Herbert Xu [Thu, 9 Apr 2009 02:35:47 +0000 (10:35 +0800)]
module: try_then_request_module must wait
Since the whole point of try_then_request_module is to retry
the operation after a module has been loaded, we must wait for
the module to fully load.
Otherwise all sort of things start breaking, e.g., you won't
be able to read your encrypted disks on the first attempt.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Tested-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 9 Apr 2009 01:00:55 +0000 (18:00 -0700)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
work_on_cpu(): rewrite it to create a kernel thread on demand
kthread: move sched-realeted initialization from kthreadd context
kthread: Don't looking for a task in create_kthread() #2
Linus Torvalds [Thu, 9 Apr 2009 00:45:02 +0000 (17:45 -0700)]
Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
pda_power: Add optional OTG transceiver and voltage regulator support
pcf50633_charger: Remove unused mbc_set_status function
pcf50633_charger: Enable periodic charging restart
Linus Torvalds [Thu, 9 Apr 2009 00:44:28 +0000 (17:44 -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:
cap_prctl: don't set error to 0 at 'no_change'
Linus Torvalds [Thu, 9 Apr 2009 00:43:58 +0000 (17:43 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
igb: remove sysfs entry that was used to set the number of vfs
igbvf: add new driver to support 82576 virtual functions
drivers/net/eql.c: Fix a dev leakage.
niu: Fix unused variable warning.
r6040: set MODULE_VERSION
bnx2: Don't use reserved names
FEC driver: add missing #endif
niu: Fix error handling
mv643xx_eth: don't reset the rx coal timer on interface up
smsc911x: correct debugging message on mii read timeout
ethoc: fix library build errors
netfilter: ctnetlink: fix regression in expectation handling
netfilter: fix selection of "LED" target in netfilter
netfilter: ip6tables regression fix
Linus Torvalds [Thu, 9 Apr 2009 00:43:39 +0000 (17:43 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: Hook up sys_preadv and sys_pwritev
sparc64: add_node_ranges() must be __init
serial: sunsu: sunsu_kbd_ms_init needs to be __devinit
sparc: Fix section mismatch warnings in cs4231 sound driver.
sparc64: Fix section mismatch warnings in PCI controller drivers.
sparc64: Fix section mismatch warnings in power driver.
sparc64: get_cells() can't be marked __init
Linus Torvalds [Thu, 9 Apr 2009 00:42:32 +0000 (17:42 -0700)]
Merge branch 'ext3-latency-fixes' of git://git./linux/kernel/git/tytso/ext4
* 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext3: Try to avoid starting a transaction in writepage for data=writepage
block_write_full_page: switch synchronous writes to use WRITE_SYNC_PLUG
Andrew Morton [Thu, 9 Apr 2009 15:50:37 +0000 (09:50 -0600)]
work_on_cpu(): rewrite it to create a kernel thread on demand
Impact: circular locking bugfix
The various implemetnations and proposed implemetnations of work_on_cpu()
are vulnerable to various deadlocks because they all used queues of some
form.
Unrelated pieces of kernel code thus gained dependencies wherein if one
work_on_cpu() caller holds a lock which some other work_on_cpu() callback
also takes, the kernel could rarely deadlock.
Fix this by creating a short-lived kernel thread for each work_on_cpu()
invokation.
This is not terribly fast, but the only current caller of work_on_cpu() is
pci_call_probe().
It would be nice to find some other way of doing the node-local
allocations in the PCI probe code so that we can zap work_on_cpu()
altogether. The code there is rather nasty. I can't think of anything
simple at this time...
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Oleg Nesterov [Thu, 9 Apr 2009 15:50:36 +0000 (09:50 -0600)]
kthread: move sched-realeted initialization from kthreadd context
kthreadd is the single thread which implements ths "create" request, move
sched_setscheduler/etc from create_kthread() to kthread_create() to
improve the scalability.
We should be careful with sched_setscheduler(), use _nochek helper.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Vitaliy Gusev <vgusev@openvz.org
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Vitaliy Gusev [Thu, 9 Apr 2009 15:50:35 +0000 (09:50 -0600)]
kthread: Don't looking for a task in create_kthread() #2
Remove the unnecessary find_task_by_pid_ns(). kthread() can just
use "current" to get the same result.
Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Serge E. Hallyn [Wed, 8 Apr 2009 21:55:58 +0000 (16:55 -0500)]
cap_prctl: don't set error to 0 at 'no_change'
One-liner: capsh --print is broken without this patch.
In certain cases, cap_prctl returns error > 0 for success. However,
the 'no_change' label was always setting error to 0. As a result,
for example, 'prctl(CAP_BSET_READ, N)' would always return 0.
It should return 1 if a process has N in its bounding set (as
by default it does).
I'm keeping the no_change label even though it's now functionally
the same as 'error'.
Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Alexander Duyck [Tue, 7 Apr 2009 14:37:52 +0000 (14:37 +0000)]
igb: remove sysfs entry that was used to set the number of vfs
This patch removes the sysfs entry num_vfs which was added to support
enabling pci virtual functions for 82576.
To prevent VFs from loading automatically a module parameter "max_vfs" was
added so that the number of VFs per PF can be limited. This is especially
useful when 4 or more 82576 ports are on the system because otherwise to
load all VFs would result in 8 interface per physical port.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Tue, 7 Apr 2009 14:37:34 +0000 (14:37 +0000)]
igbvf: add new driver to support 82576 virtual functions
This adds an igbvf driver to handle virtual functions provided by the
igb driver when SR-IOV has been enabled. A virtual function is a
lightweight pci-e function that supports a single queue and shares
resources with the 82576 physical function contained within the igb
driver.
To spawn virtual functions from the igb driver all that is needed is to
enable CONFIG_PCI_IOV and have an 82576 Ethernet adapter on a system that
supports SR-IOV in the BIOS. The virtual functions will appear after the
interface is loaded.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yang Hongyang [Wed, 8 Apr 2009 22:56:33 +0000 (15:56 -0700)]
drivers/net/eql.c: Fix a dev leakage.
After dev_get_by_name(), we should follow a dev_put().
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 8 Apr 2009 22:52:16 +0000 (15:52 -0700)]
niu: Fix unused variable warning.
Don't strain gcc's tiny mind.
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Wed, 8 Apr 2009 22:50:43 +0000 (15:50 -0700)]
r6040: set MODULE_VERSION
This patch sets MODULE_VERSION in order to help users track
changes to this module.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bastian Blank [Wed, 8 Apr 2009 22:50:07 +0000 (15:50 -0700)]
bnx2: Don't use reserved names
The mips identifier is reserved by gcc on mips plattforms. Don't use it
in the code.
Signed-off-by: Bastian Blank <waldi@debian.org>
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sascha Hauer [Wed, 8 Apr 2009 22:44:45 +0000 (15:44 -0700)]
FEC driver: add missing #endif
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Wed, 8 Apr 2009 22:44:04 +0000 (15:44 -0700)]
niu: Fix error handling
platform_device_register_simple() returns ERR_PTR(), not NULL, if an error
occurs.
Found by smatch (http://repo.or.cz/w/smatch.git). Compile tested.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lennert Buytenhek [Wed, 8 Apr 2009 22:42:46 +0000 (15:42 -0700)]
mv643xx_eth: don't reset the rx coal timer on interface up
Move SDMA configuration from interface up to port probe, to prevent
overwriting the receive coalescing timer value on interface up.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Wed, 8 Apr 2009 22:42:15 +0000 (15:42 -0700)]
smsc911x: correct debugging message on mii read timeout
the warning printed when a mii READ times out currently says "Timed out
waiting for MII write to finish". This patch corrects this.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Randy Dunlap [Wed, 8 Apr 2009 22:41:25 +0000 (15:41 -0700)]
ethoc: fix library build errors
ethoc indirectly uses crc32_le() and bitrev32(), so select
those library functions to be built.
drivers/built-in.o: In function `ethoc_set_multicast_list':
ethoc.c:(.text+0x6226f): undefined reference to `crc32_le'
ethoc.c:(.text+0x62276): undefined reference to `bitrev32'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 8 Apr 2009 22:36:42 +0000 (15:36 -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] wire up preadv/pwritev system calls
Linus Torvalds [Wed, 8 Apr 2009 22:32:06 +0000 (15:32 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
x86 ACPI: Add support for Always Running APIC timer
ACPI x86: Make aperf/mperf MSR access in acpi_cpufreq read_only
ACPI x86: Cleanup acpi_cpufreq structures related to aperf/mperf
ACPICA: delete check for AML access to port 0x81-83
ACPI: WMI: use .notify method instead of installing handler directly
sony-laptop: use .notify method instead of installing handler directly
panasonic-laptop: use .notify method instead of installing handler directly
fujitsu-laptop: use .notify method instead of installing hotkey handler directly
fujitsu-laptop: use .notify method instead of installing handler directly
ACPI: video: use .notify method instead of installing handler directly
ACPI: thermal: use .notify method instead of installing handler directly
ACPI battery: fix async boot oops
ACPI: delete acpi_device.g_list
NULL noise: drivers/platform/x86/panasonic-laptop.c
ACPI: cpufreq: remove dupilcated #include
ACPI: Adjust Kelvin offset to match local implementation
ACPI: convert acpi_device_lock spinlock to mutex
Linus Torvalds [Wed, 8 Apr 2009 22:24:09 +0000 (15:24 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array
[ARM] 5445/1: AT91: Remove flexible array from USBH platform data
[ARM] 5447/1: Add SZ_32K
[ARM] omap: fix omap1 clock usecount decrement bug
[ARM] pxa: register AC97 controller devices
[ARM] pxa/csb701: do not register devices on non-csb726 boads
[ARM] pxa/colibri: get rid of set_irq_type()
[ARM] pxa/colibri: provide MAC address from ATAG_SERIAL
[ARM] pxa/cm-x2xx: fix ucb1400 not being registered
[ARM] pxa: Add support for suspend on PalmTX, T5 and LD
[ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight
[ARM] pxa: Palm Tungsten E2 basic support
[ARM] pxa/em-x270: add libertas device registration
[ARM] pxa/magician: Enable bq24022 regulator for gpio_vbus and pda_power
Linus Torvalds [Wed, 8 Apr 2009 21:33:59 +0000 (14:33 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
mmc_spi: support for non-byte-aligned cards
omap_hsmmc: Do not expect cmd/data to be non-null when CC/TC occurs
mmc: Fix compile for omap_hsmmc.c
mmc_spi: convert timeout handling to jiffies and avoid busy waiting
mmc_spi: do not check CID and CSD blocks with CRC16
omap_hsmmc: Flush posted write to IRQ
New mail address for Pierre Ossman
imxmmc: move RSSR BLR
imxmmc: init-exit rework
mmc: Accept EXT_CSD rev 1.3 since it is backwards compatible with 1.2
Alan Cox [Wed, 8 Apr 2009 19:13:16 +0000 (20:13 +0100)]
tty: MAX3100
Thou shalt remember to use 'git add' or errors shall be visited on your
downloads and there shall be wrath from on list and much gnashing of teeth.
Thou shalt remember to use git status or there shall be catcalls and much
embarrasment shall come to pass.
Signed-off-by: Alan "I'm hiding" Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tony Luck [Wed, 8 Apr 2009 20:46:14 +0000 (13:46 -0700)]
[IA64] wire up preadv/pwritev system calls
Gerd Hoffmann added these to Linux. Let ia64 use them.
Signed-off-by: Tony Luck <tony.luck@intel.com>
David S. Miller [Wed, 8 Apr 2009 20:39:54 +0000 (13:39 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/kaber/nf-2.6
Justin Waters [Fri, 3 Apr 2009 20:06:53 +0000 (21:06 +0100)]
[ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array
Currently, the vbus_pin assignment loop is limited by the value of the "ports"
variable in the platform data. Now that the vbus_pin array is no longer
flexible, we can use its actual size.
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Justin Waters [Fri, 3 Apr 2009 20:03:59 +0000 (21:03 +0100)]
[ARM] 5445/1: AT91: Remove flexible array from USBH platform data
The flexible array in the USBH platform data is not safe to copy. The
compiler will not allocate any extra memory for the non-init platform
data structure (in the *_devices.c files) since it isn't given any
defaults at compile time. When the probe function attempts to address
that array, it will actually attempt to access data in an adjacent
structure.
Since there are currently no (known) implementations of the at91 USBH
IP with more than 2 vbus pins, I am capping the value at 2. If somebody
tries to assign more, then the compiler will produce a warning.
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Walleij [Wed, 8 Apr 2009 00:32:20 +0000 (01:32 +0100)]
[ARM] 5447/1: Add SZ_32K
This adds a SZ_32K define to the available sizes. I need it for an
upcoming platform support.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Wolfgang Muees [Wed, 8 Apr 2009 08:48:58 +0000 (09:48 +0100)]
mmc_spi: support for non-byte-aligned cards
A very large subset of SD cards in the market send their
responses and data non-byte-aligned. So add logic to the
mmc spi driver to handle this mess.
Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Jarkko Lavinen [Wed, 8 Apr 2009 08:18:32 +0000 (11:18 +0300)]
omap_hsmmc: Do not expect cmd/data to be non-null when CC/TC occurs
With spurious interrupt cmd can be null even when we have CC
set in irq status.
Fixes: NB#106295 - prevent potential kernel crash in the MMC driver
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Tony Lindgren [Wed, 8 Apr 2009 00:04:33 +0000 (17:04 -0700)]
mmc: Fix compile for omap_hsmmc.c
This fixes the issue noted by Russell King:
drivers/mmc/host/omap_hsmmc.c: In function 'mmc_omap_xfer_done':
drivers/mmc/host/omap_hsmmc.c:301: error: implicit declaration of function 'mmc_omap_fclk_lazy_disable'
This got broken by
4a694dc915c9a223044ce21fc0d99e63facd1d64.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Wolfgang Muees [Tue, 7 Apr 2009 14:26:30 +0000 (15:26 +0100)]
mmc_spi: convert timeout handling to jiffies and avoid busy waiting
SD/MMC card timeouts can be very high. So avoid busy-waiting,
using the scheduler. Calculate all timeouts in jiffies units,
because this will give us the correct sign when to involve
the scheduler.
Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Wolfgang Muees [Tue, 7 Apr 2009 13:48:16 +0000 (14:48 +0100)]
mmc_spi: do not check CID and CSD blocks with CRC16
Some cards are not able to calculate a valid CRC16 value
for CID and CSD reads (CRC for 512 byte data blocks is OK).
By moving the CRC enable after the read of CID and CSD, these
cards can be used. This patch was tested with a faulty 8 GByte
takeMS Class 6 SDHC card. This patch was suggested by
Pierre Ossman.
Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Kevin Hilman [Mon, 6 Apr 2009 12:01:19 +0000 (15:01 +0300)]
omap_hsmmc: Flush posted write to IRQ
Spurious IRQs seen on MMC after 2.6.29. Flush posted write in IRQ
handler.
The interrupt line is released by clearing the error status bits
in the MMCHS_STAT register, which must occur before the interrupt
handler returns to avoid unwanted irqs. Hence the need to flush
the posted write.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Tony Lindgen <tony@atomide.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Pierre Ossman [Wed, 8 Apr 2009 18:14:54 +0000 (20:14 +0200)]
New mail address for Pierre Ossman
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Paulius Zaleckas [Wed, 25 Mar 2009 09:18:50 +0000 (11:18 +0200)]
imxmmc: move RSSR BLR
DMA request source (RSSR) needs to be set only once (in probe).
DMA burst length (BLR) need to be set only in set_ios()
This cleans up imxmci_setup_data() and should make it a little
bit faster :)
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Paulius Zaleckas [Wed, 25 Mar 2009 09:17:42 +0000 (11:17 +0200)]
imxmmc: init-exit rework
Add __init __exit for appropriate probe and remove functions.
Conver to platform_driver_probe()
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Jarkko Lavinen [Thu, 27 Nov 2008 12:30:32 +0000 (14:30 +0200)]
mmc: Accept EXT_CSD rev 1.3 since it is backwards compatible with 1.2
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Roland McGrath [Wed, 8 Apr 2009 06:21:06 +0000 (23:21 -0700)]
ptrace: some checkpatch fixes
This fixes all the checkpatch --file complaints about kernel/ptrace.c
and also removes an unused #include. I've verified that there are no
changes to the compiled code on x86_64.
Signed-off-by: Roland McGrath <roland@redhat.com>
[ Removed the parts that just split a line - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nobuhiro Iwamatsu [Wed, 8 Apr 2009 04:21:43 +0000 (21:21 -0700)]
nommu: fix typo vma->pg_off to vma->vm_pgoff
6260a4b0521a41189b2c2a8119096c1e21dbdf2c ("/proc/pid/maps: don't show
pgoff of pure ANON VMAs" had a typo.
fs/proc/task_nommu.c:138: error: 'struct vm_area_struct' has no member named 'pg_off'
distcc[21484] ERROR: compile fs/proc/task_nommu.c on sprygo/32 failed
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Cc: 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>
Alexander Beregalov [Wed, 8 Apr 2009 04:21:42 +0000 (21:21 -0700)]
befs: fix build on parisc
fs/befs/super.c:85: error: 'PAGE_SIZE' undeclared
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Tue, 7 Apr 2009 22:25:01 +0000 (18:25 -0400)]
ext3: Try to avoid starting a transaction in writepage for data=writepage
This does the same as commit
9e80d407736161d9b8b0c5a0d44f786e44c322ea
(avoid starting a transaction when no block allocation is needed)
but for data=writeback mode of ext3. We also cleanup the data=ordered
case a bit to stick to coding style...
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Theodore Ts'o [Tue, 7 Apr 2009 22:12:43 +0000 (18:12 -0400)]
block_write_full_page: switch synchronous writes to use WRITE_SYNC_PLUG
Now that we have a distinction between WRITE_SYNC and WRITE_SYNC_PLUG,
use WRITE_SYNC_PLUG in __block_write_full_page() to avoid unplugging
the block device I/O queue between each page that gets flushed out.
Otherwise, when we run sync() or fsync() and we need to write out a
large number of pages, the block device queue will get unplugged
between for every page that is flushed out, which will be a pretty
serious performance regression caused by commit
a64c8610.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
David S. Miller [Wed, 8 Apr 2009 10:55:30 +0000 (03:55 -0700)]
sparc: Hook up sys_preadv and sys_pwritev
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 7 Apr 2009 08:05:22 +0000 (01:05 -0700)]
sparc64: add_node_ranges() must be __init
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 7 Apr 2009 08:08:09 +0000 (01:08 -0700)]
serial: sunsu: sunsu_kbd_ms_init needs to be __devinit
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 7 Apr 2009 07:45:51 +0000 (00:45 -0700)]
sparc: Fix section mismatch warnings in cs4231 sound driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 7 Apr 2009 08:03:58 +0000 (01:03 -0700)]
sparc64: Fix section mismatch warnings in PCI controller drivers.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 7 Apr 2009 07:47:44 +0000 (00:47 -0700)]
sparc64: Fix section mismatch warnings in power driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 7 Apr 2009 07:54:27 +0000 (00:54 -0700)]
sparc64: get_cells() can't be marked __init
Signed-off-by: David S. Miller <davem@davemloft.net>
Len Brown [Tue, 7 Apr 2009 22:18:42 +0000 (18:18 -0400)]
Merge branches 'release', 'APERF', 'ARAT', 'misc', 'kelvin', 'device-lock' and 'bjorn.notify' into release
Venkatesh Pallipadi [Tue, 7 Apr 2009 01:51:29 +0000 (18:51 -0700)]
x86 ACPI: Add support for Always Running APIC timer
Add support for Always Running APIC timer, CPUID_0x6_EAX_Bit2.
This bit means the APIC timer continues to run even when CPU is
in deep C-states.
The advantage is that we can use LAPIC timer on these CPUs
always, and there is no need for "slow to read and program"
external timers (HPET/PIT) and the timer broadcast logic
and related code in C-state entry and exit.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Venkatesh Pallipadi [Mon, 6 Apr 2009 18:26:08 +0000 (11:26 -0700)]
ACPI x86: Make aperf/mperf MSR access in acpi_cpufreq read_only
Do not write zeroes to APERF and MPERF by ondemand governor. With this
change, other users can share these MSRs for reads.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Venkatesh Pallipadi [Mon, 6 Apr 2009 18:26:07 +0000 (11:26 -0700)]
ACPI x86: Cleanup acpi_cpufreq structures related to aperf/mperf
Change structure name to make the code cleaner and simpler. No
functionality change in this patch.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Tue, 7 Apr 2009 21:33:58 +0000 (17:33 -0400)]
ACPICA: delete check for AML access to port 0x81-83
Sony laptops apparently write 4-bytes (rather than 1 byte)
to debug port 0x80, which spews error messages:
Denied AML access to port 0x00000080/4 (DMA1 0x0081-0x0083) [
20090320]
http://bugzilla.kernel.org/show_bug.cgi?id=13036
Signed-off-by: Len Brown <len.brown@intel.com>
Linus Torvalds [Tue, 7 Apr 2009 21:25:01 +0000 (14:25 -0700)]
Linux 2.6.30-rc1
Linus Torvalds [Tue, 7 Apr 2009 21:11:07 +0000 (14:11 -0700)]
Merge branch 'core/softlockup' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core/softlockup' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
softlockup: make DETECT_HUNG_TASK default depend on DETECT_SOFTLOCKUP
softlockup: move 'one' to the softlockup section in sysctl.c
softlockup: ensure the task has been switched out once
softlockup: remove timestamp checking from hung_task
softlockup: convert read_lock in hung_task to rcu_read_lock
softlockup: check all tasks in hung_task
softlockup: remove unused definition for spawn_softlockup_task
softlockup: fix potential race in hung_task when resetting timeout
softlockup: fix to allow compiling with !DETECT_HUNG_TASK
softlockup: decouple hung tasks check from softlockup detection
Linus Torvalds [Tue, 7 Apr 2009 21:10:10 +0000 (14:10 -0700)]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
branch tracer, intel-iommu: fix build with CONFIG_BRANCH_TRACER=y
branch tracer: Fix for enabling branch profiling makes sparse unusable
ftrace: Correct a text align for event format output
Update /debug/tracing/README
tracing/ftrace: alloc the started cpumask for the trace file
tracing, x86: remove duplicated #include
ftrace: Add check of sched_stopped for probe_sched_wakeup
function-graph: add proper initialization for init task
tracing/ftrace: fix missing include string.h
tracing: fix incorrect return type of ns2usecs()
tracing: remove CALLER_ADDR2 from wakeup tracer
blktrace: fix pdu_len when tracing packet command requests
blktrace: small cleanup in blk_msg_write()
blktrace: NUL-terminate user space messages
tracing: move scripts/trace/power.pl to scripts/tracing/power.pl
Linus Torvalds [Tue, 7 Apr 2009 21:07:52 +0000 (14:07 -0700)]
Merge branch 'irq/threaded' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'irq/threaded' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
genirq: fix devres.o build for GENERIC_HARDIRQS=n
genirq: provide old request_irq() for CONFIG_GENERIC_HARDIRQ=n
genirq: threaded irq handlers review fixups
genirq: add support for threaded interrupts to devres
genirq: add threaded interrupt handler support
Trond Myklebust [Tue, 7 Apr 2009 21:02:53 +0000 (14:02 -0700)]
NFS: Fix the return value in nfs_page_mkwrite()
Commit
c2ec175c39f62949438354f603f4aa170846aabb ("mm: page_mkwrite
change prototype to match fault") exposed a bug in the NFS
implementation of page_mkwrite. We should be returning 0 on success...
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bjorn Helgaas [Tue, 7 Apr 2009 15:37:37 +0000 (15:37 +0000)]
ACPI: WMI: use .notify method instead of installing handler directly
This patch adds a .notify() method. The presence of .notify() causes
Linux/ACPI to manage event handlers and notify handlers on our behalf,
so we don't have to install and remove them ourselves.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
CC: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
Bjorn Helgaas [Tue, 7 Apr 2009 15:37:32 +0000 (15:37 +0000)]
sony-laptop: use .notify method instead of installing handler directly
This patch adds a .notify() method. The presence of .notify() causes
Linux/ACPI to manage event handlers and notify handlers on our behalf,
so we don't have to install and remove them ourselves.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
Bjorn Helgaas [Tue, 7 Apr 2009 15:37:27 +0000 (15:37 +0000)]
panasonic-laptop: use .notify method instead of installing handler directly
This patch adds a .notify() method. The presence of .notify() causes
Linux/ACPI to manage event handlers and notify handlers on our behalf,
so we don't have to install and remove them ourselves.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
CC: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Bjorn Helgaas [Tue, 7 Apr 2009 15:37:22 +0000 (15:37 +0000)]
fujitsu-laptop: use .notify method instead of installing hotkey handler directly
This patch adds a .notify() method. The presence of .notify() causes
Linux/ACPI to manage event handlers and notify handlers on our behalf,
so we don't have to install and remove them ourselves.
Tested by Tony on Fujitsu-Siemens Lifebook S6420 [FJNB1E6] with
BIOS 1.18 (01/09/2009). Tested by Jonathan on Fujitsu S7020.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Tony Vroon <tony@linx.net>
Tested-By: Tony Vroon <tony@linx.net>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Tested-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>
Bjorn Helgaas [Tue, 7 Apr 2009 15:37:16 +0000 (15:37 +0000)]
fujitsu-laptop: use .notify method instead of installing handler directly
This patch adds a .notify() method. The presence of .notify() causes
Linux/ACPI to manage event handlers and notify handlers on our behalf,
so we don't have to install and remove them ourselves.
Tested by Tony on Fujitsu-Siemens Lifebook S6420 [FJNB1E6] with
BIOS 1.18 (01/09/2009). Tested by Jonathan on Fujitsu S7020.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Tony Vroon <tony@linx.net>
Tested-By: Tony Vroon <tony@linx.net>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Tested-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>
Bjorn Helgaas [Tue, 7 Apr 2009 15:37:11 +0000 (15:37 +0000)]
ACPI: video: use .notify method instead of installing handler directly
This patch adds a .notify() method. The presence of .notify() causes
Linux/ACPI to manage event handlers and notify handlers on our behalf,
so we don't have to install and remove them ourselves.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
CC: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Bjorn Helgaas [Tue, 7 Apr 2009 15:37:06 +0000 (15:37 +0000)]
ACPI: thermal: use .notify method instead of installing handler directly
This patch adds a .notify() method. The presence of .notify() causes
Linux/ACPI to manage event handlers and notify handlers on our behalf,
so we don't have to install and remove them ourselves.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
CC: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Vegard Nossum [Tue, 7 Apr 2009 08:55:38 +0000 (10:55 +0200)]
ACPI battery: fix async boot oops
> BUG: unable to handle kernel NULL pointer dereference at (null)
What happens is that the battery module's init sections are being freed
before the async callback (which was marked __init) has run. This theory
is supported by the fact that the bad RIP value is a vmalloc address.
The immediate fix is to make this a non-init call.
(A better long-term fix is of course to wait with init-section unloading
until a module's async initcalls have been run, which would allow us to
discard this function which is still only run once, after all. Perhaps a
new async_initcall() function for the async/module API, if this is needed
for other modules in the future?)
Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com>
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Tested-by: Alessandro Suardi <alessandro.suardi@gmail.com>
Tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
Linus Torvalds [Tue, 7 Apr 2009 18:24:19 +0000 (11:24 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: pci_slot: grab refcount on slot's bus
PCI Hotplug: acpiphp: grab refcount on p2p subordinate bus
PCI: allow PCI core hotplug to remove PCI root bus
PCI: Fix oops in pci_vpd_truncate
PCI: don't corrupt enable_cnt when doing manual resource alignment
PCI: annotate pci_rescan_bus as __ref, not __devinit
PCI-IOV: fix missing kernel-doc
PCI: Setup disabled bridges even if buses are added
PCI: SR-IOV quirk for Intel 82576 NIC
Linus Torvalds [Tue, 7 Apr 2009 18:06:41 +0000 (11:06 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
loop: mutex already unlocked in loop_clr_fd()
cfq-iosched: don't let idling interfere with plugging
block: remove unused REQ_UNPLUG
cfq-iosched: kill two unused cfqq flags
cfq-iosched: change dispatch logic to deal with single requests at the time
mflash: initial support
cciss: change to discover first memory BAR
cciss: kernel scan thread for MSA2012
cciss: fix residual count for block pc requests
block: fix inconsistency in I/O stat accounting code
block: elevator quiescing helpers
Linus Torvalds [Tue, 7 Apr 2009 14:59:41 +0000 (07:59 -0700)]
Fix build errors due to CONFIG_BRANCH_TRACER=y
The code that enables branch tracing for all (non-constant) branches
plays games with the preprocessor and #define's the C 'if ()' construct
to do tracing.
That's all fine, but it fails for some unusual but valid C code that is
sometimes used in macros, notably by the intel-iommu code:
if (i=drhd->iommu, drhd->ignored) ..
because now the preprocessor complains about multiple arguments to the
'if' macro.
So make the macro expansion of this particularly horrid trick use
varargs, and handle the case of comma-expressions in if-statements. Use
another macro to do it cleanly in just one place.
This replaces a patch by David (and acked by Steven) that did this all
inside that one already-too-horrid macro.
Tested-by: Ingo Molnar <mingo@elte.hu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 7 Apr 2009 15:54:43 +0000 (08:54 -0700)]
Merge branch 'for-2.6.30' of git://git./linux/kernel/git/broonie/sound-2.6
* 'for-2.6.30' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6:
ASoC: TWL4030: Compillation error fix
Linus Torvalds [Tue, 7 Apr 2009 15:53:38 +0000 (08:53 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (36 commits)
ALSA: hda - Add VREF powerdown sequence for another board
ALSA: oss - volume control for CSWITCH and CROUTE
ALSA: hda - add missing comma in ad1884_slave_vols
sound: usb-audio: allow period sizes less than 1 ms
sound: usb-audio: save data packet interval in audioformat structure
sound: usb-audio: remove check_hw_params_convention()
sound: usb-audio: show sample format width in proc file
ASoC: fsl_dma: Pass the proper device for dma mapping routines
ASoC: Fix null dereference in ak4535_remove()
ALSA: hda - enable SPDIF output for Intel DX58SO board
ALSA: snd-atmel-abdac: increase periods_min to 6 instead of 4
ALSA: snd-atmel-abdac: replace bus_id with dev_name()
ALSA: snd-atmel-ac97c: replace bus_id with dev_name()
ALSA: snd-atmel-ac97c: cleanup registers when removing driver
ALSA: snd-atmel-ac97c: do a proper reset of the external codec
ALSA: snd-atmel-ac97c: enable interrupts to catch events for error reporting
ALSA: snd-atmel-ac97c: set correct size for buffer hardware parameter
ALSA: snd-atmel-ac97c: do not overwrite OCA and ICA when assigning channels
ALSA: snd-atmel-ac97c: remove dead break statements after return in switch case
ALSA: snd-atmel-ac97c: cleanup register definitions
...
Linus Torvalds [Tue, 7 Apr 2009 15:53:02 +0000 (08:53 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
sata_mv: shorten register names
sata_mv: workaround errata SATA#13
sata_mv: cosmetic renames
sata_mv: workaround errata SATA#26
sata_mv: workaround errata PCI#7
sata_mv: replace 0x1f with ATA_PIO4 (v2)
sata_mv: fix irq mask races
sata_mv: revert SoC irq breakage
libata: ahci enclosure management bios workaround
ata: Add TRIM infrastructure
ata_piix: VGN-BX297XP wants the controller power up on suspend
libata: Remove some redundant casts from pata_octeon_cf.c
pata_artop: typo
Linus Torvalds [Tue, 7 Apr 2009 15:45:12 +0000 (08:45 -0700)]
Merge branch 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linux
* 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linux:
i2c: imx: Make disable_delay a per-device variable
i2c: xtensa s6000 i2c driver
powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates board
i2c: i2c-mpc: make I2C bus speed configurable
i2c: i2c-mpc: use dev based printout function
i2c: i2c-mpc: various coding style fixes
i2c: imx: Add missing request_mem_region in probe()
i2c: i2c-s3c2410: Initialise Samsung I2C controller early
i2c-s3c2410: Simplify bus frequency calculation
i2c-s3c2410: sda_delay should be in ns, not clock ticks
i2c: iMX/MXC support
Linus Torvalds [Tue, 7 Apr 2009 15:44:43 +0000 (08:44 -0700)]
Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
hwmon: Add Asus ATK0110 support
hwmon: (lm95241) Convert to new-style i2c driver
Alan Cox [Tue, 7 Apr 2009 14:30:57 +0000 (15:30 +0100)]
parport: Use the PCI IRQ if offered
PCI parallel port devices can IRQ share so we should stop them hogging
the line and making a mess on modern PC systems. We know the sharing
side works as the PCMCIA driver has shared the parallel port IRQ for
some time.
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Breno Leitao [Tue, 7 Apr 2009 15:53:48 +0000 (16:53 +0100)]
tty: jsm cleanups
Here are some cleanups, mainly removing unused variables and silly
declarations.
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 15:53:11 +0000 (16:53 +0100)]
Adjust path to gpio headers
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 15:52:49 +0000 (16:52 +0100)]
KGDB_SERIAL_CONSOLE check for module
Depend on KGDB_SERIAL_CONSOLE being set to N rather than !Y, since it can
be built as a module.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 15:52:39 +0000 (16:52 +0100)]
Change KCONFIG name
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sonic Zhang [Tue, 7 Apr 2009 15:52:26 +0000 (16:52 +0100)]
tty: Blackin CTS/RTS
Both software emulated and hardware based CTS and RTS are enabled in
serial driver.
The CTS RTS PIN connection on BF548 UART port is defined as a modem
device not as a host device. In order to test it under Linux, please
nake a cross UART cable to exchange CTS and RTS signal.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sonic Zhang [Tue, 7 Apr 2009 15:51:15 +0000 (16:51 +0100)]
Change hardware flow control from poll to interrupt driven
Only the CTS bit is affected.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Christian Pellegrin [Tue, 7 Apr 2009 15:48:51 +0000 (16:48 +0100)]
Add support for the MAX3100 SPI UART.
(akpm: queued pending confirmation of the new major number)
[randy.dunlap@oracle.com: select SERIAL_CORE]
Signed-off-by: Christian Pellegrin <chripell@fsfe.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Tue, 7 Apr 2009 15:48:35 +0000 (16:48 +0100)]
lanana: assign a device name and numbering for MAX3100
This is a low density serial port so needs a real major/minor
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Tue, 7 Apr 2009 15:48:27 +0000 (16:48 +0100)]
serqt: initial clean up pass for tty side
Avoid using port->tty where possible (makes refcount fixing easier
later).
Remove unused code (the ioctl path is not used if the device has
mget/mset functions)
Remove various un-needed typecasts and long names so it could read it to
do the changes.
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Claudio Scordino [Tue, 7 Apr 2009 15:48:19 +0000 (16:48 +0100)]
tty: Use the generic RS485 ioctl on CRIS
Use the new general RS485 Linux data structure (introduced by Alan with
commit number
c26c56c0f40e200e61d1390629c806f6adaffbcc) in the Cris
architecture too (currently, Cris still uses the old private data
structure instead of the new one).
Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Tested-by: Hinko Kocevar <hinko.kocevar@cetrtapot.si>
Tested-by: Janez Cufer <janez.cufer@cetrtapot.si>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adrian Bunk [Tue, 7 Apr 2009 15:48:07 +0000 (16:48 +0100)]
tty: Correct inline types for tty_driver_kref_get()
tty_driver_kref_get() should be static inline and not extern inline
(the latter even changed it's semantics in gcc >= 4.3).
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Miklos Szeredi [Mon, 6 Apr 2009 15:41:00 +0000 (17:41 +0200)]
splice: fix deadlock in splicing to file
There's a possible deadlock in generic_file_splice_write(),
splice_from_pipe() and ocfs2_file_splice_write():
- task A calls generic_file_splice_write()
- this calls inode_double_lock(), which locks i_mutex on both
pipe->inode and target inode
- ordering depends on inode pointers, can happen that pipe->inode is
locked first
- __splice_from_pipe() needs more data, calls pipe_wait()
- this releases lock on pipe->inode, goes to interruptible sleep
- task B calls generic_file_splice_write(), similarly to the first
- this locks pipe->inode, then tries to lock inode, but that is
already held by task A
- task A is interrupted, it tries to lock pipe->inode, but fails, as
it is already held by task B
- ABBA deadlock
Fix this by explicitly ordering locks: the outer lock must be on
target inode and the inner lock (which is later unlocked and relocked)
must be on pipe->inode. This is OK, pipe inodes and target inodes
form two nonoverlapping sets, generic_file_splice_write() and friends
are not called with a target which is a pipe.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: Mark Fasheh <mfasheh@suse.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ryusuke Konishi [Tue, 7 Apr 2009 02:02:00 +0000 (19:02 -0700)]
nilfs2: support nanosecond timestamp
After a review of user's feedback for finding out other compatibility
issues, I found nilfs improperly initializes timestamps in inode;
CURRENT_TIME was used there instead of CURRENT_TIME_SEC even though nilfs
didn't have nanosecond timestamps on disk. A few users gave us the report
that the tar program sometimes failed to expand symbolic links on nilfs,
and it turned out to be the cause.
Instead of applying the above displacement, I've decided to support
nanosecond timestamps on this occation. Fortunetaly, a needless 64-bit
field was in the nilfs_inode struct, and I found it's available for this
purpose without impact for the users.
So, this will do the enhancement and resolve the tar problem.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ryusuke Konishi [Tue, 7 Apr 2009 02:01:59 +0000 (19:01 -0700)]
nilfs2: introduce secondary super block
The former versions didn't have extra super blocks. This improves the
weak point by introducing another super block at unused region in tail of
the partition.
This doesn't break disk format compatibility; older versions just ingore
the secondary super block, and new versions just recover it if it doesn't
exist. The partition created by an old mkfs may not have unused region,
but in that case, the secondary super block will not be added.
This doesn't make more redundant copies of the super block; it is a future
work.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ryusuke Konishi [Tue, 7 Apr 2009 02:01:58 +0000 (19:01 -0700)]
nilfs2: simplify handling of active state of segments
will reduce some lines of segment constructor. Previously, the state was
complexly controlled through a list of segments in order to keep
consistency in meta data of usage state of segments. Instead, this
presents ``calculated'' active flags to userland cleaner program and stop
maintaining its real flag on disk.
Only by this fake flag, the cleaner cannot exactly know if each segment is
reclaimable or not. However, the recent extension of nilfs_sustat ioctl
struct (nilfs2-extend-nilfs_sustat-ioctl-struct.patch) can prevent the
cleaner from reclaiming in-use segment wrongly.
So, now I can apply this for simplification.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ryusuke Konishi [Tue, 7 Apr 2009 02:01:57 +0000 (19:01 -0700)]
nilfs2: mark minor flag for checkpoint created by internal operation
Nilfs creates checkpoints even for garbage collection or metadata updates
such as checkpoint mode change. So, user often sees checkpoints created
only by such internal operations.
This is inconvenient in some situations. For example, application that
monitors checkpoints and changes them to snapshots, will fall into an
infinite loop because it cannot distinguish internally created
checkpoints.
This patch solves this sort of problem by adding a flag to checkpoint for
identification.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ryusuke Konishi [Tue, 7 Apr 2009 02:01:56 +0000 (19:01 -0700)]
nilfs2: clean up sketch file
The sketch file is a file to mark checkpoints with user data. It was
experimentally introduced in the original implementation, and now
obsolete. The file was handled differently with regular files; the file
size got truncated when a checkpoint was created.
This stops the special treatment and will treat it as a regular file.
Most users are not affected because mkfs.nilfs2 no longer makes this file.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ryusuke Konishi [Tue, 7 Apr 2009 02:01:55 +0000 (19:01 -0700)]
nilfs2: super block operations fix endian bug
This adds a missing endian conversion of checksum field in the super
block. This fixes compatibility issue on big endian machines which will
come to surface after supporting recovery of super block.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ryusuke Konishi [Tue, 7 Apr 2009 02:01:55 +0000 (19:01 -0700)]
nilfs2: replace BUG_ON and BUG calls triggerable from ioctl
Pekka Enberg advised me:
> It would be nice if BUG(), BUG_ON(), and panic() calls would be
> converted to proper error handling using WARN_ON() calls. The BUG()
> call in nilfs_cpfile_delete_checkpoints(), for example, looks to be
> triggerable from user-space via the ioctl() system call.
This will follow the comment and keep them to a minimum.
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>