Valentine Barshak [Thu, 23 Apr 2009 10:55:06 +0000 (10:55 +0000)] 
powerpc/44x: Correct memory size calculation for denali-based boards
Some U-Boot versions incorrectly set the number of chipselects to two
for Sequoia/Rainier boards while they only have one chipselect hardwired.
This patch adds a workaround for this, hardcoding the number of chipselects
to one for sequioa/rainer board models and reading the actual value from
the memory controller register DDR0_10 otherwise.
It also fixes another error in the way ibm4xx_denali_fixup_memsize
calculates memory size. When testing the DDR_REDUC bit, the polarity is
backwards. A "1" implies 32-bit wide memory while a "0" implies 64-bit
wide memory.
Signed-off-by: Mikhail Zolotaryov <lebon@lebon.org.ua>
Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Steven A. Falco <sfalco@harris.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Josh Boyer [Fri, 24 Apr 2009 12:57:47 +0000 (08:57 -0400)] 
maintainers: Fix PowerPC 4xx git tree
Update the git tree URL for the PowerPC 4xx git tree.
Reported-by: Denis ChengRq <crquan@gmail.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Bartlomiej Zolnierkiewicz [Tue, 21 Apr 2009 09:04:37 +0000 (09:04 +0000)] 
powerpc: Fix modular build of ide-pmac when mediabay is built in
Now that the powermac IDE host driver can be modular, we need to
export check_media_bay_by_base() and media_bay_set_ide_infos()
from drivers/macintosh/mediabay.c for it.
This fixes the following build error:
> CC [M] drivers/ide/pmac.o
> drivers/ide/pmac.c: In function ‘pmac_ide_init_dev’:
> drivers/ide/pmac.c:955: error: implicit declaration of function
> ‘check_media_bay_by_base’
> drivers/ide/pmac.c: In function ‘pmac_ide_setup_device’:
> drivers/ide/pmac.c:1090: error: implicit declaration of function
> ‘media_bay_set_ide_infos’
> make[2]: *** [drivers/ide/pmac.o] Error 1
> make[1]: *** [drivers/ide] Error 2
> make: *** [drivers] Error 2
Reported-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geoff Levand [Fri, 17 Apr 2009 06:36:37 +0000 (06:36 +0000)] 
powerpc/pasemi: Fix build error on UP
A non-SMP version of smp_send_stop() is now included in smp.h.
Remove the unneeded definition in the pasemi setup.c.
Fixes build errors like these when CONFIG_SMP=n:
arch/powerpc/platforms/pasemi/setup.c:48: error: redefinition of ‘smp_send_stop’
include/linux/smp.h:125: error: previous definition of 'smp_send_stop' was here
Reported-by: subrata@linux.vnet.ibm.com
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Alexander Beregalov [Fri, 17 Apr 2009 00:15:13 +0000 (00:15 +0000)] 
powerpc: Make macintosh/mediabay driver depend on CONFIG_BLOCK
Fixes this build error:
In file included from drivers/macintosh/mediabay.c:21:
include/linux/ide.h:605: error: field 'request_sense_rq' has incomplete type
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geoff Levand [Thu, 16 Apr 2009 09:05:40 +0000 (09:05 +0000)]
maintainers: Fix PS3 patterns
Correct the MAINTAINERS file patterns for PS3. Removes some PS3
patterns that were under 'CELL BROADBAND ENGINE ARCHITECTURE', and
adds missing PS3 sound and RTC driver patterns.
CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geoff Levand [Thu, 16 Apr 2009 09:05:38 +0000 (09:05 +0000)]
powerpc/ps3: Fix CONFIG_PS3_FLASH=n build warning
Fix build warnings like these when CONFIG_PS3_FLASH=n:
arch/powerpc/platforms/ps3/os-area.c: warning: 'update_flash_db' defined but not used
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Andreas Schwab [Thu, 16 Apr 2009 06:22:01 +0000 (06:22 +0000)] 
powerpc/32: Don't clobber personality flags on exec
Now that ppc32 implements address randomization it also wants to inherit
personality flags like ADDR_NO_RANDOMIZE across exec, for things like
`setarch ppc -R' to work. But the ppc32 version of SET_PERSONALITY
forcefully sets PER_LINUX, clearing all personality flags. So be
careful about preserving the flags.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Thu, 16 Apr 2009 04:47:32 +0000 (04:47 +0000)] 
powerpc: Fix crash on CPU hotplug
early_init_mmu_secondary() is called at CPU hotplug time, so it
must be marked as __cpuinit, not __init.
Caused by
757c74d2 ("powerpc/mm: Introduce early_init_mmu() on 64-bit").
Tested-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 22 Apr 2009 03:02:09 +0000 (13:02 +1000)] 
Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6 into merge
Kumar Gala [Wed, 15 Apr 2009 21:48:50 +0000 (16:48 -0500)] 
powerpc/85xx: Remove defconfigs that mpc85xx_{smp_}defconfig cover
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Kumar Gala [Wed, 15 Apr 2009 21:33:08 +0000 (16:33 -0500)]
powerpc/85xx: Added SMP defconfig
Since the vast majority of 85xx platforms are UP we introduce a new SMP
config for the few platforms that have more than one core. Beyond
CONFIG_SMP=y and its dependencies this should be identical to
mpc85xx_defconfig.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Kumar Gala [Tue, 21 Apr 2009 20:40:51 +0000 (15:40 -0500)]
powerpc/85xx: Enabled a bunch of FSL specific drivers/options
* Add new 85xx boards
* Added QE/FSL gpio
* Enabled PHY drivers that exist on various boards
* Enabled FS_ENET & UCC ethernet drivers (CPM2 & QE)
* FSL HW Crypto Engine
* CPM I2C
* QE Serial
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Kumar Gala [Wed, 15 Apr 2009 21:10:20 +0000 (16:10 -0500)]
powerpc/85xx: Updated generic mpc85xx_defconfig
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Timur Tabi [Mon, 20 Apr 2009 15:54:35 +0000 (10:54 -0500)] 
powerpc: don't disable SATA interrupts on Freescale MPC8610 HPCD
The ULI 1575 PCI quirk function for the Freescale MPC8610 HPCD was disabling
the SATA INTx interrupt, even when SATA support was enabled. This was safe,
because the SATA driver re-enabled it. But with commit
a5bfc471 ("ahci: drop
intx manipulation on msi enable"), the driver no longer does this, and so SATA
support on the 8610 HPCD is broken.
The original quirk function disabled INTx because it caused some other
interrupt problem during early development on this board, but no one remembers
any more what that problem was, and it doesn't seem to occur any more.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Anton Vorontsov [Sat, 18 Apr 2009 17:48:52 +0000 (21:48 +0400)] 
fsl_rio: Pass the proper device to dma mapping routines
The driver should pass a device that specifies internal DMA ops, but
currently NULL pointer is passed, therefore following bug appears
during boot up:
------------[ cut here ]------------
Kernel BUG at
c0018a7c [verbose debug info unavailable]
Oops: Exception in kernel mode, sig: 5 [#1]
[...]
NIP [
c0018a7c] fsl_rio_doorbell_init+0x34/0x60
LR [
c0018a70] fsl_rio_doorbell_init+0x28/0x60
Call Trace:
[
ef82bda0] [
c0018a70] fsl_rio_doorbell_init+0x28/0x60 (unreliable)
[
ef82bdc0] [
c0019160] fsl_rio_setup+0x6b8/0x84c
[
ef82be20] [
c02d28ac] fsl_of_rio_rpn_probe+0x30/0x50
[
ef82be40] [
c0234f20] of_platform_device_probe+0x5c/0x84
[...]
---[ end trace
561bb236c800851f ]---
This patch fixes the issue.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Ilpo Järvinen [Mon, 20 Apr 2009 18:18:43 +0000 (12:18 -0600)] 
powerpc: Fix of_node_put() exit path in of_irq_map_one()
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Grant Likely [Mon, 20 Apr 2009 17:33:12 +0000 (11:33 -0600)] 
powerpc/5200: defconfig updates
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Grant Likely [Thu, 16 Apr 2009 21:11:54 +0000 (15:11 -0600)]
powerpc/5200: Add FLASH nodes to lite5200 device tree
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Stefan Roese [Thu, 16 Apr 2009 21:11:54 +0000 (15:11 -0600)] 
powerpc/device-tree: Document MTD nodes with multiple "reg" tuples
Add binding for mtd nodes with multiple reg tuples. Multiple reg tuples
are used when the flash region covers multiple devices of the same type,
but not necessarily the same size.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Stefan Roese [Thu, 16 Apr 2009 21:11:54 +0000 (15:11 -0600)]
powerpc/of-device-tree: Factor MTD physmap bindings out of booting-without-of
It's easier to find bindings descriptions in separate files. So factor
out the MTD physmap bindings into a separate file to not clutter
booting-without-of.txt more.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Anton Vorontsov [Thu, 16 Apr 2009 15:58:44 +0000 (09:58 -0600)]
powerpc/5200: Bring the legacy fsl_spi_platform_data hooks back
In commit
364fdbc00fbdd409ade63500710123fe323aa164 ("spi_mpc83xx:
rework chip selects handling"), I merged activate_cs and deactivate_cs
hooks into cs_control, but I overlooked that mpc52xx_psc_spi driver
is using these hooks too. And that resulted in the following build
failure:
CC drivers/spi/mpc52xx_psc_spi.o
drivers/spi/mpc52xx_psc_spi.c: In function 'mpc52xx_psc_spi_do_probe':
drivers/spi/mpc52xx_psc_spi.c:398: error: 'struct fsl_spi_platform_data'
has no member named 'activate_cs'
drivers/spi/mpc52xx_psc_spi.c:399: error: 'struct fsl_spi_platform_data'
has no member named 'deactivate_cs'
make[2]: *** [drivers/spi/mpc52xx_psc_spi.o] Error 1
This patch simply adds the legacy hooks back for 2.6.30, and for
2.6.31 we'll convert the driver to ->cs_control.
Reported-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Sachin Sant [Tue, 14 Apr 2009 14:35:55 +0000 (14:35 +0000)] 
powerpc: pseries/dtl.c should include asm/firmware.h
A randconfig build on powerpc failed with:
dtl.c: In function 'dtl_init':
dtl.c:238: error: implicit declaration of function 'firmware_has_feature'
dtl.c:238: error: 'FW_FEATURE_SPLPAR' undeclared (first use in this function)
- We need firmware.h for these definitions.
Signed-off-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 13 Apr 2009 14:09:09 +0000 (14:09 +0000)]
powerpc: Fix data-corrupting bug in __futex_atomic_op
Richard Henderson pointed out that the powerpc __futex_atomic_op has a
bug: it will write the wrong value if the stwcx. fails and it has to
retry the lwarx/stwcx. loop, since 'oparg' will have been overwritten
by the result from the first time around the loop. This happens
because it uses the same register for 'oparg' (an input) as it uses
for the result.
This fixes it by using separate registers for 'oparg' and 'ret'.
Cc: stable@kernel.org
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mike Mason [Fri, 10 Apr 2009 08:57:03 +0000 (08:57 +0000)] 
powerpc/pseries: Set error_state to pci_channel_io_normal in eeh_report_reset()
While adding native EEH support to Emulex and Qlogic drivers, it was
discovered that dev->error_state was set to pci_io_channel_normal too
late in the recovery process. These drivers rely on error_state to
determine if they can access the device in their slot_reset callback,
thus error_state needs to be set to pci_io_channel_normal in
eeh_report_reset(). Below is a detailed explanation (courtesy of Richard
Lary) as to why this is necessary.
Background:
PCI MMIO or DMA accesses to a frozen slot generate additional EEH
errors. If the number of additional EEH errors exceeds EEH_MAX_FAILS the
adapter will be shutdown. To avoid triggering excessive EEH errors and
an undesirable adapter shutdown, some drivers use the
pci_channel_offline(dev) wrapper function to return a Boolean value
based on the value of pci_dev->error_state to determine if PCI MMIO or
DMA accesses are safe. If the wrapper returns TRUE, drivers must not
make PCI MMIO or DMA access to their hardware.
The pci_dev structure member error_state reflects one of three values,
1) pci_channel_io_normal, 2) pci_channel_io_frozen, 3)
pci_channel_io_perm_failure. Function pci_channel_offline(dev) returns
TRUE if error_state is pci_channel_io_frozen or pci_channel_io_perm_failure.
The EEH driver sets pci_dev->error_state to pci_channel_io_frozen at the
point where the PCI slot is frozen. Currently, the EEH driver restores
dev->error_state to pci_channel_io_normal in eeh_report_resume() before
calling the driver's resume callback. However, when the EEH driver calls
the driver's slot_reset callback() from eeh_report_reset(), it
incorrectly indicates the error state is still pci_channel_io_frozen.
Waiting until eeh_report_resume() to restore dev->error_state to
pci_channel_io_normal is too late for Emulex and QLogic FC drivers and
any other drivers which are designed to use common code paths in these
two cases: i) those called after the driver's slot_reset callback() and
ii) those called after the PCI slot is frozen but before the driver's
slot_reset callback is called. Case i) all driver paths executed to
reinitialize the hardware after a reset and case ii) all code paths
executed by driver kernel threads that run asynchronous to the main
driver thread, such as interrupt handlers and worker threads to process
driver work queues.
Emulex and QLogic FC drivers are designed with common code paths which
require that pci_channel_offline(dev) reflect the true state of the
hardware. The state transitions that the hardware takes from Normal
Operations to Slot Frozen to Reset to Normal Operations are documented
in the Power Architecture™ Platform Requirements+ (PAPR+) in Table 75.
PE State Control.
PAPR defines the following 3 states:
0 -- Not reset, Not EEH stopped, MMIO load/store allowed, DMA allowed
(Normal Operations)
1 -- Reset, Not EEH stopped, MMIO load/store disabled, DMA disabled
2 -- Not reset, EEH stopped, MMIO load/store disabled, DMA disabled
(Slot Frozen)
An EEH error places the slot in state 2 (Frozen) and the adapter driver
is notified that an EEH error was detected. If the adapter driver
returns PCI_ERS_RESULT_NEED_RESET, the EEH driver calls
eeh_reset_device() to place the slot into state 1 (Reset) and
eeh_reset_device completes by placing the slot into State 0 (Normal
Operations). Upon return from eeh_reset_device(), the EEH driver calls
eeh_report_reset, which then calls the adapter's slot_reset callback. At
the time the adapter's slot_reset callback is called, the true state of
the hardware is Normal Operations and should be accurately reflected by
setting dev->error_state to pci_channel_io_normal.
The current implementation of EEH driver does not do so and requires
this change to correct this deficiency.
Signed-off-by: Mike Mason <mmlnx@us.ibm.com>
Acked-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Hugh Dickins [Mon, 6 Apr 2009 11:01:15 +0000 (11:01 +0000)] 
powerpc: Allow 256kB pages with SHMEM
Now that shmem's divisions by zero and SHMEM_MAX_BYTES are fixed,
let powerpc 256kB pages coexist with CONFIG_SHMEM again.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Linus Torvalds [Tue, 14 Apr 2009 20:51:48 +0000 (13:51 -0700)] 
Linux 2.6.30-rc2
Linus Torvalds [Tue, 14 Apr 2009 20:16:40 +0000 (13:16 -0700)]
Merge branch 'drm-intel-next' of git://git./linux/kernel/git/anholt/drm-intel
* 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
drm/i915: fix scheduling while holding the new active list spinlock
drm/i915: Allow tiling of objects with bit 17 swizzling by the CPU.
drm/i915: Correctly set the write flag for get_user_pages in pread.
drm/i915: Fix use of uninitialized var in
40a5f0de
drm/i915: indicate framebuffer restore key in SysRq help message
drm/i915: sync hdmi detection by hdmi identifier with 2D
drm/i915: Fix a mismerge of the IGD patch (new .find_pll hooks missed)
drm/i915: Implement batch and ring buffer dumping
Hugh Dickins [Tue, 14 Apr 2009 18:25:42 +0000 (19:25 +0100)]
x86 microcode: revert some work_on_cpu
Revert part of
af5c820a3169e81af869c113e18ec7588836cd50 ("x86: cpumask:
use work_on_cpu in arch/x86/kernel/microcode_core.c")
That change is causing only one Intel CPU's microcode to be updated e.g.
microcode: CPU3 updated from revision 0x9 to 0x17, date = 2005-04-22
where before it announced that also for CPU0 and CPU1 and CPU2.
We cannot use work_on_cpu() in the CONFIG_MICROCODE_OLD_INTERFACE code,
because Intel's request_microcode_user() involves a copy_from_user() from
/sbin/microcode_ctl, which therefore needs to be on that CPU at the time.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Shaohua Li [Wed, 8 Apr 2009 02:58:23 +0000 (10:58 +0800)] 
drm/i915: fix scheduling while holding the new active list spinlock
regression caused by commit
5e118f4139feafe97e913df67b1f7c1e5083e535:
i915_gem_object_move_to_inactive() should be called in task context,
as it calls fput();
Signed-off-by: Shaohua Li<shaohua.li@intel.com>
[anholt: Add more detail to the comment about the lock break that's added]
Signed-off-by: Eric Anholt <eric@anholt.net>
Linus Torvalds [Tue, 14 Apr 2009 17:12:31 +0000 (10:12 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
lockdep: warn about lockdep disabling after kernel taint, fix
Linus Torvalds [Tue, 14 Apr 2009 17:12:07 +0000 (10:12 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mszeredi/fuse
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix "direct_io" private mmap
fuse: fix argument type in fuse_get_user_pages()
Linus Torvalds [Tue, 14 Apr 2009 17:10:53 +0000 (10:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
nilfs2: fix possible mismatch of sufile counters on recovery
nilfs2: segment usage file cleanups
nilfs2: fix wrong accounting and duplicate brelse in nilfs_sufile_set_error
nilfs2: simplify handling of active state of segments fix
nilfs2: remove module version
nilfs2: fix lockdep recursive locking warning on meta data files
nilfs2: fix lockdep recursive locking warning on bmap
nilfs2: return f_fsid for statfs2
Linus Torvalds [Tue, 14 Apr 2009 17:10:16 +0000 (10:10 -0700)]
Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Add missing FILE tag to MAINTAINERS
microblaze: remove duplicated #include's
microblaze: struct device - replace bus_id with dev_name()
microblaze: Simplify copy_thread()
microblaze: Add TIMESTAMPING constants to socket.h
microblaze: Add missing empty ftrace.h file
microblaze: Fix problem with removing zero length files
Linus Torvalds [Tue, 14 Apr 2009 17:00:42 +0000 (10:00 -0700)]
Merge git://git./linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Add in PCI bus for DMA API debugging.
sh: Pre-allocate a reasonable number of DMA debug entries.
sh: sh7786: modify usb setup timeout judgment bug.
MAINTAINERS: Update sh architecture file patterns.
sh: ap325: use edge control for ov772x camera
sh: Plug in support for ARCH=sh64 using sh SRCARCH.
sh: urquell: Fix up address mapping in board comments.
sh: Add support for DMA API debugging.
sh: Provide cpumask_of_pcibus() to fix NUMA build.
sh: urquell: Add board comment
sh: wire up sys_preadv/sys_pwritev() syscalls.
sh: sh7785lcr: fix PCI address map for 32-bit mode
sh: intc: Added resume from hibernation support to the intc
David Howells [Tue, 14 Apr 2009 16:08:34 +0000 (17:08 +0100)] 
Fix lpfc_parse_bg_err()'s use of do_div()
Fix lpfc_parse_bg_err()'s use of do_div(). It should be passing a 64-bit
variable as the first parameter. However, since it's only using a 32-bit
variable, it doesn't need to use do_div() at all, but can instead use the
division operator.
This deals with the following warnings:
CC drivers/scsi/lpfc/lpfc_scsi.o
drivers/scsi/lpfc/lpfc_scsi.c: In function 'lpfc_parse_bg_err':
drivers/scsi/lpfc/lpfc_scsi.c:1397: warning: comparison of distinct pointer types lacks a cast
drivers/scsi/lpfc/lpfc_scsi.c:1397: warning: right shift count >= width of type
drivers/scsi/lpfc/lpfc_scsi.c:1397: warning: passing argument 1 of '__div64_32' from incompatible pointer type
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Leandro Dorileo [Tue, 14 Apr 2009 13:59:51 +0000 (14:59 +0100)] 
tty: Update some of the USB kernel doc
Updates some usb_serial_port members documentation.
Signed-off-by: Leandro Dorileo <ldorileo@gmail.com>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tony Breeds [Tue, 14 Apr 2009 13:58:41 +0000 (14:58 +0100)] 
parport_pc: Fix build failure drivers/parport/parport_pc.c for powerpc
In commit
51dcdfec6a274afc1c6fce180d582add9ff512c0 ("parport: Use the
PCI IRQ if offered") parport_pc_probe_port() gained an irqflags arg.
This isn't being supplied on powerpc. This patch make powerpc fallback
to the old behaviour, that is using "0" for irqflags.
Fixes build failure:
In file included from drivers/parport/parport_pc.c:68:
arch/powerpc/include/asm/parport.h: In function 'parport_pc_find_nonpci_ports':
arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port'
arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port'
arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port'
make[3]: *** [drivers/parport/parport_pc.o] Error 1
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Tue, 14 Apr 2009 13:58:23 +0000 (14:58 +0100)] 
parport: Fix various uses of parport_pc
These got overlooked first time around.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Tue, 14 Apr 2009 13:58:11 +0000 (14:58 +0100)]
tty: Fix leak in ti-usb
If the ti-usb adapter returns an zero data length frame (which happens)
then we leak a kref. Found by Christoph Mair <christoph.mair@gmail.com>
who proposed a patch. The patch here is different as Christoph's patch
didn't work for the case where tty = NULL and data arrived but Christoph
did all the hard work chasing it down.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Tue, 14 Apr 2009 13:57:36 +0000 (14:57 +0100)]
cdc-acm: Fix long standing abuse of tty->low_latency
ACM sets the low latency flag but calls the flip buffer routines from
IRQ context which isn't permitted (and as of 2.6.29 causes a warning
hence this one was caught)
Fortunatelt ACM doesn't need to set this flag in the first place as it
only set it to work around problems in ancient (pre tty flip rewrite)
kernels.
Reported-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michal Simek [Tue, 14 Apr 2009 09:38:57 +0000 (11:38 +0200)] 
microblaze: Add missing FILE tag to MAINTAINERS
Signed-off-by: Michal Simek <monstr@monstr.eu>
Ingo Molnar [Tue, 14 Apr 2009 09:03:12 +0000 (11:03 +0200)] 
lockdep: warn about lockdep disabling after kernel taint, fix
Impact: build fix for Sparc and s390
Stephen Rothwell reported that the Sparc build broke:
In file included from kernel/panic.c:12:
include/linux/debug_locks.h: In function '__debug_locks_off':
include/linux/debug_locks.h:15: error: implicit declaration of function 'xchg'
due to:
9eeba61: lockdep: warn about lockdep disabling after kernel taint
There is some inconsistency between architectures about where exactly
xchg() is defined.
The traditional place is in system.h but the more logical point for it
is in atomic.h - where most architectures (especially new ones) have
it defined. These architecture also still offer it via system.h.
Some, such as Sparc or s390 only have it in asm/system.h and not available
via asm/atomic.h at all.
Use the widest set of headers in debug_locks.h and also include asm/system.h.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <
20090414144317.
026498df.sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Huang Weiyi [Mon, 13 Apr 2009 22:56:15 +0000 (06:56 +0800)] 
microblaze: remove duplicated #include's
Remove duplicated #include's in
arch/microblaze/include/asm/io.h
arch/microblaze/kernel/prom.c
arch/microblaze/kernel/ptrace.c
arch/microblaze/kernel/signal.c
arch/microblaze/kernel/sys_microblaze.c
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
Michal Simek [Tue, 14 Apr 2009 07:38:06 +0000 (09:38 +0200)]
microblaze: struct device - replace bus_id with dev_name()
Signed-off-by: Michal Simek <monstr@monstr.eu>
Michal Simek [Tue, 14 Apr 2009 07:18:19 +0000 (09:18 +0200)]
microblaze: Simplify copy_thread()
Removing nr parameter from copy_tread function
commit
6f2c55b843836d26528c56a0968689accaedbc67
Signed-off-by: Michal Simek <monstr@monstr.eu>
Michal Simek [Tue, 14 Apr 2009 07:16:01 +0000 (09:16 +0200)]
microblaze: Add TIMESTAMPING constants to socket.h
This changes was introduce with
commit:
cb9eff097831007afb30d64373f29d99825d0068
net: new user space API for time stamping of incoming and outgoing packets
Signed-off-by: Michal Simek <monstr@monstr.eu>
Michal Simek [Tue, 14 Apr 2009 06:37:30 +0000 (08:37 +0200)]
microblaze: Add missing empty ftrace.h file
Signed-off-by: Michal Simek <monstr@monstr.eu>
Michal Simek [Mon, 13 Apr 2009 18:51:22 +0000 (20:51 +0200)]
microblaze: Fix problem with removing zero length files
Adding one new line was recommended solution.
Test with make distclean
Tested-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
Paul Mundt [Tue, 14 Apr 2009 06:23:40 +0000 (15:23 +0900)] 
sh: Add in PCI bus for DMA API debugging.
This adds in the pci_bus_type for DMA API debug.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt [Tue, 14 Apr 2009 06:22:15 +0000 (15:22 +0900)]
sh: Pre-allocate a reasonable number of DMA debug entries.
This prevents the DMA API debugging from running out of entries right
away on boot. Defines 4096 entries by default, which while a bit on the
heavy side, ought to leave enough breathing room for some time.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Linus Torvalds [Tue, 14 Apr 2009 01:16:09 +0000 (18:16 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
tomoyo: version bump to 2.2.0.
tomoyo: add Documentation/tomoyo.txt
Linus Torvalds [Tue, 14 Apr 2009 01:09:20 +0000 (18:09 -0700)]
Fix quilt merge error in acpi-cpufreq.c
We ended up incorrectly using '&cur' instead of '&readin' in the
work_on_cpu() -> smp_call_function_single() transformation in commit
01599fca6758d2cd133e78f87426fc851c9ea725 ("cpufreq: use
smp_call_function_[single|many]() in acpi-cpufreq.c").
Andrew explains:
"OK, the acpi tree went and had conflicting changes merged into it after
I'd written the patch and it appears that I incorrectly reverted part
of
18b2646fe3babeb40b34a0c1751e0bf5adfdc64c while fixing the resulting
rejects.
Switching it to `readin' looks correct."
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tetsuo Handa [Wed, 8 Apr 2009 13:31:28 +0000 (22:31 +0900)] 
tomoyo: version bump to 2.2.0.
Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Mon, 13 Apr 2009 02:04:19 +0000 (11:04 +0900)]
tomoyo: add Documentation/tomoyo.txt
Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Linus Torvalds [Mon, 13 Apr 2009 22:30:20 +0000 (15:30 -0700)]
Merge branch 'for-rc1/xen/core' of git://git./linux/kernel/git/jeremy/xen
* 'for-rc1/xen/core' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen:
xen: add FIX_TEXT_POKE to fixmap
xen: honour VCPU availability on boot
xen: clean up gate trap/interrupt constants
xen: set _PAGE_NX in __supported_pte_mask before pagetable construction
xen: resume interrupts before system devices.
xen/mmu: weaken flush_tlb_other test
xen/mmu: some early pagetable cleanups
Xen: Add virt_to_pfn helper function
x86-64: remove PGE from must-have feature list
xen: mask XSAVE from cpuid
NULL noise: arch/x86/xen/smp.c
xen: remove xen_load_gdt debug
xen: make xen_load_gdt simpler
xen: clean up xen_load_gdt
xen: split construction of p2m mfn tables from registration
xen: separate p2m allocation from setting
xen: disable preempt for leave_lazy_mmu
Kuninori Morimoto [Fri, 10 Apr 2009 00:54:07 +0000 (00:54 +0000)] 
sh: sh7786: modify usb setup timeout judgment bug.
This corrects a race with the PHY RST bit not being set properly if the
PLL status changes right before timeout. This resulted in it potentially
failing even if the device came up in time.
Special thanks to Mr. Juha Leppanen and Iwamatsu-san for reporting this
out and reviewing it.
Reported-by: Juha Leppanen <juha_motorsportcom@luukku.com>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Tested-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Jean Delvare [Mon, 13 Apr 2009 21:40:21 +0000 (14:40 -0700)] 
edac: use to_delayed_work()
The edac-core driver includes code which assumes that the work_struct
which is included in every delayed_work is the first member of that
structure. This is currently the case but might change in the future, so
use to_delayed_work() instead, which doesn't make such an assumption.
linux-2.6.30-rc1 has the to_delayed_work() function that will allow this
patch to work
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Haran [Mon, 13 Apr 2009 21:40:20 +0000 (14:40 -0700)] 
edac: fix local pci_write_bits32
Fix the edac local pci_write_bits32 to properly note the 'escape' mask if
all ones in a 32-bit word.
Currently no consumer of this function uses that mask, so there is no
danger to existing code.
Signed-off-by: Jeff Haran <jharan@Brocade.COM>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Robin Holt [Mon, 13 Apr 2009 21:40:19 +0000 (14:40 -0700)] 
sgi-xpc: clean up numerous globals
Introduce xpc_arch_ops and eliminate numerous individual global definitions.
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Dean Nelson <dcn@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Robin Holt [Mon, 13 Apr 2009 21:40:19 +0000 (14:40 -0700)]
sgi-xpc: implement opencomplete messaging
sgi-xpc has a window of failure where an open message can be sent and a
subsequent data message can get lost. We have added a new message
(opencomplete) which closes that window.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Robin Holt [Mon, 13 Apr 2009 21:40:18 +0000 (14:40 -0700)]
sgi-xpc: prevent false heartbeat failures
The heartbeat timeout functionality in sgi-xpc is currently not trained to
the connection time. If a connection is made and the code is in the last
polling window prior to doing a timeout, the next polling window will see
the heartbeat as unchanged and initiate a no-heartbeat disconnect.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Robin Holt [Mon, 13 Apr 2009 21:40:17 +0000 (14:40 -0700)]
sgi-xpc: update SGI XP/XPC/XPNET maintainer
Dean has moved on to other work. His responsibilities for XP/XPC/XPNET
have been handed to me.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Shen Feng [Mon, 13 Apr 2009 21:40:16 +0000 (14:40 -0700)] 
doc: use correct debugfs mountpoint
Use the default mountpoint of debugfs in the pktcdvd ABI.
Signed-off-by: Shen Feng <shen@cn.fujitsu.com>
Cc: <balagi@justmail.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bharata B Rao [Mon, 13 Apr 2009 21:40:15 +0000 (14:40 -0700)] 
memcg: fix documentation
The description about various statistics from memory.stat is not accurate
and confusing at times.
Correct this along with a few other minor cleanups.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yang Hongyang [Mon, 13 Apr 2009 21:40:14 +0000 (14:40 -0700)] 
Replace all DMA_nBIT_MASK macro with DMA_BIT_MASK(n)
This is the second go through of the old DMA_nBIT_MASK macro,and there're not
so many of them left,so I put them into one patch.I hope this is the last round.
After this the definition of the old DMA_nBIT_MASK macro could be removed.
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Tony Lindgren <tony@atomide.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Greg KH <greg@kroah.com>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Mon, 13 Apr 2009 21:40:14 +0000 (14:40 -0700)] 
ext2: fix data corruption for racing writes
If two writers allocating blocks to file race with each other (e.g.
because writepages races with ordinary write or two writepages race with
each other), ext2_getblock() can be called on the same inode in parallel.
Before we are going to allocate new blocks, we have to recheck the block
chain we have obtained so far without holding truncate_mutex. Otherwise
we could overwrite the indirect block pointer set by the other writer
leading to data loss.
The below test program by Ying is able to reproduce the data loss with ext2
on in BRD in a few minutes if the machine is under memory pressure:
long kMemSize = 50 << 20;
int kPageSize = 4096;
int main(int argc, char **argv) {
int status;
int count = 0;
int i;
char *fname = "/mnt/test.mmap";
char *mem;
unlink(fname);
int fd = open(fname, O_CREAT | O_EXCL | O_RDWR, 0600);
status = ftruncate(fd, kMemSize);
mem = mmap(0, kMemSize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
// Fill the memory with 1s.
memset(mem, 1, kMemSize);
sleep(2);
for (i = 0; i < kMemSize; i++) {
int byte_good = mem[i] != 0;
if (!byte_good && ((i % kPageSize) == 0)) {
//printf("%d ", i / kPageSize);
count++;
}
}
munmap(mem, kMemSize);
close(fd);
unlink(fname);
if (count > 0) {
printf("Running %d bad page\n", count);
return 1;
}
return 0;
}
Cc: Ying Han <yinghan@google.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Mingming Cao <cmm@us.ibm.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Mon, 13 Apr 2009 21:40:12 +0000 (14:40 -0700)]
shmem: respect MAX_LFS_FILESIZE
SHMEM_MAX_BYTES was derived from the maximum size of its triple-indirect
swap vector, forgetting to take the MAX_LFS_FILESIZE limit into account.
Never mind 256kB pages, even 8kB pages on 32-bit kernels allowed files to
grow slightly bigger than that supposed maximum.
Fix this by using the min of both (at build time not run time). And it
happens that this calculation is good as far as 8MB pages on 32-bit or
16MB pages on 64-bit: though SHMSWP_MAX_INDEX gets truncated before that,
it's truncated to such large numbers that we don't need to care.
[akpm@linux-foundation.org: it needs pagemap.h]
[akpm@linux-foundation.org: fix sparc64 min() warnings]
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Yuri Tikhonov <yur@emcraft.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yuri Tikhonov [Mon, 13 Apr 2009 21:40:11 +0000 (14:40 -0700)] 
shmem: fix division by zero
Fix a division by zero which we have in shmem_truncate_range() and
shmem_unuse_inode() when using big PAGE_SIZE values (e.g. 256kB on
ppc44x).
With 256kB PAGE_SIZE, the ENTRIES_PER_PAGEPAGE constant becomes too large
(0x1.0000.0000) on a 32-bit kernel, so this patch just changes its type
from 'unsigned long' to 'unsigned long long'.
Hugh: reverted its unsigned long longs in shmem_truncate_range() and
shmem_getpage(): the pagecache index cannot be more than an unsigned long,
so the divisions by zero occurred in unreached code. It's a pity we need
any ULL arithmetic here, but I found no pretty way to avoid it.
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stefan Husemann [Mon, 13 Apr 2009 21:40:10 +0000 (14:40 -0700)] 
intelfb: support i854
Support the Intel 854 Chipset in fbdev.
We test and use the patch on a Thomson IP1101 IPTV-Box. On the VGA-Port
we get a normal signal.
Here is the link to the Mambux-Project: http://www.mambux.de
Cc: Keith Packard <keithp@keithp.com>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Stefan Husemann <shusemann@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Ellerman [Mon, 13 Apr 2009 21:40:09 +0000 (14:40 -0700)]
mm: add documentation describing what tsk->active_mm means vs tsk->mm
I'm sure everyone knows this, but I didn't, so I googled it, and found a
nice explanation from Linus. Might be worth sticking in Documentation.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KAMEZAWA Hiroyuki [Mon, 13 Apr 2009 21:40:08 +0000 (14:40 -0700)] 
memcg: remove warning when CONFIG_DEBUG_VM=n
mm/memcontrol.c:318: warning: `mem_cgroup_is_obsolete' defined but not used
[akpm@linux-foundation.org: simplify as suggested by Balbir]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andi Kleen [Mon, 13 Apr 2009 21:40:08 +0000 (14:40 -0700)] 
kernel/sys.c: clean up sys_shutdown exit path
Impact: cleanup, fix
Clean up sys_shutdown() exit path. Factor out common code. Return
correct error code instead of always 0 on failure.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Mon, 13 Apr 2009 21:40:07 +0000 (14:40 -0700)] 
at25: make input buffers of at25_*write() const
| drivers/misc/eeprom/at25.c:358: warning: assignment from incompatible pointer type
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Mon, 13 Apr 2009 21:40:06 +0000 (14:40 -0700)]
at24: make input buffers of at24_*write() const
| drivers/misc/eeprom/at24.c:508: warning: assignment from incompatible pointer type
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Mon, 13 Apr 2009 21:40:06 +0000 (14:40 -0700)]
jbd: update locking coments
Update information about locking in JBD revoke code.
Reported-by: Lin Tan <tammy000@gmail.com>.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andy Grover [Mon, 13 Apr 2009 21:40:05 +0000 (14:40 -0700)] 
mm: document get_user_pages_fast()
While better than get_user_pages(), the usage of gupf(), especially the
return values and the fact that it can potentially only partially pin the
range, warranted some documentation.
Signed-off-by: Andy Grover <andy.grover@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Robertson [Mon, 13 Apr 2009 21:40:04 +0000 (14:40 -0700)] 
initramfs: fix initramfs to work with hardlinked init
Change
cb6ff208076b5f434db1b8c983429269d719cef5 ("NOMMU: Support XIP on
initramfs") seems to have broken booting from initramfs with /sbin/init
being a hardlink.
It seems like the logic required for XIP on nommu, i.e. ftruncate to
reported cpio header file size (body_len) is broken for hardlinks, which
have a reported size of 0, and the truncate thus nukes the contents of the
file (in my case busybox), making boot impossible and ending with runaway
loop modprobe binfmt-0000 - and of course 0000 is not a valid binary
format.
My fix is to only call ftruncate if size is non-zero which fixes things
for me, but I'm not certain whether this will break XIP for those files on
nommu systems, although I would guess not.
Signed-off-by: Randy Robertson <rmrobert@vmware.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Mon, 13 Apr 2009 21:40:03 +0000 (14:40 -0700)] 
ptrace: fix exit_ptrace() vs ptrace_traceme() race
Pointed out by Roland. The bug was recently introduced by me in
"forget_original_parent: split out the un-ptrace part", commit
39c626ae47c469abdfd30c6e42eff884931380d6.
Since that patch we have a window after exit_ptrace() drops tasklist and
before forget_original_parent() takes it again. In this window the child
can do ptrace(PTRACE_TRACEME) and nobody can untrace this child after
that.
Change ptrace_traceme() to not attach to the exiting ->real_parent. We
don't report the error in this case, we pretend we attach right before
->real_parent calls exit_ptrace() which should untrace us anyway.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jean Delvare [Mon, 13 Apr 2009 21:40:02 +0000 (14:40 -0700)]
MAINTAINERS: bluesmoke-devel list is moderated for non-subscribers
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Mon, 13 Apr 2009 21:40:01 +0000 (14:40 -0700)]
mm: reformat the Unevictable-LRU documentation
Do a bit of reformatting on the Unevictable-LRU documentation.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Mon, 13 Apr 2009 21:40:01 +0000 (14:40 -0700)]
mm: point the UNEVICTABLE_LRU config option at the documentation
Point the UNEVICTABLE_LRU config option at the documentation describing
the option.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Huang Weiyi [Mon, 13 Apr 2009 21:40:00 +0000 (14:40 -0700)]
sysrq: remove duplicated #include
Remove duplicated #include in drivers/char/sysrq.c.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joe Perches [Mon, 13 Apr 2009 21:39:59 +0000 (14:39 -0700)] 
include/video/cyblafb.h: remove it, it's unused
commit
ddb53d48da5b0e691f35e703ac29118747f86c99 ("fbdev: remove cyblafb
driver") removed drivers/video/cyblafb.c, but not its .h file
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: "Jani Monoses" <jani@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrea Righi [Mon, 13 Apr 2009 21:39:58 +0000 (14:39 -0700)] 
res_counter: update documentation
After the introduction of resource counters hierarchies
(
28dbc4b6a01fb579a9441c7b81e3d3413dc452df) the prototypes of
res_counter_init() and res_counter_charge() have been changed.
Keep the documentation consistent with the actual function prototypes.
Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Cc: Paul Menage <menage@google.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Mon, 13 Apr 2009 21:39:57 +0000 (14:39 -0700)] 
spi: spi_write_then_read() bugfixes
The "simplify spi_write_then_read()" patch included two regressions from
the 2.6.27 behaviors:
- The data it wrote out during the (full duplex) read side
of the transfer was not zeroed.
- It fails completely on half duplex hardware, such as
Microwire and most "3-wire" SPI variants.
So, revert that patch. A revised version should be submitted at some
point, which can get the speedup on standard hardware (full duplex)
without breaking on less-capable half-duplex stuff.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: <stable@kernel.org> [2.6.28.x, 2.6.29.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andi Kleen [Mon, 13 Apr 2009 21:39:56 +0000 (14:39 -0700)]
asm-generic/siginfo.h: update NSIGTRAP definition
Impact: (nearly) trivial
The patch
commit
da654b74bda14c45a7d98c731bf3c1a43b6b74e2
Author: Srinivasa Ds <srinivasa@in.ibm.com>
Date: Tue Sep 23 15:23:52 2008 +0530
signals: demultiplexing SIGTRAP signal
forgot to update the NSIGTRAP define in asm-generic/siginfo.h to the new
number of sigtrap subcodes. Nothing in the tree seems to use it, but
presumably something in user space might. So update it.
Cc: Srinivasa Ds <srinivasa@in.ibm.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Mon, 13 Apr 2009 21:39:55 +0000 (14:39 -0700)] 
cirrusfb: do not allow unsupported pixel depth
Do not allow modes with unsupported pixel depth. Otherwise, one can hang
a computer by setting incorrect value with fbset command.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Mon, 13 Apr 2009 21:39:54 +0000 (14:39 -0700)] 
filemap: fix kernel-doc warnings
Fix filemap.c kernel-doc warnings:
Warning(mm/filemap.c:575): No description found for parameter 'page'
Warning(mm/filemap.c:575): No description found for parameter 'waiter'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Sandeen [Mon, 13 Apr 2009 21:39:54 +0000 (14:39 -0700)] 
include/linux/fiemap.h: include types.h now that it's exported
Include <linux/types.h> in fiemap.h. Sam Ravnborg pointed out that this
was missing in this newly-exported header which uses the __u32 and __u64
types.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Menzel [Mon, 13 Apr 2009 21:39:53 +0000 (14:39 -0700)] 
drivers/video/aty/radeon_base.c: fix typo in comment
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michal Januszewski [Mon, 13 Apr 2009 21:39:52 +0000 (14:39 -0700)] 
sisfb: fix color component length for pseudocolor modes
sisfb incorrectly sets the length of the color fields to 6 bits
for PSEUDOCOLOR modes, even though 8 bits are always used per pixel.
Fix this by setting the length to 8.
Signed-off-by: Michal Januszewski <spock@gentoo.org>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michal Januszewski [Mon, 13 Apr 2009 21:39:51 +0000 (14:39 -0700)]
sa1100fb: fix color component length for pseudocolor modes
sa1100fb incorrectly sets the length of the color fields to 8 bits for
PSEUDOCOLOR modes for which only 4 bits are used per pixel. Fix this by
setting the length to 4 bits for these modes.
Signed-off-by: Michal Januszewski <spock@gentoo.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
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>
Michal Januszewski [Mon, 13 Apr 2009 21:39:49 +0000 (14:39 -0700)]
s3fb: fix color component length for pseudocolor modes
s3fb incorrectly sets the length of the color fields to 6 bits for
PSEUDOCOLOR modes, even though 8 or 4 bits are used per pixel. Fix this
by setting the length to 8 or 4, respectively.
Signed-off-by: Michal Januszewski <spock@gentoo.org>
Acked-by: Ondrej Zajicek <santiago@crfreenet.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Mon, 13 Apr 2009 21:39:48 +0000 (14:39 -0700)] 
namespaces: move get_mq() inside #ifdef CONFIG_SYSCTL
| ipc/mq_sysctl.c:26: warning: 'get_mq' defined but not used
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexey Dobriyan [Mon, 13 Apr 2009 21:39:47 +0000 (14:39 -0700)] 
aio: remove INIT_KIOCTX
Unused after
20dcae32439384b6863c626bb3b2a09bed65b33e aka
"[PATCH] aio: remove kioctx from mm_struct".
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Anderson [Mon, 13 Apr 2009 21:39:46 +0000 (14:39 -0700)] 
hfs: fix memory leak when unmounting
When an HFS filesystem is unmounted, it leaks a 2-page bitmap. Also,
under extreme memory pressure, it's possible that hfs_releasepage() may
use a tree pointer that has not been initialized, and if so, the release
request should just be rejected.
[akpm@linux-foundation.org: free_pages(0) is legal, remove obvious comment]
Signed-off-by: Dave Anderson <anderson@redhat.com>
Tested-by: Eugene Teo <eugeneteo@kernel.sg>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jonathan Cameron [Mon, 13 Apr 2009 21:39:45 +0000 (14:39 -0700)] 
hwmon: sht15 humidity sensor driver
Data sheet at:
http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf
These sensors communicate over a 2 wire bus running a device specific
protocol. The complexity of the driver is mainly due to handling the
substantial delays between requesting a reading and the device pulling the
data line low to indicate that the data is available. This is handled by
an interrupt that is disabled under all other conditions.
I wasn't terribly clear on the best way to handle this, so comments on
that aspect would be particularly welcome!
Interpretation of the temperature depends on knowing the supply voltage.
If configured in a board config as a regulator consumer this is obtained
from the regulator subsystem. If not it should be provided in the
platform data.
I've placed this driver in the hwmon subsystem as it is definitely a
device that may be used for hardware monitoring and with it's relatively
slow response times (up to 120 millisecs to get a reading) a caching
strategy certainly seems to make sense!
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Matthew Garrett [Mon, 13 Apr 2009 21:39:44 +0000 (14:39 -0700)] 
efifb: exit if framebuffer address is invalid
efifb will attempt to ioremap a framebuffer even if its starting address
is 0, failing and causing an ugly backtrace in the process. Exit before
probing if this is the case.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Peter Jones <pjones@redhat.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michal Januszewski [Mon, 13 Apr 2009 21:39:43 +0000 (14:39 -0700)]
uvesafb: fix color component length for pseudocolor modes
uvesafb incorrectly sets the length of the color fields to 6 bits for
PSEUDOCOLOR modes, even though 8 bits are always used per pixel. Fix this
by setting the length to 8.
The switch of the DAC width from the default 6 bits to 8 bits is retained
and tracked internally in the driver, but never exposed to userspace.
Signed-off-by: Michal Januszewski <spock@gentoo.org>
Acked-by: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: <syrjala@sci.fi>
Cc: Geert Uytterhoeven <geert.uytterhoeven@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
projects / linux-2.6 / log
