Commit Graph

65061 Commits

Author SHA1 Message Date
Ralf Baechle
48d480b0bd [MIPS] Malta: Fix off by one bug in interrupt handler.
Fairly cosmetic as it would only affect VSMP / SMTC kernels that don't
use vectored interrupts.

Found by Beth.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14 19:08:43 +01:00
Atsushi Nemoto
6440fcfc62 [MIPS] No ide_default_io_base() if PCI IDE was not found
Revert b543858209 and add
no_pci_devices() check to avoid crash due to early calling of
pci_get_class().

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14 19:08:43 +01:00
Yoichi Yuasa
b1043cc7d9 [MIPS] Add #include <linux/profile.h> to arch/mips/kernel/time.c
It refer to CPU_PROFILING.

arch/mips/kernel/time.c: In function 'local_timer_interrupt':
arch/mips/kernel/time.c:142: error: implicit declaration of function 'profile_tick'
arch/mips/kernel/time.c:142: error: 'CPU_PROFILING' undeclared (first use in this function)
arch/mips/kernel/time.c:142: error: (Each undeclared identifier is reported only once
arch/mips/kernel/time.c:142: error: for each function it appears in.)

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14 19:08:42 +01:00
Johannes Dickgreber
82411390a2 [MIPS] N32 needs to use compat_sys_futimesat
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14 19:08:42 +01:00
Ralf Baechle
4d24c8f955 [MIPS] rtlx: Fix build error.
CC      arch/mips/kernel/rtlx.o
cc1: warnings being treated as errors
arch/mips/kernel/rtlx.c:59: warning: 'irq' defined but not used
arch/mips/kernel/rtlx.c:60: warning: 'irq_num' defined but not used

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14 19:08:42 +01:00
Ralf Baechle
e606c109c4 [MIPS] rtlx: fix int vs. long bug.
CC      arch/mips/kernel/rtlx.o
arch/mips/kernel/rtlx.c: In function 'rtlx_init':
arch/mips/kernel/rtlx.c:114: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'long unsigned int'

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14 19:08:42 +01:00
Linus Torvalds
e90ff9239e V4L/DVB (6220a): fix build error for et61x251 driver
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-14 13:39:12 -03:00
Steven Toth
48200baeab V4L/DVB (6188): Avoid a NULL pointer dereference during mpeg_open()
Bug: With a hardware encoder board installed as cx88[1] and a
non-encoder boards installed as cx88[0], an OOPS is generated
during cx8802_get_device() called from mpeg_open().

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-14 13:13:42 -03:00
Robert P. J. Day
4730d3af62 V4L/DVB (6173a): Documentation: Remove reference to dead "cpia_pp=" boot-time option
Since this boot-time option was removed in commit
9ab7e323af, delete the reference to it.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-14 13:13:42 -03:00
Mauro Carvalho Chehab
f5ab272bbf V4L/DVB (6148): Fix a warning at saa7191_probe
saa7191.c: In function 'saa7191_probe':
saa7191.c:596: warning: passing argument 3 of
	'saa7191_write_block' discards qualifiers from pointer target type

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-14 13:13:42 -03:00
Jean Delvare
7b9fbc3e30 V4L/DVB (6147): Pwc: Fix a broken debug message
Commit 85237f202d introduced the
following warning (with CONFIG_USB_PWC_DEBUG=y):
drivers/media/video/pwc/pwc-if.c: In function "pwc_video_close":
drivers/media/video/pwc/pwc-if.c:1211: warning: "i" may be used uninitialized in this function

This is true, and can cause a broken debug message to be logged.
Here's a fix.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-14 13:13:41 -03:00
Stas Sergeev
f5e4feead7 V4L/DVB (6144): Fix mux setup for composite sound on AverTV 307
Right now the composite sound input doesn't work on AverTV 307 because of
the wrong mux setup.  The composite sound is routed via an external
4channel multiplexer controlled by GPIO, while the code assumes an internal
multiplexer instead.

Presumably this was a copy/paste error, and noone have ever tested the
functionality.

With the attached patch it works properly, which gives me an ability to
finally watch the cable TV under linux.

Signed-off-by: Stas Sergeev <stsp@aknet.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Nickolay V. Shmyrev <nshmyrev@yandex.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-14 13:13:41 -03:00
Hans Verkuil
5614b02143 V4L/DVB (6095): ivtv: fix VIDIOC_G_ENC_INDEX flag handling
Due to a documentation bug (the type mask is 3 bits long, not 2) the wrong
frame types were filled in: the B and P frame types were swapped.

This bug also hid a second bug: when a capture is stopped a last entry is
written into the pgm index buffer with internal type 0, denoting the end
of the program. This entry wasn't ignored, instead it was accidentally
returned to the caller as a P frame.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-14 13:13:40 -03:00
Linus Torvalds
19299b1a72 Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  Revert "usb-storage: implement autosuspend"
  USB: disable autosuspend by default for non-hubs
2007-09-13 08:43:38 -07:00
Jens Axboe
f3da54ba14 Fix race with shared tag queue maps
There's a race condition in blk_queue_end_tag() for shared tag maps,
users include stex (promise supertrak thingy) and qla2xxx.  The former
at least has reported bugs in this area, not sure why we haven't seen
any for the latter.  It could be because the window is narrow and that
other conditions in the qla2xxx code hide this.  It's a real bug,
though, as the stex smp users can attest.

We need to ensure two things - the tag bit clearing needs to happen
AFTER we cleared the tag pointer, as the tag bit clearing/setting is
what protects this map.  Secondly, we need to ensure that the visibility
of the tag pointer and tag bit clear are ordered properly.

[ I removed the SMP barriers - "test_and_clear_bit()" already implies
  all the required barriers.  -- Linus ]

Also see http://bugzilla.kernel.org/show_bug.cgi?id=7842

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-13 08:20:25 -07:00
Jean Delvare
9ca2152e17 Fix this Paul Simon song's name
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-13 08:11:10 -07:00
aherrman@arcor.de
106c4a9cef radeonfb: fix chip definition for Radeon Xpress 200M 0x5975
This fixes a problem introduced with commit
b5f2f4d1a6
The commit added a wrong chip definition to radeonfb which causes
a blank console on my Laptop if radeonfb is loaded.

The patch
 - renames PCI_CHIP_RS485_5975 to PCI_CHIP_RS482_5975
 - corrects the chip family (RS480 instead of R300) for 0x5975
 - ensures that PCI IDs are in ascending order in ati_ids.h

Signed-off-by: Andreas Herrmann <aherrman@arcor.de>
Tentatively-acked-by: Ben Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-13 08:00:42 -07:00
aherrman@arcor.de
f2740e45ae radeonfb: fix setting of PPLL_REF_DIV for RV370 5B60.
As observed with various Radeon X300 cards console goes blank
without that fix.

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andreas Herrmann <aherrman@arcor.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-13 08:00:42 -07:00
Tzachi Perelstein
b9338a78fc [ARM] 4567/1: Fix 'Oops - undefined instruction' when CONFIG_VFP=y on non VFP device
vfp_init() takes care of the condition when CONFIG_VFP=y but no real VFP
device exists. However, when this condition is true, a compiler might
misplace code lines in a way that will break this support. (To be more
specific - fmrx(FPSID) might be executed before vfp_testing_entry
assignment, which will end up with Oops - undefined instruction).
This patch adds a barrier() to guarantee the right execution ordering.

Signed-off-by: Assaf Hoffman
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-09-13 15:10:27 +01:00
Russell King
a53d6fb83e [ARM] realview: disable second GIC on RevB MPCore platforms
The second GIC asserts a permanent interrupt on Rev.B MPCore platforms.
Disable initialisation of this GIC to avoid unbootable systems.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-09-13 15:10:25 +01:00
Greg Kroah-Hartman
d526875deb Revert "usb-storage: implement autosuspend"
This reverts commit 8dfe4b1486.

There are a number of issues still remaining in usb-storage autosuspend,
so, to be safe, we need to revert this for now.

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-09-13 06:01:24 -07:00
Alan Stern
7d2c592609 USB: disable autosuspend by default for non-hubs
This patch (as965) disables autosuspend by default for all USB devices
other than hubs.  We are seeing too many devices that can't suspend or
resume properly, the blacklist is growing unreasonably quickly, and
this sort of thing should be handled in userspace.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-09-13 05:49:04 -07:00
Ishizaki Kou
a041fe2e8d spidernet: fix interrupt reason recognition
This patch solves a problem that the spidernet driver sometimes fails
to handle IRQ.

The problem happens because,
- In Cell architecture, interrupts may arrive at an interrupt
  controller, even if they are masked by the setting on registers of
  devices. It happens when interrupt packets are sent just before
  the interrupts are masked.
- spidernet interrupt handler compares interrupt reasons with
  interrupt masks, so when such interrupts occurs, spidernet interrupt
  handler returns IRQ_NONE.
- When all of interrupt handler return IRQ_NONE, linux kernel disables
  the IRQ and it no longer delivers interrupts to the interrupt handlers.

spidernet doesn't work after above sequence, because it can't receive
interrupts.

This patch changes spidernet interrupt handler that it compares
interrupt reason with SPIDER_NET_INTX_MASK_VALUE.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-13 00:16:31 -04:00
Jan-Bernd Themann
6425162179 ehea: fix last_rx update
Update last_rx in registered device struct instead of
in the dummy device.

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-13 00:13:51 -04:00
Jan-Bernd Themann
8759cf76e9 ehea: propagate physical port state
Introduces a module parameter to decide whether the physical
port link state is propagated to the network stack or not.
It makes sense not to take the physical port state into account
on machines with more logical partitions that communicate
with each other. This is always possible no matter what the physical
port state is. Thus eHEA can be considered as a switch there.

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-13 00:13:51 -04:00
Hans-Jürgen Koch
026d7917e5 Fix a lock problem in generic phy code
Lock debugging finds a problem in phy.c and phy_device.c,
this patch fixes it. Tested on an AT91SAM9263-EK board,
kernel 2.6.23-rc4.

Signed-off-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-13 00:12:43 -04:00
Stephen Hemminger
d1b139c039 sky2: restore multicast list on resume and other ops
Need to restore multicast settings on resume and after 'ethtool -r'.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-13 00:02:49 -04:00
Luca Tettamanti
5f08e46b62 atl1: disable broken 64-bit DMA
64-bit DMA causes data corruption with atl1.  We don't know why, and Atheros
is working on it.  For now, just use 32-bit DMA.  This is a big hack that is
probably wrong, but it stops the bleeding.

Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Acked-by: Chris Snook <csnook@redhat.com>
Acked-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-12 23:54:50 -04:00
Linus Torvalds
c87ce65868 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Move serial_dev_init to device_initcall()
  [POWERPC] Enable GENERIC_ISA_DMA if FSL_ULI1575 to fix compile issue
  [POWERPC] cpm2: Fix off-by-one error in setbrg().
  [PPC] 8xx: Fix r3 trashing due to 8MB TLB page instantiation
  [POWERPC] 8{5,6}xx: Fix build issue with !CONFIG_PCI
2007-09-12 12:23:51 -07:00
Rusty Russell
c413fecc76 lguest: Fix guest crash when CONFIG_X86_USE_3DNOW=y
One of the very first things lguest_init() does is a memcpy.  On
Athlon/Duron/K7 or CyrixIII/VIA-C3 or Geode GX/LX, this tries to use
MMX.

memcpy -> _mmx_memcpy -> kernel_fpu_begin -> clts -> paravirt_ops.clts

But we haven't set paravirt_ops.clts yet, so we do the native version
and crash.  The simplest solution is to use __memcpy.

Thanks to Michael Rasenberger for the bug report.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-12 12:19:46 -07:00
Olof Johansson
ee56c47440 [POWERPC] Move serial_dev_init to device_initcall()
With the I/O space rewrite by BenH, the legacy_serial serial_dev_init()
initcall is now called before I/O space is setup, but it's dependent on
it being available.

Since there's no way to make dependencies between initcalls, we'll just
have to move it to device_initcall(). Yes, it's suboptimal but I'm not
aware of any better solution at this time, and it fixes a regression
from 2.6.22.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-13 04:09:14 +10:00
Andi Kleen
9863b78a1a i386: Fix leak of ../kernel from top level
Fix a compile error when the directory above the kernel source contains
a file named "kernel".  Originally from Ben LaHaise, modified based on
feedback from Sam Ravnborg

Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Ben LaHaise <bcrl@kvack.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-12 09:28:06 -07:00
Andi Kleen
2966c6a03e x86_64: Prevent doing anything from cache_remove_dev() when info setup failed.
AK: Removed the unlikelies because gcc heuristics default to unlikely
AK: for test == NULL and for negative returns.

Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-12 09:28:06 -07:00
Andi Kleen
95b0867996 x86_64: Add missing mask operation to vdso
vdso vgetns() didn't mask the time source offset calculation, which
could lead to time problems with 32bit HPET.  Add the masking.

Thanks to Chuck Ebbert for tracking this down.

Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-12 09:28:06 -07:00
Linus Torvalds
99364df764 Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: Add missing include for leds.h
2007-09-12 09:17:40 -07:00
Paul Mackerras
b0052fcaef Define termios_1 functions for powerpc, s390, avr32 and frv
Commit f629307c85 introduced uses of
kernel_termios_to_user_termios_1 and user_termios_to_kernel_termios_1
on all architectures.  However, powerpc, s390, avr32 and frv don't
currently define those functions since their termios struct didn't
need to be changed when the arbitrary baud rate stuff was added, and
thus the kernel won't currently build on those architectures.

This adds definitions of kernel_termios_to_user_termios_1 and
user_termios_to_kernel_termios_1 to include/asm-generic/termios.h
which are identical to kernel_termios_to_user_termios and
user_termios_to_kernel_termios respectively.  The definitions are the
same because the "old" termios and "new" termios are in fact the same
on these architectures (which are the same ones that use
asm-generic/termios.h).

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alan Cox <alan@redhat.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-12 09:08:05 -07:00
Kumar Gala
fb4f0e8832 [POWERPC] Enable GENERIC_ISA_DMA if FSL_ULI1575 to fix compile issue
Since the ULI1575 has a ISA bus we need to enable the generic ISA dma
support for drivers that might expect it.  Without this we get compile
errors like the following:

ound/built-in.o: In function `claim_dma_lock':
/home/galak/git/linux-8572/include/asm/dma.h:189: undefined reference to `dma_spin_lock'
/home/galak/git/linux-8572/include/asm/dma.h:189: undefined reference to `dma_spin_lock'
sound/built-in.o: In function `release_dma_lock':
/home/galak/git/linux-8572/include/asm/dma.h:195: undefined reference to `dma_spin_lock'
sound/built-in.o: In function `claim_dma_lock':
/home/galak/git/linux-8572/include/asm/dma.h:189: undefined reference to `dma_spin_lock'
/home/galak/git/linux-8572/include/asm/dma.h:189: undefined reference to `dma_spin_lock'
sound/built-in.o:/home/galak/git/linux-8572/include/asm/dma.h:195: more undefined references to `dma_spin_lock' follow
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-12 10:41:10 -05:00
Linus Torvalds
0bc73c253e Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [BLUETOOTH]: Fix non-COMPAT build of hci_sock.c
2007-09-12 08:17:30 -07:00
Linus Torvalds
040a2b6b59 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Fix booting on V100 systems.
2007-09-12 07:59:49 -07:00
Linus Torvalds
532df780a2 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: usbtouchscreen - correctly set 'phys'
  Input: i8042 - add HP Pavilion DV4270ca to the MUX blacklist
  Input: i8042 - fix modpost warning
  Input: add more Braille keycodes
2007-09-12 07:57:00 -07:00
David S. Miller
1da97f83a8 [BLUETOOTH]: Fix non-COMPAT build of hci_sock.c
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-12 14:10:58 +02:00
Mike Frysinger
0931ce8439 Blackfin arch: fix some bugs in lib/string.h functions found by our string testing modules
- use ints for the return value rather than char since we actually return
   an int and we dont want it improperly being sign extended during the reload
   http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3525

 - if src is shorter than the requested number of copy bytes, we need to null
   pad the rest
   http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3524

 - mark these as __volatile__ and add memory to the clobber list so gcc does
   not optimize buffers around on us we may be using

 - rewrite asm code to be readable/maintainable

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-09-12 16:30:15 +08:00
David S. Miller
2cc7345ff7 [SPARC64]: Fix booting on V100 systems.
On the root PCI bus, the OBP device tree lists device 3 twice.
Once as 'pm' and once as 'lomp'.

Everything goes downhill from there.

Ignore the second instance to workaround this.

Thanks to Kövedi_Krisztián for the bug report and
testing the fix.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-12 10:15:59 +02:00
Linus Torvalds
577107e8e4 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
  ocfs2: Fix calculation of i_blocks during truncate
  [PATCH] ocfs2: Fix a wrong cluster calculation.
  [PATCH] ocfs2: fix mount option parsing
  ocfs2: update docs for new features
2007-09-11 17:23:16 -07:00
Adrian Bunk
7111de7643 fix SERIAL_CORE_CONSOLE driver dependencies
SERIAL_BFIN=m or SERIAL_MUX=m shouldn't allow SERIAL_CORE_CONSOLE=y.

Additionally, this patch fixes whitespace instead of tabs at the
SERIAL_MUX_CONSOLE option.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Bryan Wu <bryan.wu@analog.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>
2007-09-11 17:21:27 -07:00
Krzysztof Halasa
9c54ea9585 Subject: [PATCH] Intel FB pixel clock calculation fix
Intel framebuffer mis-calculated pixel clocks.

The pixel clock (and thus both H and V sync) will be slower than requested, so
if you set the minimum allowed the display may not sync.  In case of really
old CRT display it could theoretically damage it.

I'm using it with PAL TV (using RGB input - SCART connector) and the bug
prevented it from working at all (TV requirements are more strict and made the
bug visible).

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11 17:21:27 -07:00
Christoph Lameter
ba0268a8b0 SLUB: accurately compare debug flags during slab cache merge
This was posted on Aug 28 and fixes an issue that could cause troubles
when slab caches >=128k are created.

http://marc.info/?l=linux-mm&m=118798149918424&w=2

Currently we simply add the debug flags unconditional when checking for a
matching slab.  This creates issues for sysfs processing when slabs exist
that are exempt from debugging due to their huge size or because only a
subset of slabs was selected for debugging.

We need to only add the flags if kmem_cache_open() would also add them.

Create a function to calculate the flags that would be set
if the cache would be opened and use that function to determine
the flags before looking for a compatible slab.

[akpm@linux-foundation.org: fixlets]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11 17:21:27 -07:00
Andrew Morton
4150d3f549 revert "highmem: catch illegal nesting"
Revert

	commit 656dad312f
	Author: Ingo Molnar <mingo@elte.hu>
	Date:   Sat Feb 10 01:46:36 2007 -0800

	[PATCH] highmem: catch illegal nesting

	Catch illegally nested kmap_atomic()s even if the page that is mapped by
	the 'inner' instance is from lowmem.

	This avoids spuriously zapped kmap-atomic ptes and turns hard to find
	crashes into clear asserts at the bug site.

Problem is, a get_zeroed_page(GFP_KERNEL) from interrupt context will trigger
this check if non-irq code on this CPU holds a KM_USER0 mapping.  But that
get_zeroed_page() will never be altering the kmap slot anyway due to the
GFP_KERNEL.

Cc: Christoph Lameter <clameter@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11 17:21:27 -07:00
Tony Breeds
298a5df45d Fix "no_sync_cmos_clock" logic inversion in kernel/time/ntp.c
Seems to me that this timer will only get started on platforms that say
they don't want it?

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Gabriel Paubert <paubert@iram.es>
Cc: Zachary Amsden <zach@vmware.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11 17:21:27 -07:00
Pavel Emelyanov
0e2f6db88a Leases can be hidden by flocks
The inode->i_flock list contains the leases, flocks and posix
locks in the specified order. However, the flocks are added in
the head of this list thus hiding the leases from F_GETLEASE
command, from time_out_leases() and other code that expects
the leases to come first.

The following example will demonstrate this:

#define _GNU_SOURCE

#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/file.h>

static void show_lease(int fd)
{
        int res;

        res = fcntl(fd, F_GETLEASE);
        switch (res) {
                case F_RDLCK:
                        printf("Read lease\n");
                        break;
                case F_WRLCK:
                        printf("Write lease\n");
                        break;
                case F_UNLCK:
                        printf("No leases\n");
                        break;
                default:
                        printf("Some shit\n");
                        break;
        }
}

int main(int argc, char **argv)
{
        int fd, res;

        fd = open(argv[1], O_RDONLY);
        if (fd == -1) {
                perror("Can't open file");
                return 1;
        }

        res = fcntl(fd, F_SETLEASE, F_WRLCK);
        if (res == -1) {
                perror("Can't set lease");
                return 1;
        }

        show_lease(fd);

        if (flock(fd, LOCK_SH) == -1) {
                perror("Can't flock shared");
                return 1;
        }

        show_lease(fd);

        return 0;
}

The first call to show_lease() will show the write lease set, but
the second will show no leases.

Fix the flock adding so that the leases always stay in the head
of this list.

Found during making the flocks pid-namespaces aware.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11 17:21:27 -07:00