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With NPT support, scalability is much improved.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Signed-off-by: Avi Kivity <avi@qumranet.com>
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This is the host part of kvm clocksource implementation. As it does
not include clockevents, it is a fairly simple implementation. We
only have to register a per-vcpu area, and start writing to it periodically.
The area is binary compatible with xen, as we use the same shadow_info
structure.
[marcelo: fix bad_page on MSR_KVM_SYSTEM_TIME]
[avi: save full value of the msr, even if enable bit is clear]
[avi: clear previous value of time_page]
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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This allows kvm_host.h to be #included even when struct preempt_notifier is
undefined. This is needed to build ppc asm-offsets.h.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-bigbox-bootmem-v3
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-bigbox-bootmem-v3:
x86_64/mm: check and print vmemmap allocation continuous
x86_64: fix setup_node_bootmem to support big mem excluding with memmap
x86_64: make reserve_bootmem_generic() use new reserve_bootmem()
mm: allow reserve_bootmem() cross nodes
mm: offset align in alloc_bootmem()
mm: fix alloc_bootmem_core to use fast searching for all nodes
mm: make mem_map allocation continuous
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On big systems with lots of memory, don't print out too much during
bootup, and make it easy to find if it is continuous.
on 256G 8 sockets system will get
[ffffe20000000000-ffffe20002bfffff] PMD -> [ffff810001400000-ffff810003ffffff] on node 0
[ffffe2001c700000-ffffe2001c7fffff] potential offnode page_structs
[ffffe20002c00000-ffffe2001c7fffff] PMD -> [ffff81000c000000-ffff8100255fffff] on node 0
[ffffe20038700000-ffffe200387fffff] potential offnode page_structs
[ffffe2001c800000-ffffe200387fffff] PMD -> [ffff810820200000-ffff81083c1fffff] on node 1
[ffffe20040000000-ffffe2007fffffff] PUD ->ffff811027a00000 on node 2
[ffffe20038800000-ffffe2003fffffff] PMD -> [ffff811020200000-ffff8110279fffff] on node 2
[ffffe20054700000-ffffe200547fffff] potential offnode page_structs
[ffffe20040000000-ffffe200547fffff] PMD -> [ffff811027c00000-ffff81103c3fffff] on node 2
[ffffe20070700000-ffffe200707fffff] potential offnode page_structs
[ffffe20054800000-ffffe200707fffff] PMD -> [ffff811820200000-ffff81183c1fffff] on node 3
[ffffe20080000000-ffffe200bfffffff] PUD ->ffff81202fa00000 on node 4
[ffffe20070800000-ffffe2007fffffff] PMD -> [ffff812020200000-ffff81202f9fffff] on node 4
[ffffe2008c700000-ffffe2008c7fffff] potential offnode page_structs
[ffffe20080000000-ffffe2008c7fffff] PMD -> [ffff81202fc00000-ffff81203c3fffff] on node 4
[ffffe200a8700000-ffffe200a87fffff] potential offnode page_structs
[ffffe2008c800000-ffffe200a87fffff] PMD -> [ffff812820200000-ffff81283c1fffff] on node 5
[ffffe200c0000000-ffffe200ffffffff] PUD ->ffff813037a00000 on node 6
[ffffe200a8800000-ffffe200bfffffff] PMD -> [ffff813020200000-ffff8130379fffff] on node 6
[ffffe200c4700000-ffffe200c47fffff] potential offnode page_structs
[ffffe200c0000000-ffffe200c47fffff] PMD -> [ffff813037c00000-ffff81303c3fffff] on node 6
[ffffe200c4800000-ffffe200e07fffff] PMD -> [ffff813820200000-ffff81383c1fffff] on node 7
instead of a very long print out...
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-generic-bitops-v3
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-generic-bitops-v3:
x86, bitops: select the generic bitmap search functions
x86: include/asm-x86/pgalloc.h/bitops.h: checkpatch cleanups - formatting only
x86: finalize bitops unification
x86, UML: remove x86-specific implementations of find_first_bit
x86: optimize find_first_bit for small bitmaps
x86: switch 64-bit to generic find_first_bit
x86: generic versions of find_first_(zero_)bit, convert i386
bitops: use __fls for fls64 on 64-bit archs
generic: implement __fls on all 64-bit archs
generic: introduce a generic __fls implementation
x86: merge the simple bitops and move them to bitops.h
x86, generic: optimize find_next_(zero_)bit for small constant-size bitmaps
x86, uml: fix uml with generic find_next_bit for x86
x86: change x86 to use generic find_next_bit
uml: Kconfig cleanup
uml: fix build error
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* Export ide_dma_exec_cmd() and __ide_dma_test_irq().
* Constify struct ide_dma_ops.
* Always set hwif->dma_ops to &sff_dma_ops in ide_setup_dma()
(it is later overriden by ide_init_port() if needed) and drop
'const struct ide_port_info *d' argument.
While at it:
* Rename __ide_dma_test_irq() to ide_dma_test_irq().
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Add struct ide_dma_ops and convert core code + drivers to use it.
While at it:
* Drop "ide_" prefix from ->ide_dma_end and ->ide_dma_test_irq methods.
* Drop "ide_" "infixes" from DMA methods.
* au1xxx-ide.c:
- use auide_dma_{test_irq,end}() directly in auide_dma_timeout()
* pdc202xx_old.c:
- drop "old_" "infixes" from DMA methods
* siimage.c:
- add siimage_dma_test_irq() helper
- print SATA warning in siimage_init_one()
* Remove no longer needed ->init_hwif implementations.
v2:
* Changes based on review from Sergei:
- s/siimage_ide_dma_test_irq/siimage_dma_test_irq/
- s/drive->hwif/hwif/ in idefloppy_pc_intr().
- fix patch description w.r.t. au1xxx-ide changes
- fix au1xxx-ide build
- fix naming for cmd64*_dma_ops
- drop "ide_" and "old_" infixes
- s/hpt3xxx_dma_ops/hpt37x_dma_ops/
- s/hpt370x_dma_ops/hpt370_dma_ops/
- use correct DMA ops for HPT302/N, HPT371/N and HPT374
- s/it821x_smart_dma_ops/it821x_pass_through_dma_ops/
v3:
* Two bugs slipped in v2 (noticed by Sergei):
- use correct DMA ops for HPT374 (for real this time)
- handle HPT370/HPT370A properly
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add IDE_HFLAG_SERIALIZE_DMA host flag to serialize ports
if DMA is available and handle it in ide_init_port().
* Convert sl82c105 host driver to use this new flag.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Make ide_hwif_setup_dma() return an error value.
* Pass 'const struct ide_port_info *d' instead of 'unsigned long dmabase'
to ->init_dma method and make it return an error value.
* Rename ide_get_or_set_dma_base() to ide_pci_dma_base(),
change ordering of its arguments and then export it.
* Export ide_pci_set_master().
* Do complete DMA setup inside ->init_dma method and update ->init_dma
users accordingly.
* Sanitize code for DMA setup in ide_init_port().
v2:
* Fix for CONFIG_BLK_DEV_IDEDMA_PCI=n configs
(from Jiri Slaby <jirislaby@gmail.com>):
Fix following compiler warning by returning EINVAL:
In file included from ANYTHING-INCLUDING-IDE.H:45:
include/linux/ide.h: In function ‘ide_hwif_setup_dma’:
include/linux/ide.h:1022: warning: no return statement in function returning non-void
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Export ide_allocate_dma_engine() and use it in trm290 host driver.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Use hwif->name instead of cds->name in ide_allocate_dma_engine().
* Use pci_name(dev) instead of cds->name in init_dma_pdc202xx().
* Remove no longer needed ->cds field from ide_hwif_t.
v2:
* scc_pata.c also needs to be updated now (noticed by Stephen Rothwell).
There should be no functional changes caused by this patch.
Cc: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Cc: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Always setup hwif->extra_base in ide_iomio_dma() and remove
no longer needed ->extra field from struct ide_port_info.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Remove no longer used ide_hwif_request_regions() and hwif_request_region().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Reserve PCI BARs 0-3 (0-1 for single port controllers) in
ide_pci_enable() and remove ide_hwif_request_regions() call
from ide_device_add_all() (also cleanup resource management
in scc_pata host driver).
* Fix handling of PCI BAR 4 in ide_pci_enable(), then cleanup
ide_iomio_dma() (+ init_hwif_trm290() in trm290 host driver)
and remove ide_release[_iomio]_dma().
v2:
* Fixup trm290 host driver.
v3:
* Because of scc_pata host driver changes we need to call
pci_request_selected_regions() also in setup_mmio_scc().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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All host drivers using ide_unregister()/module_exit() have been fixed
to manage resources themselves so this function can be removed now.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add 'unsigned long config' argument to ide_legacy_device_add()
for setting hwif->config_data.
* Use ide_find_port_slot() instead of ide_find_port() in
ide_legacy_device_add().
* Handle IDE_HFLAG_QD_2ND_PORT and IDE_HFLAG_SINGLE host flags in
ide_legacy_device_add().
* Convert qd65xx host driver to use ide_legacy_device_add().
v2:
* Update ali14xx, dtc2278, ht6560b and umc8672 host drivers.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Add ide_legacy_device_add() helper for use by legacy VLB host drivers
(+ convert them to use it).
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Update IDE PMAC host driver to use drive->noprobe instead of hwif->noprobe
and remove hwif->noprobe completely (it is always set to zero now).
There should be no functional changes caused by this patch.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Move hooks for port/host specific methods from ide_hwif_t to
'struct ide_port_ops'.
* Add 'const struct ide_port_ops *port_ops' to 'struct ide_port_info'
and ide_hwif_t.
* Update host drivers and core code accordingly.
While at it:
* Rename ata66_*() cable detect functions to *_cable_detect() to match
the standard naming. (Suggested by Sergei Shtylyov)
v2:
* Fix build for bast-ide. (Noticed by Andrew Morton)
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Avoid a call to find_first_bit if the bitmap size is know at
compile time and small enough to fit in a single long integer.
Modeled after an optimization in the original x86_64-specific
code.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Generic versions of __find_first_bit and __find_first_zero_bit
are introduced as simplified versions of __find_next_bit and
__find_next_zero_bit. Their compilation and use are guarded by
a new config variable GENERIC_FIND_FIRST_BIT.
The generic versions of find_first_bit and find_first_zero_bit
are implemented in terms of the newly introduced __find_first_bit
and __find_first_zero_bit.
This patch does not remove the i386-specific implementation,
but it does switch i386 to use the generic functions by setting
GENERIC_FIND_FIRST_BIT=y for X86_32.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This moves an optimization for searching constant-sized small
bitmaps form x86_64-specific to generic code.
On an i386 defconfig (the x86#testing one), the size of vmlinux hardly
changes with this applied. I have observed only four places where this
optimization avoids a call into find_next_bit:
In the functions return_unused_surplus_pages, alloc_fresh_huge_page,
and adjust_pool_surplus, this patch avoids a call for a 1-bit bitmap.
In __next_cpu a call is avoided for a 32-bit bitmap. That's it.
On x86_64, 52 locations are optimized with a minimal increase in
code size:
Current #testing defconfig:
146 x bsf, 27 x find_next_*bit
text data bss dec hex filename
5392637 846592 724424 6963653 6a41c5 vmlinux
After removing the x86_64 specific optimization for find_next_*bit:
94 x bsf, 79 x find_next_*bit
text data bss dec hex filename
5392358 846592 724424 6963374 6a40ae vmlinux
After this patch (making the optimization generic):
146 x bsf, 27 x find_next_*bit
text data bss dec hex filename
5392396 846592 724424 6963412 6a40d4 vmlinux
[ tglx@linutronix.de: build fixes ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-optimized-inlining
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-optimized-inlining:
generic: make optimized inlining arch-opt-in
x86: add optimized inlining
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Stephen Rothwell reported that linux-next did not build on powerpc64.
make optimized inlining dependent on architecture opt-in.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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add CONFIG_OPTIMIZE_INLINING=y.
allow gcc to optimize the kernel image's size by uninlining
functions that have been marked 'inline'. Previously gcc was
forced by Linux to always-inline these functions via a gcc
attribute:
#define inline inline __attribute__((always_inline))
Especially when the user has already selected
CONFIG_OPTIMIZE_FOR_SIZE=y this can make a huge difference in
kernel image size (using a standard Fedora .config):
text data bss dec hex filename
5613924 562708 3854336 10030968 990f78 vmlinux.before
5486689 562708 3854336 9903733 971e75 vmlinux.after
that's a 2.3% text size reduction (!).
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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All host drivers now either set hwif->mmio or reserve continuous
I/O resources so remove no longer needed hwif->straight8 flag
and never reached code for 'hwif->straight8 == 0' case.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Sergei suggested that it shouldn't be necessary + it had no effect
anyway since ide_id_dma_bug() is called earlier in ide_tune_dma().
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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include/linux/hdsmart.h is not used by the kernel and should therefore
be removed.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: "Robert P. J. Day" <rpjday@crashcourse.ca>,
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add IDE_HFLAG_QD_2ND_PORT host flag to indicate the need of skipping
first ide_hwifs[] slot for the second port of QD65xx controller.
* Handle this new host flag in ide_find_port_slot().
* Convert legacy VLB host drivers to use ide_find_port().
While at it:
* Fix couple of printk()-s in qd65xx host driver to not use hwif->name.
v2:
* Fix qd65xx.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Change ide_match_hwif() argument from 'u8 bootable' to
'struct ide_port_info *d'.
* Move ide_match_hwif() to ide-probe.c from setup-pci.c and rename
it to ide_find_port_slot(). Update some comments while at it.
* ide_find_port() can be now just a wrapper for ide_find_port_slot().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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No need for it nowadays so remove quirk code from ide_get_best_pio_mode()
and IDE_HFLAG_PIO_DOWNGRADE host flag.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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"bootable" should be the default behavior so replace
IDE_HFLAG_BOOTABLE host flag with IDE_HFLAG_NON_BOOTABLE.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Remove no longer needed matching against I/O base and 'base' argument.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
[PATCH] sanitize locate_fd()
[PATCH] sanitize unshare_files/reset_files_struct
[PATCH] sanitize handling of shared descriptor tables in failing execve()
[PATCH] close race in unshare_files()
[PATCH] restore sane ->umount_begin() API
cifs: timeout dfs automounts +little fix.
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (49 commits)
[POWERPC] Add zImage.iseries to arch/powerpc/boot/.gitignore
[POWERPC] bootwrapper: fix build error on virtex405-head.S
[POWERPC] 4xx: Fix 460GT support to not enable FPU
[POWERPC] 4xx: Add NOR FLASH entries to Canyonlands and Glacier dts
[POWERPC] Xilinx: of_serial support for Xilinx uart 16550.
[POWERPC] Xilinx: boot support for Xilinx uart 16550.
[POWERPC] celleb: Add support for PCI Express
[POWERPC] celleb: Move miscellaneous files for Beat
[POWERPC] celleb: Move a file for SPU on Beat
[POWERPC] celleb: Move files for Beat mmu and iommu
[POWERPC] celleb: Move files for Beat hvcall interfaces
[POWERPC] celleb: Move the SCC related code for celleb
[POWERPC] celleb: Move the files for celleb base support
[POWERPC] celleb: Consolidate io-workarounds code
[POWERPC] cell: Generalize io-workarounds code
[POWERPC] Add CONFIG_PPC_PSERIES_DEBUG to enable debugging for platforms/pseries
[POWERPC] Convert from DBG() to pr_debug() in platforms/pseries/
[POWERPC] Register udbg console early on pseries LPAR
[POWERPC] Mark udbg console as CON_ANYTIME, ie. callable early in boot
[POWERPC] Set udbg_console index to 0
...
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* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
leds: Add default-on trigger
leds: Document the context brightness_set needs
leds: Add new driver for the LEDs on the Freecom FSG-3
leds: Add support to leds with readable status
leds: enable support for blink_set() platform hook in leds-gpio
leds: Cleanup various whitespace and code style issues
leds: disable triggers on brightness set
leds: Add mail LED support for "Clevo D400P"
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git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-fixes:
sched: fix share (re)distribution
softlockup: fix NOHZ wakeup
seqlock: livelock fix
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
pata_bf54x: decrease count first.
sata_mv: re-enable hotplug, update TODO list
sata_mv: leave SError bits untouched in mv_err_intr
sata_mv: more interrupt handling rework
sata_mv: tidy host controller interrupt handling
sata_mv: simplify request/response queue handling
sata_mv: simplify freeze/thaw bit-shift calculations
sata_mv mask all interrupt coalescing bits
sata_mv more cosmetics
ata_piix: add Asus Eee 701 controller to short cable list
libata-eh set tf flags in NCQ EH result_tf
make sata_set_spd_needed() static
make sata_print_link_status() static
libata-acpi.c: remove unneeded #if's
sata_nv: make hardreset return -EAGAIN on success
ahci: retry enabling AHCI a few times before spitting out WARN_ON()
libata: make WARN_ON conditions in ata_sff_hsm_move() more strict
ATA/IDE: fix platform driver hotplug/coldplug
sata_sis: SCR accessors return -EINVAL when requested SCR isn't available
libata: functions with definition should not be extern
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (120 commits)
usb: don't update devnum for wusb devices
wusb: make ep0_reinit available for modules
wusb: devices dont use a set address
wusb: teach choose_address() about wireless devices
wusb: add link wusb-usb device
wusb: add authenticathed bit to usb_dev
USB: remove unnecessary type casting of urb->context
usb serial: more fixes and groundwork for tty changes
USB: replace remaining __FUNCTION__ occurrences
USB: usbfs: export the URB_NO_INTERRUPT flag to userspace
USB: fix compile problems in ehci-hcd
USB: ehci: qh_completions cleanup and bugfix
USB: cdc-acm: signedness fix
USB: add documentation about callbacks
USB: don't explicitly reenable root-hub status interrupts
USB: OHCI: turn off RD when remote wakeup is disabled
USB: HCDs use the do_remote_wakeup flag
USB: g_file_storage: ignore bulk-out data after invalid CBW
USB: serial: remove endpoints setting checks from core and header
USB: serial: remove unneeded number endpoints settings
...
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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: (40 commits)
Input: wacom - add support for Cintiq 20WSX
Input: ucb1400_ts - IRQ probe fix
Input: at32psif - update MODULE_AUTHOR with new email
Input: mac_hid - add lockdep annotation to emumousebtn
Input: i8042 - fix incorrect usage of strncpy and strncat
Input: bf54x-keys - add infrastructure for keypad wakeups
Input: add MODULE_ALIAS() to hotpluggable platform modules
Input: drivers/char/keyboard.c - use time_after
Input: fix ordering in joystick Makefile
Input: wm97xx-core - support use as a wakeup source
Input: wm97xx-core - use IRQF_SAMPLE_RANDOM
Input: wm97xx-core - only schedule interrupt handler if not already scheduled
Input: add Zhen Hua driver
Input: aiptek - add support for Genius G-PEN 560 tablet
Input: wacom - implement suspend and autosuspend
Input: xpad - set proper buffer length for outgoing requests
Input: omap-keypad - fix build warning
Input: gpio_keys - irq handling cleanup
Input: add PS/2 serio driver for AVR32 devices
Input: put ledstate in the keyboard notifier
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* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (24 commits)
dm crypt: add documentation
dm: remove md argument from specific_minor
dm table: remove unused dm_create_error_table
dm table: drop void suspend_targets return
dm: unplug queues in threads
dm raid1: use timer
dm: move include files
dm kcopyd: rename
dm: expose macros
dm kcopyd: remove redundant client counting
dm kcopyd: private mempool
dm kcopyd: per device
dm log: make module use tracking internal
dm log: move register functions
dm log: clean interface
dm kcopyd: clean interface
dm io: clean interface
dm io: rename error to error_bits
dm snapshot: store pointer to target instance
dm log: move dirty region log code into separate module
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (48 commits)
net: Fix wrong interpretation of some copy_to_user() results.
xfrm: alg_key_len & alg_icv_len should be unsigned
[netdrvr] tehuti: move ioctl perm check closer to function start
ipv6: Fix typo in net/ipv6/Kconfig
via-velocity: fix vlan receipt
tg3: sparse cleanup
forcedeth: realtek phy crossover detection
ibm_newemac: Increase MDIO timeouts
gianfar: Fix skb allocation strategy
netxen: reduce stack usage of netxen_nic_flash_print
smc911x: test after postfix decrement fails in smc911x_{reset,drop_pkt}
net drivers: fix platform driver hotplug/coldplug
forcedeth: new backoff implementation
ehea: make things static
phylib: Add support for board-level PHY fixups
[netdrvr] atlx: code movement: move atl1 parameter parsing
atlx: remove flash vendor parameter
korina: misc cleanup
korina: fix misplaced return statement
WAN: Fix confusing insmod error code for C101 too.
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* git://git.infradead.org/mtd-2.6: (82 commits)
[MTD] m25p80: Add Support for ATMEL AT25DF641 64-Megabit SPI Flash
[MTD] m25p80: add FAST_READ access support to M25Pxx
[MTD] [NAND] bf5xx_nand: Avoid crash if bfin_mac is installed.
[MTD] [NAND] at91_nand: control NCE signal
[MTD] [NAND] AT91 hardware ECC compile fix for at91sam9263 / at91sam9260
[MTD] [NAND] Hardware ECC controller on at91sam9263 / at91sam9260
[JFFS2] Introduce dbg_readinode2 log level, use it to shut read_dnode() up
[JFFS2] Fix jffs2_reserve_space() when all blocks are pending erasure.
[JFFS2] Add erase_checking_list to hold blocks being marked.
UBI: add a message
[JFFS2] Return values of jffs2_block_check_erase error paths
[MTD] Clean up AR7 partition map support
[MTD] [NOR] Fix Intel CFI driver for collie flash
[JFFS2] Finally remove redundant ref->__totlen field.
[JFFS2] Honour TEST_TOTLEN macro in debugging code. ref->__totlen is going!
[JFFS2] Add paranoia debugging for superblock counts
[JFFS2] Fix free space leak with in-band cleanmarkers
[JFFS2] Self-sufficient #includes in jffs2_fs_i.h: include <linux/mutex.h>
[MTD] [NAND] Verify probe by retrying to checking the results match
[MTD] [NAND] S3C2410 Allow ECC disable to be specified by the board
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Presumably this is left over from earlier drafts of v4, which listed
TIME_METADATA as writeable. It's read-only in rfc 3530, and shouldn't
be modifiable anyway.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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The file_lock structure is used both as a heavy-weight representation of
an active lock, with pointers to reference-counted structures, etc., and
as a simple container for parameters that describe a file lock.
The conflicting lock returned from __posix_lock_file is an example of
the latter; so don't call the filesystem or lock manager callbacks when
copying to it. This also saves the need for an unnecessary
locks_init_lock in the nfsv4 server.
Thanks to Trond for pointing out the error.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
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Add /proc/fs/nfsd/unlock_filesystem, which allows e.g.:
shell> echo /mnt/sfs1 > /proc/fs/nfsd/unlock_filesystem
so that a filesystem can be unmounted before allowing a peer nfsd to
take over nfs service for the filesystem.
Signed-off-by: S. Wendy Cheng <wcheng@redhat.com>
Cc: Lon Hohberger <lhh@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
fs/lockd/svcsubs.c | 66 +++++++++++++++++++++++++++++++++++++++-----
fs/nfsd/nfsctl.c | 65 +++++++++++++++++++++++++++++++++++++++++++
include/linux/lockd/lockd.h | 7 ++++
3 files changed, 131 insertions(+), 7 deletions(-)
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For high-availability NFS service, we generally need to be able to drop
file locks held on the exported filesystem before moving clients to a
new server. Currently the only way to do that is by shutting down lockd
entirely, which is often undesireable (for example, if you want to
continue exporting other filesystems).
This patch allows the administrator to release all locks held by clients
accessing the client through a given server ip address, by echoing that
address to a new file, /proc/fs/nfsd/unlock_ip, as in:
shell> echo 10.1.1.2 > /proc/fs/nfsd/unlock_ip
The expected sequence of events can be:
1. Tear down the IP address
2. Unexport the path
3. Write IP to /proc/fs/nfsd/unlock_ip to unlock files
4. Signal peer to begin take-over.
For now we only support IPv4 addresses and NFSv2/v3 (NFSv4 locks are not
affected).
Also, if unmounting the filesystem is required, we assume at step 3 that
clients using the given server ip are the only clients holding locks on
the given filesystem; otherwise, an additional patch is required to
allow revoking all locks held by lockd on a given filesystem.
Signed-off-by: S. Wendy Cheng <wcheng@redhat.com>
Cc: Lon Hohberger <lhh@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
fs/lockd/svcsubs.c | 66 +++++++++++++++++++++++++++++++++++++++-----
fs/nfsd/nfsctl.c | 65 +++++++++++++++++++++++++++++++++++++++++++
include/linux/lockd/lockd.h | 7 ++++
3 files changed, 131 insertions(+), 7 deletions(-)
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* let unshare_files() give caller the displaced files_struct
* don't bother with grabbing reference only to drop it in the
caller if it hadn't been shared in the first place
* in that form unshare_files() is trivially implemented via
unshare_fd(), so we eliminate the duplicate logics in fork.c
* reset_files_struct() is not just only called for current;
it will break the system if somebody ever calls it for anything
else (we can't modify ->files of somebody else). Lose the
task_struct * argument.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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