- 23 2月, 2009 10 次提交
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由 Steven Rostedt 提交于
The original port of ftrace to PowerPC kept a lot of the code used by x86. Some of this code was to handle x86's 5 byte instruction. This was handled by using character arrays to manipulate the code. PowerPC has a consistent 4 byte instruction. Using unsigned ints makes the code more efficient as well as more readable. By converting to use unsigned ints to represent instructions, I was able to remove the side effects that were needed for manipulating character strings. i.e. memcpy and memcmp Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Steven Rostedt 提交于
This patch gets function graph tracing working with dynamic function tracer on PowerPC32. Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Steven Rostedt 提交于
This patch ports the function graph tracer for PowerPC, but only for static function tracing. Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Steven Rostedt 提交于
Impact: clean up Use a macro to save and restore the registers for PowerPC32, since that code is duplicated. This is similar to the work done by Cyrill Gorcunov for the mcount code in x86_64. Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Steven Rostedt 提交于
The TOCS used by modules are different than the one used by the core kernel code. The function graph tracer must save and restore the TOC whenever it traces a module call. But this is an added overhead to burden the majority of core kernel code being traced. Benjamin Herrenschmidt suggested in testing the entry of the call to tell if it is a core kernel function or a module. He recommended using the REGION_ID() macro to perform this test. This patch implements Benjamin's idea, and uses a different return_to_handler routine dependent on if the entry is a core kernel function or not. The module version saves the TOC, where as the core kernel version does not. Geoff Lavand tested on PS3. Tested-by: NGeoff Levand <geoffrey.levand@am.sony.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Steven Rostedt 提交于
This is the port of the function graph tracer to PowerPC with dynamic tracing. Geoff Lavand tested on PS3. Tested-by: NGeoff Levand <geoffrey.levand@am.sony.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Steven Rostedt 提交于
This is a port of the function graph tracer that was written by Frederic Weisbecker for the x86. This only works for PPC64 at the moment and only for static tracing. PPC32 and dynamic function graph tracing support will come later. The trace produces a visual calling of functions: # tracer: function_graph # # CPU DURATION FUNCTION CALLS # | | | | | | | 0) 2.224 us | } 0) ! 271.024 us | } 0) ! 320.080 us | } 0) ! 324.656 us | } 0) ! 329.136 us | } 0) | .put_prev_task_fair() { 0) | .update_curr() { 0) 2.240 us | .update_min_vruntime(); 0) 6.512 us | } 0) 2.528 us | .__enqueue_entity(); 0) + 15.536 us | } 0) | .pick_next_task_fair() { 0) 2.032 us | .__pick_next_entity(); 0) 2.064 us | .__clear_buddies(); 0) | .set_next_entity() { 0) 2.672 us | .__dequeue_entity(); 0) 6.864 us | } Geoff Lavand tested on PS3. Tested-by: NGeoff Levand <geoffrey.levand@am.sony.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Steven Rostedt 提交于
Michael Neuling reported a compile bug when dynamic ftrace was configured in and modules were not. This was due to the ftrace code referencing module specific structures. Reported-by: NMichael Neuling <mikey@neuling.org> Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Steven Rostedt 提交于
Impact: cleanup The PowerPC ftrace code uses a hacked up DEBUGP macro for prints. This patch converts it to the standard pr_debug. Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
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- 19 2月, 2009 1 次提交
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由 Steven Rostedt 提交于
There is nothing really arch specific of the push and pop functions used by the function graph tracer. This patch moves them to generic code. Acked-by: NFrederic Weisbecker <fweisbec@gmail.com> Acked-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NSteven Rostedt <srostedt@redhat.com>
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- 18 2月, 2009 29 次提交
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由 Benjamin Herrenschmidt 提交于
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由 Benjamin Herrenschmidt 提交于
Manual merge of: arch/powerpc/include/asm/pgtable-ppc32.h
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由 Zlatko Calusic 提交于
Signed-off-by: NZlatko Calusic <zlatko.calusic@iskon.hr> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rafael J. Wysocki 提交于
If a USB PCI controller is behind a cardbus bridge, we are trying to restore its configuration registers too early, before the cardbus bridge is operational. To fix this, call pci_restore_state() from usb_hcd_pci_resume() and remove usb_hcd_pci_resume_early() which is no longer necessary (the configuration spaces of USB controllers that are not behind cardbus bridges will be restored by the PCI PM core with interrupts disabled anyway). This patch fixes the regression from 2.6.28 tracked as http://bugzilla.kernel.org/show_bug.cgi?id=12659 [ Side note: the proper long-term fix is probably to just force the unplug event at suspend time instead of doing a plug/unplug at resume time, but this patch is fine regardless - Linus ] Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Reported-by: NMiles Lane <miles.lane@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: cpu hotplug fix
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由 Linus Torvalds 提交于
Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: timers: more consistently use clock vs timer
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由 Linus Torvalds 提交于
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: doc: mmiotrace.txt, buffer size control change trace: mmiotrace to the tracer menu in Kconfig mmiotrace: count events lost due to not recording
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由 Linus Torvalds 提交于
Merge branch 'x86-fixes-for-linus' of 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, vm86: fix preemption bug x86, olpc: fix model detection without OFW x86, hpet: fix for LS21 + HPET = boot hang x86: CPA avoid repeated lazy mmu flush x86: warn if arch_flush_lazy_mmu_cpu is called in preemptible context x86/paravirt: make arch_flush_lazy_mmu/cpu disable preemption x86, pat: fix warn_on_once() while mapping 0-1MB range with /dev/mem x86/cpa: make sure cpa is safe to call in lazy mmu mode x86, ptrace, mm: fix double-free on race
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由 Linus Torvalds 提交于
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: iommu: fix Intel IOMMU write-buffer flushing futex: fix reference leak Trivial conflicts fixed manually in drivers/pci/intel-iommu.c
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/vsx: Fix VSX alignment handler for regs 32-63 powerpc/ps3: Move ps3_mm_add_memory to device_initcall powerpc/mm: Fix numa reserve bootmem page selection powerpc/mm: Fix _PAGE_CHG_MASK to protect _PAGE_SPECIAL
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: Documentation: fix minor PCIe HOWTO thinko PCI: fix missing kernel-doc and typos PCI: fix struct pci_platform_pm_ops kernel-doc PCI: fix rom.c kernel-doc warning PCI/MSI: fix msi_mask() shift fix
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: lrw - Fix big endian support
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: hold trans_mutex when using btrfs_record_root_in_trans Btrfs: make a lockdep class for the extent buffer locks Btrfs: fs/btrfs/volumes.c: remove useless kzalloc Btrfs: remove unused code in split_state() Btrfs: remove btrfs_init_path Btrfs: balance_level checks !child after access Btrfs: Avoid using __GFP_HIGHMEM with slab allocator Btrfs: don't clean old snapshots on sync(1) Btrfs: use larger metadata clusters in ssd mode Btrfs: process mount options on mount -o remount, Btrfs: make sure all pending extent operations are complete
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev由 Linus Torvalds 提交于
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: sata_nv: give up hardreset on nf2 libata-sff: fix 32-bit PIO ATAPI regression
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git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes: kbuild: create the source symlink earlier in the objdir scripts: add x86 64 bit support to the markup_oops.pl script scripts: add x86 register parser to markup_oops.pl kbuild: add sys_* entries for syscalls in tags kbuild: fix tags generation of config symbols bootgraph: fix for use with dot symbols kbuild: add vmlinux to kernel rpm kbuild,setlocalversion: shorten the make time when using svn
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git://jdelvare.pck.nerim.net/jdelvare-2.6由 Linus Torvalds 提交于
* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: MAINTAINERS: Switch hdaps to Frank Seidel hwmon: Fix ACPI resource check error handling hwmon: (f71882fg) Hide misleading error message
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6由 Linus Torvalds 提交于
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: V4L/DVB (10626): ivtv: fix regression in get sliced vbi format V4L/DVB (10625): ivtv: fix decoder crash regression V4L/DVB (10619): gspca - main: Destroy the URBs at disconnection time. V4L/DVB (10572): Revert commit dda06a8e V4L/DVB (10533): fix LED status output V4L/DVB (10532): Correction of Stereo detection/setting and signal strength indication V4L/DVB (10527): tuner: fix TUV1236D analog/digital setup V4L/DVB (10516a): zoran: Update MAINTAINERS entry
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: fix bus endianity in file2alias HID: move tmff and zpff devices from ignore_list to blacklist HID: unlock properly on error paths in hidraw_ioctl() HID: blacklist Powercom USB UPS
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git://git.o-hand.com/linux-mfd由 Linus Torvalds 提交于
* 'for-linus' of git://git.o-hand.com/linux-mfd: mfd: Fix sm501_register_gpio section mismatch mfd: fix sm501 section mismatches mfd: terminate pcf50633 i2c_device_id list mfd: Ensure all WM8350 IRQs are masked at startup mfd: fix htc-egpio iomem resource handling using resource_size mfd: Fix TWL4030 build on some ARM variants mfd: wm8350 tries reaches -1 mfd: Mark WM835x USB_SLV_500MA bit as accessible mfd: Improve diagnostics for WM8350 ID register probe mfd: Initialise WM8350 interrupts earlier mfd: Fix egpio kzalloc return test
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git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] iTCO_wdt: fix SMI_EN regression 2
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git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb由 Linus Torvalds 提交于
* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb: wusb: whci-hcd: always lock whc->lock with interrupts disabled
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由 Roel Kluin 提交于
The macro doesn't expand correctly when its parameter isn't 'pte'. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4由 Linus Torvalds 提交于
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: Fix NULL dereference in ext4_ext_migrate()'s error handling ext4: Implement range_cyclic in ext4_da_writepages instead of write_cache_pages ext4: Initialize preallocation list_head's properly ext4: Fix lockdep warning ext4: Fix to read empty directory blocks correctly in 64k jbd2: Avoid possible NULL dereference in jbd2_journal_begin_ordered_truncate() Revert "ext4: wait on all pending commits in ext4_sync_fs()" jbd2: Fix return value of jbd2_journal_start_commit()
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
* 'kvm-updates/2.6.29' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: VMX: Flush volatile msrs before emulating rdmsr KVM: Fix assigned devices circular locking dependency KVM: x86: fix LAPIC pending count calculation KVM: Fix INTx for device assignment KVM: MMU: Map device MMIO as UC in EPT KVM: x86: disable kvmclock on non constant TSC hosts KVM: PIT: fix i8254 pending count read KVM: Fix racy in kvm_free_assigned_irq KVM: Add kvm_arch_sync_events to sync with asynchronize events KVM: mmu_notifiers release method KVM: Avoid using CONFIG_ in userspace visible headers KVM: ia64: fix fp fault/trap handler
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: cpumask: Use cpu_*_mask accessors code: alpha cpumask: fix powernow-k8: partial revert of 2fdf66b4
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由 David Woodhouse 提交于
This is the cause of the DMA faults and disk corruption that people have been seeing. Some chipsets neglect to report the RWBF "capability" -- the flag which says that we need to flush the chipset write-buffer when changing the DMA page tables, to ensure that the change is visible to the IOMMU. Override that bit on the affected chipsets, and everything is happy again. Thanks to Chris and Bhavesh and others for helping to debug. Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com> Tested-by: NChris Wright <chrisw@sous-sol.org> Reviewed-by: NBhavesh Davda <bhavesh@vmware.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Al Viro 提交于
Getting this wrong caused WARNING: at fs/namespace.c:636 mntput_no_expire+0xac/0xf2() due to optimistically checking cpu_writer->mnt outside the spinlock. Here's what we really want: * we know that nobody will set cpu_writer->mnt to mnt from now on * all changes to that sucker are done under cpu_writer->lock * we want the laziest equivalent of spin_lock(&cpu_writer->lock); if (likely(cpu_writer->mnt != mnt)) { spin_unlock(&cpu_writer->lock); continue; } /* do stuff */ that would make sure we won't miss earlier setting of ->mnt done by another CPU. Anyway, for now we just move the spin_lock() earlier and move the test into the properly locked region. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Reported-and-tested-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Frank Seidel 提交于
As Rovert Love doesn't any more seem to be realy active on hdaps driver i'll happily take it over. Signed-off-by: NFrank Seidel <frank@f-seidel.de> Cc: Robert Love <rlove@rlove.org> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Hans de Goede 提交于
This patch fixes a number of cases where things were not properly cleaned up when acpi_check_resource_conflict() returned an error, causing oopses such as the one reported here: https://bugzilla.redhat.com/show_bug.cgi?id=483208Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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