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2009-07-17Fix ia64 compilation IS_ERR and PTE_ERR errors.Fenghua Yu
When building ia64 kernel with CONFIG_XEN_SYS_HYPERVISOR, compiler reports errors: drivers/xen/sys-hypervisor.c: In function ‘uuid_show’: drivers/xen/sys-hypervisor.c:125: error: implicit declaration of function ‘IS_ERR’ drivers/xen/sys-hypervisor.c:126: error: implicit declaration of function ‘PTR_ERR’ This patch fixes the errors. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Isaku Yamahata <yamahata@valinux.co.jp>
2009-07-15powerpc: Fix another bug in move of altivec code to vector.SAndreas Schwab
When moving load_up_altivec to vector.S a typo in a comment caused a thinko setting the wrong variable. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-15powerpc: Fix booke user_disable_single_step()Dave Kleikamp
On booke processors, gdb is seeing spurious SIGTRAPs when setting a watchpoint. user_disable_single_step() simply quits when the DAC is non-zero. It should be clearing the DBCR0_IC and DBCR0_BT bits from the dbcr0 register and TIF_SINGLESTEP from the thread flag. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-14Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/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: Fix warning in pvclock.c x86, apic: Fix false positive section mismatch in numaq_32.c x86: Fix false positive section mismatch in es7000_32.c x86: Remove spurious printk level from segfault message
2009-07-14x86: Fix warning in pvclock.cDave Jones
when building 32-bit, I see this .. arch/x86/kernel/pvclock.c:63:7: warning: "__x86_64__" is not defined Signed-off-by: Dave Jones <davej@redhat.com> LKML-Reference: <20090713201437.GA12165@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-07-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: wm97xx_batery: replace driver_data with dev_get_drvdata() omap: video: remove direct access of driver_data Sound: remove direct access of driver_data driver model: fix show/store prototypes in doc. Firmware: firmware_class, fix lock imbalance Driver Core: remove BUS_ID_SIZE sparc: remove driver-core BUS_ID_SIZE partitions: fix broken uevent_suppress conversion devres: WARN() and return, don't crash on device_del() of uninitialized device
2009-07-13mn10300: remove duplicated #includeHuang Weiyi
Remove duplicated #include('s) in arch/mn10300/kernel/sys_mn10300.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-13x86, apic: Fix false positive section mismatch in numaq_32.cRakib Mullick
The variable apic_numaq placed in noninit section references the function wakeup_secondary_cpu_via_nmi(), which is in __cpuinit section. Thus causes a section mismatch warning. To avoid such mismatch we mark apic_numaq as __refdata. We were warned by the following warning: WARNING: arch/x86/kernel/built-in.o(.data+0x932c): Section mismatch in reference from the variable apic_numaq to the function .cpuinit.text:wakeup_secondary_cpu_via_nmi() Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> LKML-Reference: <b9df5fa10907120407p6b4f67dtf4d563155488188a@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-13x86: Fix false positive section mismatch in es7000_32.cRakib Mullick
The variable apic_es7000_cluster references the function __cpuinit wakeup_secondary_cpu_via_mip() from a noninit section. So we've been warned by the following warning. To avoid possible collision between init/noninit, its best to mark the variable as __refdata. We were warned by the following warning: LD arch/x86/kernel/apic/built-in.o WARNING: arch/x86/kernel/apic/built-in.o(.data+0x198c): Section mismatch in reference from the variable apic_es7000_cluster to the function .cpuinit.text:wakeup_secondary_cpu_via_mip() Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> LKML-Reference: <b9df5fa10907120404k6279a10ch5e9682432272706f@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-12sparc: remove driver-core BUS_ID_SIZEKay Sievers
The name size limit is gone from the driver-core, the BUS_ID_SIZE value will be removed. Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12headers: smp_lock.h reduxAlexey Dobriyan
* Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-11x86: Remove spurious printk level from segfault messageRoland Dreier
Since commit 5fd29d6c ("printk: clean up handling of log-levels and newlines"), the kernel logs segfaults like: <6>gnome-power-man[24509]: segfault at 20 ip 00007f9d4950465a sp 00007fffbb50fc70 error 4 in libgobject-2.0.so.0.2103.0[7f9d494f7000+45000] with the extra "<6>" being KERN_INFO. This happens because the printk in show_signal_msg() started with KERN_CONT and then used "%s" to pass in the real level; and KERN_CONT is no longer an empty string, and printk only pays attention to the level at the very beginning of the format string. Therefore, remove the KERN_CONT from this printk, since it is now actively causing problems (and never really made any sense). Signed-off-by: Roland Dreier <roland@digitalvampire.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <874otjitkj.fsf@shaolin.home.digitalvampire.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-10Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] define KTIME_SCALAR for 32-bit s390 [S390] add generic atomic64 support for 31 bit [S390] improve suspend/resume error messages [S390] set SCHED_OMIT_FRAME_POINTER for s390 [S390] add __ucmpdi2() helper function [S390] perf_counter build fix [S390] shutdown actions: save/return rc from init function [S390] dasd: correct debugfeature sense dump [S390] udelay: disable lockdep to avoid false positives [S390] monreader: fix dev_set_drvdata conversion [S390] sclp: fix compile error for !SCLP_CONSOLE
2009-07-10Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: cfq-iosched: reset oom_cfqq in cfq_set_request() block: fix sg SG_DXFER_TO_FROM_DEV regression block: call blk_scsi_ioctl_init() Fix congestion_wait() sync/async vs read/write confusion
2009-07-10Merge branch 'core-fixes-for-linus-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: dma-debug: Fix the overlap() function to be correct and readable oprofile: reset bt_lost_no_mapping with other stats x86/oprofile: rename kernel parameter for architectural perfmon to arch_perfmon signals: declare sys_rt_tgsigqueueinfo in syscalls.h rcu: Mark Hierarchical RCU no longer experimental dma-debug: Put all hash-chain locks into the same lock class dma-debug: fix off-by-one error in overlap function
2009-07-10Merge branch 'perfcounters-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits) perf report: Add "Fractal" mode output - support callchains with relative overhead rate perf_counter tools: callchains: Manage the cumul hits on the fly perf report: Change default callchain parameters perf report: Use a modifiable string for default callchain options perf report: Warn on callchain output request from non-callchain file x86: atomic64: Inline atomic64_read() again x86: atomic64: Clean up atomic64_sub_and_test() and atomic64_add_negative() x86: atomic64: Improve atomic64_xchg() x86: atomic64: Export APIs to modules x86: atomic64: Improve atomic64_read() x86: atomic64: Code atomic(64)_read and atomic(64)_set in C not CPP x86: atomic64: Fix unclean type use in atomic64_xchg() x86: atomic64: Make atomic_read() type-safe x86: atomic64: Reduce size of functions x86: atomic64: Improve atomic64_add_return() x86: atomic64: Improve cmpxchg8b() x86: atomic64: Improve atomic64_read() x86: atomic64: Move the 32-bit atomic64_t implementation to a .c file x86: atomic64: The atomic64_t data type should be 8 bytes aligned on 32-bit too perf report: Annotate variable initialization ...
2009-07-10sched: INIT_PREEMPT_COUNTPeter Zijlstra
Pull the initial preempt_count value into a single definition site. Maintainers for: alpha, ia64 and m68k, please have a look, your arch code is funny. The header magic is a bit odd, but similar to the KERNEL_DS one, CPP waits with expanding these macros until the INIT_THREAD_INFO macro itself is expanded, which is in arch/*/kernel/init_task.c where we've already included sched.h so we're good. Cc: tony.luck@intel.com Cc: rth@twiddle.net Cc: geert@linux-m68k.org Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10Fix congestion_wait() sync/async vs read/write confusionJens Axboe
Commit 1faa16d22877f4839bd433547d770c676d1d964c accidentally broke the bdi congestion wait queue logic, causing us to wait on congestion for WRITE (== 1) when we really wanted BLK_RW_ASYNC (== 0) instead. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-07-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits) cxgb3: Fix crash caused by stashing wrong netdev_queue ixgbe: Fix coexistence of FCoE and Flow Director in 82599 memory barrier: adding smp_mb__after_lock net: adding memory barrier to the poll and receive callbacks netpoll: Fix carrier detection for drivers that are using phylib includecheck fix: include/linux, rfkill.h p54: tx refused but queue active Atheros Kconfig needs to be dependent on WLAN_80211 mac80211: fix docbook mac80211_hwsim: avoid NULL access ssb: Add support for 4318E b43: Add support for 4318E zd1211rw: adding SONY IFU-WLM2 (054c:0257) as a zd1211b device zd1211rw: 07b8:6001 is a ZD1211B r6040: bump driver version to 0.24 and date to 08 July 2009 r6040: restore MIER register correctly when IRQ line is shared ipv4: Fix fib_trie rebalancing, part 4 (root thresholds) davinci_emac: fix kernel oops when changing MAC address while interface is down igb: set lan id prior to configuring phy mac80211: minstrel: avoid accessing negative indices in rix_to_ndx() ...
2009-07-10x86/oprofile: rename kernel parameter for architectural perfmon to arch_perfmonRobert Richter
The short name of the achitecture is 'arch_perfmon'. This patch changes the kernel parameter to use this name. Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-09memory barrier: adding smp_mb__after_lockJiri Olsa
Adding smp_mb__after_lock define to be used as a smp_mb call after a lock. Making it nop for x86, since {read|write|spin}_lock() on x86 are full memory barriers. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-08x86: don't clear nodes_states[N_NORMAL_MEMORY] when numa is not compiled inYinghai Lu
Alex found that specjbb2005 still can not run with hugepages on an x86-64 machine. This only happens when numa is not compiled in. The root cause: node_set_state will not set it back for us in that case, so don't clear that when numa is not select in config [ v2: use node_clear_state instead ] Reported-and-Tested-by: Alex Shi <alex.shi@intel.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08Remove multiple KERN_ prefixes from printk formatsJoe Perches
Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up handling of log-levels and newlines") changed printk semantics. printk lines with multiple KERN_<level> prefixes are no longer emitted as before the patch. <level> is now included in the output on each additional use. Remove all uses of multiple KERN_<level>s in formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Powernow-k8: support family 0xf with 2 low p-states [CPUFREQ] fix (utter) cpufreq_add_dev mess [CPUFREQ] Cleanup locking in conservative governor [CPUFREQ] Cleanup locking in ondemand governor [CPUFREQ] Mark policy_rwsem as going static in cpufreq.c wont be exported [CPUFREQ] Eliminate the recent lockdep warnings in cpufreq
2009-07-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM: Clear -EAGAIN in dpm_prepare x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR
2009-07-08Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Don't use alloc_bootmem() in init_IRQ() path powerpc: Fix spin_event_timeout() to be robust over context switches powerpc: Use pr_devel() in do_dcache_icache_coherency() powerpc/cell: Use pr_devel() in axon_msi.c powerpc: Use pr_devel() in arch/powerpc/mm/gup.c powerpc: Cleanup & use pr_devel() in arch/powerpc/mm/slb.c powerpc/perf_counter: Remove duplicated #include powerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.c powerpc/pseries: Use pr_devel() in xics.c powerpc: Remove unnecessary semicolons powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routines powerpc/44x: Fix build error with -Werror for Warp platform powerpc/4xx: Have Warp take advantage of GPIO LEDs default-state = keep powerpc/44x: Update Warp defconfig
2009-07-08Merge branch 'sh/for-2.6.31' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: serial: sh-sci: fix sci interrupt handler video: hitfb: Move over to dev_pm_ops. video: hitfb: Convert to framebuffer_alloc(). video: sh_mobile_lcdcfb: Convert to framebuffer_alloc(). sh: add r8a66597 usb0 host to the se7724 board usb: allow sh7724 to enable on-chip r8a66597 sh-sci: update receive error handling for muxed irqs sh: define PERF_COUNTER_INDEX_OFFSET.
2009-07-08x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTORPeter Chubb
Patch 08687aec71bc9134fe336e561f6did877bacf74fc0a (x86: unify power/cpu_(32|64).c) renamed cpu_32.c to cpu.c, but did not update the special compilation flags for the file for the new name. This patch fixes the compilation flags, and therefore fixes resume from suspend on my Acer Aspire One. [rjw: The regression from 2.6.30 fixed by this patch is tracked as http://bugzilla.kernel.org/show_bug.cgi?id=13661] Signed-off-by: Peter Chubb <peterc@nicta.com.au> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-07-08powerpc: Don't use alloc_bootmem() in init_IRQ() pathAnton Vorontsov
This patch fixes various badnesses like this for all interrupt controllers: ------------[ cut here ]------------ Badness at c04db9dc [verbose debug info unavailable] NIP: c04db9dc LR: c04db9ac CTR: 00000000 REGS: c053de30 TRAP: 0700 Not tainted (2.6.31-rc1-00432-ge69b2b5-dirty) MSR: 00021000 <ME,CE> CR: 22020084 XER: 00000000 TASK = c0500480[0] 'swapper' THREAD: c053c000 GPR00: 00000001 c053dee0 c0500480 00000000 00000050 00000020 3fffffff 00000000 GPR08: 00000001 c0540000 e0080080 00000000 22000084 64183600 3ff8f800 00000000 GPR16: 841b0240 449a0303 00000000 00000000 00000000 00000000 00000000 c04f5bf4 GPR24: 00000000 00000000 00000000 00000050 00000020 00000000 3fffffff 00000050 NIP [c04db9dc] alloc_arch_preferred_bootmem+0x48/0x74 LR [c04db9ac] alloc_arch_preferred_bootmem+0x18/0x74 Call Trace: [c053dee0] [c000a5a4] __of_address_to_resource+0x44/0xd0 (unreliable) [c053def0] [c04dba58] ___alloc_bootmem_nopanic+0x50/0x108 [c053df20] [c04dbb28] ___alloc_bootmem+0x18/0x50 [c053df30] [c04d5de0] qe_ic_init+0x5c/0x1b0 [c053df70] [c04d77b0] mpc85xx_mds_pic_init+0xb8/0x10c [c053dfb0] [c04cf374] init_IRQ+0x28/0x3c p.s. commit 85355bb272db31a3f2dd99d547eef794805e1319 ("powerpc: Fix mpic alloc warning") missed some alloc_bootmem() instances, this is now fixed. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Fix spin_event_timeout() to be robust over context switchesGrant Likely
Current implementation of spin_event_timeout can be interrupted by an IRQ or context switch after testing the condition, but before checking the timeout. This can cause the loop to report a timeout when the condition actually became true in the middle. This patch adds one final check of the condition upon exit of the loop if the last test of the condition was still false. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Use pr_devel() in do_dcache_icache_coherency()Michael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 2036 368 8 2412 96c arch/powerpc/mm/pgtable.o size after: text data bss dec hex filename 1677 248 8 1933 78d arch/powerpc/mm/pgtable.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc/cell: Use pr_devel() in axon_msi.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 7083 1616 0 8699 21fb arch/powerpc/../axon_msi.o size after: text data bss dec hex filename 5772 1208 0 6980 1b44 arch/powerpc/../axon_msi.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Use pr_devel() in arch/powerpc/mm/gup.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 3252 384 0 3636 e34 arch/powerpc/mm/gup.o size after: text data bss dec hex filename 2576 96 0 2672 a70 arch/powerpc/mm/gup.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Cleanup & use pr_devel() in arch/powerpc/mm/slb.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 3261 416 4 3681 e61 arch/powerpc/mm/slb.o size after: text data bss dec hex filename 2861 248 4 3113 c29 arch/powerpc/mm/slb.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc/perf_counter: Remove duplicated #includeHuang Weiyi
Remove duplicated #include('s) in arch/powerpc/kernel/mpc7450-pmu.c arch/powerpc/kernel/ppc970-pmu.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 1508 48 28 1584 630 powerpc/mm/mmu_context_nohash.o size after: text data bss dec hex filename 1088 0 28 1116 45c powerpc/mm/mmu_context_nohash.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc/pseries: Use pr_devel() in xics.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 7720 5488 296 13504 34c0 platforms/pseries/xics.o size after: text data bss dec hex filename 7535 5456 296 13287 33e7 platforms/pseries/xics.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Remove unnecessary semicolonsJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routinesMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. In particular, pSeries_lpar_hpte_insert() goes from 185 instructions to 77 instructions as a result of this patch. Luckily that code isn't called very often ... With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 7284 1552 296 9132 23ac platforms/pseries/lpar.o size after: text data bss dec hex filename 5806 1096 296 7198 1c1e platforms/pseries/lpar.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08Merge commit 'jwb/merge' into mergeBenjamin Herrenschmidt
2009-07-07[S390] define KTIME_SCALAR for 32-bit s390Martin Schwidefsky
32-bit s390 has efficient support for 64/32-bit conversions, define KTIME_SCALAR to enable the use of the plain scalar nanosecond based representation of ktime. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] add generic atomic64 support for 31 bitHeiko Carstens
Performance counters need 64 bit atomic operations. To keep the patch small we use the simple generic atomic64_t implementation. The native implementation follows with the next kernel. Fixes this build bug: In file included from kernel/sched.c:42: include/linux/perf_counter.h:427: error: expected specifier-qualifier-list before 'atomic64_t' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] set SCHED_OMIT_FRAME_POINTER for s390Martin Schwidefsky
The frame pointer is useless for s390 in the sched.c code. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] add __ucmpdi2() helper functionHeiko Carstens
Provide __ucmpdi2() helper function on 31 bit so we don't run again and again in compile errors like this one: kernel/built-in.o: In function `T.689': perf_counter.c:(.text+0x56c86): undefined reference to `__ucmpdi2' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] perf_counter build fixHeiko Carstens
Add PERF_COUNTER_INDEX_OFFSET define to fix this build bug: kernel/perf_counter.c: In function 'perf_counter_index': kernel/perf_counter.c:1889: error: 'PERF_COUNTER_INDEX_OFFSET' undeclared Same fix as for FRV since s390 doesn't support hw counters. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] shutdown actions: save/return rc from init functionFrank Munzert
We always returned -EINVAL when setting of a shutdown action failed. This was misleading, if for example the hardware did not support the shutdown action. Now we save each shutdown action's init return code and return it when the action is being set. Signed-off-by: Frank Munzert <munzert@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] udelay: disable lockdep to avoid false positivesHeiko Carstens
Our udelay implementation enables interrupts to receive a special timer interrupt regardless of the context it is called from. This might lead to false positive lockdep reports. Since lockdep isn't aware of the fact that only a single interrupt source is enabled it warns about possible deadlocks that in reality won't happen, like the one below. To fix this disable lockdep before enabling interrupts. [ 254.040888] ================================= [ 254.040904] [ INFO: inconsistent lock state ] [ 254.040910] 2.6.30 #9 [ 254.040914] --------------------------------- [ 254.040920] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage. [ 254.040927] swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 254.040934] (sch->lock){?.-...}, at: [<00000000002e4778>] ccw_device_timeout+0x48/0x2f0 [ 254.040961] {IN-HARDIRQ-W} state was registered at: [ 254.040969] [<0000000000096f74>] __lock_acquire+0x9d4/0x188c [ 254.040985] [<0000000000097f68>] lock_acquire+0x13c/0x16c [ 254.040998] [<00000000004527e0>] _spin_lock+0x74/0xb8 [ 254.041016] [<0000000000457eb2>] do_IRQ+0xde/0x208 [ 254.041031] [<000000000002d190>] io_return+0x0/0x8 [ 254.041049] [<0000000000029faa>] vtime_stop_cpu+0xbe/0x114 [ 254.041066] irq event stamp: 259629 [ 254.041076] hardirqs last enabled at (259628): [<000000000045238e>] _spin_unlock_irq+0x5e/0x9c [ 254.041095] hardirqs last disabled at (259629): [<000000000045292e>] _spin_lock_irq+0x4a/0xc4 [ 254.041126] softirqs last enabled at (259614): [<000000000006500e>] __do_softirq+0x296/0x2b0 [ 254.041137] softirqs last disabled at (259619): [<0000000000024cf6>] do_softirq+0x102/0x108 [ 254.041147] [ 254.041148] other info that might help us debug this: [ 254.041153] 2 locks held by swapper/0: [ 254.041157] #0: (&priv->timer){+.-...}, at: [<000000000006bf9a>] run_timer_softirq+0x19a/0x340 [ 254.041170] #1: (sch->lock){?.-...}, at: [<00000000002e4778>] ccw_device_timeout+0x48/0x2f0 [ 254.041182] [ 254.041310] Call Trace: [ 254.041313] ([<00000000000174fc>] show_trace+0x16c/0x170) [ 254.041321] [<0000000000017578>] show_stack+0x78/0x104 [ 254.041327] [<000000000044d0ca>] dump_stack+0xc6/0xd4 [ 254.041342] [<00000000000949b4>] print_usage_bug+0x1c8/0x1fc [ 254.041353] [<0000000000094e8a>] mark_lock+0x4a2/0x670 [ 254.041364] [<00000000000950e2>] mark_held_locks+0x8a/0xb4 [ 254.041375] [<0000000000095398>] trace_hardirqs_on_caller+0x74/0x1ac [ 254.041388] [<00000000000954fa>] trace_hardirqs_on+0x2a/0x38 [ 254.041402] [<000000000025f1ec>] __udelay_disabled+0xac/0xfc [ 254.041419] [<000000000025f432>] __udelay+0x12a/0x148 [ 254.041433] [<00000000002d64d8>] cio_commit_config+0x170/0x290 [ 254.041451] [<00000000002d6978>] cio_disable_subchannel+0x120/0x1cc [ 254.041468] [<00000000002e32a4>] ccw_device_recog_done+0x54/0x2f4 [ 254.041485] [<00000000002e3638>] ccw_device_sense_id_done+0x50/0x90 [ 254.041508] [<00000000002e615a>] snsid_callback+0xfa/0x3a8 [ 254.041515] [<00000000002dd96c>] ccwreq_stop+0x80/0x90 [ 254.041523] [<00000000002dda8e>] ccw_request_timeout+0xc2/0xd0 [ 254.041530] [<00000000002e2f70>] ccw_device_request_event+0x58/0x90 [ 254.041537] [<00000000002e47ae>] ccw_device_timeout+0x7e/0x2f0 [ 254.041555] [<000000000006c02a>] run_timer_softirq+0x22a/0x340 [ 254.041566] [<0000000000064eb0>] __do_softirq+0x138/0x2b0 [ 254.041578] [<0000000000024cf6>] do_softirq+0x102/0x108 [ 254.041590] [<00000000000647ce>] irq_exit+0xee/0x114 [ 254.041603] [<0000000000457d88>] do_extint+0x130/0x17c [ 254.041617] [<000000000002d41e>] ext_no_vtime+0x1e/0x22 [ 254.041631] [<0000000000029faa>] vtime_stop_cpu+0xbe/0x114 [ 254.041646] ([<0000000000029f58>] vtime_stop_cpu+0x6c/0x114) [ 254.041662] [<000000000001d842>] cpu_idle+0x122/0x1c0 [ 254.041679] [<00000000004482c6>] start_secondary+0xce/0xe0 [ 254.041696] [<0000000000000000>] 0x0 [ 254.041715] [<0000000000000000>] 0x0 [ 254.041745] INFO: lockdep is turned off. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.31
2009-07-06[CPUFREQ] Powernow-k8: support family 0xf with 2 low p-statesMark Langsdorf
Provide support for family 0xf processors with 2 P-states below the elevator voltage. Remove the checks that prevent this configuration from being supported and increase the transition voltage to prevent errors during the transition. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
2009-07-06Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/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: fix usage of bios intcall() x86: Remove unused function lapic_watchdog_ok() x86: Remove unused variable disable_x2apic x86, kvm: Fix section mismatches in kvm.c x86: Add missing annotation to arch/x86/lib/copy_user_64.S::copy_to_user x86: Fix fixmap page order for FIX_TEXT_POKE0,1 amd-iommu: set evt_buf_size correctly amd-iommu: handle alias entries correctly in init code x86: Fix printk call in print_local_apic() x86: Declare check_efer() before it gets used x86: Mark device_nb as static and fix NULL noise x86: Remove double declaration of MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1 xen: Use kcalloc() in xen_init_IRQ() x86: Fix fixmap ordering x86: Fix symbol annotation for arch/x86/lib/clear_page_64.S::clear_page_c