- 17 May, 2007 33 commits
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Randy Dunlap authored
Andi Kleen pointed out to me that the kernel locking cheat sheet table entries are unreadable. Make table entries smaller so that pdf and ps output is readable (columns were being overwritten and garbled) by using abbreviations. This allows the tables to fit on one page cleanly. Add a Legend for the abbreviations: SLIS: spin_lock_irqsave SLI: spin_lock_irq SL: spin_lock SLBH: spin_lock_bh DI: down_interruptible Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Randy Dunlap authored
linux-parport is subscribers-only: Your mail to 'Linux-parport' with the subject Re: [QUESTION] parallel console configuration Is being held until the list moderator can review it for approval. The reason it is being held: Post by non-member to a members-only list Signed-off-by: -
Oleg Nesterov authored
It is a known fact that freezeable multithreaded workqueues doesn't like CPU_DEAD. We keep them only for the incoming CPU-hotplug rework. Sadly, we can't just kill create_freezeable_workqueue() right now, make them singlethread. Signed-off-by:
Oleg Nesterov <oleg@tv-sign.ru> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by:
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Gerd Hoffmann authored
Refine SCREEN_INFO sanity check for vgacon initialization. Checking video mode field only to see whenever SCREEN_INFO is initialized is not enougth, in some cases it is zero although a vga card is present. Lets additionally check cols and lines. Signed-off-by:
Gerd Hoffmann <kraxel@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <ak@suse.de> Cc: Alan <alan@lxorguk.ukuu.org.uk> Cc: Ingo Molnar <mingo@elte.hu> Acked-by:
Eric W. Biederman <ebiederm@xmission.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by:
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Heiko Carstens authored
All architectures that have an implementation of smp_call_function_single let it return -EBUSY if it is asked to execute func on the current cpu. (akpm: except for x86_64). Therefore the UP version must always return -EBUSY. [akpm@linux-foundation.org: build fix] Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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Heiko Carstens authored
Just thought this is easier to read. Acked-by:
Davide Libenzi <davidel@xmailserver.org> Signed-off-by:
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Benjamin Herrenschmidt authored
__vunmap doesn't seem to be used outside of mm/vmalloc.c, and has no prototype in any header so let's make it static Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Bernhard Walle authored
WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text:mtrr_bp_init from .text between 'id entify_cpu' (at offset 0x6571) and 'IRQ0x20_interrupt' It's because identify_cpu() which is __cpuinit calls mtrr_bp_init() which is __init(). __cpuinit() expands to nothing if CONFIG_HOTPLUG_CPU=y and so the call is illegal. Signed-off-by:
Bernhard Walle <bwalle@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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Aaron Durbin authored
Strip __cpuinit[data] from Node <-> PXM routines and supporting data structures. Also make pxm_to_node_map and node_to_pxm_map local to the numa acpi module. This fixes a bug triggered by the following conditions: - boot on a machine with a SLIT table defined - kernel is configured w/ CONFIG_HOTPLUG_CPU=n - cat /sys/devices/system/node/node*/distance This will cause an oops by calling into a freed memory section. In particular, on x86_64, __node_distance calls node_to_pxm(). Signed-off-by:
Aaron Durbin <adurbin@google.com> Cc: Len Brown <lenb@kernel.org> Cc: <stable@kernel.org> Signed-off-by:
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Christoph Lameter authored
Currently we have a maze of configuration variables that determine the maximum slab size. Worst of all it seems to vary between SLAB and SLUB. So define a common maximum size for kmalloc. For conveniences sake we use the maximum size ever supported which is 32 MB. We limit the maximum size to a lower limit if MAX_ORDER does not allow such large allocations. For many architectures this patch will have the effect of adding large kmalloc sizes. x86_64 adds 5 new kmalloc sizes. So a small amount of memory will be needed for these caches (contemporary SLAB has dynamically sizeable node and cpu structure so the waste is less than in the past) Most architectures will then be able to allocate object with sizes up to MAX_ORDER. We have had repeated breakage (in fact whenever we doubled the number of supported processors) on IA64 because one or the other struct grew beyond what the slab allocators supported. This will avoid future issues and f.e. avoid fixes for 2k and 4k cpu support. CONFIG_LARGE_ALLOCS is no longer necessary so drop it. It fixes sparc64 with SLAB. Signed-off-by:
Christoph Lameter <clameter@sgi.com> Signed-off-by:
"David S. Miller" <davem@davemloft.net> Signed-off-by:
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Christoph Lameter authored
Consolidate functionality into the #ifdef section. Extract tracing into one subroutine. Move object debug processing into the #ifdef section so that the code in __slab_alloc and __slab_free becomes minimal. Reduce number of functions we need to provide stubs for in the !SLUB_DEBUG case. Signed-off-by:
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Christoph Lameter authored
SLAB_CTOR_CONSTRUCTOR is always specified. No point in checking it. Signed-off-by:
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Christoph Lameter authored
The atomicity when handling flags in SLUB is not necessary since both flags used by SLUB are not updated in a racy way. Flag updates are either done during slab creation or destruction or under slab_lock. Some of these flags do not have the non atomic variants that we need. So define our own. Signed-off-by:
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Christoph Lameter authored
Align the output of % with K/M/G of sizes. Check for empty NUMA information to avoid segfault on !NUMA. -r should work directly not only if we match a single slab without additional options. Signed-off-by:
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Andrew Morton authored
I'm getting zillions of undefined references to __kmalloc_size_too_large on alpha. For some reason alpha is building out-of-line copies of kmalloc_slab() into lots of compilation units. It turns out that gcc just isn't smart enough to work out that __builtin_contant_p(size)==true implies that __builtin_contant_p(index)==true. So let's give it a bit of help. Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by:
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Christoph Lameter authored
slub warns on this, and we're working on making kmalloc(0) return NULL. Let's make slab warn as well so our testers detect such callers more rapidly. Signed-off-by:
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Christoph Lameter authored
Use inline functions to access the per cpu bit. Intoduce the notion of "freezing" a slab to make things more understandable. Signed-off-by:
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Christoph Lameter authored
Two definitions remained in slab.h that are particular to the SLAB allocator. Move to slab_def.h Signed-off-by:
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Christoph Lameter authored
No arch sets ARCH_USES_SLAB_PAGE_STRUCT anymore. Remove the experimental dependency as well since we want to have it as a real alternative to SLAB. It all comes down to killing a single line from init/Kconfig. Signed-off-by:
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Christoph Lameter authored
There is no user of destructors left. There is no reason why we should keep checking for destructors calls in the slab allocators. The RFC for this patch was discussed at http://marc.info/?l=linux-kernel&m=117882364330705&w=2 Destructors were mainly used for list management which required them to take a spinlock. Taking a spinlock in a destructor is a bit risky since the slab allocators may run the destructors anytime they decide a slab is no longer needed. Patch drops destructor support. Any attempt to use a destructor will BUG(). Acked-by:
Pekka Enberg <penberg@cs.helsinki.fi> Acked-by:
Paul Mundt <lethal@linux-sh.org> Signed-off-by:
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Nick Piggin authored
The SLOB allocator should implement SLAB_DESTROY_BY_RCU correctly, because even on UP, RCU freeing semantics are not equivalent to simply freeing immediately. This also allows SLOB to be used on SMP. Signed-off-by:
Nick Piggin <npiggin@suse.de> Acked-by:
Matt Mackall <mpm@selenic.com> Signed-off-by:
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Linus Torvalds authored
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata: track spindown status and skip spindown_compat if possible libata: fix shutdown warning message printing libata-acpi: add ATA_FLAG_ACPI_SATA port flag libata: during revalidation, check n_sectors after device is configured libata: separate out ata_dev_reread_id() pata_scc had been missed by ata_std_prereset() switch
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Linus Torvalds authored
* 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa: [ALSA] usbaudio - Coping with short replies in usbmixer [ALSA] Include quirks from Ubuntu Dapper/Edgy/Feisty [ALSA] Fix probe of non-PnP ISA devices [ALSA] version 1.0.14rc4 [ALSA] hda-codec - Fix ALC882/861VD codec support on some laptops [ALSA] ASoC AC97 device reg bugfix [ALSA] ASoC AC97 static GPL symbol fix [ALSA] hda-codec - Make the mixer capability check more robust [ALSA] usb-audio: another Logitech QuickCam ID
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git://www.atmel.no/~hskinnemoen/linux/kernel/avr32Linus Torvalds authored
* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32: [AVR32] Implement platform hooks for atmel_lcdfb driver [AVR32] Wire up signalfd, timerfd and eventfd [AVR32] optimize pagefault path [AVR32] Remove bogus comment in arch/avr32/kernel/irq.c
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Add hypervisor API negotiation and fix console bugs.
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Christoph Lameter authored
We call alloc_page where we should be calling __page_cache_alloc. __page_cache_alloc performs cpuset memory spreading. alloc_page does not. There is no reason that pages allocated via find_or_create should be exempt. Signed-off-by:
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Andrew Morton authored
alpha: drivers/parport/parport_pc.c: In function 'parport_pc_fifo_write_block_dma': drivers/parport/parport_pc.c:636: warning: implicit declaration of function 'dma_map_single' drivers/parport/parport_pc.c:637: error: 'DMA_TO_DEVICE' undeclared (first use in this function) drivers/parport/parport_pc.c:637: error: (Each undeclared identifier is reported only once drivers/parport/parport_pc.c:637: error: for each function it appears in.) Signed-off-by:
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Domen Puncer authored
find_first_zero_bit accepts number of bits, not longs. Signed-off-by:
Domen Puncer <domen.puncer@telargo.com> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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David Howells authored
afs_prepare_write() should not mark a page up to date if it only partially fills it in, in expectation of the caller filling in the rest prior to calling commit_write(). commit_write(), however, should mark the page up to date. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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Hugh Dickins authored
kmem_cache_create() was swapping ctor and dtor in calling find_mergeable(): though it caused no bug, and probably never would, even if destructors are retained; but fix it so as not to generate anxiety ;) Signed-off-by:
Hugh Dickins <hugh@veritas.com> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by:
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Christoph Lameter authored
Sorry I screwed up the comparison. It is only an error if we attempt to allocate a slab larger than the maximum allowed size. Signed-off-by:
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David Howells authored
Fix AFS to write back dirty on unmounting. This didn't happen because afs_super_ops.drop_inode was pointing to generic_delete_inode. Now this pointer is left set to NULL so that the default behaviour occurs instead. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] optimize pagefaults a little [IA64] Fix section conflict of ia64_mlogbuf_finish [IA64] s/scalibility/scalability/ [IA64] kdump on INIT needs multi-nodes sync-up (v.2) [IA64] wire up {signal,timer,event}fd syscalls [IA64] spelling fixes: arch/ia64/
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- 16 May, 2007 7 commits
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Linus Torvalds authored
In commit e3c7db62 we fixed the resume ordering, so that the ACPI low-level resume code was called before the actual driver resume was called. However, that broke the nesting logic of suspend and resume, and we continued to suspend the devices _after_ we the ACPI device suspend code was called. That resulted in us saving PCI state for devices that had already been changed by ACPI, and in some cases disabled entirely (causing the PCI save_state to be all-ones). Which in turn caused the wrong state to be written back on resume. This moves the ACPI device suspend to after the device model per-device suspend() calls. This fixes the bogus state save. Thanks to Lukáš Hejtmánek for testing. Acked-by:
Lukas Hejtmanek <xhejtman@ics.muni.cz> Acked-by:
Rafael J. Wysocki <rjw@sisk.pl> Cc: Len Brown <len.brown@intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg KH <greg@kroah.com> Signed-off-by:
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Christoph Hellwig authored
Get rid of the notifier list and call the kprobes code directly if compiled in. This mirrors the changes that recently went into powerpc, s390 and sparc64. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Tony Luck <tony.luck@intel.com>
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Thomas Reitmayr authored
This patch makes sure that short USB replies are treated as an error when requesting the value of a certain mixer control. Signed-off-by:
Thomas Reitmayr <thomas@devbase.at> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
Jaroslav Kysela <perex@suse.cz>
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Daniel T Chen authored
Included is a patch against current alsa-kernel hg tip adding quirks that Ubuntu Dapper/Edgy/Feisty contains. Signed-off-by:
Daniel T Chen <crimsun@ubuntu.com> Signed-off-by:
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Rene Herman authored
isa_register_driver() returns an error if no device is found and it's no fatal error for the drivers with pnp support. Signed-off-by:
Rene Herman <rene.herman@gmail.com> Signed-off-by:
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Jaroslav Kysela authored
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Kailang Yang authored
Fixed some platform no sound and Add JD Function for below platform list: Sony(0x104d) 0x9015, 0x900e, 0x1f00 Toshiba(0x1179) DALLAS 0xff00, 0xff01 Targa(0x1462) 0x28fb Asus(0x1043) A7J 0x060d Lenovo(0x17aa) 0x3bfd, 0x2085 MEDION(0x17c0) MD2 0x4071 Signed-off-by:Kailang Yang <kailang@realtek.com.tw> Signed-off-by:
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