Commit Graph

10709 Commits

Author SHA1 Message Date
Jeff Layton 979b0fea2d vm: add kzalloc_node() inline
To get zeroed out memory from a particular NUMA node.  To be used by
sunrpc.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
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>
2008-06-06 11:29:14 -07:00
Nadia Derbey 68aa0a206a ipc: restore MSGPOOL original value
When posting:

	[PATCH 1/8] Scaling msgmni to the amount of lowmem

(see http://article.gmane.org/gmane.linux.kernel/637849/) I changed the
MSGPOOL value to make it fit what is said in the man pages (i.e.  a size
in bytes).

But Michael Kerrisk rightly complained that this change could affect the
ABI.  So I'm posting this patch to make MSGPOOL expressed back in Kbytes.
Michael, on his side, has fixed the man page.

Signed-off-by: Nadia Derbey <Nadia.Derbey@bull.net>
Cc: Pierre Peiffer <peifferp@gmail.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Acked-by: Michael Kerrisk <mtk.manpages@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06 11:29:12 -07:00
Akinobu Mita 93b071139a introduce memory_read_from_buffer()
This patch introduces memory_read_from_buffer().

The only difference between memory_read_from_buffer() and
simple_read_from_buffer() is which address space the function copies to.

simple_read_from_buffer copies to user space memory.
memory_read_from_buffer copies to normal memory.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Doug Warzecha <Douglas_Warzecha@dell.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Cc: Abhay Salunke <Abhay_Salunke@dell.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Markus Rechberger <markus.rechberger@amd.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Bob Moore <robert.moore@intel.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Len Brown <lenb@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: Michael Holzheu <holzheu@de.ibm.com>
Cc: Brian King <brking@us.ibm.com>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Andrew Vasquez <linux-driver@qlogic.com>
Cc: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06 11:29:11 -07:00
Harvey Harrison 3527fb326f lib: export bitrev16
Bluetooth will be able to use this.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Dave Young <hidave.darkstar@gmail.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06 11:29:10 -07:00
David Woodhouse 44d1b980c7 Fix various old email addresses for dwmw2
Although if people have questions about ARCnet, perhaps it's _better_
for them to be mailing dwmw2@cam.ac.uk about it...

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06 11:29:10 -07:00
David Woodhouse 39028ec69b V4L/DVB (7166): [v4l] Add new user class controls and deprecate others
These were removed in commit 26d507fcfe:

> -#define V4L2_CID_HCENTER               (V4L2_CID_BASE+22)
> -#define V4L2_CID_VCENTER               (V4L2_CID_BASE+23)
> -#define V4L2_CID_LASTP1                        (V4L2_CID_BASE+24) /*
> last CID + 1 */
> +
> +/* Deprecated, use V4L2_CID_PAN_RESET and V4L2_CID_TILT_RESET */
> +#define V4L2_CID_HCENTER_DEPRECATED    (V4L2_CID_BASE+22)
> +#define V4L2_CID_VCENTER_DEPRECATED    (V4L2_CID_BASE+23)

But there was no warning in Documentation/feature-removal-schedule.txt
and I'm receiving reports that it's breaking userspace apps (the
gstreamer-v4l2 plugin breaks in Fedora rawhide). You can't just pull
things from the published userspace API like that.

Please can we revert the addition of _DEPRECATED to these ioctl
definitions. Perhaps we can add a runtime warning if they actually get
used? Or a compile-time warning if we can manage that?

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-05 06:35:47 -03:00
Linus Torvalds 3e387fcdc4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits)
  l2tp: Fix possible oops if transmitting or receiving when tunnel goes down
  tcp: Fix for race due to temporary drop of the socket lock in skb_splice_bits.
  tcp: Increment OUTRSTS in tcp_send_active_reset()
  raw: Raw socket leak.
  lt2p: Fix possible WARN_ON from socket code when UDP socket is closed
  USB ID for Philips CPWUA054/00 Wireless USB Adapter 11g
  ssb: Fix context assertion in ssb_pcicore_dev_irqvecs_enable
  libertas: fix command size for CMD_802_11_SUBSCRIBE_EVENT
  ipw2200: expire and use oldest BSS on adhoc create
  airo warning fix
  b43legacy: Fix controller restart crash
  sctp: Fix ECN markings for IPv6
  sctp: Flush the queue only once during fast retransmit.
  sctp: Start T3-RTX timer when fast retransmitting lowest TSN
  sctp: Correctly implement Fast Recovery cwnd manipulations.
  sctp: Move sctp_v4_dst_saddr out of loop
  sctp: retran_path update bug fix
  tcp: fix skb vs fack_count out-of-sync condition
  sunhme: Cleanup use of deprecated calls to save_and_cli and restore_flags.
  xfrm: xfrm_algo: correct usage of RIPEMD-160
  ...
2008-06-04 17:39:33 -07:00
Linus Torvalds 246dd412d3 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl
  libata: kill unused constants
  sata_mv: PHY_MODE4 cleanups
  [libata] ata_piix: more acer short cable quirks
  [libata] ACPI: Properly handle bay devices in dock stations
2008-06-04 08:36:56 -07:00
Alan Cox a57c1bade5 libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl
- Make ata_sff_altstatus private so nobody uses it by mistake
- Drop the 400nS delay from it

Add

ata_sff_irq_status	-	encapsulates the IRQ check logic

This function keeps the existing behaviour for altstatus using devices. I
actually suspect the logic was wrong before the changes but -rc isn't the
time to play with that

ata_sff_sync		-	ensure writes hit the device

Really we want an io* operation for 'is posted' eg ioisposted(ioaddr) so
that we can fix the nasty delay this causes on most systems.

- ata_sff_pause		-	400nS delay

Ensure the command hit the device and delay 400nS

- ata_sff_dma_pause

Ensure the I/O hit the device and enforce an HDMA1:0 transition delay.
Requires altstatus register exists, BUG if not so we don't risk
corruption in MWDMA modes. (UDMA the checksum will save your backside in
theory)

The only other complication then is devices with their own handlers.
rb532 can use dma_pause but scc needs to access its own altstatus
register for internal errata workarounds so directly call the drivers own
altstatus function.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-04 06:40:41 -04:00
Tejun Heo 4f0ebe3cc5 libata: kill unused constants
Kill a few unused constants.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-04 06:29:14 -04:00
Thomas Graf ab32cd793d route: Remove unused ifa_anycast field
The field was supposed to allow the creation of an anycast route by
assigning an anycast address to an address prefix. It was never
implemented so this field is unused and serves no purpose. Remove it.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-03 16:37:33 -07:00
Thomas Graf 1f9d11c7c9 route: Mark unused routing attributes as such
Also removes an unused policy entry for an attribute which is
only used in kernel->user direction.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-03 16:36:27 -07:00
Thomas Graf 51b77cae0d route: Mark unused route cache flags as such.
Also removes an obsolete check for the unused flag RTCF_MASQ.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-03 16:36:01 -07:00
Alan Cox 64e9159f5d serial_core: uart_set_ldisc infrastructure
The tty layer provides a callback that is used when the line discipline
is changed. Some hardware uses this to configure hardware specific
features such as IrDA mode on serial ports. Unfortunately the serial
layer does not provide this feature or pass it down to drivers.

Blackfin used to hack around this by rewriting the tty ops, but those are
now properly shared and const so the hack fails. Instead provide the
proper operations.

This change plus a follow up from the Blackfin guys is needed to avoid
blackfin losing features in this release.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-03 08:20:17 -07:00
Anton Vorontsov 63e14626ed mmc_spi: mmc_spi.h should include linux/interrupts.h
Since mmc_spi.h uses irqreturn_t type, it should include appropriate
header, otherwise build will break if users didn't include it (some of
them do not use interrupts).

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-02 15:27:10 -07:00
Linus Torvalds ab8cd81830 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  lguest: notify on empty
  virtio: force callback on empty.
  virtio_blk: fix endianess annotations
  virtio_config: fix len calculation of config elements
  virtio_net: another race with virtio_net and enable_cb
  virtio: An entropy device, as suggested by hpa.
  virtio_blk: allow read-only disks
  lguest: fix ugly <NULL> in /proc/interrupts
  virtio: set device index in common code.
  virtio: virtio_pci should not set bus_id.
  virtio: bus_id for devices should contain 'virtio'
  Fix crash in virtio_blk during modprobe ; rmmod ; modprobe
  lguest: use ioremap_cache, not ioremap
2008-05-30 10:20:03 -07:00
Linus Torvalds 7536d7be7b 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:
  Input: rename SW_RADIO to SW_RFKILL_ALL
  Input: gtco - fix double kfree in error handling path
  Input: pxa27x_keypad - miscellaneous fixes
  Input: atkbd - mark keyboard as disabled when suspending/unloading
  Input: apanel - remove duplicate include
  Input: wm9713 - support five wire panels
  Input: wm97xx-core - fix race on PHY init
  Input: wm97xx-core - fix driver name
  Input: wm97xx-core - report a phys for WM97xx touchscreens
  Input: i8042 - make sure Dritek quirk is invoked at resume
  Input: i8042 - add Dritek quirk for Acer TravelMate 660
2008-05-30 10:17:19 -07:00
Henrique de Moraes Holschuh 5adad01339 Input: rename SW_RADIO to SW_RFKILL_ALL
The SW_RADIO code for EV_SW events has a name that is not descriptive
enough of its intended function, and could induce someone to think
KEY_RADIO is its EV_KEY counterpart, which is false.

Rename it to SW_RFKILL_ALL, and document what this event is for.  Keep
the old name around, to avoid userspace ABI breaks.

The SW_RFKILL_ALL event is meant to be used by rfkill master switches.  It
is not bound to a particular radio switch type, and usually applies to all
types.  It is semantically tied to master rfkill switches that enable or
disable every radio in a system.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-05-30 10:40:46 -04:00
Rusty Russell b4f68be6c5 virtio: force callback on empty.
virtio allows drivers to suppress callbacks (ie. interrupts) for
efficiency (no locking, it's just an optimization).

There's a similar mechanism for the host to suppress notifications
coming from the guest: in that case, we ignore the suppression if the
ring is completely full.

It turns out that life is simpler if the host similarly ignores
callback suppression when the ring is completely empty: the network
driver wants to free up old packets in a timely manner, and otherwise
has to use a timer to poll.

We have to remove the code which ignores interrupts when the driver
has disabled them (again, it had no locking and hence was unreliable
anyway).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-30 15:09:46 +10:00
Christian Borntraeger 7757f09c70 virtio_blk: fix endianess annotations
Since commit 72e61eb40b (virtio: change config
to guest endian) config space is no longer fixed endian.

Lets change the virtio_blk_config variables.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-30 15:09:45 +10:00
Christian Borntraeger 7f31fe0500 virtio_config: fix len calculation of config elements
Rusty,

This patch is a prereq for the virtio_blk blocksize patch, please apply it
first.

Adding an u32 value to the virtio_blk_config unconvered a small bug the config
space defintions:
v is a pointer, to we have to use sizeof(*v) instead of sizeof(v).

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-30 15:09:45 +10:00
Rusty Russell f7f510ec19 virtio: An entropy device, as suggested by hpa.
Note that by itself, having a "hardware" random generator does very
little: you should probably run "rngd" in your guest to feed this into
the kernel entropy pool.

Included:
	virtio_rng: dont use vmalloced addresses for virtio

	If virtio_rng is build as a module, random_data is an address
	in vmalloc space. As virtio expects guest real addresses, this
	can cause any kind of funny behaviour, so lets allocate
	random_data dynamically with kmalloc.

	Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-30 15:09:44 +10:00
Christian Borntraeger 3ef5360954 virtio_blk: allow read-only disks
Hello Rusty,

sometimes it is useful to share a disk (e.g. usr). To avoid file system
corruption, the disk should be mounted read-only in that case. This patch
adds a new feature flag, that allows the host to specify, if the disk should
be considered read-only.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-30 15:09:44 +10:00
Linus Torvalds 916941b2bf Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
  driver-core: prepare for 2.6.27 api change by adding dev_set_name
2008-05-29 21:29:39 -07:00
Stephen Rothwell 413c239fad driver-core: prepare for 2.6.27 api change by adding dev_set_name
Create the dev_set_name function now so that various subsystems can
start changing over to it before other changes in 2.6.27 will make it
compulsory.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-05-29 21:10:01 -07:00