Commit Graph

170007 Commits

Author SHA1 Message Date
Linus Torvalds
0bb3246265 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  acerhdf: return temperature in milidegree instead of degree
  thinkpad-acpi: fix detection of old ThinkPads
  thinkpad-acpi: fix sign of ERESTARTSYS return
  ACPI: Add Thinkpad T400, T500 to OSI(Linux) white-list
  ACPICA: Silence the warning about _BIF returning the buffer
  ACPI: DMI init_set_sci_en_on_resume for HP-Compaq C700
2009-11-30 13:56:21 -08:00
Linus Torvalds
1486b2014a Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Enable ACPI PDC handshake for VIA/Centaur CPUs
2009-11-30 13:55:48 -08:00
Linus Torvalds
6c49e2700f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: AACI: fix recording bug
  ALSA: AACI: fix AC97 multiple-open bug
  ASoC: AIC23: Fixing infinite loop in resume path
  ASoC: Fix suspend with active audio streams
2009-11-30 13:55:20 -08:00
Linus Torvalds
23e041dbaa Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/fb: fix FBIOGET/PUT_VSCREENINFO pixel clock handling
  drm: make sure page protections are updated after changing vm_flags
  drm/radeon/kms: Report vga connector is connected according to ddc_probe
  drm: mm always protect change to unused_nodes with unused_lock spinlock
  drm/radeon/kms: Disable TV load detect on RS400,RC410,RS480
  drm/radeon/kms: read back register before writing in IIO.
  drm/radeon/kms: fix handling of d1/d2 vga
  drm: work around EDIDs with bad htotal/vtotal values
  drm/radeon/kms: resume AGP by calling init.
2009-11-30 13:54:10 -08:00
Linus Torvalds
f507334503 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
  shdma: fix initialization error handling
  ioat3: fix pq completion versus channel deallocation race
  async_tx: build-time toggling of async_{syndrome,xor}_val dma support
  dmaengine: include xor/pq validate in device_has_all_tx_types()
  ioat2,3: report all uncorrectable errors
  ioat3: specify valid address for disabled-Q or disabled-P
  ioat2,3: disable asynchronous error notifications
  ioat3: dca and raid operations are incompatible
  ioat: silence "dca disabled" messages
2009-11-30 13:53:53 -08:00
Linus Torvalds
50b767d0ba Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  Staging: octeon-ethernet: Assign proper MAC addresses.
  Staging: Octeon: Use symbolic values for irq numbers.
  MIPS: Octeon: Fix compile error in drivers/staging/octeon/ethernet-mdio.c
2009-11-30 13:53:14 -08:00
David Woodhouse
199bc9ff5c jffs2: Fix memory corruption in jffs2_read_inode_range()
In 2.6.23 kernel, commit a32ea1e1f9
("Fix read/truncate race") fixed a race in the generic code, and as a
side effect, now do_generic_file_read() can ask us to readpage() past
the i_size. This seems to be correctly handled by the block routines
(e.g. block_read_full_page() fills the page with zeroes in case if
somebody is trying to read past the last inode's block).

JFFS2 doesn't handle this; it assumes that it won't be asked to read
pages which don't exist -- and thus that there will be at least _one_
valid 'frag' on the page it's being asked to read. It will fill any
holes with the following memset:

  memset(buf, 0, min(end, frag->ofs + frag->size) - offset);

When the 'closest smaller match' returned by jffs2_lookup_node_frag() is
actually on a previous page and ends before 'offset', that results in:

  memset(buf, 0, <huge unsigned negative>);

Hopefully, in most cases the corruption is fatal, and quickly causing
random oopses, like this:

  root@10.0.0.4:~/ltp-fs-20090531# ./testcases/kernel/fs/ftest/ftest01
  Unable to handle kernel paging request for data at address 0x00000008
  Faulting instruction address: 0xc01cd980
  Oops: Kernel access of bad area, sig: 11 [#1]
  [...]
  NIP [c01cd980] rb_insert_color+0x38/0x184
  LR [c0043978] enqueue_hrtimer+0x88/0xc4
  Call Trace:
  [c6c63b60] [c004f9a8] tick_sched_timer+0xa0/0xe4 (unreliable)
  [c6c63b80] [c0043978] enqueue_hrtimer+0x88/0xc4
  [c6c63b90] [c0043a48] __run_hrtimer+0x94/0xbc
  [c6c63bb0] [c0044628] hrtimer_interrupt+0x140/0x2b8
  [c6c63c10] [c000f8e8] timer_interrupt+0x13c/0x254
  [c6c63c30] [c001352c] ret_from_except+0x0/0x14
  --- Exception: 901 at memset+0x38/0x5c
      LR = jffs2_read_inode_range+0x144/0x17c
  [c6c63cf0] [00000000] (null) (unreliable)

This patch fixes the issue, plus fixes all LTP tests on NAND/UBI with
JFFS2 filesystem that were failing since 2.6.23 (seems like the bug
above also broke the truncation).

Reported-By: Anton Vorontsov <avorontsov@ru.mvista.com>
Tested-By: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-30 13:52:40 -08:00
Geert Uytterhoeven
c69f677cc8 fbdev: Migrate mailing lists to vger
The fbdev mailing lists at SourceForge have been migrated to a single
mailing list at kernel.org: linux-fbdev@vger.kernel.org.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-30 13:46:04 -08:00
Linus Torvalds
9f1680794f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig:
  kconfig: Fix make O=<dir> local{mod,yes}config
2009-11-30 13:45:22 -08:00
Linus Torvalds
7d34f46426 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:
  sata_fsl: Split hard and soft reset
2009-11-30 13:43:30 -08:00
Linus Torvalds
6e80133f7f Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-fscache
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-fscache: (31 commits)
  FS-Cache: Provide nop fscache_stat_d() if CONFIG_FSCACHE_STATS=n
  SLOW_WORK: Fix GFS2 to #include <linux/module.h> before using THIS_MODULE
  SLOW_WORK: Fix CIFS to pass THIS_MODULE to slow_work_register_user()
  CacheFiles: Don't log lookup/create failing with ENOBUFS
  CacheFiles: Catch an overly long wait for an old active object
  CacheFiles: Better showing of debugging information in active object problems
  CacheFiles: Mark parent directory locks as I_MUTEX_PARENT to keep lockdep happy
  CacheFiles: Handle truncate unlocking the page we're reading
  CacheFiles: Don't write a full page if there's only a partial page to cache
  FS-Cache: Actually requeue an object when requested
  FS-Cache: Start processing an object's operations on that object's death
  FS-Cache: Make sure FSCACHE_COOKIE_LOOKING_UP cleared on lookup failure
  FS-Cache: Add a retirement stat counter
  FS-Cache: Handle pages pending storage that get evicted under OOM conditions
  FS-Cache: Handle read request vs lookup, creation or other cache failure
  FS-Cache: Don't delete pending pages from the page-store tracking tree
  FS-Cache: Fix lock misorder in fscache_write_op()
  FS-Cache: The object-available state can't rely on the cookie to be available
  FS-Cache: Permit cache retrieval ops to be interrupted in the initial wait phase
  FS-Cache: Use radix tree preload correctly in tracking of pages to be stored
  ...
2009-11-30 13:33:48 -08:00
Julia Lawall
cc9a2c8301 arch/alpha/kernel: Add kmalloc NULL tests
Check that the result of kmalloc is not NULL before passing it to other
functions.

The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression *x;
identifier f;
constant char *C;
@@

x = \(kmalloc\|kcalloc\|kzalloc\)(...);
... when != x == NULL
    when != x != NULL
    when != (x || ...)
(
kfree(x)
f(...,C,...,x,...)
|
*f(...,x,...)
|
*x->f
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2009-11-30 15:38:19 -05:00
Julia Lawall
04d8a9db89 arch/alpha/kernel/sys_ruffian.c: Use DIV_ROUND_CLOSEST
The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

@depends on haskernel@
expression x,__divisor;
@@

- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2009-11-30 15:37:25 -05:00
Pete Eberlein
e49bd72f9c V4L/DVB (13372): staging/go7007: fix mutex function usage for s2250
Fix mutex function usage, which was overlooked in a previous patch.

Signed-off-by: Pete Eberlein <pete@sensoray.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-30 17:49:15 -02:00
Mauro Carvalho Chehab
7924326fef staging/go7007: Fix compilation by re-adding the missing s2250-loader.h
As pointed by Stefan Lippers-Hollmann <s.L-H@gmx.de>,

Commit:	fd9a40da1d broke s2250
compilation.

This patch re-adds the missing s2250-loader.h

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-30 17:37:20 -02:00
Helight.Xu
9eaa192d89 x86: Fix a section mismatch in arch/x86/kernel/setup.c
copy_edd() should be __init.
warning msg:
WARNING: vmlinux.o(.text+0x7759): Section mismatch in reference from the
function copy_edd() to the variable .init.data:boot_params
The function copy_edd() references
the variable __initdata boot_params.
This is often because copy_edd lacks a __initdata
annotation or the annotation of boot_params is wrong.

Signed-off-by: ZhenwenXu <helight.xu@gmail.com>
LKML-Reference: <4B139F8F.4000907@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-11-30 11:16:49 -08:00
Johannes Berg
827d42c9ac mac80211: fix spurious delBA handling
Lennert Buytenhek noticed that delBA handling in mac80211
was broken and has remotely triggerable problems, some of
which are due to some code shuffling I did that ended up
changing the order in which things were done -- this was

  commit d75636ef9c
  Author: Johannes Berg <johannes@sipsolutions.net>
  Date:   Tue Feb 10 21:25:53 2009 +0100

    mac80211: RX aggregation: clean up stop session

and other parts were already present in the original

  commit d92684e660
  Author: Ron Rindjunsky <ron.rindjunsky@intel.com>
  Date:   Mon Jan 28 14:07:22 2008 +0200

      mac80211: A-MPDU Tx add delBA from recipient support

The first problem is that I moved a BUG_ON before various
checks -- thereby making it possible to hit. As the comment
indicates, the BUG_ON can be removed since the ampdu_action
callback must already exist when the state is != IDLE.

The second problem isn't easily exploitable but there's a
race condition due to unconditionally setting the state to
OPERATIONAL when a delBA frame is received, even when no
aggregation session was ever initiated. All the drivers
accept stopping the session even then, but that opens a
race window where crashes could happen before the driver
accepts it. Right now, a WARN_ON may happen with non-HT
drivers, while the race opens only for HT drivers.

For this case, there are two things necessary to fix it:
 1) don't process spurious delBA frames, and be more careful
    about the session state; don't drop the lock

 2) HT drivers need to be prepared to handle a session stop
    even before the session was really started -- this is
    true for all drivers (that support aggregation) but
    iwlwifi which can be fixed easily. The other HT drivers
    (ath9k and ar9170) are behaving properly already.

Reported-by: Lennert Buytenhek <buytenh@marvell.com>
Cc: stable@kernel.org
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-30 13:55:51 -05:00
Johannes Berg
4253119acf mac80211: fix two remote exploits
Lennert Buytenhek noticed a remotely triggerable problem
in mac80211, which is due to some code shuffling I did
that ended up changing the order in which things were
done -- this was in

  commit d75636ef9c
  Author: Johannes Berg <johannes@sipsolutions.net>
  Date:   Tue Feb 10 21:25:53 2009 +0100

    mac80211: RX aggregation: clean up stop session

The problem is that the BUG_ON moved before the various
checks, and as such can be triggered.

As the comment indicates, the BUG_ON can be removed since
the ampdu_action callback must already exist when the
state is OPERATIONAL.

A similar code path leads to a WARN_ON in
ieee80211_stop_tx_ba_session, which can also be removed.

Cc: stable@kernel.org [2.6.29+]
Cc: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-30 13:52:21 -05:00
Gertjan van Wingerde
e3a41d7b99 .gitignore: Add bzip2 compressed files
We can have bzip2 compressed images nowadays.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-30 08:39:36 -08:00
Helge Deller
33a932d143 parisc: fix unwind with recent gcc versions
kernel unwinding is broken with gcc >= 4.x.  Part of the problem is that
binutils seems very sensitive to where the unwind information is stored.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-30 08:20:24 -08:00
Russell King
8ee763b9c8 ALSA: AACI: fix recording bug
pcm->r[1].slots is the double rate slot information, not the
capture information.  For capture, 'pcm' will already be the
capture ac97 pcm structure.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-30 14:50:55 +01:00
Russell King
4acd57c3de ALSA: AACI: fix AC97 multiple-open bug
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-30 14:50:53 +01:00
Takashi Iwai
77a9d3eb77 Merge branch 'fix/asoc' into fix/misc 2009-11-30 14:50:37 +01:00
David S. Miller
0cae200eec b44: Fix wedge when using netconsole.
Fixes kernel bugzilla #14691

Due to the way netpoll works, it is perfectly legal to see
NAPI already scheduled when new device events are pending
in b44_interrupt().

So logging a message about it is wrong and in fact harmful.

Based upon a patch by Andreas Mohr.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-30 00:13:28 -08:00
Dan Carpenter
40be261dfd wan: cosa: drop chan->wsem on error path
The other paths all drop chan->wsem.  This was found by a static
checker (smatch).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-30 00:06:51 -08:00
Tom Zanussi
8ea339adc0 perf trace/scripting: Add Fedora libperl install note to doc
Fedora needs perl-ExtUtils-Embed for Perl scripting, which also
brings along libperl-devel; note this info for the convenience
of Fedora users.

Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: anton@samba.org
Cc: hch@infradead.org
LKML-Reference: <1259565529-6407-5-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-30 09:04:01 +01:00
Tom Zanussi
61381de050 perf trace/scripting: Fix Perl common_* access functions
The common_* functions (e.g. common_pc(), etc) are exported as
common_* but named get_common_*, resulting in unresolved
subroutine errors when executing scripts.

Make the internal and external names match.

Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: anton@samba.org
Cc: hch@infradead.org
LKML-Reference: <1259565529-6407-4-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-30 09:04:00 +01:00
Tom Zanussi
e136323c5a perf trace/scripting: Ignore shadowed variable warning for perf-trace-perl.c
The debugging versions of the ENTER and LEAVE internal perl
macros, used when embedding perl, define a local block with a
my_perl perl variable that shadows a global variable of the same
name, which is also the name expected by the embedding API for
the embedded interpreter.

Since we don't have control over the code generated in this case
(it's an externality) and can't get rid of the warning, ignore it.

Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: anton@samba.org
Cc: hch@infradead.org
LKML-Reference: <1259565529-6407-3-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-30 09:04:00 +01:00
Tom Zanussi
f8be4231f8 perf trace/scripting: Silence PERL_EMBED_* backtick errors
The backtick shell substitutions for PERL_EMBED_LDOPT/CCOPT make
a lot of noise on stderr if Embed.pm isn't installed - this
silences them.

Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: anton@samba.org
Cc: hch@infradead.org
LKML-Reference: <1259565529-6407-2-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-30 09:03:59 +01:00
Florian Fainelli
3c91c7ae84 ep93xx-eth: check for zero MAC address on probe, not on device open
If we happen to have registered the driver without passing
a MAC address, we will print a zero MAC address and register
the interface with this invalid address, this is confusin. This
patch moves the checking of a valid ethernet address and the
generation of a random one down from the open function to
the probe function.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29 23:50:32 -08:00
Russell King - ARM Linux
d5ccd67bb7 NET: smc91x: Fix irq flags
smc91x.h defines SMC_IRQ_FLAGS to be -1 when it wants the interrupt
flags to be taken from the resource structure.  However, d280ead
changed this to checking for non-zero resource flags.

Unfortunately, this means that on some platforms, we end up passing
'-1' to request_irq rather than the desired result.  Combine the two
conditions into one so that the IRQ flags are taken from the resource
if either SMC_IRQ_FLAGS is -1 or the resource flags specify an
interrupt trigger.

This restores network on at least the Versatile platform.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29 23:47:14 -08:00
Steve Glendinning
6c53b1b15e smsc9420: prevent BUG() if ethtool is called with interface down
This patch fixes a null pointer dereference BUG() if ethtool is used on
an smsc9420 interface while it is down, because the phy_dev is only
allocated while the interface is up.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29 23:14:45 -08:00
Ivan Vecera
cc098dc705 r8169: restore mac addr in rtl8169_remove_one and rtl_shutdown
The newer chipsets (all PCI-E) are known that they need full power cycle
(AC or battery removal) to reset MAC address to a  hardwired one. Previous
patch to address this problem loads the original MAC address from EEPROM.
But it brought other problem for which it is necessary to introduce a new
module parameter.
However, it might suffice to restore the initial MAC address before
shutdown/reboot/kexec and when removing the module.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29 23:12:52 -08:00
David Ford
bbf31bf18d ipv4: additional update of dev_net(dev) to struct *net in ip_fragment.c, NULL ptr OOPS
ipv4 ip_frag_reasm(), fully replace 'dev_net(dev)' with 'net', defined
previously patched into 2.6.29.

Between 2.6.28.10 and 2.6.29, net/ipv4/ip_fragment.c was patched,
changing from dev_net(dev) to container_of(...).  Unfortunately the goto
section (out_fail) on oversized packets inside ip_frag_reasm() didn't
get touched up as well.  Oversized IP packets cause a NULL pointer
dereference and immediate hang.

I discovered this running openvasd and my previous email on this is
titled:  NULL pointer dereference at 2.6.32-rc8:net/ipv4/ip_fragment.c:566

Signed-off-by: David Ford <david@blue-labs.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29 23:02:22 -08:00
Roger Oksanen
98468efddb e100: Use pci pool to work around GFP_ATOMIC order 5 memory allocation failure
pci_alloc_consistent uses GFP_ATOMIC allocation that may fail on some systems
with limited memory (Bug #14265). pci_pool_alloc allows waiting with
GFP_KERNEL.

Tested-by: Karol Lewandowski <karol.k.lewandowski@gmail.com>
Signed-off-by: Roger Oksanen <roger.oksanen@cs.helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29 17:17:29 -08:00
Alan Stern
862f89b3d4 PM: fix irq enable/disable in runtime PM code
This patch (as1305) fixes a bug in the irq-enable settings and removes
some related overhead in the runtime PM code.

	In __pm_runtime_resume(), within the scope of the original
	spin_lock_irq(), we know that irqs are disabled.  There's no
	reason to go through a pair of enable/disable cycles when
	acquiring and releasing the parent's lock.

	In __pm_runtime_set_status(), irqs are already disabled when
	the parent's lock is acquired, and they must remain disabled
	when it is released.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-11-29 16:51:27 +01:00
Andrei Pelinescu-Onciul
5fdd4baef6 sctp: on T3_RTX retransmit all the in-flight chunks
When retransmitting due to T3 timeout, retransmit all the
in-flight chunks for the corresponding  transport/path, including
chunks sent less then 1 rto ago.
This is the correct behaviour according to rfc4960 section 6.3.3
E3 and
"Note: Any DATA chunks that were sent to the address for which the
 T3-rtx timer expired but did not fit in one MTU (rule E3 above)
 should be marked for retransmission and sent as soon as cwnd
 allows (normally, when a SACK arrives). ".

This fixes problems when more then one path is present and the T3
retransmission of the first chunk that timeouts stops the T3 timer
for the initial active path, leaving all the other in-flight
chunks waiting forever or until a new chunk is transmitted on the
same path and timeouts (and this will happen only if the cwnd
allows sending new chunks, but since cwnd was dropped to MTU by
the timeout => it will wait until the first heartbeat).

Example: 10 packets in flight, sent at 0.1 s intervals on the
primary path. The primary path is down and the first packet
timeouts. The first packet is retransmitted on another path, the
T3 timer for the primary path is stopped and cwnd is set to MTU.
All the other 9 in-flight packets will not be retransmitted
(unless more new packets are sent on the primary path which depend
on cwnd allowing it, and even in this case the 9 packets will be
retransmitted only after a new packet timeouts which even in the
best case would be more then RTO).

This commit reverts d0ce92910b and
also removes the now unused transport->last_rto, introduced in
 b6157d8e03.

p.s  The problem is not only when multiple paths are there.  It
can happen in a single homed environment.  If the application
stops sending data, it possible to have a hung association.

Signed-off-by: Andrei Pelinescu-Onciul <andrei@iptel.org>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29 00:14:02 -08:00
Dominik Brodowski
5fa9167a1b pcmcia: rework the irq_req_t typedef
Most of the irq_req_t typedef'd struct can be re-worked quite
easily:

(1) IRQInfo2 was unused in any case, so drop it.

(2) IRQInfo1 was used write-only, so drop it.

(3) Instance (private data to be passed to the IRQ handler):
	Most PCMCIA drivers using pcmcia_request_irq() to actually
	register an IRQ handler set the "dev_id" to the same pointer
	as the "priv" pointer in struct pcmcia_device. Modify the two
	exceptions (ipwireless, ibmtr_cs) to also work this waym and
	set the IRQ handler's "dev_id" to p_dev->priv unconditionally.

(4) Handler is to be of type irq_handler_t.

(5) Handler != NULL already tells whether an IRQ handler is present.
	Therefore, we do not need the IRQ_HANDLER_PRESENT flag in
	irq_req_t.Attributes.

CC: netdev@vger.kernel.org
CC: linux-bluetooth@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: Jaroslav Kysela <perex@perex.cz>
CC: Jiri Kosina <jkosina@suse.cz>
CC: Karsten Keil <isdn@linux-pingi.de>
for the Bluetooth parts: Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:03:14 +01:00
Dominik Brodowski
dd2e5a1565 pcmcia: remove deprecated handle_to_dev() macro
Update remaining users and remove deprecated handle_to_dev() macro

CC: Harald Welte <laforge@gnumonks.org>
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-serial@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:03:10 +01:00
Dominik Brodowski
6838b03fc6 pcmcia: pcmcia_request_window() doesn't need a pointer to a pointer
pcmcia_request_window() only needs a pointer to struct pcmcia_device, not
a pointer to a pointer.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
Acked-by: Karsten Keil <keil@b1-systems.de> (for ISDN)
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:02:58 +01:00
Dominik Brodowski
82f88e3600 pcmcia: remove unused "window_t" typedef
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:02:52 +01:00
Dominik Brodowski
d7b0364bfc pcmcia: move some window-related code to pcmcia_ioctl.c
pcmcia_get_window() and pcmcia_get_mem_page() were only called from
pcmcia_ioctl.c. Therefore, move these functions to that file, and
remove the useless EXPORTs.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:02:51 +01:00
Magnus Damm
0bdf9b3dd3 pcmcia: Change window_handle_t logic to unsigned long
Logic changes based on top of the other patches:

This set of patches changed window_handle_t from being a pointer to an
unsigned long. The unsigned long is now a simple index into socket->win[].
Going from a pointer to unsigned long should leave the user space interface
unchanged unless I'm mistaken.

This change results in code that is less error prone and a user space
interface which is much cleaner and safer. A nice side effect is that we
are also are able to remove all members except one from window_t.

[ linux@dominikbrodowski.net:
	Update to 2.6.31. Also, a plain "index" to socket->win[] does not
	work, as several codepaths rely on "window_handle_t" being
	non-zero if used. Therefore, set the window_handle_t to the
	socket->win[] index + 1. ]

CC: netdev@vger.kernel.org
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:02:50 +01:00
Magnus Damm
16456ebabf pcmcia: Pass struct pcmcia_socket to pcmcia_get_mem_page()
No logic changes, just pass struct pcmcia_socket to pcmcia_get_mem_page()

[linux@dominikbrodowski.net: update to 2.6.31]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:02:49 +01:00
Magnus Damm
868575d1e8 pcmcia: Pass struct pcmcia_device to pcmcia_map_mem_page()
No logic changes, just pass struct pcmcia_device to pcmcia_map_mem_page()

[linux@dominikbrodowski.net: update to 2.6.31]
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
Acked-by: Karsten Keil <keil@b1-systems.de> (for ISDN)
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:02:13 +01:00
Magnus Damm
f5560da549 pcmcia: Pass struct pcmcia_device to pcmcia_release_window()
No logic changes, just pass struct pcmcia_device to pcmcia_release_window().

[linux@dominikbrodowski.net: update to 2.6.31]
CC: netdev@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:01:26 +01:00
Ingo Molnar
cf72344d1a perf scripting: Fix build
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-28 10:11:00 +01:00
Tom Zanussi
1ae4a97125 perf trace: Add a scripts/perl/bin for perf trace shell scripts
To capture the relevant events for a given Perl script and to
avoid having to continually remember and type in long
command-lines, add a scripts/perl/bin directory containing two
simple shell scripts for each Perl script, one for recording and
one for processing/display. For example, to record perf data for
the rw-by-pid.pl script, run scripts/perl/bin/rw-by-pid-record
and to actually run the script and display the output run
scripts/perl/bin/rw-by-pid-report.

Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: anton@samba.org
Cc: hch@infradead.org
LKML-Reference: <1259133352-23685-8-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-28 10:04:27 +01:00
Tom Zanussi
89fbf0b8a0 perf trace: Add Documentation for perf trace Perl support
Adds perf-trace-perl Documentation and a link to it from the
perf-trace page.

Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: anton@samba.org
Cc: hch@infradead.org
LKML-Reference: <1259133352-23685-7-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-28 10:04:27 +01:00
Tom Zanussi
d1b93772be perf trace: Add interface to access perf data from Perl handlers
The Perl scripting support for perf trace allows most of a trace
event's data to be accessed directly as handler arguments, but
not all of it e.g. the less common fields aren't passed in.  To
give scripts access to the other fields and/or any other data or
metadata in the main perf executable that might be useful, a way
to access the C data in perf from Perl is needed; this patch
uses the Perl XS facility to do it for the common_xxx event
fields not passed to handler functions.

Context.pm exports three functions to Perl scripts that access
fields for the current event by calling back into perf:
common_pc(), common_flags() and common_lock_depth().  Support
for common_flags() field values was added to Core.pm and a
script used to sanity check these and other basic scripting
features, check-perf-trace.pl, was also added.

Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: anton@samba.org
Cc: hch@infradead.org
LKML-Reference: <1259133352-23685-6-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-28 10:04:27 +01:00