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2008-02-08CRIS v32: Update boot/rescue/head.S code.Jesper Nilsson
- Add ifdef for ETRAX_AXISFLASHMAP to avoid compiling file unless it is set. - Use assembler macros for setting up clocks. - Don't copy image, just jump to it (only works for NOR flash)
2008-02-08CRIS v32: Update boot/compressed/misc.cJesper Nilsson
- Shorten include paths to machine specific headers. - Remove fill_inbuf, not defined here. - Return __dest as value from memcpy. - Enable serial port hardware transmitter and receiver in serial_setup. - Correct baudrate divisor calculation, changed from 4800 to 115200. - Add support for Artpec-3 specific serial port setup. - Initialize pinmux for the correct serial port.
2008-02-08CRIS v32: Update compressed head.SJesper Nilsson
- Fixes for NAND and NOR flash booting. - Use assembler macros for common tasks (clocks, general io etc) - Use (EtraxFS or Artpec-3) machine specific include for dram and hardware init.
2008-02-08CRIS v32: Remove common gpio and nandflash, add mach-fs and mach-a3 as subdirs.Jesper Nilsson
Also add board_mmcspi to build if ETRAX_SPI_MMC_BOARD is set. (Generic MMC SPI implementation)
2008-02-08CRIS v32: Update boot rescue Kbuild makefile.Jesper Nilsson
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change. - Use EXTRA_CFLAGS instead of CFLAGS.
2008-02-08CRIS v32: Update boot compressed Kbuild makefile.Jesper Nilsson
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change. - Use KBUILD_CFLAGS instead of CFLAGS.
2008-02-08CRIS v32: Update boot Kbuild makefile.Jesper Nilsson
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change.
2008-02-08CRIS v32: Update traps.cJesper Nilsson
- Remove raw_prink hack, use oops_in_progress instead. - When ETRAX_WATCHDOG_NICE_DOGGY is set, loop in trap after oops dump instead of rebooting. - Break long lines to less than 80 chars. - Fix whitespace errors. - Remove unnecessary comments.
2008-02-08CRIS v10: Update and improve axisflashmap.cJesper Nilsson
- Add config to use mtd0 as whole flash device. - Fix whitespace errors. - Remove braces around single statement ifs. - Break long lines. - Remove unnecessary CVS log.
2008-02-08CRIS v10: Update rescue head.sJesper Nilsson
- Correct whitespace problems. - Add ifdef for ETRAX_AXISFLASHMAP to avoid compile error when not set.
2008-02-08CRIS v10: Update rescue Kbuild makefile.Jesper Nilsson
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change. Removes a lot of cruft. - Use EXTRA_CFLAGS instead of CFLAGS.
2008-02-08CRIS v10: Update boot/compressed Kbuild makefile.Jesper Nilsson
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change. - Use EXTRA_CFLAGS instead of CFLAGS.
2008-02-08CRIS v10: Update boot Kbuild makefile.Jesper Nilsson
- Remove old specific targets, use more generic ones instead.
2008-02-08CRIS: Update main Kbuild makefile.Jesper Nilsson
- Remove old and non-generic targets, use generic ones instead. - Add sub-arch as mach-fs or mach-a3 for EtraxFS and Artpec-3 respectively. - Add links to sub-arch directories, and erase before trying to create them. - Include from sub-arch specific include directory "mach". - Add files to be cleaned in CLEAN_FILES instead of as archclean target.
2008-02-08CRIS v32: Update and improve axisflashmapJesper Nilsson
- Use default partition table when no partition is found (for initial tests) - Add config ETRAX_AXISFLASHMAP_MTD0WHOLE to allow whole flash as mtd0. - Add config for VCS simulator connection.
2008-02-08CRIS v32: New version of I2C driver.Jesper Nilsson
- Add i2c_write and i2c_read as functions. - Use spinlocks for critical regions. - Add config item to set I2C data and clock port. - Put unneeded testcode inside #if 0. - Remove CVS id tag.
2008-02-08CRIS v32: Fixup kernel Makefile.Jesper Nilsson
- Remove CRISv32 common arbiter, dma, io and pinmux files, they are now defined in machine dependent directories. - Add cache and cacheflush files for working around cache problems in CRISv32 chips.
2008-02-08CRIS v32: Update entry.S to working order.Jesper Nilsson
- Remove oldset parameter. - Utilise delay-slot for parameter moving. - Add kernel_execve as break 13. - Add new kernel syscalls.
2008-02-08CRIS v32: Whitespace and formatting changes for kernel/ptrace.cJesper Nilsson
2008-02-08CRIS: Minor generic kernel/traps.c changes.Jesper Nilsson
- Collect extern declarations at top of file. - Change raw_printk to printk, use oops_in_progress instead. - Fix formatting and whitespace. - Allow the watchdog to be disabled during oops.
2008-02-08CRIS: Minor fixes to mm/fault.cJesper Nilsson
- Only disallow oops if we're in_interrupt context (was in_atomic before) - Use the generic oops_in_progress instead of the raw_printk hack. - Fix whitespace/formatting. - Remove CVS log entries.
2008-02-08CRIS: Remove unnecessary CVS log from cris/mm/init.cJesper Nilsson
2008-02-08CRIS v32: Update synchronous serial driver.Jesper Nilsson
Now uses a DMA descriptor ring, which should avoid any unnecessary pauses in the streams.
2008-02-08CRIS v32: Add L2 cache initialization code.Jesper Nilsson
2008-02-08CRIS v32: Add hardware dependent include files and defconfigs for ETRAX FS ↵Jesper Nilsson
and ARTPEC-3 chips. The header files describe the hardware registers available in both these chips, note that most of this documentation is automatically generated from the hardware implementation.
2008-02-08CRIS v32: Add new machine dependent files for Etrax-FS and Artpec-3.Jesper Nilsson
The two chips are somewhat different, and needs different handling. Adds handing of the dma, dram initialization, hardware settings, io, memory arbiter and pinmux Also moves the dma, dram initialization and io from CRIS v32 common files.
2008-02-08CRIS v32: Add new driver files for Etrax-FSJesper Nilsson
Adds gpio and nandflash handling for Etrax-FS
2008-02-08CRIS v32: Add new driver files for Artpec-3.Jesper Nilsson
Adds gpio and nandflash handling for Artpec-3.
2008-02-08CRIS: Rearrange Kconfigs for v10 and v32 to allow compilation without warnings.Jesper Nilsson
- Remove some unneeded configs and add some new ones. - Merge common config items to common file instead of duplicating them. - Pull in standard Kconfig.preempt. - Remove some unneeded Kconfigs for subsystems not (yet) available on CRIS (md, scsi, ieee1394, i2o, isdn, telephony, media, pcmcia, pci) - Rename CRISv32 config items which had different types from CRISv10. (ETRAX_LED2G, ETRAX_LED2R, ETRAX_LED3G, ETRAX_LED3R, ETRAX_I2C_DATA_PORT, ETRAX_I2C_CLK_PORT)
2008-02-07Merge branch 'slub-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm * 'slub-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm: SLUB: fix checkpatch warnings Use non atomic unlock SLUB: Support for performance statistics SLUB: Alternate fast paths using cmpxchg_local SLUB: Use unique end pointer for each slab page. SLUB: Deal with annoying gcc warning on kfree()
2008-02-07SLUB: Alternate fast paths using cmpxchg_localChristoph Lameter
Provide an alternate implementation of the SLUB fast paths for alloc and free using cmpxchg_local. The cmpxchg_local fast path is selected for arches that have CONFIG_FAST_CMPXCHG_LOCAL set. An arch should only set CONFIG_FAST_CMPXCHG_LOCAL if the cmpxchg_local is faster than an interrupt enable/disable sequence. This is known to be true for both x86 platforms so set FAST_CMPXCHG_LOCAL for both arches. Currently another requirement for the fastpath is that the kernel is compiled without preemption. The restriction will go away with the introduction of a new per cpu allocator and new per cpu operations. The advantages of a cmpxchg_local based fast path are: 1. Potentially lower cycle count (30%-60% faster) 2. There is no need to disable and enable interrupts on the fast path. Currently interrupts have to be disabled and enabled on every slab operation. This is likely avoiding a significant percentage of interrupt off / on sequences in the kernel. 3. The disposal of freed slabs can occur with interrupts enabled. The alternate path is realized using #ifdef's. Several attempts to do the same with macros and inline functions resulted in a mess (in particular due to the strange way that local_interrupt_save() handles its argument and due to the need to define macros/functions that sometimes disable interrupts and sometimes do something else). [clameter: Stripped preempt bits and disabled fastpath if preempt is enabled] Signed-off-by: Christoph Lameter <clameter@sgi.com> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2008-02-07Fix compilation of powerpc asm-offsets.c with old gccTony Breeds
Commit ad7f71674ad7c3c4467e48f6ab9e85516dae2720 ("[POWERPC] Use a sensible default for clock_getres() in the VDSO") corrected the clock resolution reported by the VDSO clock_getres() but introduced another problem in that older versions of gcc (gcc-4.0 and earlier) fail to compile the new code in arch/powerpc/kernel/asm-offsets.c. This fixes it by introducing a new MONOTONIC_RES_NSEC define in the generic code which is equivalent to KTIME_MONOTONIC_RES but is just an integer constant, not a ktime union. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07m68k: correct setting of struct user.u_ar0Geert Uytterhoeven
Commit 6e16d89bcd668a95eb22add24c02d80890232b66 ("Sanitize the type of struct user.u_ar0") forgot to change the m68k setting code, causing the following compiler warning: arch/m68k/kernel/process.c:338: warning: assignment makes integer from pointer without a cast Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (34 commits) Input: i8042 - non-x86 build fix Input: pxa27x_keypad - also enable on PXA3xx Input: pxa27x_keypad - add debounce_interval to the keypad platform data Input: pxa27x_keypad - use device resources for I/O memory mapping and IRQ Input: pxa27x_keypad - enable rotary encoders and direct keys Input: pxa27x_keypad - introduce pxa27x_keypad_config() Input: pxa27x_keypad - introduce driver structure and use KEY() to define matrix keys Input: pxa27x_keypad - remove pin configuration from the driver Input: pxa27x_keypad - rename the driver (was pxa27x_keyboard) Input: constify function pointer tables (seq_operations) Input: i8042 - add Fujitsu-Siemens Amilo Pro 2010 to nomux list Input: i8042 - enable DMI quirks on x86-64 Input: i8042 - add Dritek quirk for Acer Aspire 9110 Input: add input event to APM event bridge Input: mousedev - use BIT_MASK instead of BIT Input: remove duplicate includes Input: remove cdev from input_dev structure Input: remove duplicated headers in drivers/char/keyboard.c Input: i8042 - add Dritek keyboard extension quirk Input: add Tosa keyboard driver ...
2008-02-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC32]: Use regsets in arch_ptrace(). [SPARC64]: Use regsets in arch_ptrace(). [SPARC32]: Use regsets for ELF core dumping. [SPARC64]: Use regsets for ELF core dumping. [SPARC64]: Remove unintentional ptrace debugging messages. [SPARC]: Move over to arch_ptrace(). [SPARC]: Remove PTRACE_SUN* handling. [SPARC]: Kill DEBUG_PTRACE code. [SPARC32]: Add user regset support. [SPARC64]: Add user regsets. [SPARC64]: Fix booting on non-zero cpu.
2008-02-07Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (112 commits) ACPI: fix build warning Revert "cpuidle: build fix for non-x86" ACPI: update intrd DSDT override console messages ACPI: update DSDT override documentation ACPI: Add "acpi_no_initrd_override" kernel parameter ACPI: its a directory not a folder.... ACPI: misc cleanups ACPI: add missing prink prefix strings ACPI: cleanup acpi.h ACPICA: fix CONFIG_ACPI_DEBUG_FUNC_TRACE build ACPI: video: Ignore ACPI video devices that aren't present in hardware ACPI: video: reset brightness on resume ACPI: video: call ACPI notifier chain for ACPI video notifications ACPI: create notifier chain to get hotkey events to graphics driver ACPI: video: delete unused display switch on hotkey event code ACPI: video: create "brightness_switch_enabled" modparam cpuidle: Add a poll_idle method ACPI: cpuidle: Support C1 idle time accounting ACPI: enable MWAIT for C1 idle ACPI: idle: Fix acpi_safe_halt usages and interrupt enabling/disabling ...
2008-02-07Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-ledsLinus Torvalds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds: leds: Add HP Jornada 6xx driver leds: Remove the now uneeded ixp4xx driver leds: Add power LED to the wrap driver leds: Fix led-gpio active_low default brightness leds: hw acceleration for Clevo mail LED driver leds: Add support for hardware accelerated LED flashing leds: Standardise LED naming scheme leds: Add clevo notebook LED driver
2008-02-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Add missing printk levels to e_powersaver [CPUFREQ] Fix sparse warning in powernow-k8 [CPUFREQ] Support Model D parts and newer in e_powersaver [CPUFREQ] Powernow-k8: Update to support the latest Turion processors [CPUFREQ] fix configuration help message [CPUFREQ] powernow-k8 print pstate instead of fid/did for family 10h [CPUFREQ] Eliminate cpufreq_userspace scaling_setspeed deadlock [CPUFREQ] gx-suspmod.c: use boot_cpu_data instead of current_cpu_data [CPUFREQ] fix incorrect comment on show_available_freqs() in freq_table.c [CPUFREQ] drivers/cpufreq: Add missing "space" [CPUFREQ] arch/x86: Add missing "space" [CPUFREQ] Remove pointless Kconfig dependancy
2008-02-07Merge branch 'for-2.6.25' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (69 commits) [POWERPC] Add SPE registers to core dumps [POWERPC] Use regset code for compat PTRACE_*REGS* calls [POWERPC] Use generic compat_sys_ptrace [POWERPC] Use generic compat_ptrace_request [POWERPC] Use generic ptrace peekdata/pokedata [POWERPC] Use regset code for PTRACE_*REGS* requests [POWERPC] Switch to generic compat_binfmt_elf code [POWERPC] Switch to using user_regset-based core dumps [POWERPC] Add user_regset compat support [POWERPC] Add user_regset_view definitions [POWERPC] Use user_regset accessors for GPRs [POWERPC] ptrace accessors for special regs MSR and TRAP [POWERPC] Use user_regset accessors for SPE regs [POWERPC] Use user_regset accessors for altivec regs [POWERPC] Use user_regset accessors for FP regs [POWERPC] mpc52xx: fix compile error introduce when rebasing patch [POWERPC] 4xx: PCIe indirect DCR spinlock fix. [POWERPC] Add missing native dcr dcr_ind_lock spinlock [POWERPC] 4xx: Fix offset value on Warp board [POWERPC] 4xx: Add 440EPx Sequoia ehci dts entry ...
2008-02-07I8K: add i8k driver to the x86_64 KconfigBradley Smith
Adds i8k driver to the x86_64 Kconfig. Signed-off-by: Bradley Smith <bradjsmith@btinternet.com> Cc: Frank Sorenson <frank@tuxrocks.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07m32r: build fix of arch/m32r/kernel/smpboot.cMathieu Desnoyers
This patch is for Mathieu Desnoyers's include/asm-m32r/local.h. Applying the new include/asm-m32r/local.h, inclusion of linux/sched.h is needed to fix a build error of arch/m32r/kernel/smpboot.c. <-- snip --> ... CC arch/m32r/kernel/smpboot.o /project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c: In function 'do_boot_cpu': /project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:279: error: implicit declaration of function 'fork_idle' /project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:279: warning: assignment makes pointer from integer without a cast /project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:283: error: dereferencing pointer to incomplete type /project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:289: error: dereferencing pointer to incomplete type /project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:290: error: implicit declaration of function 'task_thread_info' /project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:290: error: invalid type argument of '->' /project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c: In function 'start_secondary': /project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:429: error: implicit declaration of function 'cpu_init' make[2]: *** [arch/m32r/kernel/smpboot.o] Error 1 <-- snip --> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07Sanitize the type of struct user.u_ar0H. Peter Anvin
struct user.u_ar0 is defined to contain a pointer offset on all architectures in which it is defined (all architectures which define an a.out format except SPARC.) However, it has a pointer type in the headers, which is pointless -- <asm/user.h> is not exported to userspace, and it just makes the code messy. Redefine the field as "unsigned long" (which is the same size as a pointer on all Linux architectures) and change the setting code to user offsetof() instead of hand-coded arithmetic. Cc: Linux Arch Mailing List <linux-arch@vger.kernel.org> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Håvard Skinnemoen <hskinnemoen@atmel.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Luck <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07vmcoreinfo: fix the configuration dependenciesKen'ichi Ohmichi
This patch fixes the configuration dependencies in the vmcoreinfo data. i386's "node_data" is defined in arch/x86/mm/discontig_32.c, and x86_64's one is defined in arch/x86/mm/numa_64.c. They depend on CONFIG_NUMA: arch/x86/mm/Makefile_32:7 obj-$(CONFIG_NUMA) += discontig_32.o arch/x86/mm/Makefile_64:7 obj-$(CONFIG_NUMA) += numa_64.o ia64's "pgdat_list" is defined in arch/ia64/mm/discontig.c, and it depends on CONFIG_DISCONTIGMEM and CONFIG_SPARSEMEM: arch/ia64/mm/Makefile:9-10 obj-$(CONFIG_DISCONTIGMEM) += discontig.o obj-$(CONFIG_SPARSEMEM) += discontig.o ia64's "node_memblk" is defined in arch/ia64/mm/numa.c, and it depends on CONFIG_NUMA: arch/ia64/mm/Makefile:8 obj-$(CONFIG_NUMA) += numa.o Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Acked-by: Simon Horman <horms@verge.net.au> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07vmcoreinfo: rename vmcoreinfo's macros returning the sizeKen'ichi Ohmichi
This patchset is for the vmcoreinfo data. The vmcoreinfo data has the minimum debugging information only for dump filtering. makedumpfile (dump filtering command) gets it to distinguish unnecessary pages, and makedumpfile creates a small dumpfile. This patch: VMCOREINFO_SIZE() should be renamed VMCOREINFO_STRUCT_SIZE() since it's always returning the size of the struct with a given name. This change would allow VMCOREINFO_TYPEDEF_SIZE() to simply become VMCOREINFO_SIZE() since it need not be used exclusively for typedefs. This discussion is the following: http://www.ussg.iu.edu/hypermail/linux/kernel/0709.3/0582.html Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Simon Horman <horms@verge.net.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07Use BOOTMEM_EXCLUSIVE for kdumpBernhard Walle
Use the BOOTMEM_EXCLUSIVE, introduced in the previous patch, to avoid conflicts while reserving the memory for the kdump capture kernel (crashkernel=). Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: <linux-arch@vger.kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07Introduce flags for reserve_bootmem()Bernhard Walle
This patchset adds a flags variable to reserve_bootmem() and uses the BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions between crashkernel area and already used memory. This patch: Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE. If that flag is set, the function returns with -EBUSY if the memory already has been reserved in the past. This is to avoid conflicts. Because that code runs before SMP initialisation, there's no race condition inside reserve_bootmem_core(). [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix powerpc build] Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: <linux-arch@vger.kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07[SPARC32]: Use regsets in arch_ptrace().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07[SPARC64]: Use regsets in arch_ptrace().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07[SPARC64]: Use regsets for ELF core dumping.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07[SPARC64]: Remove unintentional ptrace debugging messages.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>