07 May, 2009
2 commits
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Change last "i386" to X86-32 as is used throughout the rest of the file.
Change combination of X86-32,X86-64 to just X86, as is done throughout the
rest of the file.Add a note that hyphens and underscores are equivalent in parameter names,
with examples.Signed-off-by: Randy Dunlap
Cc: Jan Engelhardt
Cc: Christopher Sylvain
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
kernel boot parameter `hashdist' now defaults on for all 64bit NUMA.
Signed-off-by: Hugh Dickins
Acked-by: Mel Gorman
Acked-by: David S. Miller
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
06 May, 2009
1 commit
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…/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:
kernel/posix-cpu-timers.c: fix sparse warning
dma-debug: remove broken dma memory leak detection for 2.6.30
locking: Documentation: lockdep-design.txt, fix note of state bits
03 May, 2009
5 commits
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: document the multi-touch (MT) protocol
Input: add detailed multi-touch finger data report protocol
Input: allow certain EV_ABS events to bypass all filtering
Input: bcm5974 - add documentation for the driver
Input: bcm5974 - augment debug information
Input: bcm5974 - Add support for the Macbook 5 (Unibody)
Input: bcm5974 - add quad-finger tapping
Input: bcm5974 - prepare for a new trackpad header type
Input: appletouch - fix DMA to/from stack buffer
Input: wacom - fix TabletPC touch bug
Input: lifebook - add DMI entry for Fujitsu B-2130
Input: ALPS - add signature for Toshiba Satellite Pro M10
Input: elantech - make sure touchpad is really in absolute mode
Input: elantech - provide a workaround for jumpy cursor on firmware 2.34
Input: ucb1400 - use disable_irq_nosync() in irq handler
Input: tsc2007 - use disable_irq_nosync() in irq handler
Input: sa1111ps2 - use disable_irq_nosync() in irq handlers
Input: omap-keypad - use disable_irq_nosync() in irq handler -
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
kbuild, modpost: Check the section flags, to catch missing "ax"/"aw"
kbuild: fix comment in modpost.c
kbuild: fix scripts/setlocalversion with git
kbuild: fix Module.markers permission error under cygwin
docs: also clean index.html
kbuild: remove a tag file before it is regenerated
kbuild: "make prepare" should be "make modules_prepare"
kbuild: clean Module.markers and modules.order for out-of-tree modules
avr32: drop unused CLEAN_FILES -
Avoid setting less than two pages for vm_dirty_bytes: this is necessary to
avoid potential division by 0 (like the following) in get_dirty_limits().[ 49.951610] divide error: 0000 [#1] PREEMPT SMP
[ 49.952195] last sysfs file: /sys/devices/pci0000:00/0000:00:01.1/host0/target0:0:0/0:0:0:0/block/sda/uevent
[ 49.952195] CPU 1
[ 49.952195] Modules linked in: pcspkr
[ 49.952195] Pid: 3064, comm: dd Not tainted 2.6.30-rc3 #1
[ 49.952195] RIP: 0010:[] [] get_dirty_limits+0xe9/0x2c0
[ 49.952195] RSP: 0018:ffff88001de03a98 EFLAGS: 00010202
[ 49.952195] RAX: 00000000000000c0 RBX: ffff88001de03b80 RCX: 28f5c28f5c28f5c3
[ 49.952195] RDX: 0000000000000000 RSI: 00000000000000c0 RDI: 0000000000000000
[ 49.952195] RBP: ffff88001de03ae8 R08: 0000000000000000 R09: 0000000000000000
[ 49.952195] R10: ffff88001ddda9a0 R11: 0000000000000001 R12: 0000000000000001
[ 49.952195] R13: ffff88001fbc8218 R14: ffff88001de03b70 R15: ffff88001de03b78
[ 49.952195] FS: 00007fe9a435b6f0(0000) GS:ffff8800025d9000(0000) knlGS:0000000000000000
[ 49.952195] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 49.952195] CR2: 00007fe9a39ab000 CR3: 000000001de38000 CR4: 00000000000006e0
[ 49.952195] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 49.952195] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 49.952195] Process dd (pid: 3064, threadinfo ffff88001de02000, task ffff88001ddda250)
[ 49.952195] Stack:
[ 49.952195] ffff88001fa0de00 ffff88001f2dbd70 ffff88001f9fe800 000080b900000000
[ 49.952195] 00000000000000c0 ffff8800027a6100 0000000000000400 ffff88001fbc8218
[ 49.952195] 0000000000000000 0000000000000600 ffff88001de03bb8 ffffffff802d3ed7
[ 49.952195] Call Trace:
[ 49.952195] [] balance_dirty_pages_ratelimited_nr+0x1d7/0x3f0
[ 49.952195] [] ? ext3_writeback_write_end+0x9e/0x120
[ 49.952195] [] generic_file_buffered_write+0x12f/0x330
[ 49.952195] [] __generic_file_aio_write_nolock+0x26d/0x460
[ 49.952195] [] ? generic_file_aio_write+0x52/0xd0
[ 49.952195] [] generic_file_aio_write+0x69/0xd0
[ 49.952195] [] ext3_file_write+0x26/0xc0
[ 49.952195] [] do_sync_write+0xf1/0x140
[ 49.952195] [] ? get_lock_stats+0x2a/0x60
[ 49.952195] [] ? autoremove_wake_function+0x0/0x40
[ 49.952195] [] vfs_write+0xcb/0x190
[ 49.952195] [] sys_write+0x50/0x90
[ 49.952195] [] system_call_fastpath+0x16/0x1b
[ 49.952195] Code: 00 00 00 2b 05 09 1c 17 01 48 89 c6 49 0f af f4 48 c1 ee 02 48 89 f0 48 f7 e1 48 89 d6 31 d2 48 c1 ee 02 48 0f af 75 d0 48 89 f0 f7 f7 41 8b 95 ac 01 00 00 48 89 c7 49 0f af d4 48 c1 ea 02
[ 49.952195] RIP [] get_dirty_limits+0xe9/0x2c0
[ 49.952195] RSP
[ 50.096523] ---[ end trace 008d7aa02f244d7b ]---Signed-off-by: Andrea Righi
Cc: Peter Zijlstra
Cc: David Rientjes
Cc: Dave Chinner
Cc: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
scripts/kernel-doc can (incorrectly) delete struct members that are
surrounded by /* ... */ /* ... */ if there is a /*
private: */ comment in there somewhere also.Fix that by making the "/* private:" only allow whitespace between /* and
"private:", not anything/everything in the world.This fixes some erroneous kernel-doc warnings that popped up while
processing include/linux/usb/composite.h.Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change page_mkwrite to allow implementations to return with the page
locked, and also change it's callers (in page fault paths) to hold the
lock until the page is marked dirty. This allows the filesystem to have
full control of page dirtying events coming from the VM.Rather than simply hold the page locked over the page_mkwrite call, we
call page_mkwrite with the page unlocked and allow callers to return with
it locked, so filesystems can avoid LOR conditions with page lock.The problem with the current scheme is this: a filesystem that wants to
associate some metadata with a page as long as the page is dirty, will
perform this manipulation in its ->page_mkwrite. It currently then must
return with the page unlocked and may not hold any other locks (according
to existing page_mkwrite convention).In this window, the VM could write out the page, clearing page-dirty. The
filesystem has no good way to detect that a dirty pte is about to be
attached, so it will happily write out the page, at which point, the
filesystem may manipulate the metadata to reflect that the page is no
longer dirty.It is not always possible to perform the required metadata manipulation in
->set_page_dirty, because that function cannot block or fail. The
filesystem may need to allocate some data structure, for example.And the VM cannot mark the pte dirty before page_mkwrite, because
page_mkwrite is allowed to fail, so we must not allow any window where the
page could be written to if page_mkwrite does fail.This solution of holding the page locked over the 3 critical operations
(page_mkwrite, setting the pte dirty, and finally setting the page dirty)
closes out races nicely, preventing page cleaning for writeout being
initiated in that window. This provides the filesystem with a strong
synchronisation against the VM here.- Sage needs this race closed for ceph filesystem.
- Trond for NFS (http://bugzilla.kernel.org/show_bug.cgi?id=12913).
- I need it for fsblock.
- I suspect other filesystems may need it too (eg. btrfs).
- I have converted buffer.c to the new locking. Even simple block allocation
under dirty pages might be susceptible to i_size changing under partial page
at the end of file (we also have a buffer.c-side problem here, but it cannot
be fixed properly without this patch).
- Other filesystems (eg. NFS, maybe btrfs) will need to change their
page_mkwrite functions themselves.[ This also moves page_mkwrite another step closer to fault, which should
eventually allow page_mkwrite to be moved into ->fault, and thus avoiding a
filesystem calldown and page lock/unlock cycle in __do_fault. ][akpm@linux-foundation.org: fix derefs of NULL ->mapping]
Cc: Sage Weil
Cc: Trond Myklebust
Signed-off-by: Nick Piggin
Cc: Valdis Kletnieks
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 May, 2009
2 commits
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Missed index.html in "make cleandocs", so add it.
Signed-off-by: Randy Dunlap
Signed-off-by: Sam Ravnborg -
This patchs adds documentation for the multi-touch protocol to
Documentation/input/.[randy.dunlap@oracle.com: grammar fixes]
Signed-off-by: Henrik Rydberg
Signed-off-by: Dmitry Torokhov
29 Apr, 2009
2 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (24 commits)
e100: do not go D3 in shutdown unless system is powering off
netfilter: revised locking for x_tables
Bluetooth: Fix connection establishment with low security requirement
Bluetooth: Add different pairing timeout for Legacy Pairing
Bluetooth: Ensure that HCI sysfs add/del is preempt safe
net: Avoid extra wakeups of threads blocked in wait_for_packet()
net: Fix typo in net_device_ops description.
ipv4: Limit size of route cache hash table
Add reference to CAPI 2.0 standard
Documentation/isdn/INTERFACE.CAPI
update Documentation/isdn/00-INDEX
ixgbe: Fix WoL functionality for 82599 KX4 devices
veth: prevent oops caused by netdev destructor
xfrm: wrong hash value for temporary SA
forcedeth: tx timeout fix
net: Fix LL_MAX_HEADER for CONFIG_TR_MODULE
mlx4_en: Handle page allocation failure during receive
mlx4_en: Fix cleanup flow on cq activation
vlan: update vlan carrier state for admin up/down
netfilter: xt_recent: fix stack overread in compat code
... -
This patch adds documentation for the bcm5974 to Documentation/input/.
Signed-off-by: Henrik Rydberg
Signed-off-by: Dmitry Torokhov
28 Apr, 2009
2 commits
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This reverts commit 8032b526d1a3bd91ad633dd3a3b5fdbc47ad54f1.
Hey, it was only meant to be a single release. Now they can all die as
far as I'm concerned.[ Just kidding. They're cute and cuddly.
Except when they have horrible nasty facial diseases. Oh, and I guess
they're not actually that cuddly even when disease-free. ]Signed-off-by: Linus Torvalds
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: only save/restore existent registers in the PCIe capability
x86/PCI: don't bother with root quirks if _CRS is used
docbooks: add/fix PCI kernel-doc
PCI: cleanup debug output resources
x86/PCI: set_pci_bus_resources_arch_default cleanups
x86/PCI: Move set_pci_bus_resources_arch_default into arch/x86
x86/PCI: don't call e820_all_mapped with -1 in the mmconfig case
PCI quirk: disable MSI on VIA VT3364 chipsets
27 Apr, 2009
5 commits
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Move the entry about CAPI 2.0 to the beginning and add a URL.
Incorporate changes suggested by Randy Dunlap, thanks for proofreading.Signed-off-by: Karsten Keil
Signed-off-by: David S. Miller -
isdn: document Kernel CAPI driver interface
Create a file Documentation/isdn/INTERFACE.CAPI describing the
interface between the kernel CAPI subsystem and ISDN device drivers,
analogous to the existing Documentation/isdn/INTERFACE for the old
isdn4linux subsystem. Also add kerneldoc comments to the exported
functions in drivers/isdn/capi/kcapi.c.Impact: Documentation
Signed-off-by: Tilman Schmidt
Signed-off-by: Karsten Keil
Signed-off-by: David S. Miller -
After the merging of mISDN, state which files refer only to the
old isdn4linux subsystem. Also add a few missing files.Signed-off-by: Tilman Schmidt
Signed-off-by: Karsten Keil
Signed-off-by: David S. Miller -
…git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, hpet: Stop soliciting hpet=force users on ICH4M
x86: check boundary in setup_node_bootmem()
uv_time: add parameter to uv_read_rtc()
x86: hpet: fix periodic mode programming on AMD 81xx
x86: more than 8 32-bit CPUs requires X86_BIGSMP
x86: avoid theoretical spurious NMI backtraces with CONFIG_CPUMASK_OFFSTACK=y
x86: fix boot crash in NMI watchdog with CONFIG_CPUMASK_OFFSTACK=y and flat APIC
x86-64: fix FPU corruption with signals and preemption
x86/uv: fix for no memory at paddr 0
docs, x86: add nox2apic back to kernel-parameters.txt
x86: mm/numa_32.c calculate_numa_remap_pages should use __init
x86, kbuild: make "make install" not depend on vmlinux
x86/uv: fix init of cpu-less nodes
x86/uv: fix init of memory-less nodes -
From source code of get_usage_char(), the previous note is not correct,
so fix it.static char get_usage_char(struct lock_class *class, enum lock_usage_bit bit)
{
char c = '.';if (class->usage_mask & lock_flag(bit + 2))/*LOCK_ENABLED_##STATE*/
c = '+';
if (class->usage_mask & lock_flag(bit)) {/*LOCK_USED_IN_##STATE*/
c = '-';
if (class->usage_mask & lock_flag(bit + 2))
c = '?';
}return c;
}note:
1) The 'bit' parameter always is passed as LOCK_USED_IN_##STATE
or LOCK_USED_IN_##STATE_READ , from get_usage_chars().Signed-off-by: Ming Lei
LKML-Reference:
Signed-off-by: Ingo Molnar
25 Apr, 2009
1 commit
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Adjust the CacheFiles documentation to use the correct names of the credential
pointers in task_struct.The documentation was using names from the old versions of the credentials
patches.Signed-off-by: Marc Dionne
Signed-off-by: David Howells
Signed-off-by: Linus Torvalds
24 Apr, 2009
4 commits
-
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (34 commits)
ACPI, i915: Register ACPI video even when not modesetting
Revert "ACPICA: delete check for AML access to port 0x81-83"
I/O port protection: update for windows compatibility.
sony-laptop: always try to unblock rfkill on load
sony-laptop: fix bogus error message display on resume
ACPI: EC: Fix ACPI EC resume non-query interrupt message
sony-laptop: SNC input event 38 fix
sony-laptop: SNC 127 Initialization Fix
sony-laptop: Duplicate SNC 127 Event Fix
ACPI: prevent processor.max_cstate=0 boot crash
ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M
ACPI: delete obsolete "bus master activity" proc field
ACPI: idle: mark_tsc_unstable() at init-time, not run-time
ACPI: add /sys/firmware/acpi/interrupts/sci_not counter
ACPI video: fix an error when the brightness levels on AC and on Battery are same
acpi-cpufreq: Do not let get_measured perf depend on internal variable
acpi-cpufreq: style-only: add parens to math expression
acpi-cpufreq: Cleanup: Use printk_once
x86, acpi_cpufreq: Fix the NULL pointer dereference in get_measured_perf
thinkpad-acpi: bump up version to 0.23
... -
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc: Fix modular build of ide-pmac when mediabay is built in
powerpc/pasemi: Fix build error on UP
powerpc: Make macintosh/mediabay driver depend on CONFIG_BLOCK
maintainers: Fix PS3 patterns
powerpc/ps3: Fix CONFIG_PS3_FLASH=n build warning
powerpc/32: Don't clobber personality flags on exec
powerpc: Fix crash on CPU hotplug
powerpc/85xx: Remove defconfigs that mpc85xx_{smp_}defconfig cover
powerpc/85xx: Added SMP defconfig
powerpc/85xx: Enabled a bunch of FSL specific drivers/options
powerpc/85xx: Updated generic mpc85xx_defconfig
powerpc: don't disable SATA interrupts on Freescale MPC8610 HPCD
fsl_rio: Pass the proper device to dma mapping routines
powerpc: Fix of_node_put() exit path in of_irq_map_one()
powerpc/5200: defconfig updates
powerpc/5200: Add FLASH nodes to lite5200 device tree
powerpc/device-tree: Document MTD nodes with multiple "reg" tuples
powerpc/of-device-tree: Factor MTD physmap bindings out of booting-without-of
powerpc/5200: Bring the legacy fsl_spi_platform_data hooks back
23 Apr, 2009
1 commit
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Add drivers/pci/*.c source files to DocBook/kernel-api.tmpl
and update those pci/*.c source files that need kernel-doc fixes.Signed-off-by: Randy Dunlap
Signed-off-by: Jesse Barnes
22 Apr, 2009
3 commits
-
Merge reason: hpet.c changed upstream, make sure we test against that
Signed-off-by: Ingo Molnar
-
This is a doc-only patch which I hope will reduce the number of
spi_master controller driver patches starting out with a common
implementation bug.(As in: almost every spi_master driver I see starts out with its
version of this bug. Sigh.)It just re-emphasizes that the setup() method may be called for one
device while a transfer is active on another ... which means that most
driver implementations shouldn't touch any registers.Signed-off-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
21 Apr, 2009
3 commits
-
This counter may prove useful in debugging some
spurious interrupt issues seen in the field.Signed-off-by: Len Brown
-
Documentation/filesystems/vfs.txt incorrectly states that the kernel is
locked during the call to statfs (Documentation/filesystems/Locking
correctly says it is not). This patch removes the offending sentence.remove reference to BKL being held in statfs
Signed-off-by: Adrian McMenamin
Signed-off-by: Randy Dunlap
Cc: Alexander Viro
Signed-off-by: Al Viro -
Merge reason: We need the x86/uv updates from upstream, to queue up
dependent fix.Signed-off-by: Ingo Molnar
20 Apr, 2009
1 commit
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* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest-and-virtio:
lguest: document 32-bit and PAE requirements
lguest: tell git to ignore Documentation/lguest/lguest
virtio: fix suspend when using virtio_balloon
lguest: fix guest crash on non-linear addresses in gdt pvops
lguest: fix crash on vmlinux images
19 Apr, 2009
4 commits
-
Robert noted that we don't actually document that lguest is 32-bit only,
nor that PAE must be off (CONFIG_PAE is now prompted for if HIGHMEM is
set to "off).Signed-off-by: Rusty Russell
Cc: lguest@ozlabs.org
Cc: "Robert P. J. Day" -
This is the example lguest launcher binary.
Signed-off-by: Matt Kraai
Signed-off-by: Rusty Russell -
Following patch introduce support for setting options
to gcc that has effect for current directory and all
subdirectories.The typical use case are an architecture or a subsystem that
decide to cover all files with -Werror.
Today alpha, mips and sparc uses -Werror in almost all their
Makefile- with subdir-ccflag-y it is now simpler to do so
as only the top-level directories needs to be covered.Likewise if we decide to cover a full subsystem such
as net/ with -Werror this is done by adding a single
line to net/Makefile.Signed-off-by: Sam Ravnborg
Cc: Ingo Molnar
Cc: "H. Peter Anvin"
Cc: Thomas Gleixner -
Re-add missing kernel-parameters documentation that was accidentally
deleted in commit 0cb55ad2.Thanks to Ingo and Weidong Han for the heads-up on this.
Signed-off-by: Randy Dunlap
cc: Ingo Molnar
cc: Len Brown
Signed-off-by: Linus Torvalds
18 Apr, 2009
4 commits
-
"nox2apic" was removed from kernel-parameters.txt by mistake, when
entries were sorted in alpha order (commit 0cb55ad2). But this early
parameter is still there, add it back to kernel-parameters.txt.[ Impact: add boot parameter description ]
Signed-off-by: Suresh Siddha
Signed-off-by: Weidong Han
Cc: Randy Dunlap
Cc: iommu@lists.linux-foundation.org
Cc: dwmw2@infradead.org
Cc: allen.m.kay@intel.com
Cc: fenghua.yu@intel.com
LKML-Reference:
Signed-off-by: Ingo Molnar -
Plenty of high-profile changes, so it deserves a new version number.
Features added since 0.22:
* Restrict unsafe LEDs
* New race-less brightness control strategy for IBM ThinkPads
* Disclose TGID of driver access from userspace (debug)
* Warn when deprecated functions are usedOther changes:
* Better debug messages in some subdrivers
* Removed "hotkey disable" support, since it breaks the driver
* Dropped "ibm-acpi" aliasSigned-off-by: Henrique de Moraes Holschuh
Signed-off-by: Len Brown -
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (43 commits)
staging: slicoss: update README
otus/zdusb.c: additional USB idnetifier
Staging: go7007: fix build issues
Staging: sxg: Fix leaks and checksum errors in transmit code path
Staging: sxg: Fix sleep in atomic context warning while loading driver
Staging: sxg: Use correct queue_id for transmitting non-TCP packets
Staging: sxg: Fire watchdog timer at end of open routine to change the link
Staging: Pohmelfs: Add load balancing between network states with the same priority.
Staging: Pohmelfs: Added IO permissions and priorities.
Staging: Pohmelfs: Added ->show_stats() callback.
Staging: Pohmelfs: Drop ftrans debugging code.
Staging: Pohmelfs: Use wait_on_page_timeout when waiting for remote directory sync instead of hardcoded 25 seconds.
Staging: Pohmelfs: Reduce debugging noise about non-existing objects.
Staging: Pohmelfs: Sync fs before killing it, since dentry cache is shrunk before writeback is invoked via generic_shutdown_super()
Staging: Pohmelfs: Extend remount option.
Staging: Pohmelfs: Set NETFS_INODE_REMOTE_SYNCED and clear NETFS_INODE_OWNED bits in the root inode.
Staging: Pohmelfs: Added 'need_lock' variable into debug print.
Staging: Pohmelfs: Disable read lock in pohmelfs_getattr().
Staging: Pohmelfs: Move parent lock to the place where we really have to send a lookup request to the server.
Staging: pohmelfs: Populate dentry cache when receiving the new readdir entry.
... -
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
UIO: fix specific device driver missing statement for depmod
Driver core: remove pr_fmt() from dynamic_dev_dbg() printk
driver core: prevent device_for_each_child from oopsing
dynamic debug: resurrect old pr_debug() semantics as pr_devel()
Driver Core: early platform driver
proc: mounts_poll() make consistent to mdstat_poll
sysfs: sysfs poll keep the poll rule of regular file.
driver core: allow non-root users to listen to uevents
driver core: fix driver_match_device
sysfs: don't use global workqueue in sysfs_schedule_callback()
