- 13 Nov, 2005 40 commits
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Al Viro authored
a) in smp_lock.h #include of sched.h and spinlock.h moved under #ifdef CONFIG_LOCK_KERNEL. b) interrupt.h now explicitly pulls sched.h (not via smp_lock.h from hardirq.h as it used to) c) in three more places we need changes to compensate for (a) - one place in arch/sparc needs string.h now, hardirq.h needs forward declaration of task_struct and preempt.h needs direct include of thread_info.h. d) thread_info-related helpers in sched.h and thread_info.h put under ifndef __HAVE_THREAD_FUNCTIONS. Obviously safe. Signed-off-by:
Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by:
Roman Zippel <zippel@linux-m68k.org> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Al Viro authored
encapsulates the rest of arch-dependent operations with thread_info access. Two new helpers - setup_thread_stack() and end_of_stack(). For normal case the former consists of copying thread_info of parent to new thread_info and the latter returns pointer immediately past the end of thread_info. Signed-off-by:
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Al Viro authored
new helper - task_thread_info(task). On platforms that have thread_info allocated separately (i.e. in default case) it simply returns task->thread_info. m68k wants (and for good reasons) to embed its thread_info into task_struct. So it will (in later patch) have task_thread_info() of its own. For now we just add a macro for generic case and convert existing instances of its body in core kernel to uses of new macro. Obviously safe - all normal architectures get the same preprocessor output they used to get. Signed-off-by:
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Tim Mann authored
Fix http://bugzilla.kernel.org/show_bug.cgi?id=5546 The cpu_khz global is not initialized and remains 0 if you boot with clock=pit, even if the processor does have a TSC. This may have bad ramifications since the variable is used in various places scattered around the kernel, though I didn't check them all to see if they can tolerate cpu_khz = 0. You can observe the problem by doing "cat /proc/cpuinfo"; the cpu MHz line says 0.000. The fix is trivial; call init_cpu_khz() from init_pit(), just as it's called from the timers/timer_foo.c:init_foo() for other values of foo. Cc: john stultz <johnstul@us.ibm.com> Signed-off-by:
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Jan Beulich authored
Instruction pointer comparisons for the NMI on debug stack check/fixup were incorrect. From: Jan Beulich <jbeulich@novell.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Zwane Mwaikambo <zwane@holomorphy.com> Acked-by:
"Seth, Rohit" <rohit.seth@intel.com> Cc: Zachary Amsden <zach@vmware.com> Signed-off-by:
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Adrian Bunk authored
This patch contains the following cleanups: - make a needlessly global function static - every file should include the headers containing the prototypes for it's global functions Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Andrew Morton authored
arch/powerpc/xmon/xmon.c:525: error: syntax error before "xmon_irq" arch/powerpc/xmon/xmon.c:526: warning: return type defaults to `int' arch/powerpc/xmon/xmon.c: In function `xmon_irq': arch/powerpc/xmon/xmon.c:532: error: `IRQ_HANDLED' undeclared (first use in this function) arch/powerpc/xmon/xmon.c:532: error: (Each undeclared identifier is reported only once arch/powerpc/xmon/xmon.c:532: error: for each function it appears in.) Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Kumar Gala authored
The MPC8349 PIBs system has a expansion board with 6 PCI slots. We needed to update the IDSEL interrupt mapping for it to work properly. However, only PCI1 is supported as the first revision of this expansion board doesn't function properly for PCI2. For the time being we have zero'd out the entries for the IDSELs related to PCI2. When a functioning expansion board exists we can fix the table. Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Olof Johansson authored
Enablement patch for the new PowerBooks (late 2005 edition). This enables the ATA controller, Gigabit ethernet and basic AGP setup. Bluetooth works out-of-the box after running hid2hci. Still remaining is to get the touchpad to work, the simple change of just adding the new USB ids isn't enough. Signed-off-by:
Olof Johansson <olof@lixom.net> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Christoph Lameter authored
The slab allocator never uses alloc_pages since kmem_getpages() is always called with a valid nodeid. Remove the branch and the code from kmem_getpages() Signed-off-by:
Christoph Lameter <clameter@sgi.com> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by:
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Pekka Enberg authored
This patch converts object cache <-> page mapping macros to static inline functions to make the more explicit and readable. Signed-off-by:
Pekka Enberg <penberg@cs.helsinki.fi> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by:
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Nick Piggin authored
The pages_high - pages_low and pages_low - pages_min deltas are the asynch reclaim watermarks. As such, the should be in the same ratios as any other zone for highmem zones. It is the pages_min - 0 delta which is the PF_MEMALLOC reserve, and this is the region that isn't very useful for highmem. This patch ensures highmem systems have similar characteristics as non highmem ones with the same amount of memory, and also that highmem zones get similar reclaim pressures to other zones. Signed-off-by:
Nick Piggin <npiggin@suse.de> Signed-off-by:
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Paul Jackson authored
Remove last remnant of the defunct early reclaim page logic, the no longer used __GFP_NORECLAIM flag bit. Signed-off-by:
Paul Jackson <pj@sgi.com> Acked-by:
Martin Hicks <mort@bork.org> Signed-off-by:
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Rohit Seth authored
Clean up of __alloc_pages. Restoration of previous behaviour, plus further cleanups by introducing an 'alloc_flags', removing the last of should_reclaim_zone. Signed-off-by:
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Robin Holt authored
The address based work estimate for unmapping (for lockbreak) is and always was horribly inefficient for sparse mappings. The problem is most simply explained with an example: If we find a pgd is clear, we still have to call into unmap_page_range PGDIR_SIZE / ZAP_BLOCK_SIZE times, each time checking the clear pgd, in order to progress the working address to the next pgd. The fundamental way to solve the problem is to keep track of the end address we've processed and pass it back to the higher layers. From: Nick Piggin <npiggin@suse.de> Modification to completely get away from address based work estimate and instead use an abstract count, with a very small cost for empty entries as opposed to present pages. On 2.6.14-git2, ppc64, and CONFIG_PREEMPT=y, mapping and unmapping 1TB of virtual address space takes 1.69s; with the following patch applied, this operation can be done 1000 times in less than 0.01s From: Andrew Morton <akpm@osdl.org> With CONFIG_HUTETLB_PAGE=n: mm/memory.c: In function `unmap_vmas': mm/memory.c:779: warning: division by zero Due to zap_work -= (end - start) / (HPAGE_SIZE / PAGE_SIZE); So make the dummy HPAGE_SIZE non-zero Signed-off-by:
Robin Holt <holt@sgi.com> Signed-off-by:
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Kirill Korotaev authored
In __alloc_pages(): if ((p->flags & (PF_MEMALLOC | PF_MEMDIE)) && !in_interrupt()) { /* go through the zonelist yet again, ignoring mins */ for (i = 0; zones[i] != NULL; i++) { struct zone *z = zones[i]; page = buffered_rmqueue(z, order, gfp_mask); if (page) { zone_statistics(zonelist, z); goto got_pg; } } goto nopage; <<<< HERE!!! FAIL... } kswapd (which has PF_MEMALLOC flag) can fail to allocate memory even when it allocates it with __GFP_NOFAIL flag. Signed-Off-By:Pavel Emelianov <xemul@sw.ru> Signed-Off-By:
Denis Lunev <den@sw.ru> Signed-Off-By:
Kirill Korotaev <dev@sw.ru> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by:
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Andrew Morton authored
Missing include. Cc: Greg KH <greg@kroah.com> Signed-off-by:
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Andrew Morton authored
drivers/pci/hotplug/pciehp_hpc.c:221: parse error before "pcie_isr" drivers/pci/hotplug/pciehp_hpc.c:221: warning: type defaults to `int' in declaration of `pcie_isr' drivers/pci/hotplug/pciehp_hpc.c:221: warning: data definition has no type or storage class drivers/pci/hotplug/pciehp_hpc.c: In function `hpc_release_ctlr': drivers/pci/hotplug/pciehp_hpc.c:715: implicit declaration of function `free_irq' drivers/pci/hotplug/pciehp_hpc.c: At top level: drivers/pci/hotplug/pciehp_hpc.c:839: parse error before "pcie_isr" drivers/pci/hotplug/pciehp_hpc.c:840: warning: return type defaults to `int' drivers/pci/hotplug/pciehp_hpc.c: In function `pcie_isr': drivers/pci/hotplug/pciehp_hpc.c:850: `IRQ_NONE' undeclared (first use in this function) drivers/pci/hotplug/pciehp_hpc.c:850: (Each undeclared identifier is reported only once drivers/pci/hotplug/pciehp_hpc.c:850: for each function it appears in.) drivers/pci/hotplug/pciehp_hpc.c:979: `IRQ_HANDLED' undeclared (first use in this function) drivers/pci/hotplug/pciehp_hpc.c: In function `pcie_init': drivers/pci/hotplug/pciehp_hpc.c:1362: implicit declaration of function `request_irq' Cc: Greg KH <greg@kroah.com> Signed-off-by:
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Richard Purdie authored
Fix an error in w100fb after the platform device conversion. Signed-off-by:
Richard Purdie <rpurdie@rpsys.net> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by:
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Peter Osterlund authored
There is an old bug in the pkt_count_states() function that causes stack corruption. When compiling with gcc 3.x or 2.x it is harmless, but gcc 4 allocates local variables differently, which makes the bug visible. Signed-off-by:
Peter Osterlund <petero2@telia.com> Cc: <stable@kernel.org> Signed-off-by:
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Bob Picco authored
It is wrong to acquire the semaphore and then return from cpuset_zone_allowed without releasing it. Signed-off-by:
Bob Picco <bob.picco@hp.com> Acked-by:
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Antonino A. Daplas authored
nvidiafb_pan_display() is incorrectly using the fields in info->var instead of var passed to the function. Signed-off-by:
Antonino Daplas <adaplas@pol.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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akpm@osdl.org authored
(akpm: _machine is some ppc64 thing - this is a powerpc-only driver) Signed-off-by:
Serge Hallyn <serue@us.ibm.com> Signed-off-by:
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Christoph Hellwig authored
When ptrace_attach fails we need to drop the task_struct reference. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Antonino A. Daplas authored
Exporting struct fb_display produces this warning error on depmod: WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_ud.ko ignored, due to loop WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_rotate.ko ignored, due to loop WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_cw.ko ignored, due to loop WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_ccw.ko ignored, due to loop WARNING: Module /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon.ko ignored, due to loop WARNING: Loop detected: /lib/modules/2.6.14-mm2/kernel/drivers/video/console/bitblit.ko needs Signed-off-by:
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Andrew Morton authored
drivers/video/nvidia/nv_of.c:33: error: redefinition of `nvidia_probe_of_connector' drivers/video/nvidia/nv_proto.h:51: error: `nvidia_probe_of_connector' previously defined here Because the inline version depends on !CONFIG_FB_OF and the out-of-line version depends on CONFIG_PPC_OF. Ben said: "Yes, CONFIG_PPC_OF is the right one, must be a typo." Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> C: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by:
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Kumar Gala authored
Changed jobs and the Freescale address is no longer valid. Signed-off-by:
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Harald Welte authored
Add new Omnikey Cardman 4000 smartcard reader driver Signed-off-by:
Harald Welte <laforge@gnumonks.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by:
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Harald Welte authored
Add new Omnikey Cardman 4040 smartcard reader driver Signed-off-by:
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Jeff Garzik authored
Since few people need the support anymore, this moves the legacy pm_xxx functions to CONFIG_PM_LEGACY, and include/linux/pm_legacy.h. Signed-off-by:
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Eric Dumazet authored
The file_lock spinlock sits close to mostly read fields of 'struct files_struct' In SMP (and NUMA) environments, each time a thread wants to open or close a file, it has to acquire the spinlock, thus invalidating the cache line containing this spinlock on other CPUS. So other threads doing read()/write()/... calls that use RCU to access the file table are going to ask further memory (possibly NUMA) transactions to read again this memory line. Move the spinlock to another cache line, so that concurrent threads can share the cache line containing 'count' and 'fdt' fields. It's worth up to 9% on a microbenchmark using a 4-thread 2-package x86 machine. See http://marc.theaimsgroup.com/?l=linux-kernel&m=112680448713342&w=2 Signed-off-by:
Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
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Karsten Wiese authored
attached patch renames one instance of /sys/devices/system/timer to /sys/devices/system/timer_pit to avoid a name clash with another instance created in time.c. Acked-by:
Andi Kleen <ak@muc.de> Cc: Greg KH <greg@kroah.com> Signed-off-by:
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Siddha, Suresh B authored
Fix the x86_64 TSS limit in TSS descriptor. Signed-off-by:
Suresh Siddha <suresh.b.siddha@intel.com> Acked-by:
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Linus Torvalds authored
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Mark Lord authored
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Mark Lord authored
Fix description on comments for ata_tf_from_fis(). Signed-off-by:
Mark Lord <mlord@pobox.com> Signed-off-by:
Jeff Garzik <jgarzik@pobox.com>
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Linus Torvalds authored
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Thomas Gleixner authored
Signed-off-by:Thomas Gleixner <tglx@linutronix.de>
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Sean Young authored
CONFIG_ELAN doesn't exist any more; CONFIG_X86_ELAN is too specific so make ts-5500 memory map dependant on CONFIG_X86. Signed-off-by:
Sean Young <sean@mess.org> Signed-off-by:
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Chris Wright authored
Remove time_out_leases() printk that's easily triggered by users. Signed-off-by:
Chris Wright <chrisw@osdl.org> Signed-off-by:
Trond Myklebust <Trond.Myklebust@netapp.com>
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