounted and count towards shared rss).  These writes to
  the struct page could cause excessive cacheline bouncing on big
  systems.  There are a number of ways this could be addressed if it is
  an issue.

And indeed this cacheline bouncing has shown up on large SGI systems.
There was a situation where an Altix system was essentially livelocked
tearing down ZERO_PAGE pagetables when an HPC app aborted during startup.
This situation can be avoided in userspace, but it does highlight the
potential scalability problem with refcounting ZERO_PAGE, and corner
cases where it can really hurt (we don't want the system to livelock!).

There are several broad ways to fix this problem:
1. add back some special casing to avoid refcounting ZERO_PAGE
2. per-node or per-cpu ZERO_PAGES
3. remove the ZERO_PAGE completely

I will argue for 3. The others should also fix the problem, but they
result in more complex code than does 3, with little or no real benefit
that I can see.

Why? Inserting a ZERO_PAGE for anonymous read faults appears to be a
false optimisation: if an application is performance critical, it would
not be doing many read faults of new memory, or at least it could be
expected to write to that memory soon afterwards. If cache or memory use
is critical, it should not be working with a significant number of
ZERO_PAGEs anyway (a more compact representation of zeroes should be
used).

As a sanity check -- mesuring on my desktop system, there are never many
mappings to the ZERO_PAGE (eg. 2 or 3), thus memory usage here should not
increase much without it.

When running a make -j4 kernel compile on my dual core system, there are
about 1,000 mappings to the ZERO_PAGE created per second, but about 1,000
ZERO_PAGE COW faults per second (less than 1 ZERO_PAGE mapping per second
is torn down without being COWed). So removing ZERO_PAGE will save 1,000
page faults per second when running kbuild, while keeping it only saves
less than 1 page clearing operation per second. 1 page clear is cheaper
than a thousand faults, presumably, so there isn't an obvious loss.

Neither the logical argument nor these basic tests give a guarantee of no
regressions. However, this is a reasonable opportunity to try to remove
the ZERO_PAGE from the pagefault path. If it is found to cause regressions,
we can reintroduce it and just avoid refcounting it.

The /dev/zero ZERO_PAGE usage and TLB tricks also get nuked.  I don't see
much use to them except on benchmarks.  All other users of ZERO_PAGE are
converted just to use ZERO_PAGE(0) for simplicity. We can look at
replacing them all and maybe ripping out ZERO_PAGE completely when we are
more satisfied with this solution.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus "snif" Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:53 -07:00
Andy Whitcroft 540557b943 sparsemem: record when a section has a valid mem_map
We have flags to indicate whether a section actually has a valid mem_map
associated with it.  This is never set and we rely solely on the present bit
to indicate a section is valid.  By definition a section is not valid if it
has no mem_map and there is a window during init where the present bit is set
but there is no mem_map, during which pfn_valid() will return true
incorrectly.

Use the existing SECTION_HAS_MEM_MAP flag to indicate the presence of a valid
mem_map.  Switch valid_section{,_nr} and pfn_valid() to this bit.  Add a new
present_section{,_nr} and pfn_present() interfaces for those users who care to
know that a section is going to be valid.

[akpm@linux-foundation.org: coding-syle fixes]
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:51 -07:00
Maik Broemme cc84634f29 Add support for Wacom WACF007 and WACF008 to serial pnp driver
Notebook manufacturer seems to built a newer Wacom pen enabled tablet to
recent tablet pcs which are not recognized by the serial pnp driver.

Attached is a patch which makes the newer Wacom WACF007 and WACF008 tablets
useable with the serial driver.  The device is fully compatible with it.

Signed-off-by: Maik Broemme <mbroemme@plusserver.de>
Cc: Andrey Panin <pazke@orbita1.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
Atsushi Nemoto 37a6c7d009 serial_txx9: Use UPF_FIXED_PORT
The UPF_FIXED_PORT flags was introduced in 2.6.22 and it can be used
instead of the driver specific verify_port routine.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
Guennadi Liakhovetski b3b708fa27 wake up from a serial port
Enable wakeup from serial ports, make it run-time configurable over sysfs,
e.g.,

echo enabled > /sys/devices/platform/serial8250.0/tty/ttyS0/power/wakeup

Requires

# CONFIG_SYSFS_DEPRECATED is not set

Following suggestions from Alan and Russell moved the may_wake_up checks
to serial_core.c. This time actually tested - it does even work. Could
someone, please, verify, that put_device after device_find_child is
correct?

Also would be nice to test with a Natsemi UART, that can wake up the system,
if such systems exist.

For this you just have to apply the patch below, issue the above "echo"
command to one of your Natsemi port, suspend and resume your system, and
verify that your Natsemi port still works.  If you are actually capable of
waking up the system from that port, would be nice to test that as well.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
Alan Cox bf0df636e5 8250_pci: Autodetect mainpine cards
Add support for a whole range of boards. Some are partly autodetected but
not fully correctly others (PCI Express notably) not at all. Stick all
the right entries in.

Thanks to Mainpine for information and testing.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
Atsushi Nemoto 7201863ca7 serial_txx9: cleanup includes
Do not include some header files already indluded by serial_core.h.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
James Bottomley 43d9f7fda1 pcmcia: use DMA_MASK_NONE for the default for all pcmcia devices
Most non cardbus devices can't do dma, so flag them as such in the device
creation routine.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Natalie Protasevich <protasnb@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
Eric Leblond 64da82efae Add support for PCMCIA card Sierra WIreless AC850
Add support for Sierra Wireless AC850 which has the same Ids as the
AC710/750 but has a different firmware.

Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
Daniel Ritz dc0cf6a263 pcmcia: cistpl: use get_unaligned() in CIS parsing
Based on a patch by Haavard Skinnemoen posted to linux-pcmcia, but using
static inlines for readability reasons.  this should fix PCMCIA an AVR32

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
Yoichi Yuasa b5446b514c move a few definitions to au1000_xxs1500.c
Only a few definitions is in xxs1500.h .
They can be move to au1000_xxs1500.c .

[m.kozlowski@tuxland.pl: fix unbalanced parenthesis]
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
Milan Plzik 24d6572b4f pxa2xx PCMCIA timing issue on iPAQ H5550
Recently I've been trying to get working PCMCIA interface on H5000 ipaq
series, using dual PCMCIA sleeve.  So far things work correctly, but I had
to do one modification to drivers/pcmcia/pxa2xx_base.c to get the interface
working with orinoco gold PCMCIA card (wired pcnet_cs ethernet card worked
even without this modification).

The issue has something to do with assert time on PCMCIA bus, but I'm not
really sure what -- I found the working value just by trial&error approach.
 I'm not sure how is the assert value in pxa2xx_mcxx_asst calculated (I
know, simple formula, but the reason why is it calculated that way is not
obvious for me), neither that my modification is correct.  It just works
with iPAQ.

Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:49 -07:00
Jan Engelhardt 42c5323cdd Use menuconfig objects: PCMCIA
Use menuconfigs instead of menus, so the whole menu can be disabled at once
instead of going through all options.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:49 -07:00
Randy Dunlap fd39c86b3d docbook: fix usb content
Fix USB docbook warnings.

Warning(linux-2.6.23-git8//include/linux/usb/gadget.h:487): No description found for parameter 'g'
Warning(linux-2.6.23-git8//include/linux/usb/gadget.h:506): No description found for parameter 'g'

Warning(linux-2.6.23-git8//drivers/usb/core/hub.c:1416): No description found for parameter 'usb_dev'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 17:56:36 -07:00
Randy Dunlap c5d0e6a0d2 docbook: fix libata content
Fix libata docbook warnings.

Warning(linux-2.6.23-git8//drivers/ata/libata-scsi.c:3251): No description found for parameter 'dev'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 17:56:36 -07:00
Randy Dunlap 23f9b75e79 docbook: fix kernel-api content
Fix kernel-api docbook warnings.

Warning(linux-2.6.23-git8//drivers/message/fusion/mptscsih.c:2618): No description found for parameter 'sc'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 17:56:36 -07:00
Linus Torvalds 65a6ec0d72 Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (95 commits)
  [ARM] 4578/1: CM-x270: PCMCIA support
  [ARM] 4577/1: ITE 8152 PCI bridge support
  [ARM] 4576/1: CM-X270 machine support
  [ARM] pxa: Avoid pxa_gpio_mode() in gpio_direction_{in,out}put()
  [ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c
  [ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c
  [ARM] pxa: Make cpu_is_pxaXXX dependent on configuration symbols
  [ARM] pxa: PXA3xx base support
  [NET] smc91x: fix PXA DMA support code
  [SERIAL] Fix console initialisation ordering
  [ARM] pxa: tidy up arch/arm/mach-pxa/Makefile
  [ARM] Update arch/arm/Kconfig for drivers/Kconfig changes
  [ARM] 4600/1: fix kernel build failure with build-id-supporting binutils
  [ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23)
  [ARM] Rename consistent_sync() as dma_cache_maint()
  [ARM] 4572/1: ep93xx: add cirrus logic edb9307 support
  [ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support
  [ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32
  [ARM] 4594/1: ns9xxx: use the new gpio functions
  [ARM] 4593/1: ns9xxx: implement generic clockevents
  ...
2007-10-15 16:08:50 -07:00
Jeff Garzik 3d8a67b9f0 [libata] pata_cs5536: new API build fix
This driver was using hooks that were very recently removed.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-15 18:10:12 -04:00
Linus Torvalds a52cefc80f Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits)
  [IPV6]: Consolidate the ip6_pol_route_(input|output) pair
  [TCP]: Make snd_cwnd_cnt 32-bit
  [TCP]: Update the /proc/net/tcp documentation
  [NETNS]: Don't panic on creating the namespace's loopback
  [NEIGH]: Ensure that pneigh_lookup is protected with RTNL
  [INET]: kmalloc+memset -> kzalloc in frag_alloc_queue
  [ISDN]: Fix compile with CONFIG_ISDN_X25 disabled.
  [IPV6]: Replace sk_buff ** with sk_buff * in input handlers
  [SELINUX]: Update for netfilter ->hook() arg changes.
  [INET]: Consolidate the xxx_put
  [INET]: Small cleanup for xxx_put after evictor consolidation
  [INET]: Consolidate the xxx_evictor
  [INET]: Consolidate the xxx_frag_destroy
  [INET]: Consolidate xxx_the secret_rebuild
  [INET]: Consolidate the xxx_frag_kill
  [INET]: Collect common frag sysctl variables together
  [INET]: Collect frag queues management objects together
  [INET]: Move common fields from frag_queues in one place.
  [TG3]: Fix performance regression on 5705.
  [ISDN]: Remove local copy of device name to make sure renames work.
  ...
2007-10-15 14:06:58 -07:00
Jeremy Katz fba956c46a Map volume and brightness events on thinkpads
There are standard keycodes for brightness and volume; map the events to
emit them so that things work properly

Signed-off-by: Jeremy Katz <katzj@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 13:54:40 -07:00
Linus Torvalds f2e1d89f9b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
  Input: use full RCU API
  Input: remove tsdev interface
  Input: add support for Blackfin BF54x Keypad controller
  Input: appletouch - another fix for idle reset logic
  HWMON: hdaps - switch to using input-polldev
  Input: add support for SEGA Dreamcast keyboard
  Input: omap-keyboard - don't pretend we support changing keymap
  Input: lifebook - fix X and Y axis range
  Input: usbtouchscreen - add support for GeneralTouch devices
  Input: fix open count handling in input interfaces
  Input: keyboard - add CapsShift lock
  Input: adbhid - produce all CapsLock key events
  Input: ALPS - add signature for ThinkPad R61
  Input: jornada720_kbd - send MSC_SCAN events
  Input: add support for the HP Jornada 7xx (710/720/728) touchscreen
  Input: add support for HP Jornada 7xx onboard keyboard
  Input: add support for HP Jornada onboard keyboard (HP6XX)
  Input: ucb1400_ts - use schedule_timeout_uninterruptible
  Input: xpad - fix dependancy on LEDS class
  Input: auto-select INPUT for MAC_EMUMOUSEBTN option
  ...

Resolved conflicts manually in drivers/hwmon/applesmc.c: converting from
a class device to a device and converting to use input-polldev created a
few apparently trivial clashes..
2007-10-15 13:41:39 -07:00
Linus Torvalds 85ffdd28be Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] pata_pcmcia: Add additional id string (corsair, 1GB)
  libata: prevent devices with blank model names from being DMA blacklisted
  ata_piix: SATA 2port controller port map fix
  pata_cs5536: ATA driver for Geode companion chip
  libata: add ST9160821AS / 3.CCD to NCQ blacklist
  libata: fix revalidation issuing after configuration commands
  [libata] sata_nv: add SW NCQ support for MCP51/MCP55/MCP61
  [libata] pata_sil680: Add MMIO support
2007-10-15 13:31:14 -07:00
Linus Torvalds 43d39ae0cf Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (35 commits)
  xen-netfront: rearrange netfront structure to separate tx and rx
  netdev: convert non-obvious instances to use ARRAY_SIZE()
  ucc_geth: Fix build break introduced by commit 09f75cd7bf
  gianfar: Fix regression caused by new napi interface
  gianfar: Cleanup compile warning caused by 0795af57
  gianfar: Fix compile regression caused by bea3348e
  add new prom.h for AU1x00
  update AU1000 get_ethernet_addr()
  MIPSsim: General cleanup
  Jazzsonic: Fix warning about unused variable.
  Remove msic_dcr_read() in axon_msi.c
  Use dcr_host_t.base in dcr_unmap()
  Add dcr_host_t.base in dcr_read()/dcr_write()
  Use dcr_host_t.base in ibm_emac_mal
  Update ibm_newemac to use dcr_host_t.base
  tehuti: possible leak in bdx_probe
  TC35815: Fix build
  SAA9730: Fix build
  AR7 ethernet
  myri10ge: update driver version to 1.3.2-1.287
  ...
2007-10-15 13:30:35 -07:00
Jeremy Fitzhardinge 84284d3c1d xen-netfront: rearrange netfront structure to separate tx and rx
Keep tx and rx elements separate on different cachelines to prevent
bouncing.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 16:13:36 -04:00
Geert Uytterhoeven 63bd8c48e0 Atari keyboard: incorporate additional review comments
Atari keyboard: incorporate additional review comments:
  o Kill reference to source file name
  o Return error value from input_register_device() instead of -ENOMEM

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 13:08:55 -07:00
Alejandro Martinez Ruiz e9edda697e netdev: convert non-obvious instances to use ARRAY_SIZE()
This will convert remaining non-obvious or naive calculations of array
sizes to use ARRAY_SIZE() macro.

Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 15:57:38 -04:00
Pavel Emelyanov 9d6dda32c7 [NETNS]: Don't panic on creating the namespace's loopback
When the loopback device is failed to initialize inside the new 
namespaces, panic() is called. Do not do it when the namespace 
in question is not the init_net.

Plus cleanup the error path a bit.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15 12:55:33 -07:00
Linus Torvalds 355aaffdaf Reinstate lost flush_ioremap_region() fix to pxa2xx-flash driver
Commit 90833fdab8 ("[ARM] 4554/1: replace
consistent_sync() with flush_ioremap_region()") introduced a new
"flush_ioremap_region()" function to be used by the MTD mainstone-flash
and lubbock-flash drivers to fix a regression from around 2.6.18.

Those drivers were independently merged into a single driver by Todd
Poynor in commit e644f7d628 ("[MTD] MAPS:
Merge Lubbock and Mainstone drivers into common PXA2xx driver")

Later, those two commits were merged into the main MTD tree by commit
b160292cc2 ("Merge Linux 2.6.23") by David
Woodhouse, but in that merge, the fix to use flush_iomap_region() got
lost (as it was to files that now no longer existed).

This reinstates the fix in the new driver.

Noticed-by: Russell King <rmk@arm.linux.org.uk>
Tested-and-acked-by: Nicolas Pitre <nico@cam.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jared Hulbert <jaredeh@gmail.com>
Cc: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 12:55:20 -07:00
Denis V. Lunev c749b01351 [ISDN]: Fix compile with CONFIG_ISDN_X25 disabled.
On Mon, Oct 15, 2007 at 06:44:56PM +0400, Denis V. Lunev wrote:
Compilation fix. The problem appears after
7c076d1de869256848dacb8de0050a3a390f95df by Karsten Keil <kkeil@suse.de>

Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15 12:52:20 -07:00
Kristoffer Ericson 77ec15cc26 [libata] pata_pcmcia: Add additional id string (corsair, 1GB)
Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-15 15:51:42 -04:00
Linus Torvalds c596cc46ba scsi/gdth: fix crash in gdth_timeout if no gdth controllers found
If the gdth module is loaded (or compiled in), the gdth_timeout function
gets started even if no actual gdth controllers are found b the probing.

That ends up not only being unnecessary, but also causes a crash due to
the function blindly just trying to pick the first entry off the
"gdth_instances" list, and accessing it - which obviously doesn't work
if the list is empty!

Noticed by Ingo Molnar.

Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 12:46:16 -07:00
Andrew Paprocki 317b50b8ad libata: prevent devices with blank model names from being DMA blacklisted
The strn_pattern_cmp routine does not handle a blank name parameter
properly. The only patterns which should match a blank name are "*"
and an explicit "". If the function is passed a blank name in current
code, it will always match against the patt parameter. The bug manifests
itself as the device with the empty model name always matching the first
device in the DMA blacklist, forcing it to revert to PIO mode.

Signed-off-by: Andrew Paprocki <andrew@ishiboo.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-15 15:44:22 -04:00
Jason Gaston 8f73a68801 ata_piix: SATA 2port controller port map fix
This patch adds a port map for ICH9 and ICH8 SATA controllers that have only 2 ports available in that mode.

Signed-off-by:  Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 15:44:20 -04:00
Martin K. Petersen 3957df6160 pata_cs5536: ATA driver for Geode companion chip
This is a driver for the ATA controller on the Geode CS5536 companion
chip.  The PCI device ID for this device was previously claimed by
pata_amd.c but the PIO timings were not correct.  This driver also
works around a bug in some BIOSes that handle unaligned access to the
PCI config registers poorly.  Finally, the driver allows fallback to
using MSR registers for configuration on BIOSes that are truly
broken.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 15:44:18 -04:00
Michael Chan 114342f2d3 [TG3]: Fix performance regression on 5705.
A performance regression was introduced by the following commit:

    commit ee6a99b539
    Author: Michael Chan <mchan@broadcom.com>
    Date:   Wed Jul 18 21:49:10 2007 -0700

    [TG3]: Fix msi issue with kexec/kdump.

In making that change, the PCI latency timer and cache line size
registers were not restored after chip reset.  On the 5705, the
latency timer gets reset to 0 during chip reset and this causes
very poor performance.

Update version to 3.84.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15 12:26:38 -07:00
Karsten Keil faca94ffae [ISDN]: Remove local copy of device name to make sure renames work.
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15 12:26:37 -07:00
Al Viro a9d41192b9 [NIU]: getting rid of __ucmpdi2 in niu.o
By the time we get to that switch by PHY type, we have 8bit
value.  No need to keep it in u64 when u8 would do.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15 12:26:33 -07:00
David S. Miller e6a5fdf56e [NIU]: Fix write past end of array in niu_pci_probe_sprom().
Noticed by Coverity checker and reported by Adrian Bunk.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15 12:26:31 -07:00
Tejun Heo 1358796008 libata: add ST9160821AS / 3.CCD to NCQ blacklist
ST9160821AS / 3.CCD does spurious completions too.  Blacklist it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 15:24:54 -04:00
Tejun Heo f58db80267 libata: fix revalidation issuing after configuration commands
After commands which can change device configuration, EH is scheduled
to revalidate and reconfigure the device.  Host link was incorrectly
used unconditionally when scheduling EH action.  This resulted in
bogus revalidation request and mismatched configuration between device
and driver.  Fix it.

This bug was reported by Igor Durdanovic.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Igor Durdanovic <idurdanovic@comcast.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 15:24:54 -04:00
Kuan Luo f140f0f12f [libata] sata_nv: add SW NCQ support for MCP51/MCP55/MCP61
Add the Software NCQ support to sata_nv.c for MCP51/MCP55/MCP61 SATA
controller.  NCQ function is disable by default, you can enable it
with 'swncq=1'.  NCQ will be turned off if the drive is Maxtor on
MCP51 or MCP55 rev 0xa2 platform.

[akpm@linux-foundation.org: build fix]
Signed-off-by: Kuan Luo <kluo@nvidia.com>
Signed-off-by: Peer Chen <pchen@nvidia.com>
Cc: Zoltan Boszormenyi <zboszor@dunaweb.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-15 15:16:53 -04:00
Benjamin Herrenschmidt 2b9e68f728 [libata] pata_sil680: Add MMIO support
This patch adds MMIO support to the pata_sil680 for taskfile IOs,
based on what the old siimage does.

I haven't bothered changing the chip setup stuff from PCI config
cycles to MMIO though (siimage does it), I don't think it matters,
I've only adapted it to use MMIO for taskfile accesses.

I've tested it on a Cell blade and it seems to work fine.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 14:58:51 -04:00
Emil Medve 88a15f2e28 ucc_geth: Fix build break introduced by commit 09f75cd7bf
drivers/net/ucc_geth.c: In function 'ucc_geth_rx':
drivers/net/ucc_geth.c:3483: error: 'dev' undeclared (first use in this function)
drivers/net/ucc_geth.c:3483: error: (Each undeclared identifier is reported only once
drivers/net/ucc_geth.c:3483: error: for each function it appears in.)
make[2]: *** [drivers/net/ucc_geth.o] Error 1

Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 14:49:12 -04:00
Li Yang 293c851339 gianfar: Fix regression caused by new napi interface
Protect all new napi function calls with CONFIG_GFAR_NAPI.  Otherwise
the driver will stop working when CONFIG_GFAR_NAPI disabled.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 14:41:34 -04:00
Li Yang 20ef2bb008 gianfar: Cleanup compile warning caused by 0795af57
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 14:41:34 -04:00
Li Yang 94e8cc35bc gianfar: Fix compile regression caused by bea3348e
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 14:41:34 -04:00
Yoichi Yuasa 25b31cb118 add new prom.h for AU1x00
Add new prom.h for AU1x00.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 14:38:25 -04:00
Yoichi Yuasa 2de889235d update AU1000 get_ethernet_addr()
Update AU1000 get_ethernet_addr().
Three functions were brought together in one.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 14:38:24 -04:00