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2006-10-04[PARISC] Enable interrupts while spinningMatthew Wilcox
Use the __raw_spin_lock_flags routine so we can take an interrupt while spinning. This re-fixes a bug jejb found on 2005-10-20: CPU0 does a flush_tlb_all holding the vmlist_lock for write. CPU1 tries a cat of /proc/meminfo which tries to acquire vmlist_lock for read CPU1 is now spinning with interrupts disabled CPU0 tries to execute a smp_call_function to flush the local tlb caches This is now a deadlock because CPU1 is spinning with interrupts disabled and can never receive the IPI Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Add new function to start local Interval Timer, start_cpu_itimer()Grant Grundler
I couldn't find where the itimer was getting started for slave CPUs. CPU 0 (master) itimer was started in time_init() (arch/parisc/kernel/time.c). start_cpu_itimer() code was striped from time_init(). Slaves now start their itimer in smp_cpu_init(). This is a first step towards making gettimeoffset() work for SMP. Next step will be to determine the CR16 (cycle counter) offsets for each CPU relative to the master (CPU 0). Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Prevent processor_probe() from clobbering cpu_data[0]Grant Grundler
processor_probe() shouldn't clobber cpu_data[0] cpu_data[0].it_value (used by timer_interrupt()) is already set. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Use CONFIG_HZ to determine interval timer rate (aka clock ticks)Grant Grundler
This isn't likely to be causing problems for other bits of kernel code. I can't find any other user of CONFIG_HZ outside of arch specific code. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Implement futex_atomic_cmpxchg_inatomicCarlos O'Donell
Implement trivial futex_atomic_cmpxchg_inatomic for testing. Signed-off-by: Carlos O'Donell <carlos@systemhalted.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Improve rwlock implementationMatthew Wilcox
Rewrite rwlock implementation to avoid various deadlocks in the current scheme. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] [BUGFIX] nullify branch delay slot of the jump back toKyle McMartin
intr_restore in intr_do_preempt. This prevents the execution of an unwanted insn... Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Clean up asm-parisc/serial.hMatthew Wilcox
Russell King pointed out that asm/serial.h is anachronistic and we were misusing BASE_BAUD. So fix BASE_BAUD for PCI 16550 UARTs, move LASI_BASE_BAUD into 8250_gsc, and fix the obsolete comment about reserving serial port slots. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Allow overriding personality with sys_personalityKyle McMartin
And now suddenly, linux32 works on parisc... Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Switch is_compat_task to use TIF_32BITKyle McMartin
Stop using PER_LINUX32 to designate processes needing compaterizing. Convert is_compat_task to use TIF_32BIT and set TIF_32BIT in binfmt_elf32.c Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Prevent multiple includes of asm-parisc/parisc-device.hKyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] parisc specific kmap API implementation for pa8800James Bottomley
This patch fixes the pa8800 at a gross level (there are still other subtle incoherency issues which can still cause crashes and HPMCs). What it does is try to force eject inequivalent aliases before they become visible to the L2 cache (which is where we get the incoherence problems). A new function (parisc_requires_coherency) is introduced in asm/processor.h to identify the pa8x00 processors (8800 and 8900) which have the issue. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Document that D-class can also use serial_muxCarlos O'Donell
Signed-off-by: Carlos O'Donell <carlos@systemhalted.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Fix up parisc irq handling for genirq changesKyle McMartin
Clean up enough to get things compiling again in the interim. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Add asm-parisc/mckinley.h bus headerKyle McMartin
Add header for McKinley bus related code. Remove extern decl of proc_mckinley_root in drivers/parisc/sba_iommu.c Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Abstract shift register left in .SKyle McMartin
Abstract existing shift register left macros as shift register right are. This lends itself to a nice clean up of some #ifdef blocks in entry.S Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PATCH] Need forward decl of task_struct in linux/debug_locks.hKyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Remove variables decls duplicated from asm-generic/sections.hKyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] PA7200 also supports prefetch for readKyle McMartin
It seems PA7200 processors also suppress traps on loads to %r0. This means we can prefetch for read on these cpus. Of course, we can't support prefetch for write, since that requires LOAD DOUBLEWORD which was added with PA2.0 Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Untangle <asm/processor.h> header include messKyle McMartin
asm/processor.h on parisc wants spinlocks for cpuinfo, but linux/spinlock_types.h needs lockdep, and lockdep wants prefetch. This leads to a horrible circular dependancy, because <asm/processor.h> is including something which depends on things which are not defined until the end of the file. Kludge around this by moving prefetch related code into <asm/prefetch.h> and including it before <linux/spinlock_types.h>, however this is just a temporary solution until this mess can be cleaned up. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-03[PATCH] i383 numa: fix numaq/summit apicid conflictKeith Mannthey
This allows numaq to properly align cpus to their given node during boot. Pass logical apicid to apicid_to_node and allow the summit sub-arch to use physical apicid (hard_smp_processor_id()). Tested against numaq and summit based systems with no issues. Signed-off-by: Keith Mannthey <kmannth@us.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (39 commits) Add missing maintainer countries in CREDITS Fix bytes <-> kilobytes typo in Kconfig for ramdisk fix a typo in Documentation/pi-futex.txt BUG_ON conversion for fs/xfs/ BUG_ON() conversion in fs/nfsd/ BUG_ON conversion for fs/reiserfs BUG_ON cleanups in arch/i386 BUG_ON cleanup in drivers/net/tokenring/ BUG_ON cleanup for drivers/md/ kerneldoc-typo in led-class.c debugfs: spelling fix rcutorture: Fix incorrect description of default for nreaders parameter parport: Remove space in function calls Michal Wronski: update contact info Spelling fix: "control" instead of "cotrol" reboot parameter in Documentation/kernel-parameters.txt Fix copy&waste bug in comment in scripts/kernel-doc remove duplicate "until" from kernel/workqueue.c ite_gpio fix tabbage fix file specification in comments ... Fixed trivial path conflicts due to removed files: arch/mips/dec/boot/decstation.c, drivers/char/ite_gpio.c
2006-10-03Add missing maintainer countries in CREDITSSamuel Tardieu
Add missing maintainer countries. Signed-off-by: Samuel Tardieu <sam@rfc1149.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix bytes <-> kilobytes typo in Kconfig for ramdiskChristian Borntraeger
This is a small fix for a typo in Kconfig. The default value for the block size is 1024 bytes not 1024 kilobytes. Signed-off-by: Christian Borntraeger <borntrae@de.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03fix a typo in Documentation/pi-futex.txtRiccardo Magliocchetti
Signed-off-by: Riccardo Magliocchetti <riccardo@datahost.it> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03BUG_ON conversion for fs/xfs/Eric Sesterhenn
This patch converts two if () BUG(); construct to BUG_ON(); which occupies less space, uses unlikely and is safer when BUG() is disabled. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03BUG_ON() conversion in fs/nfsd/Eric Sesterhenn
This patch converts an if () BUG(); construct to BUG_ON(); which occupies less space, uses unlikely and is safer when BUG() is disabled. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03BUG_ON conversion for fs/reiserfsEric Sesterhenn
This patch converts several if () BUG(); construct to BUG_ON(); which occupies less space, uses unlikely and is safer when BUG() is disabled. S_ISREG() has no side effects, so the conversion is safe. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03BUG_ON cleanups in arch/i386Eric Sesterhenn
This changes a couple of if() BUG(); constructs to BUG_ON(); so it can be safely optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03BUG_ON cleanup in drivers/net/tokenring/Eric Sesterhenn
This patch converts one if() BUG(); to BUG_ON(); so it can be safely optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03BUG_ON cleanup for drivers/md/Eric Sesterhenn
This changes two if() BUG(); usages to BUG_ON(); so people can disable it safely. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Merge master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] use ENOTTY instead of ENOIOCTLCMD in ioctl()
2006-10-03kerneldoc-typo in led-class.cHenrik Kretzschmar
Fixes a typo in led-class.c kerneldoc. Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03debugfs: spelling fixKomal Shah
Change debufs_create_file() to debugfs_create_file(). Signed-off-by: Komal Shah <komal_shah802003@yahoo.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03rcutorture: Fix incorrect description of default for nreaders parameterJosh Triplett
The comment for the nreaders parameter of rcutorture gives the default as 4*ncpus, but the value actually defaults to 2*ncpus; fix the comment. Signed-off-by: Josh Triplett <josh@freedesktop.org> Acked-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03parport: Remove space in function callsMatthew Martin
This removes the space in function calls in drivers/parport/daisy.c Signed-off-by: Matthew Martin <lihnucks@gmail.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Michal Wronski: update contact infoMichal Wronski
My email has changed. Signed-Off-By: Michal Wronski <michal.wronski@gmail.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Spelling fix: "control" instead of "cotrol"Michael Opdenacker
This patch against fixes a spelling mistake ("control" instead of "cotrol"). Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03reboot parameter in Documentation/kernel-parameters.txtMichael Opdenacker
Documentation fix for the arm and arm26 architectures, in which the reboot kernel parameter is set in arch/*/kernel/process.c Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix copy&waste bug in comment in scripts/kernel-docRolf Eike Beer
This is obviously copied from some lines before without proper fixing. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03remove duplicate "until" from kernel/workqueue.cRolf Eike Beer
s/until until/until/ Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03ite_gpio fix tabbageJim Cromie
caught some leading spaces in passing. Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03fix file specification in commentsUwe Zeisberger
Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Documentation: remove duplicated wordsPaolo Ornati
Remove many duplicated words under Documentation/ and do other small cleanups. Examples: "and and" --> "and" "in in" --> "in" "the the" --> "the" "the the" --> "to the" ... Signed-off-by: Paolo Ornati <ornati@fastwebnet.it> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'S'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letter 'S'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Alan Cox <alan@redhat.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'Q'-'R'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letters 'Q'-'R'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix "can not" in Documentation and KconfigMatt LaPlante
Randy brought it to my attention that in proper english "can not" should always be written "cannot". I donot see any reason to argue, even if I mightnot understand why this rule exists. This patch fixes "can not" in several Documentation files as well as three Kconfigs. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Fix typos in Documentation/: 'N'-'P'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letters 'N'-'P'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03[WATCHDOG] use ENOTTY instead of ENOIOCTLCMD in ioctl()Wim Van Sebroeck
Return ENOTTY instead of ENOIOCTLCMD in user-visible ioctl() results The watchdog drivers used to return ENOIOCTLCMD for bad ioctl() commands. ENOIOCTLCMD should not be visible by the user, so use ENOTTY instead. Signed-off-by: Samuel Tardieu <sam@rfc1149.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
2006-10-03Fix typos in Documentation/: 'H'-'M'Matt LaPlante
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letters 'H'-'M'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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