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2009-04-02xtensa: enforce slab alignment to maximum register widthOskar Schirmer
XCHAL_DATA_WIDTH is the maximum register width, slab caches should be aligned to this. Theoretical fix as all variants have had an XCHAL_DATA_WIDTH of 4 (wordsize) for now. But the S6000 variant will raise this to 16. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: cope with ram beginning at higher addressesJohannes Weiner
The current assumption of the memory code is that the first RAM PFN in the system is 0. Adjust the relevant code to play well with setups where memory starts at higher addresses, indicated by PLATFORM_DEFAULT_MEM_START. The new memory model looks like this: +----------+--+----------------------+----------------+ | | | | | | | | RAM | | | | | | | +----------+--+----------------------+----------------+ | | | | | +- PFN 0 | +- min_low_pfn +- max_low_pfn +- max_pfn | +- ARCH_PFN_OFFSET +- PLATFORM_DEFAULT_MEM_START >> PAGE_SIZE The memory map contains pages starting from pfn ARCH_PFN_OFFSET up to max_low_pfn. The only zone used right now will span exactly the same region. Usually, ARCH_PFN_OFFSET and min_low_pfn are the same value. Handle them separately for robustness. Gapping pages will be in the memory map but marked as reserved and won't be touched. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: don't make bootmem bitmap larger than requiredJohannes Weiner
If min_low_pfn is non-zero, the bitmap reserved for bootmem is bigger than needed. The number of pages bootmem has to maintain is the range from min_low_pfn to max_low_pfn. For now it has only been a theoretical mistake, min_low_pfn was always zero. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: fix init_bootmem_node() argument orderJohannes Weiner
The second argument to init_bootmem_node() is the PFN to place the bootmem bitmap at and the third argument is the first PFN on the node. This is currently backwards but never made any problems as both values were always zero. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: use correct stack pointer for stack tracesJohannes Weiner
Right now, the xtensa stacktrace code reads the _current_ kernel stack pointer if nothing is supplied. With debugging facilities like sysrq this means that the backtrace of the sysrq-handler is printed instead of a trace of the given task's stack. When no stack pointer is specified in show_trace() and show_stack(), use the stack pointer that comes with the handed in task descriptor to make stack traces more useful. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: beat Kconfig into shapeJohannes Weiner
Instead of making support code depend on variants or platforms, the latter should select what they need explicitely. Otherwise this starts looking weird when support code depends on !XTENSA_PLATFORM_FOO && !XTENSA_PLATFORM_BAR etc. This also includes some minor fixlets like converting bool and default to def_bool and fixing indentation and whitespace errors. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: remove redefinition of XCHAL_MMU_ASID_BITSJohannes Weiner
This constant is defined in all core headers. Remove the redundant definition which might error out if other includes lead to inclusion of <variant/core.h>. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: Remove two unneeded exports and make two symbols static in fs/mpage.c Cleanup after commit 585d3bc06f4ca57f975a5a1f698f65a45ea66225 Trim includes of fdtable.h Don't crap into descriptor table in binfmt_som Trim includes in binfmt_elf Don't mess with descriptor table in load_elf_binary() Get rid of indirect include of fs_struct.h New helper - current_umask() check_unsafe_exec() doesn't care about signal handlers sharing New locking/refcounting for fs_struct Take fs_struct handling to new file (fs/fs_struct.c) Get rid of bumping fs_struct refcount in pivot_root(2) Kill unsharing fs_struct in __set_personality()
2009-04-02ia64: implement interrupt-enabling rwlocksRobin Holt
Implement __raw_read_lock_flags and __raw_write_lock_flags for the ia64 architecture. [kosaki.motohiro@jp.fujitsu.com: typo fix] Signed-off-by: Petr Tesarik <ptesarik@suse.cz> Signed-off-by: Robin Holt <holt@sgi.com> Cc: <linux-arch@vger.kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: 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>
2009-04-02Allow rwlocks to re-enable interruptsRobin Holt
Pass the original flags to rwlock arch-code, so that it can re-enable interrupts if implemented for that architecture. Initially, make __raw_read_lock_flags and __raw_write_lock_flags stubs which just do the same thing as non-flags variants. Signed-off-by: Petr Tesarik <ptesarik@suse.cz> Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <linux-arch@vger.kernel.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02preadv/pwritev: MIPS: Add preadv(2) and pwritev(2) syscalls.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: <linux-api@vger.kernel.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02preadv/pwritev: Add preadv and pwritev system calls.Gerd Hoffmann
This patch adds preadv and pwritev system calls. These syscalls are a pretty straightforward combination of pread and readv (same for write). They are quite useful for doing vectored I/O in threaded applications. Using lseek+readv instead opens race windows you'll have to plug with locking. Other systems have such system calls too, for example NetBSD, check here: http://www.daemon-systems.org/man/preadv.2.html The application-visible interface provided by glibc should look like this to be compatible to the existing implementations in the *BSD family: ssize_t preadv(int d, const struct iovec *iov, int iovcnt, off_t offset); ssize_t pwritev(int d, const struct iovec *iov, int iovcnt, off_t offset); This prototype has one problem though: On 32bit archs is the (64bit) offset argument unaligned, which the syscall ABI of several archs doesn't allow to do. At least s390 needs a wrapper in glibc to handle this. As we'll need a wrappers in glibc anyway I've decided to push problem to glibc entriely and use a syscall prototype which works without arch-specific wrappers inside the kernel: The offset argument is explicitly splitted into two 32bit values. The patch sports the actual system call implementation and the windup in the x86 system call tables. Other archs follow as separate patches. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: <linux-api@vger.kernel.org> Cc: <linux-arch@vger.kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02sgi-gru: remove SGI_GRU as a valid config option for ia64 configs with SGI_UVRobin Holt
Some current configs turn on GRU for ia64. The GRU code does not correctly load on boot on ia64 (GRU does continue to work for x86-64), so changing the IA64 Kconfig to not select GRU on ia64 configs for now until we have time to fix. Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02sgi-gru: add macros for using the UV hub to send interruptsJack Steiner
Add macros for using the UV hub to send interrupts. Change the IPI code to use these macros. These macros will also be used in additional patches that will follow. Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02sgi-gru: add definitions of ia64 GRU MMRsJack Steiner
Add definitions for IA64 GRU MMRs. Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02sgi-gru: add definitions of x86_64 GRU MMRsJack Steiner
Add definitions for x86_64 GRU MMRs. Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02sgi-gru: exclude UV definitions on 32-bit x86Jack Steiner
Eliminate compile errors on 32-bit X86 caused by UV. Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02signals: remove 'handler' parameter to tracehook functionsOleg Nesterov
Container-init must behave like global-init to processes within the container and hence it must be immune to unhandled fatal signals from within the container (i.e SIG_DFL signals that terminate the process). But the same container-init must behave like a normal process to processes in ancestor namespaces and so if it receives the same fatal signal from a process in ancestor namespace, the signal must be processed. Implementing these semantics requires that send_signal() determine pid namespace of the sender but since signals can originate from workqueues/ interrupt-handlers, determining pid namespace of sender may not always be possible or safe. This patchset implements the design/simplified semantics suggested by Oleg Nesterov. The simplified semantics for container-init are: - container-init must never be terminated by a signal from a descendant process. - container-init must never be immune to SIGKILL from an ancestor namespace (so a process in parent namespace must always be able to terminate a descendant container). - container-init may be immune to unhandled fatal signals (like SIGUSR1) even if they are from ancestor namespace. SIGKILL/SIGSTOP are the only reliable signals to a container-init from ancestor namespace. This patch: Based on an earlier patch submitted by Oleg Nesterov and comments from Roland McGrath (http://lkml.org/lkml/2008/11/19/258). The handler parameter is currently unused in the tracehook functions. Besides, the tracehook functions are called with siglock held, so the functions can check the handler if they later need to. Removing the parameter simiplifies changes to sig_ignored() in a follow-on patch. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Daniel Lezcano <daniel.lezcano@free.fr> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02Simplify copy_thread()Alexey Dobriyan
First argument unused since 2.3.11. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02workqueue: add to_delayed_work() helper functionJean Delvare
It is a fairly common operation to have a pointer to a work and to need a pointer to the delayed work it is contained in. In particular, all delayed works which want to rearm themselves will have to do that. So it would seem fair to offer a helper function for this operation. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Greg KH <greg@kroah.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02uml: fix warnings in kernel_execveMiklos Szeredi
Fix the following warnings: arch/um/kernel/syscall.c: In function 'kernel_execve': arch/um/kernel/syscall.c:130: warning: passing argument 1 of 'um_execve' discards qualifiers from pointer target type arch/um/kernel/syscall.c:130: warning: passing argument 2 of 'um_execve' discards qualifiers from pointer target type arch/um/kernel/syscall.c:130: warning: passing argument 3 of 'um_execve' discards qualifiers from pointer target type Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Jeff Dike <jdike@addtoit.com> Cc: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02uml: fix link error from prefixing of i386 syscalls with ptregs_Miklos Szeredi
Fix the following link error: arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x11c): undefined reference to `ptregs_fork' arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x140): undefined reference to `ptregs_execve' arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x2cc): undefined reference to `ptregs_iopl' arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x2d8): undefined reference to `ptregs_vm86old' arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x2f0): undefined reference to `ptregs_sigreturn' arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x2f4): undefined reference to `ptregs_clone' arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x3ac): undefined reference to `ptregs_vm86' arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x3c8): undefined reference to `ptregs_rt_sigreturn' arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x3fc): undefined reference to `ptregs_sigaltstack' arch/um/sys-i386/built-in.o: In function `sys_call_table': (.rodata+0x40c): undefined reference to `ptregs_vfork' This was introduced by commit 253f29a4, "x86: pass in pt_regs pointer for syscalls that need it" Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Brian Gerst <brgerst@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jeff Dike <jdike@addtoit.com> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02uml: fix compile error from net_device_ops conversionMiklos Szeredi
Fix the following compile error: arch/um/drivers/net_kern.c: In function 'uml_inetaddr_event': arch/um/drivers/net_kern.c:760: error: 'struct net_device' has no member named 'open' This was introduced by commit 8bb95b39, "uml: convert network device to netdevice ops". Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: David S. Miller <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02generic debug pagealloc: build fixAkinobu Mita
This fixes a build failure with generic debug pagealloc: mm/debug-pagealloc.c: In function 'set_page_poison': mm/debug-pagealloc.c:8: error: 'struct page' has no member named 'debug_flags' mm/debug-pagealloc.c: In function 'clear_page_poison': mm/debug-pagealloc.c:13: error: 'struct page' has no member named 'debug_flags' mm/debug-pagealloc.c: In function 'page_poison': mm/debug-pagealloc.c:18: error: 'struct page' has no member named 'debug_flags' mm/debug-pagealloc.c: At top level: mm/debug-pagealloc.c:120: error: redefinition of 'kernel_map_pages' include/linux/mm.h:1278: error: previous definition of 'kernel_map_pages' was here mm/debug-pagealloc.c: In function 'kernel_map_pages': mm/debug-pagealloc.c:122: error: 'debug_pagealloc_enabled' undeclared (first use in this function) by fixing - debug_flags should be in struct page - define DEBUG_PAGEALLOC config option for all architectures Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reported-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>
2009-04-02Merge branch 'smsc911x-armplatforms' of git://github.com/steveglen/linux-2.6Russell King
2009-04-02ARM: Add SMSC911X support to Overo platform (V2)Steve Sakoman
Gumstix will soon be shipping a variant of their Summit board that includes an SMSC LAN9221 ethernet interface. This patch provides support via the smsc911x driver when enabled in kernel config. The Overo defconfig is not updated since the LAN9221 is an option not present on all systems. Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-by: Steve Glendinning <steve.glendinning@smsc.com>
2009-04-02arm: update omap_ldp defconfig to use smsc911xStanley.Miao
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
2009-04-02arm: update realview defconfigs to use smsc911xSteve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
2009-04-02arm: update pcm037 defconfig to use smsc911xSteve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-04-02arm: convert omap ldp platform to use smsc911xSteve Glendinning
from 2.6.29, smc911x isn't maintained anymore. A new driver, smsc911x, will replace it. so convert omap_ldp to use smsc911x driver. Signed-off-by: Stanley.Miao <stanley.miao@windriver.com> Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
2009-04-02arm: convert realview platform to use smsc911xSteve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
2009-04-02arm: convert pcm037 platform to use smsc911xSteve Glendinning
Updated to also specify SMSC911X_FORCE_INTERNAL_PHY, as the external phy detection hardware strap is incorrectly pulled high on this platform. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-04-02[ARM] 5444/1: ARM: Realview: Fix event-device multiplicators in localtimer.cSantosh Shilimkar
Set the "mult" to finite value in the local_timer_setup in case of CONFIG_LOCAL_TIMERS not enabled. Othewise this throws warning in the boot log because of detect zero event-device multiplicators. This can cause division-by-zero crashes. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-02x86, mm: fix misuse of debug_kmap_atomicAkinobu Mita
Impact: fix CONFIG_DEBUG_HIGHMEM=y breakage Commit 7ca43e756 ("mm: use debug_kmap_atomic") introduced some debug_kmap_atomic() calls in the wrong places. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <20090402070126.GA3951@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-02Merge branch 'linus' into x86/urgentIngo Molnar
Merge needed to go past commit 7ca43e756 (mm: use debug_kmap_atomic) and fix it. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-02Merge branch 'master' of ↵Jesper Nilsson
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask-for-cris into for-next
2009-04-02CRISv32: Remove extraneous space between -I and the path.Jesper Nilsson
Fixes build error: LD init/built-in.o LD vmlinux SYSMAP System.map OBJCOPY arch/cris/arch-v32/boot/Image Kernel: arch/cris/arch-v32/boot/Image is ready GZIP arch/cris/arch-v32/boot/compressed/piggy.gz AS arch/cris/arch-v32/boot/compressed/head.o crisv32-axis-linux-gnu-gcc: cannot specify -o with -c or -S and multiple compilations make[3]: *** [arch/cris/arch-v32/boot/compressed/head.o] Error 1 make[2]: *** [arch/cris/arch-v32/boot/compressed/vmlinux] Error 2 make[1]: *** [zImage] Error 2 make: *** [sub-make] Error 2 Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2009-04-02sh: update defconfigs.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-02cris: convert obsolete hw_interrupt_type to struct irq_chipThomas Gleixner
Impact: cleanup Convert the last remaining users to struct irq_chip. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> CC: Mikael Starvik <starvik@axis.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2009-04-02BUG to BUG_ON changesStoyan Gaydarov
Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2009-04-02sh: Kill off broken direct-mapped cache mode.Paul Mundt
Forcing direct-mapped worked on certain older 2-way set associative parts, but was always error prone on 4-way parts. As these are the norm these days, there is not much point in continuing to support this mode. Most of the folks that used direct-mapped mode generally just wanted writethrough caching in the first place.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-02parisc: move dereference_function_descriptor to process.cKyle McMartin
Commit deac93df26b20cf8438339b5935b5f5643bc30c9 fixed up printing of %pF on parisc, but added the dereference_function_descriptor prototype to module.c... this isn't a particularly wise idea as module.c might not always be compiled. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-04-02parisc: Move kernel Elf_Fdesc define to <asm/elf.h>Kyle McMartin
elf.h probably won't be exported to userspace, but play it safe and cram it in a #ifdef __KERNEL__ guard. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-04-02sh: Wire up ARCH_HAS_DEFAULT_IDLE for cpuidle.Paul Mundt
cpuidle wants ARCH_HAS_DEFAULT_IDLE defined in order to use the default idle loop. So, make it accessible and enable it for all sh machines. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-02x86: remove duplicated code with pcpu_need_numa()Yinghai Lu
Impact: clean up those code pcpu_need_numa(), should be removed. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: David Miller <davem@davemloft.net> LKML-Reference: <49D31770.9090502@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-02x86,percpu: fix inverted NUMA test in setup_pcpu_remap()Tejun Heo
setup_percpu_remap() is for NUMA machines yet it bailed out with -EINVAL if pcpu_need_numa(). Fix the inverted condition. This problem was reported by David Miller and verified by Yinhai Lu. Reported-by: David Miller <davem@davemloft.net> Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Tejun Heo <tj@kernel.org> LKML-Reference: <49D30469.8020006@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-02sh: Add a command line option for disabling I/O trapping.Paul Mundt
This adds a 'noiotrap' kernel command line option to permit disabling of I/O trapping. This is mostly useful for running on emulators where the physical device limitations are not an issue. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-02sh: Select ARCH_HIBERNATION_POSSIBLE.Paul Mundt
Now that the requisite patches have gone in, this can safely be enabled across the board for all of the 32-bit SH platforms. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-02parisc: fix build when ARCH_HAS_KMAPKyle McMartin
When we build for PA8X00, we define ARCH_HAS_KMAP, which results in the kmap_types.h include in highmem.h getting skipped... In file included from include/linux/pagemap.h:10, from include/linux/mempolicy.h:62, from init/main.c:52: include/linux/highmem.h:196: warning: 'enum km_type' declared inside parameter list include/linux/highmem.h:196: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/highmem.h:196: error: parameter 1 ('type') has incomplete type Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-04-02sh: migor: Fix up CEU use flags.Paul Mundt
Follows the same change as per ap325rxa, which was inadvertently omitted. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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