Andreas Herrmann [Tue, 10 Jun 2008 14:05:39 +0000 (16:05 +0200)]
x86: PAT: fixed checkpatch errors (and whitespaces)
x86: PAT: fixed checkpatch errors (and whitespaces)
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Andreas Herrmann [Tue, 10 Jun 2008 14:05:18 +0000 (16:05 +0200)]
x86: PAT: fix ambiguous paranoia check in pat_init()
Starting with commit
8d4a4300854f3971502e81dacd930704cb88f606 (x86:
cleanup PAT cpu validation) the PAT CPU feature flag is not cleared
anymore. Now the error message
"PAT enabled, but CPU feature cleared"
in pat_init() is misleading.
Furthermore the current code does not check for existence of the PAT
CPU feature flag if a CPU is whitelisted in validate_pat_support.
This patch clears pat_wc_enabled if boot CPU has no PAT feature flag
and adapts the paranoia check.
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Andreas Herrmann [Tue, 10 Jun 2008 14:04:30 +0000 (16:04 +0200)]
x86: unconditionally enable PAT for AMD CPUs
If PAT support is advertised it should just work. No errata known.
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Venki Pallipadi [Thu, 29 May 2008 19:01:44 +0000 (12:01 -0700)]
x86: fix Xorg crash with xf86MapVidMem error
Clarify the usage of mtrr_lookup() in PAT code, and to make PAT code
resilient to mtrr lookup problems.
Specifically, pat_x_mtrr_type() is restructured to highlight, under what
conditions we look for mtrr hint. pat_x_mtrr_type() uses a default type
when there are any errors in mtrr lookup (still maintaining the pat
consistency). And, reserve_memtype() highlights its usage ot mtrr_lookup
for request type of '-1' and also defaults in a sane way on any mtrr
lookup failure.
pat.c looks at mtrr type of a range to get a hint on what mapping type
to request when user/API: (1) hasn't specified any type (/dev/mem
mapping) and we do not want to take performance hit by always mapping
UC_MINUS. This will be the case for /dev/mem mappings used to map BIOS
area or ACPI region which are WB'able. In this case, as long as MTRR is
not WB, PAT will request UC_MINUS for such mappings.
(2) user/API requests WB mapping while in reality MTRR may have UC or
WC. In this case, PAT can map as WB (without checking MTRR) and still
effective type will be UC or WC. But, a subsequent request to map same
region as UC or WC may fail, as the region will get trackked as WB in
PAT list. Looking at MTRR hint helps us to track based on effective type
rather than what user requested. Again, here mtrr_lookup is only used as
hint and we fallback to WB mapping (as requested by user) as default.
In both cases, after using the mtrr hint, we still go through the
memtype list to make sure there are no inconsistencies among multiple
users.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Tested-by: Rufus & Azrael <rufus-azrael@numericable.fr>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Andrew Morton [Wed, 14 May 2008 23:10:39 +0000 (16:10 -0700)]
arch/x86/mm/pat.c: use boot_cpu_has()
arch/x86/mm/pat.c: In function 'phys_mem_access_prot_allowed':
arch/x86/mm/pat.c:526: warning: passing argument 2 of 'constant_test_bit' from incompatible pointer type
arch/x86/mm/pat.c:526: warning: passing argument 2 of 'variable_test_bit' from incompatible pointer type
arch/x86/mm/pat.c:527: warning: passing argument 2 of 'constant_test_bit' from incompatible pointer type
arch/x86/mm/pat.c:527: warning: passing argument 2 of 'variable_test_bit' from incompatible pointer type
arch/x86/mm/pat.c:528: warning: passing argument 2 of 'constant_test_bit' from incompatible pointer type
arch/x86/mm/pat.c:528: warning: passing argument 2 of 'variable_test_bit' from incompatible pointer type
arch/x86/mm/pat.c:529: warning: passing argument 2 of 'constant_test_bit' from incompatible pointer type
arch/x86/mm/pat.c:529: warning: passing argument 2 of 'variable_test_bit' from incompatible pointer type
Don't open-code test_bit() on a __u32
Cc: Andrea Arcangeli <andrea@qumranet.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Dave Jones [Thu, 22 May 2008 17:02:23 +0000 (13:02 -0400)]
x86: Add Centaur and Transmeta CPUs to PAT whitelist
Unconditionally enable PAT support on Centaur and Transmeta CPUs.
All known models that advertise PAT have no known errata.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Ingo Molnar [Mon, 19 May 2008 07:23:07 +0000 (09:23 +0200)]
Merge branch 'linus' into x86/pat
Linus Torvalds [Sun, 18 May 2008 21:36:41 +0000 (14:36 -0700)]
Linux 2.6.26-rc3
Linus Torvalds [Sun, 18 May 2008 20:56:54 +0000 (13:56 -0700)]
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/max6875: Really prevent 24RF08 corruption
i2c-amd756: Fix functionality flags
i2c: Kill the old driver matching scheme
i2c: Convert remaining new-style drivers to use module aliasing
i2c: Switch pasemi to the new device/driver matching scheme
i2c: Clean up Blackfin BF527 I2C device declarations
i2c-nforce2: Disable the second SMBus channel on the DFI Lanparty NF4 Expert
i2c: New co-maintainer
Geert Uytterhoeven [Sun, 18 May 2008 18:47:24 +0000 (20:47 +0200)]
m68k: Add multi_defconfig
Add multi_defconfig, to build a kernel for all supported m68k platforms,
excluding Sun 3 (Sun 3 kernels are incompatible with all other m68k platforms)
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:23 +0000 (20:47 +0200)]
m68k: Update defconfigs
Update the m68k defconfigs
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:22 +0000 (20:47 +0200)]
m68k: Correctly handle multi-ISA at runtime
m68k: Correctly handle multi-ISA at runtime in multi-platform kernels
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:21 +0000 (20:47 +0200)]
m68k: Prefix ISA type with ISA_TYPE_
The *_ISA type defines are quite generic and cause namespace conflicts
(e.g. with `AMIGAHW_DECLARE(GG2_ISA)' in <asm/amigahw.h>) for some kernel
configurations. Use ISA_TYPE_* to avoid such conflicts.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:20 +0000 (20:47 +0200)]
m68k: export m68k_mmutype
UIO needs m68k_mmutype:
ERROR: "m68k_mmutype" [drivers/uio/uio.ko] undefined!
(noticed by Christian T. Steigies)
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:19 +0000 (20:47 +0200)]
m68k: Q40/Q60 floppy support is broken
Mark Q40/Q60 floppy support broken:
arch/m68k/q40/q40ints.c: In function 'q40_irq_handler':
arch/m68k/q40/q40ints.c:214: error: implicit declaration of function 'floppy_hardint'
Including <asm/floppy.h> doesn't help, as it causes a lot of additional error
messages (cfr. Sun 3x).
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:18 +0000 (20:47 +0200)]
m68k: Return -ENODEV if no device is found
According to the tests in do_initcalls(), the proper error code in case no
device is found is -ENODEV, not -ENXIO or -EIO.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:17 +0000 (20:47 +0200)]
m68k: Some input drivers do not check the platform
Some input drivers do not check whether they're actually running on the
correct platform, causing multi-platform kernels to crash if they are not.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:16 +0000 (20:47 +0200)]
m68k: Some network drivers do not check the platform
Some network drivers do not check whether they're actually running on the
correct platform, causing multi-platform kernels to crash if they are not.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:15 +0000 (20:47 +0200)]
m68k: dnfb doesnt check for Apollo
The Apollo frame buffer device driver (dnfb) doesn't check whether it's
actually running on Apollo hardware, causing a crash if it isn't.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:14 +0000 (20:47 +0200)]
m68k: macide doesnt check for Mac
The Macintosh IDE driver (macide) doesn't check whether it's actually running
on Mac hardware, causing a crash if it isn't.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:13 +0000 (20:47 +0200)]
m68k: Correct jump if not running on HP300
When running a HP300-enabled kernel on non-HP300 hardware, a test in the early
startup code jumps to the wrong label, causing a double bus fault.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:12 +0000 (20:47 +0200)]
m68k: Make gcc aware that BUG() does not return
Use `__builtin_trap()' instead of `asm volatile("illegal")' in the m68k BUG()
macros (as suggested by Andrew Pinski), to kill warnings in code that assumes
BUG() does not return.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:11 +0000 (20:47 +0200)]
m68k vme_scc: avoid global namespace pollution
m68k vme_scc:
- make scc_ports[] static
- kill unused global scc_initialized
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:10 +0000 (20:47 +0200)]
m68k: Kill CONFIG_WHIPPET_SERIAL
The Hisoft Whippet PCMCIA serial driver has been removed a long time ago, but
it's Kconfig symbol still existed.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:09 +0000 (20:47 +0200)]
m68k: FB_HP300 depends on DIO and doesnt need FB_CFB_FILLRECT
Correct FB_HP300 dependencies:
- FB_HP300 doesn't depend only on HP300, but also on DIO (which depends on
HP300)
- FB_HP300 does not need FB_CFB_FILLRECT
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:08 +0000 (20:47 +0200)]
m68k: Kill CONFIG_FB_DAFB
CONFIG_FB_DAFB is a leftover from pre-Kconfig
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 18 May 2008 18:47:07 +0000 (20:47 +0200)]
m68k: Convert access_ok() to an inline function
Convert access_ok() from a macro to an inline function, so the compiler no
longer complains about unused variables:
fs/read_write.c: In function 'rw_copy_check_uvector':
fs/read_write.c:556: warning: unused variable 'buf'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jean Delvare [Sun, 18 May 2008 18:49:41 +0000 (20:49 +0200)]
i2c/max6875: Really prevent 24RF08 corruption
i2c-core takes care of the possible corruption of 24RF08 chips for
quite some times, so device devices no longer need to do it. And they
really should not, as applying the prevention twice voids it.
I thought that I had fixed all drivers long ago but apparently I had
missed that one.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Ben Gardner <bgardner@wabtec.com>
Jean Delvare [Sun, 18 May 2008 18:49:41 +0000 (20:49 +0200)]
i2c-amd756: Fix functionality flags
The i2c-amd756 driver pretends to support SMBus process call
transactions but actually does not. Fix it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Jean Delvare [Sun, 18 May 2008 18:49:41 +0000 (20:49 +0200)]
i2c: Kill the old driver matching scheme
Remove the old driver_name/type scheme for i2c driver matching. Only the
standard aliasing model will be used from now on.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Jean Delvare [Sun, 18 May 2008 18:49:40 +0000 (20:49 +0200)]
i2c: Convert remaining new-style drivers to use module aliasing
Update all the remaining new-style i2c drivers to use standard module
aliasing instead of the old driver_name/type driver matching scheme.
Note that the tuner driver is a bit quirky at the moment, as it
overwrites i2c_client.name with arbitrary strings. We write "tuner"
back on remove, to make sure that driver cycling will work properly,
but there may still be troublesome corner cases.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Jean Delvare [Sun, 18 May 2008 18:49:40 +0000 (20:49 +0200)]
i2c: Switch pasemi to the new device/driver matching scheme
The old device/driver matching scheme is going away so stop using it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Olof Johansson <olof@lixom.net>
Jean Delvare [Sun, 18 May 2008 18:49:40 +0000 (20:49 +0200)]
i2c: Clean up Blackfin BF527 I2C device declarations
I2C_BOARD_INFO() now sets the type field so no need to set it
separatetly.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Bryan Wu <cooloney@kernel.org>
Jean Delvare [Sun, 18 May 2008 18:49:40 +0000 (20:49 +0200)]
i2c-nforce2: Disable the second SMBus channel on the DFI Lanparty NF4 Expert
There is a strange chip at 0x2e on the second SMBus channel of the
DFI Lanparty NF4 Expert motherboard. Accessing the chip reboots the
system. As there's nothing interesting on this SMBus channel, the
easiest and safest thing to do is to disable it on that board.
This is a better fix to bug #5889 than the it87 driver update that was
done originally:
http://bugzilla.kernel.org/show_bug.cgi?id=5889
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Jean Delvare [Sun, 18 May 2008 18:49:40 +0000 (20:49 +0200)]
i2c: New co-maintainer
Ben Dooks agreed to become my co-maintainer for the i2c subsystem. In
particular, Ben will help with drivers for embedded systems, of which
my experience is inexistent. Thanks Ben and welcome on board!
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Thomas Gleixner [Sun, 18 May 2008 09:54:43 +0000 (11:54 +0200)]
Merge branch 'linus' into x86/pat
Linus Torvalds [Sat, 17 May 2008 22:17:10 +0000 (15:17 -0700)]
Merge branch 'for-linus' of /home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] pxa: spitz wants PXA27x UDC definitions
[ARM] pxa: fix pxafb build when cpufreq is enabled
[ARM] fix parenthesis in include/asm-arm/arch-omap/control.h
[ARM] colibri: fix support for DM9000 ethernet device
[ARM] arm/kernel/arthur.c: add MODULE_LICENSE
[ARM] 5037/1: Orion: fix DNS323/Kurobox Pro PCI initialisation
[ARM] 5034/1: fix arm{925,926,940,946} dma_flush_range() in WT mode
[ARM] export copy_page
[ARM] 5026/1: locomo: add .settype for gpio and several small fixes
ARM: OMAP: Fixed comments on global PRM register usage
ARM: OMAP: Add PARENT_CONTROLS_CLOCK flag to dpll5_m2_ck
ARM: OMAP: PRCM fixes to ssi clock handling
ARM: OMAP: Add fuctional clock enabler for iva2
ARM: OMAP: Fix 34xx to use correct shift values for gpio2-6 fclks
ARM: OMAP: Keymap fix for palmte and palmz71
ARM: OMAP: Fix Unbalanced enable for IRQ in omap mailbox
ARM: OMAP: DMA: Fix incorrect channel linking
ARM: OMAP: Warn on disabling clocks with no users
ARM: OMAP: Add calls to omap2_set_globals_*()
ARM: OMAP: Update MMC header to fix compile
Russell King [Sat, 17 May 2008 21:56:08 +0000 (22:56 +0100)]
Merge branch 'omap-fixes' of git://git./linux/kernel/git/tmlind/linux-omap-2.6
Russell King [Sat, 17 May 2008 21:55:51 +0000 (22:55 +0100)]
Merge branch 'sa1100'
Russell King [Sat, 17 May 2008 21:51:35 +0000 (22:51 +0100)]
[ARM] pxa: spitz wants PXA27x UDC definitions
... so include the header file.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sat, 17 May 2008 21:51:14 +0000 (22:51 +0100)]
[ARM] pxa: fix pxafb build when cpufreq is enabled
If cpufreq is enabled, pxafb wants to call the removed
get_clk_frequency_khz() function for a debug printk. Remove
this reference.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Mariusz Kozlowski [Thu, 15 May 2008 18:52:24 +0000 (11:52 -0700)]
[ARM] fix parenthesis in include/asm-arm/arch-omap/control.h
Parenthesis fix in include/asm-arm/arch-omap/control.h
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Michael Abbott [Wed, 14 May 2008 23:29:24 +0000 (16:29 -0700)]
[ARM] colibri: fix support for DM9000 ethernet device
Two changes are necessary to enable proper operation of the DM9000 device with
the Colibri PXA 270 board: firstly, the IRQ type needs to be configured for
rising edge interrupts, and secondly this configuration needs to be
communicated through to the DM9000.
[akpm@linux-foundation.org: remove set_irq_type() call as per ben-linux request]
Signed-off-by: Michael Abbott <michael.abbott@diamond.ac.uk>
Cc: Daniel Mack <daniel@caiaq.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Adrian Bunk [Mon, 31 Mar 2008 09:08:16 +0000 (12:08 +0300)]
[ARM] arm/kernel/arthur.c: add MODULE_LICENSE
This patch adds the missing MODULE_LICENSE("GPL").
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Lennert Buytenhek [Thu, 15 May 2008 09:31:14 +0000 (10:31 +0100)]
[ARM] 5037/1: Orion: fix DNS323/Kurobox Pro PCI initialisation
Whereas most Orion 5x machine support code would initialise the PCI
subsystem with nr_controllers in their struct hw_pci set to 2, the
DNS323 and Kurobox Pro machine support code had nr_controllers set
to 1.
This was presumably done because on those two machines, the PCI(-X)
controller (nr == 1) isn't used, requiring initialisation of only
the PCIe controller (nr == 0.) However, not initialising the PCI(-X)
controller on boards that don't use it leads to a situation where
both the PCIe and the PCI(-X) controller think that their root bus is
zero, and it messes up IRQ assignment.
This patch changes the DNS323 and Kurobox Pro support code to always
use nr_controllers == 2.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Lennert Buytenhek [Sat, 10 May 2008 20:05:31 +0000 (21:05 +0100)]
[ARM] 5034/1: fix arm{925,926,940,946} dma_flush_range() in WT mode
The CPU's dma_flush_range() operation needs to clean+invalidate the
given memory area if the cache is in writeback mode, or do just the
invalidate part if the cache is in writethrough mode, but the current
proc-arm{925,926,940,946} (incorrectly) do a cache clean in the
latter case. This patch fixes that.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 11 May 2008 21:36:03 +0000 (22:36 +0100)]
[ARM] export copy_page
Martin Michlmayr reported that fuse complains:
ERROR: "copy_page" [fs/fuse/fuse.ko] undefined!
so export the needed function.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Thomas Kunze [Tue, 29 Apr 2008 16:44:54 +0000 (17:44 +0100)]
[ARM] 5026/1: locomo: add .settype for gpio and several small fixes
irqs.h:
* rename IRQ_LOCOMO_SPI_OVRN to IRQ_LOCOMO_SPI_REND
locomo.h:
* add some definition for locomo spi controller
* correct some errors
locomo.c:
* correct some errors
* add set_type for locomo gpio irq chip
Signed-off-by: Thomas Kunze <thommycheck@gmx.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Sat, 17 May 2008 21:21:43 +0000 (14:21 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: disable mwait for AMD family 10H/11H CPUs
x86: fix crash on cpu hotplug on pat-incapable machines
x86: remove mwait capability C-state check
Thomas Gleixner [Fri, 16 May 2008 20:55:26 +0000 (22:55 +0200)]
x86: disable mwait for AMD family 10H/11H CPUs
The previous revert of
0c07ee38c9d4eb081758f5ad14bbffa7197e1aec left
out the mwait disable condition for AMD family 10H/11H CPUs.
Andreas Herrman said:
It depends on the CPU. For AMD CPUs that support MWAIT this is wrong.
Family 0x10 and 0x11 CPUs will enter C1 on HLT. Powersavings then
depend on a clock divisor and current Pstate of the core.
If all cores of a processor are in halt state (C1) the processor can
enter the C1E (C1 enhanced) state. If mwait is used this will never
happen.
Thus HLT saves more power than MWAIT here.
It might be best to switch off the mwait flag for these AMD CPU
families like it was introduced with commit
f039b754714a422959027cb18bb33760eb8153f0 (x86: Don't use MWAIT on AMD
Family 10)
Re-add the AMD families 10H/11H check and disable the mwait usage for
those.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Avi Kivity [Wed, 14 May 2008 09:20:32 +0000 (12:20 +0300)]
x86: fix crash on cpu hotplug on pat-incapable machines
pat_disable() is __init, which means it goes away after booting is complete.
Unfortunately it is used by the hotplug code if the machine is not
pat-capable, causing a crash.
Fix by marking pat_disable() as __cpuinit.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Wed, 14 May 2008 06:47:40 +0000 (08:47 +0200)]
x86: remove mwait capability C-state check
Vegard Nossum reports:
| powertop shows between 200-400 wakeups/second with the description
| "<kernel IPI>: Rescheduling interrupts" when all processors have load (e.g.
| I need to run two busy-loops on my 2-CPU system for this to show up).
|
| The bisect resulted in this commit:
|
| commit
0c07ee38c9d4eb081758f5ad14bbffa7197e1aec
| Date: Wed Jan 30 13:33:16 2008 +0100
|
| x86: use the correct cpuid method to detect MWAIT support for C states
remove the functional effects of this patch and make mwait unconditional.
A future patch will turn off mwait on specific CPUs where that causes
power to be wasted.
Bisected-by: Vegard Nossum <vegard.nossum@gmail.com>
Tested-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Linus Torvalds [Fri, 16 May 2008 22:39:28 +0000 (15:39 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Update defconfig.
sparc64: Fix lmb_reserve() args in find_ramdisk().
David S. Miller [Fri, 16 May 2008 20:36:27 +0000 (13:36 -0700)]
sparc64: Update defconfig.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 15 May 2008 06:10:33 +0000 (23:10 -0700)]
sparc64: Fix lmb_reserve() args in find_ramdisk().
This fixes the missing ram regression reported by
Mikael Pettersson <mikpe@it.uu.se>, much thanks for
all of this help in diagnosing this.
The second argument to lmb_reserve() is a size,
not an end address bounds.
Tested-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Harvey Harrison [Fri, 16 May 2008 18:20:25 +0000 (11:20 -0700)]
byteorder: don't directly include linux/byteorder/generic.h
Use asm/byteorder.h instead.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 16 May 2008 01:28:46 +0000 (18:28 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
[POWERPC] macintosh: Replace deprecated __initcall with device_initcall
[POWERPC] cell: Fix section mismatches in io-workarounds code
[POWERPC] spufs: Fix compile error
[POWERPC] Fix uninitialized variable bug in copy_{to|from}_user
[POWERPC] Add null pointer check to of_find_property
[POWERPC] vmemmap fixes to use smaller pages
[POWERPC] spufs: Fix pointer reference in find_victim
[POWERPC] 85xx: SBC8548 - Add flash support and HW Rev reporting
[POWERPC] 85xx: Fix some sparse warnings for 85xx MDS
[POWERPC] 83xx: Enable DMA engine on the MPC8377 MDS board.
[POWERPC] 86xx: mpc8610_hpcd: fix second serial port
[POWERPC] 86xx: mpc8610_hpcd: add support for NOR and NAND flashes
[POWERPC] 85xx: Add 8568 PHY workarounds to board code
[POWERPC] 86xx: mpc8610_hpcd: use ULI526X driver for on-board ethernet
Linus Torvalds [Fri, 16 May 2008 01:28:28 +0000 (18:28 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
jbd2: update transaction t_state to T_COMMIT fix
ext4: Retry block allocation if new blocks are allocated from system zone.
ext4: mballoc fix mb_normalize_request algorithm for 1KB block size filesystems
ext4: fix typos in messages and comments (journalled -> journaled)
ext4: fix synchronization of quota files in journal=data mode
ext4: Fix mount messages when quota disabled
ext4: correct mount option parsing to detect when quota options can be changed
Cyrill Gorcunov [Thu, 15 May 2008 20:52:41 +0000 (13:52 -0700)]
initcalls: Fix m68k build and possible buffer overflow
This patch fixes a build bug on m68k - gcc decides to emit a call to the
strlen library function, which we don't implement.
More importantly - my previous patch "init: don't lose initcall return
values" (commit
e662e1cfd434aa234b72fbc781f1d70211cb785b) had introduced
potential buffer overflow by wrong calculation of string accumulator
size.
Use strlcat() instead, fixing both bugs.
Many thanks Andreas Schwab and Geert Uytterhoeven for helping
to catch and fix the bug.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 16 May 2008 01:14:01 +0000 (18:14 -0700)]
Split up 'do_initcalls()' into two simpler functions
One function to just loop over the entries, one function to actually do
the call and the associated debugging code.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 16 May 2008 00:50:37 +0000 (17:50 -0700)]
Clean up 'print_fn_descriptor_symbol()' types
Everybody wants to pass it a function pointer, and in fact, that is what
you _must_ pass it for it to make sense (since it knows that ia64 and
ppc64 use descriptors for function pointers and fetches the actual
address from there).
So don't make the argument be a 'unsigned long' and force everybody to
add a cast.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 15 May 2008 20:56:42 +0000 (13:56 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] fix personality(PER_LINUX32) performance issue
[IA64] Properly unregister legacy interrupts
[IA64] Remove NULL pointer check for argument never passed as NULL.
[IA64] trivial cleanup for perfmon.c
[IA64] trivial cleanup for entry.S
[IA64] fix interrupt masking for pending works on kernel leave
[IA64] allow user to force_pal_cache_flush
[IA64] Don't reserve crashkernel memory > 4 GB
[IA64] machvec support for SGI UV platform
[IA64] Add header files for SGI UV platform
Mingming Cao [Thu, 15 May 2008 18:46:17 +0000 (14:46 -0400)]
jbd2: update transaction t_state to T_COMMIT fix
Updating the current transaction's t_state is protected by j_state_lock. We
need to do the same when updating the t_state to T_COMMIT.
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Aneesh Kumar K.V [Thu, 15 May 2008 18:43:20 +0000 (14:43 -0400)]
ext4: Retry block allocation if new blocks are allocated from system zone.
If the block allocator gets blocks out of system zone ext4 calls
ext4_error. But if the file system is mounted with errors=continue
retry block allocation. We need to mark the system zone blocks as
in use to make sure retry don't pick them again
System zone is the block range mapping block bitmap, inode bitmap and inode
table.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Ingo Molnar [Wed, 14 May 2008 15:11:46 +0000 (17:11 +0200)]
tty: fix BKL related leak and crash
Enabling the BKL to be lockdep tracked uncovered the following
upstream kernel bug in the tty code, which caused a BKL
reference leak:
================================================
[ BUG: lock held when returning to user space! ]
------------------------------------------------
dmesg/3121 is leaving the kernel with locks still held!
1 lock held by dmesg/3121:
#0: (kernel_mutex){--..}, at: [<
c02f34d9>] opost+0x24/0x194
this might explain some of the atomicity warnings and crashes
that -tip tree testing has been experiencing since the BKL
was converted back to a spinlock.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Huang, Xiaolan [Thu, 15 May 2008 02:18:41 +0000 (10:18 +0800)]
[IA64] fix personality(PER_LINUX32) performance issue
The patch aims to fix a performance issue for the syscall
personality(PER_LINUX32).
On IA-64 box, the syscall personality (PER_LINUX32) has poor performance
because it failed to find the Linux/x86 execution domain. Then it tried
to load the kernel module however it failed always and it used the default
execution domain PER_LINUX instead. Requesting kernel modules is very
expensive. It caused the performance issue. (see the function
lookup_exec_domain in kernel/exec_domain.c).
To resolve the issue, execution domain Linux/x86 is always registered in
initialization time for IA-64 architecture.
Signed-off-by: Xiaolan Huang <xiaolan.huang@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Linus Torvalds [Thu, 15 May 2008 16:10:13 +0000 (09:10 -0700)]
Merge branch 'for-linus' of git://git390.osdl.marist.edu/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] show_interrupts: prevent cpu hotplug when walking cpu_online_map.
[S390] smp: __smp_call_function_map vs cpu_online_map fix.
[S390] tape: Use ccw_dev_id to build cdev_id.
[S390] dasd: fix timeout handling in interrupt handler
[S390] s390dbf: Use const char * for dbf name.
[S390] dasd: Use const in busid functions.
[S390] blacklist.c: removed duplicated include
[S390] vmlogrdr: module initialization function should return negative errors
[S390] sparsemem vmemmap: initialize memmap.
[S390] Remove last traces of cio_msg=.
[S390] cio: Remove CCW_CMD_SUSPEND_RECONN in front of CCW_CMD_SET_PGID.
Linus Torvalds [Thu, 15 May 2008 16:09:43 +0000 (09:09 -0700)]
Merge git://git./linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
arch/parisc/kernel/perf_asm.S: build fix
parisc: remove -traditional from assembler flags
parisc: use conditional macro for 64-bit wide ops
parisc: Remove ioctl.h content picked up from <asm-generic/ioctl.h>.
arch/parisc/kernel/unaligned.c: use time_* macros
parisc: remove redundant display of free swap space in show_mem()
drivers/parisc: replace remaining __FUNCTION__ occurrences
parisc: replace remaining __FUNCTION__ occurrences
parisc: new termios definitions
parisc: fix trivial section name warnings
Kyle McMartin [Thu, 15 May 2008 14:57:33 +0000 (10:57 -0400)]
arch/parisc/kernel/perf_asm.S: build fix
Missing <linux/init.h> header for __HEAD macro.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Kyle McMartin [Thu, 15 May 2008 14:56:36 +0000 (10:56 -0400)]
parisc: remove -traditional from assembler flags
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Kyle McMartin [Thu, 15 May 2008 14:53:57 +0000 (10:53 -0400)]
parisc: use conditional macro for 64-bit wide ops
This work enables us to remove -traditional from $AFLAGS on
parisc.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Robert P. J. Day [Wed, 14 May 2008 19:14:52 +0000 (15:14 -0400)]
parisc: Remove ioctl.h content picked up from <asm-generic/ioctl.h>.
Now that <asm-generic/ioctl.h> allows overriding of the most commonly
changed macro values, take advantage of that.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Heiko Carstens [Thu, 15 May 2008 14:52:39 +0000 (16:52 +0200)]
[S390] show_interrupts: prevent cpu hotplug when walking cpu_online_map.
Surround all the code withing show_interrupts() with
get/put_online_cpus() to prevent strange results wrt cpu hotplug.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Thu, 15 May 2008 14:52:38 +0000 (16:52 +0200)]
[S390] smp: __smp_call_function_map vs cpu_online_map fix.
Both smp_call_function() and __smp_call_function_map() access
cpu_online_map. Both functions run with preemption disabled which
protects for cpus going offline. However new cpus can be added and
therefore the cpu_online_map can change unexpectedly.
So use the call_lock to protect against changes to the cpu_online_map
in start_secondary() and all smp_call_* functions.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cornelia Huck [Thu, 15 May 2008 14:52:37 +0000 (16:52 +0200)]
[S390] tape: Use ccw_dev_id to build cdev_id.
To construct the integer containing the information from the bus_id,
it is easier to use the data from ccw_dev_id than to parse the bus_id.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Stefan Weinhuber [Thu, 15 May 2008 14:52:36 +0000 (16:52 +0200)]
[S390] dasd: fix timeout handling in interrupt handler
When the dasd_int_handler is called with an error code instead of
an irb, the associated request should be restarted. This handling
was missing from the -ETIMEDOUT case. In fact it should be done in
any case.
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cornelia Huck [Thu, 15 May 2008 14:52:35 +0000 (16:52 +0200)]
[S390] s390dbf: Use const char * for dbf name.
We should use const char * for passing the name of the debug feature
around since it will not be changed.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cornelia Huck [Thu, 15 May 2008 14:52:34 +0000 (16:52 +0200)]
[S390] dasd: Use const in busid functions.
We should use 'const char *' in the busid functions since the
strings are not modified anyway.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Huang Weiyi [Thu, 15 May 2008 14:52:33 +0000 (16:52 +0200)]
[S390] blacklist.c: removed duplicated include
Removed duplicated include <asm/cio.h>
in drivers/s390/cio/blacklist.c.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Marcin Slusarz [Thu, 15 May 2008 14:52:32 +0000 (16:52 +0200)]
[S390] vmlogrdr: module initialization function should return negative errors
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Thu, 15 May 2008 14:52:31 +0000 (16:52 +0200)]
[S390] sparsemem vmemmap: initialize memmap.
Let's just use the generic vmmemmap_alloc_block() function which
always returns initialized memory.
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cornelia Huck [Thu, 15 May 2008 14:52:30 +0000 (16:52 +0200)]
[S390] Remove last traces of cio_msg=.
cio_msg= is gone, also remove it from kernel-parameters.txt.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Michael Ernst [Thu, 15 May 2008 14:52:29 +0000 (16:52 +0200)]
[S390] cio: Remove CCW_CMD_SUSPEND_RECONN in front of CCW_CMD_SET_PGID.
CCW_CMD_SUSPEND_RECONN causes a system hang if the cable of a
reserved DASD is disconnected and connected again.
Signed-off-by: Michael Ernst <mernst@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
S.Caglar Onur [Wed, 14 May 2008 23:21:57 +0000 (16:21 -0700)]
arch/parisc/kernel/unaligned.c: use time_* macros
The functions time_before, time_before_eq, time_after, and time_after_eq are
more robust for comparing jiffies against other values.
So use the time_after() macro, defined in linux/jiffies.h, which deals with
wrapping correctl
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: S.Caglar Onur <caglar@pardus.org.tr>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Johannes Weiner [Wed, 14 May 2008 23:21:56 +0000 (16:21 -0700)]
parisc: remove redundant display of free swap space in show_mem()
show_mem() has no need to print the amount of free swap space manually because
show_free_areas() does this already and is called by the former.
The two outputs only differ in text formatting:
printk("Free swap = %lukB\n", ...);
printk("Free swap: %6ldkB\n", ...);
Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Harvey Harrison [Wed, 14 May 2008 23:21:56 +0000 (16:21 -0700)]
drivers/parisc: replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Harvey Harrison [Wed, 14 May 2008 23:21:55 +0000 (16:21 -0700)]
parisc: replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Alan Cox [Wed, 14 May 2008 23:21:54 +0000 (16:21 -0700)]
parisc: new termios definitions
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Helge Deller [Fri, 2 May 2008 20:02:48 +0000 (22:02 +0200)]
parisc: fix trivial section name warnings
This trivial patch fixes the following section warnings on PARISC:
> WARNING: vmlinux.o (.text.1): unexpected section name.
>The (.[number]+) following section name are ld generated and not expected.
> Did you forget to use "ax"/"aw" in a .S file?
> Note that for example <linux/init.h> contains
> section definitions for use in .S files.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Robert P. J. Day [Wed, 14 May 2008 23:12:53 +0000 (09:12 +1000)]
[POWERPC] macintosh: Replace deprecated __initcall with device_initcall
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Ishizaki Kou [Wed, 14 May 2008 09:05:19 +0000 (19:05 +1000)]
[POWERPC] cell: Fix section mismatches in io-workarounds code
Fix following warnings:
WARNING: arch/powerpc/platforms/cell/built-in.o(.devinit.text+0x9c): Section mismatch in reference from the function .cell_setup_phb() to the function .init.text:.iowa_register_bus()
WARNING: arch/powerpc/platforms/cell/built-in.o(.devinit.text+0xa4): Section mismatch in reference from the function .cell_setup_phb() to the function .init.text:.io_workaround_init()
Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
FUJITA Tomonori [Tue, 13 May 2008 09:07:42 +0000 (19:07 +1000)]
[POWERPC] spufs: Fix compile error
With CONFIG_VIRT_CPU_ACCOUNTING disabled, I got the following error:
linux-2.6/arch/powerpc/platforms/cell/spufs/file.c: In function 'spu_switch_log_notify':
linux-2.6/arch/powerpc/platforms/cell/spufs/file.c:2542: error: implicit declaration of function 'get_tb'
make[4]: *** [arch/powerpc/platforms/cell/spufs/file.o] Error 1
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nate Case [Mon, 12 May 2008 20:14:14 +0000 (06:14 +1000)]
[POWERPC] Fix uninitialized variable bug in copy_{to|from}_user
Calls to copy_to_user() or copy_from_user() can fail when copying N
bytes, where N is a constant less than 8, but not 1, 2, 4, or 8,
because 'ret' is not initialized and is only set if the size is 1,
2, 4 or 8, but is tested after the switch statement for any constant
size <= 8. This fixes it by initializing 'ret' to 1, causing the
code to fall through to the __copy_tofrom_user call for sizes other
than 1, 2, 4 or 8.
Signed-off-by: Dave Scidmore <dscidmore@xes-inc.com>
Signed-off-by: Nate Case <ncase@xes-inc.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Timur Tabi [Wed, 7 May 2008 19:19:59 +0000 (05:19 +1000)]
[POWERPC] Add null pointer check to of_find_property
Update function of_find_property() to return NULL if the device_node
passed to it is also NULL. Otherwise, passing NULL will cause a null
pointer dereference.
Without this, the legacy_serial driver will crash if there's no
'chosen' node in the device tree.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Wed, 30 Apr 2008 05:41:48 +0000 (15:41 +1000)]
[POWERPC] vmemmap fixes to use smaller pages
This changes vmemmap to use a different region (region 0xf) of the
address space, and to configure the page size of that region
dynamically at boot.
The problem with the current approach of always using 16M pages is that
it's not well suited to machines that have small amounts of memory such
as small partitions on pseries, or PS3's.
In fact, on the PS3, failure to allocate the 16M page backing vmmemmap
tends to prevent hotplugging the HV's "additional" memory, thus limiting
the available memory even more, from my experience down to something
like 80M total, which makes it really not very useable.
The logic used by my match to choose the vmemmap page size is:
- If 16M pages are available and there's 1G or more RAM at boot,
use that size.
- Else if 64K pages are available, use that
- Else use 4K pages
I've tested on a POWER6 (16M pages) and on an iSeries POWER3 (4K pages)
and it seems to work fine.
Note that I intend to change the way we organize the kernel regions &
SLBs so the actual region will change from 0xf back to something else at
one point, as I simplify the SLB miss handler, but that will be for a
later patch.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Luke Browning [Mon, 12 May 2008 14:36:59 +0000 (14:36 +0000)]
[POWERPC] spufs: Fix pointer reference in find_victim
If victim (not ctx) is in spu_run, add victim to rq.
Signed-off-by: Luke Browning <lukebrowning@us.ibm.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Linus Torvalds [Thu, 15 May 2008 02:30:13 +0000 (19:30 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs
* 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: fix error path during early mount
9p: make cryptic unknown error from server less scary
9p: fix flags length in net
9p: Correct fidpool creation failure in p9_client_create
9p: use struct mutex instead of struct semaphore
9p: propagate parse_option changes to client and transports
fs/9p/v9fs.c (v9fs_parse_options): Handle kstrdup and match_strdup failure.
9p: Documentation updates
add match_strlcpy() us it to make v9fs make uname and remotename parsing more robust
Linus Torvalds [Thu, 15 May 2008 02:11:36 +0000 (19:11 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Use a TS_RESTORE_SIGMASK
lmb: Make lmb debugging more useful.
lmb: Fix inconsistent alignment of size argument.
sparc: Fix mremap address range validation.
Andrew Morton [Wed, 14 May 2008 23:05:59 +0000 (16:05 -0700)]
net/irda/irnet/irnet_irda.c needs unaligned.h
net/irda/irnet/irnet_irda.c: In function 'irnet_discovery_indication':
net/irda/irnet/irnet_irda.c:1676: error: implicit declaration of function 'get_unaligned'
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Wed, 14 May 2008 23:05:58 +0000 (16:05 -0700)]
tty_check_change(): avoid taking tasklist_lock while holding tty->ctrl_lock
May 11 09:42:27 [kernel] [ 1104.496819] rarian-sk-get-c[5630]: segfault at 0 ip
7f478556caf0 sp
7fff8e3fe338 error 4 in libc-2.6.1.so[
7f47854f9000+136000]
May 11 10:59:48 [kernel] [ 2494.165792]
May 11 10:59:48 [kernel] [ 2494.165794] =======================================================
May 11 10:59:48 [kernel] [ 2494.165801] [ INFO: possible circular locking dependency detected ]
May 11 10:59:48 [kernel] [ 2494.165805] 2.6.26-rc1-00007-g91b3a7a #217
May 11 10:59:48 [kernel] [ 2494.165807] -------------------------------------------------------
May 11 10:59:48 [kernel] [ 2494.165809] less/7053 is trying to acquire lock:
May 11 10:59:48 [kernel] [ 2494.165812] (tasklist_lock){..??}, at: [<
ffffffff80232e95>] is_current_pgrp_orphaned+0x15/0x50
May 11 10:59:48 [kernel] [ 2494.165821]
May 11 10:59:48 [kernel] [ 2494.165822] but task is already holding lock:
May 11 10:59:48 [kernel] [ 2494.165824] (&tty->ctrl_lock){....}, at: [<
ffffffff803d5f31>] tty_check_change+0x61/0x110
May 11 10:59:48 [kernel] [ 2494.165831]
May 11 10:59:48 [kernel] [ 2494.165832] which lock already depends on the new lock.
May 11 10:59:48 [kernel] [ 2494.165833]
May 11 10:59:48 [kernel] [ 2494.165835]
May 11 10:59:48 [kernel] [ 2494.165836] the existing dependency chain (in reverse order) is:
May 11 10:59:48 [kernel] [ 2494.165838]
May 11 10:59:48 [kernel] [ 2494.165839] -> #2 (&tty->ctrl_lock){....}:
May 11 10:59:48 [kernel] [ 2494.165843] [<
ffffffff80253796>] __lock_acquire+0xf86/0x1080
May 11 10:59:48 [kernel] [ 2494.165851] [<
ffffffff80253922>] lock_acquire+0x92/0xc0
May 11 10:59:48 [kernel] [ 2494.165858] [<
ffffffff804deee0>] _spin_lock_irqsave+0x40/0x60
May 11 10:59:48 [kernel] [ 2494.165866] [<
ffffffff803d31b5>] __proc_set_tty+0x35/0xe0
May 11 10:59:48 [kernel] [ 2494.165873] [<
ffffffff803d76d4>] tty_ioctl+0xbf4/0xfe0
May 11 10:59:48 [kernel] [ 2494.165880] [<
ffffffff802a05e1>] vfs_ioctl+0x31/0x90
May 11 10:59:48 [kernel] [ 2494.165888] [<
ffffffff802a06b3>] do_vfs_ioctl+0x73/0x2d0
May 11 10:59:48 [kernel] [ 2494.165895] [<
ffffffff802a095a>] sys_ioctl+0x4a/0x80
May 11 10:59:48 [kernel] [ 2494.165902] [<
ffffffff8020b5ab>] system_call_after_swapgs+0x7b/0x80
May 11 10:59:48 [kernel] [ 2494.165910] [<
ffffffffffffffff>] 0xffffffffffffffff
May 11 10:59:48 [kernel] [ 2494.165924]
May 11 10:59:48 [kernel] [ 2494.165925] -> #1 (&sighand->siglock){++..}:
May 11 10:59:48 [kernel] [ 2494.165929] [<
ffffffff80253796>] __lock_acquire+0xf86/0x1080
May 11 10:59:48 [kernel] [ 2494.165936] [<
ffffffff80253922>] lock_acquire+0x92/0xc0
May 11 10:59:48 [kernel] [ 2494.165943] [<
ffffffff804dec1f>] _spin_lock+0x2f/0x40
May 11 10:59:48 [kernel] [ 2494.165951] [<
ffffffff8022d5a3>] copy_process+0x973/0x1210
May 11 10:59:48 [kernel] [ 2494.165959] [<
ffffffff8022df12>] do_fork+0x82/0x2f0
May 11 10:59:48 [kernel] [ 2494.165967] [<
ffffffff8020bfe1>] kernel_thread+0x81/0xde
May 11 10:59:48 [kernel] [ 2494.165974] [<
ffffffff8020c048>] child_rip+0xa/0x12
May 11 10:59:48 [kernel] [ 2494.165981] [<
ffffffffffffffff>] 0xffffffffffffffff
May 11 10:59:48 [kernel] [ 2494.166038]
May 11 10:59:48 [kernel] [ 2494.166039] -> #0 (tasklist_lock){..??}:
May 11 10:59:48 [kernel] [ 2494.166043] [<
ffffffff802535ab>] __lock_acquire+0xd9b/0x1080
May 11 10:59:48 [kernel] [ 2494.166050] [<
ffffffff80253922>] lock_acquire+0x92/0xc0
May 11 10:59:48 [kernel] [ 2494.166057] [<
ffffffff804dede2>] _read_lock+0x32/0x50
May 11 10:59:48 [kernel] [ 2494.166063] [<
ffffffff80232e95>] is_current_pgrp_orphaned+0x15/0x50
May 11 10:59:48 [kernel] [ 2494.166071] [<
ffffffff803d5f80>] tty_check_change+0xb0/0x110
May 11 10:59:48 [kernel] [ 2494.166078] [<
ffffffff803dac5f>] set_termios+0x1f/0x4c0
May 11 10:59:48 [kernel] [ 2494.166085] [<
ffffffff803db379>] tty_mode_ioctl+0x279/0x3e0
May 11 10:59:48 [kernel] [ 2494.166092] [<
ffffffff803db51d>] n_tty_ioctl+0x3d/0x260
May 11 10:59:48 [kernel] [ 2494.166100] [<
ffffffff803d6c34>] tty_ioctl+0x154/0xfe0
May 11 10:59:48 [kernel] [ 2494.166107] [<
ffffffff802a05e1>] vfs_ioctl+0x31/0x90
May 11 10:59:48 [kernel] [ 2494.166114] [<
ffffffff802a06b3>] do_vfs_ioctl+0x73/0x2d0
May 11 10:59:48 [kernel] [ 2494.166121] [<
ffffffff802a095a>] sys_ioctl+0x4a/0x80
May 11 10:59:48 [kernel] [ 2494.166128] [<
ffffffff8020b5ab>] system_call_after_swapgs+0x7b/0x80
May 11 10:59:48 [kernel] [ 2494.166135] [<
ffffffffffffffff>] 0xffffffffffffffff
May 11 10:59:48 [kernel] [ 2494.166142]
May 11 10:59:48 [kernel] [ 2494.166143] other info that might help us debug this:
May 11 10:59:48 [kernel] [ 2494.166144]
May 11 10:59:48 [kernel] [ 2494.166146] 1 lock held by less/7053:
May 11 10:59:48 [kernel] [ 2494.166148] #0: (&tty->ctrl_lock){....}, at: [<
ffffffff803d5f31>] tty_check_change+0x61/0x110
May 11 10:59:48 [kernel] [ 2494.166155]
May 11 10:59:48 [kernel] [ 2494.166156] stack backtrace:
May 11 10:59:48 [kernel] [ 2494.166159] Pid: 7053, comm: less Not tainted 2.6.26-rc1-00007-g91b3a7a #217
May 11 10:59:48 [kernel] [ 2494.166161]
May 11 10:59:48 [kernel] [ 2494.166162] Call Trace:
May 11 10:59:48 [kernel] [ 2494.166168] [<
ffffffff80251223>] print_circular_bug_tail+0x83/0x90
May 11 10:59:48 [kernel] [ 2494.166172] [<
ffffffff80250889>] ? print_circular_bug_entry+0x49/0x60
May 11 10:59:48 [kernel] [ 2494.166178] [<
ffffffff802535ab>] __lock_acquire+0xd9b/0x1080
May 11 10:59:48 [kernel] [ 2494.166184] [<
ffffffff80232e95>] ? is_current_pgrp_orphaned+0x15/0x50
May 11 10:59:48 [kernel] [ 2494.166189] [<
ffffffff80253922>] lock_acquire+0x92/0xc0
May 11 10:59:48 [kernel] [ 2494.166206] [<
ffffffff803d5f80>] tty_check_change+0xb0/0x110
May 11 10:59:48 [kernel] [ 2494.166211] [<
ffffffff803dac5f>] set_termios+0x1f/0x4c0
May 11 10:59:48 [kernel] [ 2494.166216] [<
ffffffff803d3423>] ? tty_ldisc_try+0x23/0x60
May 11 10:59:48 [kernel] [ 2494.166220] [<
ffffffff803d3444>] ? tty_ldisc_try+0x44/0x60
May 11 10:59:48 [kernel] [ 2494.166224] [<
ffffffff804df2c5>] ? _spin_unlock_irqrestore+0x65/0x80
May 11 10:59:48 [kernel] [ 2494.166230] [<
ffffffff803db379>] tty_mode_ioctl+0x279/0x3e0
May 11 10:59:48 [kernel] [ 2494.166234] [<
ffffffff803d3444>] ? tty_ldisc_try+0x44/0x60
May 11 10:59:48 [kernel] [ 2494.166239] [<
ffffffff803db51d>] n_tty_ioctl+0x3d/0x260
May 11 10:59:48 [kernel] [ 2494.166244] [<
ffffffff803d6c34>] tty_ioctl+0x154/0xfe0
May 11 10:59:48 [kernel] [ 2494.166249] [<
ffffffff80252baa>] ? __lock_acquire+0x39a/0x1080
May 11 10:59:48 [kernel] [ 2494.166256] [<
ffffffff80252baa>] ? __lock_acquire+0x39a/0x1080
May 11 10:59:48 [kernel] [ 2494.166263] [<
ffffffff80252baa>] ? __lock_acquire+0x39a/0x1080
May 11 10:59:48 [kernel] [ 2494.166269] [<
ffffffff802a05e1>] vfs_ioctl+0x31/0x90
May 11 10:59:48 [kernel] [ 2494.166274] [<
ffffffff802a06b3>] do_vfs_ioctl+0x73/0x2d0
May 11 10:59:48 [kernel] [ 2494.166280] [<
ffffffff802a095a>] sys_ioctl+0x4a/0x80
May 11 10:59:48 [kernel] [ 2494.166286] [<
ffffffff8020b5ab>] system_call_after_swapgs+0x7b/0x80
May 11 10:59:48 [kernel] [ 2494.166292]
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>