Commit Graph

30947 Commits

Author SHA1 Message Date
Bing Zhao
e45d8e534b libertas: add support for Marvell SD8688 chip
libertas: add support for Marvell SD8688 chip

Use RxPD->pkt_ptr to locate eth803 header in the packet
received since SD8688/v10 firmware allows a gap between
RxPD and eth803 header.

Set SDIO block size to 256 for CMD53.
The maximum block size for SD8688 WLAN function is set
to 512 in TPLFE_MAX_BLK_SIZE. But using 512 as block size
results upto 2K bytes data (4 blocks) being transferred
and causes buffer overflow in firmware.

Both changes above are backward compatible with earlier
firmware versions for SD8385/SD8686.

The SDIO_DEVICE_IDs for SD8688 chip are added in
include/linux/mmc/sdio_ids.h

Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:41 -04:00
Bob Copeland
6a362bb1c9 ath5k: add support for Fukato Datacask Jupiter LEDs
This adds support for the LEDs on the Jupiter netbook.

Reported-by: Martin Bammer <mrb74@gmx.at>

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:41 -04:00
Johannes Berg
25e47c18ac cfg80211: add cipher capabilities
This adds the necessary code and fields to let drivers specify
their cipher capabilities and exports them to userspace. Also
update mac80211 to export the ciphers it has.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:40 -04:00
Luis R. Rodriguez
6bad876662 cfg80211: send regulatory beacon hint events to userspace
This informs userspace when a change has occured on a world
roaming wiphy's channel which has lifted some restrictions
due to a regulatory beacon hint.

Because this is now sent to userspace through the regulatory
multicast group we remove the debug prints we used to use as
they are no longer necessary.

Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:40 -04:00
Johannes Berg
de95a54b1a mac80211: pass all probe request IEs to driver
Instead of just passing the cfg80211-requested IEs, pass
the locally generated ones as well.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:39 -04:00
Johannes Berg
18a8365992 cfg80211: introduce scan IE limit attribute
This patch introduces a new attribute for a wiphy that tells
userspace how long the information elements added to a probe
request frame can be at most. It also updates the at76 to
advertise that it cannot support that, and, for now until I
can fix that, iwlwifi too.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:39 -04:00
Jussi Kivilinna
06aa7afaaa cfg80211: add cfg80211_inform_bss
Added cfg80211_inform_bss() for full-mac devices to use.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:36 -04:00
Jouni Malinen
a3b8b0569f nl80211: Add Michael MIC failure event
Define a new nl80211 event, NL80211_CMD_MICHAEL_MIC_FAILURE, to be
used to notify user space about locally detected Michael MIC failures.
This matches with the MLME-MICHAELMICFAILURE.indication() primitive.

Since we do not actually have TSC in the skb anymore when
mac80211_ev_michael_mic_failure() is called, that function is changed
to take in the TSC as an optional parameter instead of as a
requirement to include the TSC after the hdr field (which we did not
really follow). For now, TSC is not included in the events from
mac80211, but it could be added at some point.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:28 -04:00
Jouni Malinen
53b46b8444 nl80211: Generate deauth/disassoc event for locally generated frames
Previously, nl80211 mlme events were generated only for received
deauthentication and disassociation frames. We need to do the same for
locally generated ones in order to let applications know that we
disconnected (e.g., when AP does not reply to a probe). Rename the
nl80211 and cfg80211 functions (s/rx_//) to make it clearer that they
are used for both received and locally generated frames.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:28 -04:00
Huang Weiyi
07f62d01c1 cfg80211: remove duplicated #include
Remove duplicated #include in include/net/cfg80211.h.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:28 -04:00
Johannes Berg
621cac8529 rfkill: remove user_claim stuff
Almost all drivers do not support user_claim, so remove it
completely and always report -EOPNOTSUPP to userspace. Since
userspace cannot really drive rfkill _anyway_ (due to the
odd restrictions imposed by the documentation) having this
code is just pointless.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:27 -04:00
Johannes Berg
c1c6b14b22 rfkill: remove deprecated state constants
I only did superficial review, but these constants are stupid
to have and without proper warnings nobody will review the
code anyway, no amount of shouting will help.

Also fix wimax to use correct states.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:27 -04:00
Michael S. Tsirkin
6f26c9a755 tun: fix tun_chr_aio_write so that aio works
aio_write gets const struct iovec * but tun_chr_aio_write casts this to struct
iovec * and modifies the iovec. As a result, attempts to use io_submit
to send packets to a tun device fail with weird errors such as EINVAL.

Since tun is the only user of skb_copy_datagram_from_iovec, we can
fix this simply by changing the later so that it does not
touch the iovec passed to it.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21 05:42:46 -07:00
Michael S. Tsirkin
0a1ec07a67 net: skb_copy_datagram_const_iovec()
There's an skb_copy_datagram_iovec() to copy out of a paged skb,
but it modifies the iovec, and does not support starting
at an offset in the destination. We want both in tun.c, so let's
add the function.

It's a carbon copy of skb_copy_datagram_iovec() with enough changes to
be annoying.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21 05:42:44 -07:00
Patrick McHardy
b1b67dd45a net: factor out ethtool invocation of vlan/macvlan drivers
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21 02:00:51 -07:00
Peter Holik
03ad032bb7 export usbnet_get_ethernet_addr from usbnet and fixed cdc_ether.c
because of using the same function get_ethernet_addr as cdc_ether.c
i export usbnet_get_ethernet_addr from usbnet and fixed cdc_ether
(suggested by Oliver Neukum).

Signed-off-by: Peter Holik <peter@holik.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21 01:55:59 -07:00
Florian Westphal
a0f82f64e2 syncookies: remove last_synq_overflow from struct tcp_sock
last_synq_overflow eats 4 or 8 bytes in struct tcp_sock, even
though it is only used when a listening sockets syn queue
is full.

We can (ab)use rx_opt.ts_recent_stamp to store the same information;
it is not used otherwise as long as a socket is in listen state.

Move linger2 around to avoid splitting struct mtu_probe
across cacheline boundary on 32 bit arches.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-20 02:25:26 -07:00
David S. Miller
a54bfa40fd Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-04-16 17:35:26 -07:00
David S. Miller
134ffb4cad Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6 2009-04-16 16:32:29 -07:00
Patrick McHardy
98d500d66c netfilter: nf_nat: add support for persistent mappings
The removal of the SAME target accidentally removed one feature that is
not available from the normal NAT targets so far, having multi-range
mappings that use the same mapping for each connection from a single
client. The current behaviour is to choose the address from the range
based on source and destination IP, which breaks when communicating
with sites having multiple addresses that require all connections to
originate from the same IP address.

Introduce a IP_NAT_RANGE_PERSISTENT option that controls whether the
destination address is taken into account for selecting addresses.

http://bugzilla.kernel.org/show_bug.cgi?id=12954

Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-04-16 18:33:01 +02:00
Herbert Xu
76620aafd6 gro: New frags interface to avoid copying shinfo
It turns out that copying a 16-byte area at ~800k times a second
can be really expensive :) This patch redesigns the frags GRO
interface to avoid copying that area twice.

The two disciples of the frags interface have been converted.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16 02:02:07 -07:00
Anatolij Gustschin
a8729eb302 phylib: Allow early-out in phy_change
Marvell 88E1121R Dual PHY device can be hardware-configured
to use shared interrupt pin for both PHY ports. For such
PHY configurations using shared PHY interrupt phy_interrupt()
handler will also schedule a work for PHY port which didn't
cause an interrupt.

This patch adds a possibility for PHY drivers to provide
did_interrupt() function which reports if the PHY (or a PHY
port in a multi-PHY device) generated an interrupt. This
function is called in phy_change() as phy_change() shouldn't
proceed if it is invoked for a PHY which didn't cause an
interrupt. So check for interrupt originator in phy_change()
to allow early-out.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13 14:51:23 -07:00
David S. Miller
83400207a0 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	MAINTAINERS
2009-04-13 14:41:05 -07:00
Linus Torvalds
b534d388c2 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: (22 commits)
  Input: i8042 - add HP DV9700 to the noloop list
  Input: arrange drivers/input/misc/Makefile in alphabetical order
  Input: add AD7879 Touchscreen driver
  Input: add AD7877 touchscreen driver
  Input: bf54x-keys - fix typo in warning
  Input: add driver for S1 button of rb532
  Input: generic driver for rotary encoders on GPIOs
  Input: hilkbd - fix crash when removing hilkbd module
  Input: atkbd - add quirk for Fujitsu Siemens Amilo PA 1510
  Input: atkbd - consolidate force release quirk setup
  Input: add accelerated touchscreen support for Marvell Zylonite
  Input: ucb1400_ts, mainstone-wm97xx - add BTN_TOUCH events
  Input: wm97xx - use disable_irq_nosync() for Mainstone
  Input: wm97xx - add BTN_TOUCH event to wm97xx to use it with Android
  Input: fix polling of /proc/bus/input/devices
  Input: psmouse - add newline to OLPC HGPK touchpad debugging
  Input: ati_remote2 - check module params
  Input: ati_remote2 - add per device attrs
  Input: ati_remote2 - complete suspend support
  Input: stop autorepeat timer on key release
  ...
2009-04-13 11:37:23 -07:00
Rafael J. Wysocki
c751085943 PM/Hibernate: Wait for SCSI devices scan to complete during resume
There is a race between resume from hibernation and the asynchronous
scanning of SCSI devices and to prevent it from happening we need to
call scsi_complete_async_scans() during resume from hibernation.

In addition, if the resume from hibernation is userland-driven, it's
better to wait for all device probes in the kernel to complete before
attempting to open the resume device.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-13 11:37:07 -07:00
Linus Torvalds
8255309b88 Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tracing/filters: return proper error code when writing filter file
  tracing/filters: allow user input integer to be oct or hex
  tracing/filters: fix NULL pointer dereference
  tracing/filters: NIL-terminate user input filter
  ftrace: Output REC->var instead of __entry->var for trace format
  Make __stringify support variable argument macros too
  tracing: fix document references
  tracing: fix splice return too large
  tracing: update file->f_pos when splice(2) it
  tracing: allocate page when needed
  tracing: disable seeking for trace_pipe_raw
2009-04-13 11:31:28 -07:00
Linus Torvalds
bf20753c0c Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  lockdep: continue lock debugging despite some taints
  lockdep: warn about lockdep disabling after kernel taint
2009-04-13 11:30:26 -07:00
Linus Torvalds
8371f87c99 Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c: Let new-style drivers implement attach_adapter
  i2c: Fix sparse warnings for I2C_BOARD_INFO()
  i2c-voodoo3: Deprecate in favor of tdfxfb
  i2c-algo-pca: Fix use of uninitialized variable in debug message
2009-04-13 08:32:48 -07:00
Serge E. Hallyn
0ad30b8fd5 add some long-missing capabilities to fs_mask
When POSIX capabilities were introduced during the 2.1 Linux
cycle, the fs mask, which represents the capabilities which having
fsuid==0 is supposed to grant, did not include CAP_MKNOD and
CAP_LINUX_IMMUTABLE.  However, before capabilities the privilege
to call these did in fact depend upon fsuid==0.

This patch introduces those capabilities into the fsmask,
restoring the old behavior.

See the thread starting at http://lkml.org/lkml/2009/3/11/157 for
reference.

Note that if this fix is deemed valid, then earlier kernel versions (2.4
and 2.2) ought to be fixed too.

Changelog:
	[Mar 23] Actually delete old CAP_FS_SET definition...
	[Mar 20] Updated against J. Bruce Fields's patch

Reported-by: Igor Zhbanov <izh1979@gmail.com>
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Cc: stable@kernel.org
Cc: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-13 08:32:28 -07:00
Linus Torvalds
d811f236d9 Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  percpu: unbreak alpha percpu
  mutex: have non-spinning mutexes on s390 by default
2009-04-13 08:22:43 -07:00
Ben Hutchings
c758e8cffe i2c: Fix sparse warnings for I2C_BOARD_INFO()
Since the first argument to I2C_BOARD_INFO() must be a string constant,
there is no need to parenthesise it, and adding parentheses results in
an invalid initialiser for char[].  gcc obviously accepts this syntax as
an extension, but sparse complains, e.g.:

drivers/net/sfc/boards.c:173:2: warning: array initialized from parenthesized string constant

Therefore, remove the parentheses.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-04-13 17:02:14 +02:00
Frederic Weisbecker
9eeba6138c lockdep: warn about lockdep disabling after kernel taint
Impact: provide useful missing info for developers

Kernel taint can occur in several situations such as warnings,
load of prorietary or staging modules, bad page, etc...

But when such taint happens, a developer might still be working on
the kernel, expecting that lockdep is still enabled. But a taint
disables lockdep without ever warning about it.
Such a kernel behaviour doesn't really help for kernel development.

This patch adds this missing warning.

Since the taint is done most of the time after the main message that
explain the real source issue, it seems safe to warn about it inside
add_taint() so that it appears at last, without hurting the main
information.

v2: Use a generic helper to disable lockdep instead of an
    open coded xchg().

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1239412638-6739-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-12 16:10:51 +02:00
Vlad Yasevich
499923c7a3 ipv6: Fix NULL pointer dereference with time-wait sockets
Commit b2f5e7cd3d
(ipv6: Fix conflict resolutions during ipv6 binding)
introduced a regression where time-wait sockets were
not treated correctly.  This resulted in the following:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000062
IP: [<ffffffff805d7d61>] ipv4_rcv_saddr_equal+0x61/0x70
...
Call Trace:
[<ffffffffa033847b>] ipv6_rcv_saddr_equal+0x1bb/0x250 [ipv6]
[<ffffffffa03505a8>] inet6_csk_bind_conflict+0x88/0xd0 [ipv6]
[<ffffffff805bb18e>] inet_csk_get_port+0x1ee/0x400
[<ffffffffa0319b7f>] inet6_bind+0x1cf/0x3a0 [ipv6]
[<ffffffff8056d17c>] ? sockfd_lookup_light+0x3c/0xd0
[<ffffffff8056ed49>] sys_bind+0x89/0x100
[<ffffffff80613ea2>] ? trace_hardirqs_on_thunk+0x3a/0x3c
[<ffffffff8020bf9b>] system_call_fastpath+0x16/0x1b

Tested-by: Brian Haley <brian.haley@hp.com>
Tested-by: Ed Tomlinson <edt@aei.ca>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-11 01:53:06 -07:00
Linus Torvalds
7933a3cfba Remove stale include/asm-mn10300/.gitignore file
Requested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-10 14:07:51 -07:00
Tejun Heo
066123a535 percpu: unbreak alpha percpu
For the time being, move the generic percpu_*() accessors to
linux/percpu.h.

asm-generic/percpu.h is meant to carry generic stuff for low level
stuff - declarations, definitions and pointer offset calculation
and so on but not for generic interface.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-10 21:36:18 +02:00
Linus Torvalds
d848223808 Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300:
  Separate out the proc- and unit-specific header directories from the general
  Move arch headers from include/asm-mn10300/ to arch/mn10300/include/asm/.
2009-04-10 10:01:49 -07:00
Linus Torvalds
5de4c51d2a Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-frv
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-frv:
  FRV: Move to arch/frv/include/asm/
  FRV: Fix indentation errors to keep git-am happy when moving arch header files
2009-04-10 07:47:13 -07:00
Zhaolei
8f7c2c3731 Make __stringify support variable argument macros too
For example:

  __stringify(__entry->irq, __entry->ret)

will now convert it to:

  "REC->irq, REC->ret"

It also still supports single arguments as the old macro did.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <49DC6751.30308@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-10 15:48:52 +02:00
David Howells
da7616610c Move arch headers from include/asm-mn10300/ to arch/mn10300/include/asm/.
Signed-off-by: David Howells <dhowells@redhat.com>
2009-04-10 14:19:03 +01:00
David Howells
e69cc92788 FRV: Move to arch/frv/include/asm/
Move arch headers from include/asm-frv/ to arch/frv/include/asm/.

Signed-off-by: David Howells <dhowells@redhat.com>
2009-04-10 01:48:06 +01:00
David Howells
187934655f FRV: Fix indentation errors to keep git-am happy when moving arch header files
Fix indentation errors to keep git-am happy when moving arch header files.

Signed-off-by: David Howells <dhowells@redhat.com>
2009-04-10 01:48:01 +01:00
Linus Torvalds
6594d0b1cd Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (27 commits)
  xsysace: Fix dereferencing of cf_id after hd_driveid removal
  at91_ide: turn on PIO 6 support
  at91_ide: remove unused ide_mm_{outb,inb}
  ide-cd: reverse NOT_READY sense key logic
  ide: refactor tf_read() method
  ide: refactor tf_load() method
  ide: call write_devctl() method from tf_read() method
  ide: move common code out of tf_load() method
  ide: simplify 'struct ide_taskfile'
  ide: replace IDE_TFLAG_* flags by IDE_VALID_*
  ide-cd: fix intendation in cdrom_decode_status()
  ide-cd: unify handling of fs and pc requests in cdrom_decode_status()
  ide-cd: convert cdrom_decode_status() to use switch statements
  ide-cd: update debugging support
  ide-cd: respect REQ_QUIET for fs requests in cdrom_decode_status()
  ide: remove unused #include <linux/version.h>
  tx4939ide: Fix tx4939ide_{in,out}put_data_swap argument
  tx493[89]ide: Remove big endian version of tx493[89]ide_tf_{load,read}
  ide-cd: carve out an ide_cd_breathe()-helper for fs write requests
  ide-cd: move status checking into the IRQ handler
  ...
2009-04-09 16:43:30 -07:00
David Howells
6fde836b54 FRV: Use <asm-generic/pgtable.h> in NOMMU mode
asm-frv/pgtable.h could just #include <asm-generic/pgtable.h> in NOMMU mode
rather than #defining macros for lazy MMU and CPU stuff.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-09 10:46:05 -07:00
Linus Torvalds
c2ea122cd7 Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tracing: consolidate documents
  blktrace: pass the right pointer to kfree()
  tracing/syscalls: use a dedicated file header
  tracing: append a comma to INIT_FTRACE_GRAPH
2009-04-09 10:37:46 -07:00
Linus Torvalds
17b2e9bf27 Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: do not count frozen tasks toward load
  sched: refresh MAINTAINERS entry
  sched: Print sched_group::__cpu_power in sched_domain_debug
  cpuacct: add per-cgroup utime/stime statistics
  posixtimers, sched: Fix posix clock monotonicity
  sched_rt: don't allocate cpumask in fastpath
  cpuacct: make cpuacct hierarchy walk in cpuacct_charge() safe when rcupreempt is used -v2
2009-04-09 10:37:28 -07:00
Linus Torvalds
422a253483 Merge branches 'core-fixes-for-linus', 'irq-fixes-for-linus' and 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  printk: fix wrong format string iter for printk
  futex: comment requeue key reference semantics

* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  irq: fix cpumask memory leak on offstack cpumask kernels

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  posix-timers: fix RLIMIT_CPU && setitimer(CPUCLOCK_PROF)
  posix-timers: fix RLIMIT_CPU && fork()
  timers: add missing kernel-doc
2009-04-09 10:35:30 -07:00
Linus Torvalds
df5529297e Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm:
  dm kcopyd: fix callback race
  dm kcopyd: prepare for callback race fix
  dm: implement basic barrier support
  dm: remove dm_request loop
  dm: rework queueing and suspension
  dm: simplify dm_request loop
  dm: split DMF_BLOCK_IO flag into two
  dm: rearrange dm_wq_work
  dm: remove limited barrier support
  dm: add integrity support
2009-04-09 08:01:21 -07:00
Herbert Xu
97c18e2c7a module: try_then_request_module must wait
Since the whole point of try_then_request_module is to retry
the operation after a module has been loaded, we must wait for
the module to fully load.

Otherwise all sort of things start breaking, e.g., you won't
be able to read your encrypted disks on the first attempt.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Tested-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-09 07:49:44 -07:00
Nathan Lynch
e3c8ca8336 sched: do not count frozen tasks toward load
Freezing tasks via the cgroup freezer causes the load average to climb
because the freezer's current implementation puts frozen tasks in
uninterruptible sleep (D state).

Some applications which perform job-scheduling functions consult the
load average when making decisions.  If a cgroup is frozen, the load
average does not provide a useful measure of the system's utilization
to such applications.  This is especially inconvenient if the job
scheduler employs the cgroup freezer as a mechanism for preempting low
priority jobs.  Contrast this with using SIGSTOP for the same purpose:
the stopped tasks do not count toward system load.

Change task_contributes_to_load() to return false if the task is
frozen.  This results in /proc/loadavg behavior that better meets
users' expectations.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Nigel Cunningham <nigel@tuxonice.net>
Tested-by: Nigel Cunningham <nigel@tuxonice.net>
Cc: <stable@kernel.org>
Cc: containers@lists.linux-foundation.org
Cc: linux-pm@lists.linux-foundation.org
Cc: Matt Helsley <matthltc@us.ibm.com>
LKML-Reference: <20090408194512.47a99b95@manatee.lan>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-09 07:37:02 +02:00
Frederic Weisbecker
47788c58e6 tracing/syscalls: use a dedicated file header
Impact: fix build warnings and possibe compat misbehavior on IA64

Building a kernel on ia64 might trigger these ugly build warnings:

CC      arch/ia64/ia32/sys_ia32.o
In file included from arch/ia64/ia32/sys_ia32.c:55:
arch/ia64/ia32/ia32priv.h:290:1: warning: "elf_check_arch" redefined
In file included from include/linux/elf.h:7,
                 from include/linux/module.h:14,
                 from include/linux/ftrace.h:8,
                 from include/linux/syscalls.h:68,
                 from arch/ia64/ia32/sys_ia32.c:18:
arch/ia64/include/asm/elf.h:19:1: warning: this is the location of the previous definition
[...]

sys_ia32.c includes linux/syscalls.h which in turn includes linux/ftrace.h
to import the syscalls tracing prototypes.

But including ftrace.h can pull too much things for a low level file,
especially on ia64 where the ia32 private headers conflict with higher
level headers.

Now we isolate the syscall tracing headers in their own lightweight file.

Reported-by: Tony Luck <tony.luck@intel.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jason Baron <jbaron@redhat.com>
Cc: "Frank Ch. Eigler" <fche@redhat.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Jiaying Zhang <jiayingz@google.com>
Cc: Michael Rubin <mrubin@google.com>
Cc: Martin Bligh <mbligh@google.com>
Cc: Michael Davidson <md@google.com>
LKML-Reference: <20090408184058.GB6017@nowhere>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-09 05:43:32 +02:00