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* 'for-upstream' of git://openrisc.net/jonas/linux: (24 commits)
OpenRISC: Add MAINTAINERS entry
OpenRISC: Miscellaneous
OpenRISC: Library routines
OpenRISC: Headers
OpenRISC: Traps
OpenRISC: Module support
OpenRISC: GPIO
OpenRISC: Scheduling/Process management
OpenRISC: Idle/Power management
OpenRISC: System calls
OpenRISC: IRQ
OpenRISC: Timekeeping
OpenRISC: DMA
OpenRISC: PTrace
OpenRISC: Build infrastructure
OpenRISC: Signal handling
OpenRISC: Memory management
OpenRISC: Device tree
OpenRISC: Boot code
iomap: make IOPORT/PCI mapping functions conditional
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* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
modpost: Fix modpost's license checking V3
module: add /sys/module/<name>/uevent files
module: change attr callbacks to take struct module_kobject
modules: make arch's use default loader hooks
modules: add default loader hook implementations
param: fix return value handling in param_set_*
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* 'kvm-updates/3.1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (143 commits)
KVM: IOMMU: Disable device assignment without interrupt remapping
KVM: MMU: trace mmio page fault
KVM: MMU: mmio page fault support
KVM: MMU: reorganize struct kvm_shadow_walk_iterator
KVM: MMU: lockless walking shadow page table
KVM: MMU: do not need atomicly to set/clear spte
KVM: MMU: introduce the rules to modify shadow page table
KVM: MMU: abstract some functions to handle fault pfn
KVM: MMU: filter out the mmio pfn from the fault pfn
KVM: MMU: remove bypass_guest_pf
KVM: MMU: split kvm_mmu_free_page
KVM: MMU: count used shadow pages on prepareing path
KVM: MMU: rename 'pt_write' to 'emulate'
KVM: MMU: cleanup for FNAME(fetch)
KVM: MMU: optimize to handle dirty bit
KVM: MMU: cache mmio info on page fault path
KVM: x86: introduce vcpu_mmio_gva_to_gpa to cleanup the code
KVM: MMU: do not update slot bitmap if spte is nonpresent
KVM: MMU: fix walking shadow page table
KVM guest: KVM Steal time registration
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git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
* 'upstream/xen-tracing2' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen:
xen/trace: use class for multicall trace
xen/trace: convert mmu events to use DECLARE_EVENT_CLASS()/DEFINE_EVENT()
xen/multicall: move *idx fields to start of mc_buffer
xen/multicall: special-case singleton hypercalls
xen/multicalls: add unlikely around slowpath in __xen_mc_entry()
xen/multicalls: disable MC_DEBUG
xen/mmu: tune pgtable alloc/release
xen/mmu: use extend_args for more mmuext updates
xen/trace: add tlb flush tracepoints
xen/trace: add segment desc tracing
xen/trace: add xen_pgd_(un)pin tracepoints
xen/trace: add ptpage alloc/release tracepoints
xen/trace: add mmu tracepoints
xen/trace: add multicall tracing
xen/trace: set up tracepoint skeleton
xen/multicalls: remove debugfs stats
trace/xen: add skeleton for Xen trace events
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* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (34 commits)
crypto: caam - ablkcipher support
crypto: caam - faster aead implementation
crypto: caam - structure renaming
crypto: caam - shorter names
crypto: talitos - don't bad_key in ablkcipher setkey
crypto: talitos - remove unused giv from ablkcipher methods
crypto: talitos - don't set done notification in hot path
crypto: talitos - ensure request ordering within a single tfm
crypto: gf128mul - fix call to memset()
crypto: s390 - support hardware accelerated SHA-224
crypto: algif_hash - Handle initial af_alg_make_sg error correctly
crypto: sha1_generic - use SHA1_BLOCK_SIZE
hwrng: ppc4xx - add support for ppc4xx TRNG
crypto: crypto4xx - Perform read/modify/write on device control register
crypto: caam - fix build warning when DEBUG_FS not configured
crypto: arc4 - Fixed coding style issues
crypto: crc32c - Fixed coding style issue
crypto: omap-sham - do not schedule tasklet if there is no active requests
crypto: omap-sham - clear device flags when finishing request
crypto: omap-sham - irq handler must not clear error code
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The commit f02e8a6 sorts symbols placing each of them in its own elf section.
The sorting and merging into the canonical sections are done by the linker.
Unfortunately modpost to generate Module.symvers file parses vmlinux
(already linked) and all modules object files (which aren't linked yet).
These aren't sanitized by the linker yet. That breaks modpost that can't
detect license properly for modules. This patch makes modpost aware of
the new exported symbols structure.
Thanks to Arnaud Lacombe <lacombar@gmail.com> and Anders Kaseorg
<andersk@ksplice.com> for providing useful suggestions about code.
This work was supported by a hardware donation from the CE Linux Forum.
Reported-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Userspace wants to manage module parameters with udev rules.
This currently only works for loaded modules, but not for
built-in ones.
To allow access to the built-in modules we need to
re-trigger all module load events that happened before any
userspace was running. We already do the same thing for all
devices, subsystems(buses) and drivers.
This adds the currently missing /sys/module/<name>/uevent files
to all module entries.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (split & trivial fix)
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This simplifies the next patch, where we have an attribute on a
builtin module (ie. module == NULL).
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (split into 2)
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This patch removes all the module loader hook implementations in the
architecture specific code where the functionality is the same as that
now provided by the recently added default hooks.
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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The module loader code allows architectures to hook into the code by
providing a small number of entry points that each arch must implement.
This patch provides __weakly linked generic implementations of these
entry points for architectures that don't need to do anything special.
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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In STANDARD_PARAM_DEF, param_set_* handles the case in which strtolfn
returns -EINVAL but it may return -ERANGE. If it returns -ERANGE,
param_set_* may set uninitialized value to the paramerter. We should handle
both cases.
The one of the cases in which strtolfn() returns -ERANGE is following:
*Type of module parameter is long
*Set the parameter more than LONG_MAX
Signed-off-by: Satoru Moriya <satoru.moriya@hds.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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IOMMU interrupt remapping support provides a further layer of
isolation for device assignment by preventing arbitrary interrupt
block DMA writes by a malicious guest from reaching the host. By
default, we should require that the platform provides interrupt
remapping support, with an opt-in mechanism for existing behavior.
Both AMD IOMMU and Intel VT-d2 hardware support interrupt
remapping, however we currently only have software support on
the Intel side. Users wishing to re-enable device assignment
when interrupt remapping is not supported on the platform can
use the "allow_unsafe_assigned_interrupts=1" module option.
[avi: break long lines]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Add tracepoints to trace mmio page fault
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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The idea is from Avi:
| We could cache the result of a miss in an spte by using a reserved bit, and
| checking the page fault error code (or seeing if we get an ept violation or
| ept misconfiguration), so if we get repeated mmio on a page, we don't need to
| search the slot list/tree.
| (https://lkml.org/lkml/2011/2/22/221)
When the page fault is caused by mmio, we cache the info in the shadow page
table, and also set the reserved bits in the shadow page table, so if the mmio
is caused again, we can quickly identify it and emulate it directly
Searching mmio gfn in memslots is heavy since we need to walk all memeslots, it
can be reduced by this feature, and also avoid walking guest page table for
soft mmu.
[jan: fix operator precedence issue]
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Reorganize it for good using the cache
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Use rcu to protect shadow pages table to be freed, so we can safely walk it,
it should run fastly and is needed by mmio page fault
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Now, the spte is just from nonprsent to present or present to nonprsent, so
we can use some trick to set/clear spte non-atomicly as linux kernel does
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Introduce some interfaces to modify spte as linux kernel does:
- mmu_spte_clear_track_bits, it set the spte from present to nonpresent, and
track the stat bits(accessed/dirty) of spte
- mmu_spte_clear_no_track, the same as mmu_spte_clear_track_bits except
tracking the stat bits
- mmu_spte_set, set spte from nonpresent to present
- mmu_spte_update, only update the stat bits
Now, it does not allowed to set spte from present to present, later, we can
drop the atomicly opration for X86_32 host, and it is the preparing work to
get spte on X86_32 host out of the mmu lock
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Introduce handle_abnormal_pfn to handle fault pfn on page fault path,
introduce mmu_invalid_pfn to handle fault pfn on prefetch path
It is the preparing work for mmio page fault support
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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If the page fault is caused by mmio, the gfn can not be found in memslots, and
'bad_pfn' is returned on gfn_to_hva path, so we can use 'bad_pfn' to identify
the mmio page fault.
And, to clarify the meaning of mmio pfn, we return fault page instead of bad
page when the gfn is not allowd to prefetch
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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The idea is from Avi:
| Maybe it's time to kill off bypass_guest_pf=1. It's not as effective as
| it used to be, since unsync pages always use shadow_trap_nonpresent_pte,
| and since we convert between the two nonpresent_ptes during sync and unsync.
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Split kvm_mmu_free_page to kvm_mmu_isolate_page and
kvm_mmu_free_page
One is used to remove the page from cache under mmu lock and the other is
used to free page table out of mmu lock
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Move counting used shadow pages from commiting path to preparing path to
reduce tlb flush on some paths
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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If 'pt_write' is true, we need to emulate the fault. And in later patch, we
need to emulate the fault even though it is not a pt_write event, so rename
it to better fit the meaning
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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gw->pte_access is the final access permission, since it is unified with
gw->pt_access when we walked guest page table:
FNAME(walk_addr_generic):
pte_access = pt_access & FNAME(gpte_access)(vcpu, pte, true);
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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If dirty bit is not set, we can make the pte access read-only to avoid handing
dirty bit everywhere
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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If the page fault is caused by mmio, we can cache the mmio info, later, we do
not need to walk guest page table and quickly know it is a mmio fault while we
emulate the mmio instruction
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Introduce vcpu_mmio_gva_to_gpa to translate the gva to gpa, we can use it
to cleanup the code between read emulation and write emulation
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Set slot bitmap only if the spte is present
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Properly check the last mapping, and do not walk to the next level if last spte
is met
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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This patch implements the kvm bits of the steal time infrastructure.
The most important part of it, is the steal time clock. It is an
continuous clock that shows the accumulated amount of steal time
since vcpu creation. It is supposed to survive cpu offlining/onlining.
[marcelo: fix build with CONFIG_KVM_GUEST=n]
Signed-off-by: Glauber Costa <glommer@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Tested-by: Eric B Munson <emunson@mgebm.net>
CC: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Avi Kivity <avi@redhat.com>
CC: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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of_pci.c references symbols from linux/of.h.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (43 commits)
Blackfin: spi-docs: further clarify GPIO CS behavior with various modes
Blackfin: boards: fix pcm device name
Blackfin: SMP: punt unused atomic_test_mask helper
Blackfin: irqs: do not trace arch_local_{*,irq_*} functions
Blackfin: bf526: restrict reboot workaround to 0.0 silicon
Blackfin: bf51x: fix alternative portmux options
Blackfin: bf54x: fix GPIO resume code
Blackfin: dpmc: optimize SDRAM programming slightly
Blackfin: dpmc: don't save/restore scratch registers
Blackfin: bf538: pull gpio/port logic out of core hibernate paths
Blackfin: dpmc: optimize hibernate/resume path
Blackfin: dpmc: do not save/restore EVT0/EVT1/EVT4 when hibernating
Blackfin: dpmc: relocate hibernate helper macros
Blackfin: dpmc: omit RETE/RETN when hibernating
Blackfin: dpmc: optimize SIC_IWR programming a little
Blackfin: gpio/ints: generalize pint logic
Blackfin: dpmc: bind to MMR names and not CPUs
Blackfin: debug-mmrs: generalize pint logic
Blackfin: bf54x: switch to common pint MMR struct
Blackfin: bf54x: tweak MMR pint names
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regulator: Convert tps65023 to use regmap API
regmap: Add SPI bus support
regmap: Add I2C bus support
regmap: Add generic non-memory mapped register access API
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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (77 commits)
[SCSI] fix crash in scsi_dispatch_cmd()
[SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise
[SCSI] bnx2i: Fixed kernel panic due to illegal usage of sc->request->cpu
[SCSI] bfa: Update the driver version to 3.0.2.1
[SCSI] bfa: Driver and BSG enhancements.
[SCSI] bfa: Added support to query PHY.
[SCSI] bfa: Added HBA diagnostics support.
[SCSI] bfa: Added support for flash configuration
[SCSI] bfa: Added support to obtain SFP info.
[SCSI] bfa: Added support for CEE info and stats query.
[SCSI] bfa: Extend BSG interface.
[SCSI] bfa: FCS bug fixes.
[SCSI] bfa: DMA memory allocation enhancement.
[SCSI] bfa: Brocade-1860 Fabric Adapter vHBA support.
[SCSI] bfa: Brocade-1860 Fabric Adapter PLL init fixes.
[SCSI] bfa: Added Fabric Assigned Address(FAA) support
[SCSI] bfa: IOC bug fixes.
[SCSI] bfa: Enable ASIC block configuration and query.
[SCSI] bnx2i: Updated copyright and bump version
[SCSI] bnx2i: Modified to skip CNIC registration if iSCSI is not supported
...
Fix up some trivial conflicts in:
- drivers/scsi/bnx2fc/{bnx2fc.h,bnx2fc_fcoe.c}:
Crazy broadcom version number conflicts
- drivers/target/tcm_fc/tfc_cmd.c
Just trivial cleanups done on adjacent lines
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (297 commits)
ALSA: asihpi - Replace with snd_ctl_boolean_mono_info()
ALSA: asihpi - HPI version 4.08
ALSA: asihpi - Add volume mute controls
ALSA: asihpi - Control name updates
ALSA: asihpi - Use size_t for sizeof result
ALSA: asihpi - Explicitly include mutex.h
ALSA: asihpi - Add new node and message defines
ALSA: asihpi - Make local function static
ALSA: asihpi - Fix minor typos and spelling
ALSA: asihpi - Remove unused structures, macros and functions
ALSA: asihpi - Remove spurious adapter index check
ALSA: asihpi - Revise snd_pcm_debug_name, get rid of DEBUG_NAME macro
ALSA: asihpi - DSP code loader API now independent of OS
ALSA: asihpi - Remove controlex structs and associated special data transfer code
ALSA: asihpi - Increase request and response buffer sizes
ALSA: asihpi - Give more meaningful name to hpi request message type
ALSA: usb-audio - Add quirk for Roland / BOSS BR-800
ALSA: hda - Remove a superfluous argument of via_auto_init_output()
ALSA: hda - Fix indep-HP path (de-)activation for VT1708* codecs
ALSA: hda - Add documentation for codec-specific mixer controls
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
net/9p: Fix the msize calculation.
fs/9p: add 9P2000.L unlinkat operation
fs/9p: add 9P2000.L renameat operation
fs/9p: Always ask new inode in create
fs/9p: Clean-up get_protocol_version() to use strcmp
fs/9p: Fix invalid mount options/args
fs/9p: When doing inode lookup compare qid details and inode mode bits.
fs/9p: Fid is not valid after a failed clunk.
net/9p: Remove structure not used in the code
VirtIO can transfer VIRTQUEUE_NUM of pages.
Fix the size of receive buffer packing onto VirtIO ring.
9p: clean up packet dump code
fs/9p: remove rename work around in 9p
net/9p: fix client code to fail more gracefully on protocol error
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Refresh sysctl/kernel.txt. More specifically,
- drop stale index entries
- sync and sort index and entries
- reflow sticking out paragraphs to colwidth 72
- correct typos
- cleanup whitespace
Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Only the root cpuset has cpuset.memory_pressure_enabled flag,
but not the only one.
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Must echo a task id to the cgroups' tasks file, but not to a directory.
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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'x86-kexec-for-linus', 'x86-platform-for-linus', 'x86-quirks-for-linus', 'x86-tsc-for-linus' and 'x86-smpboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-detect-hyper-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, hyper: Change hypervisor detection order
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86-32, fpu: Fix DNA exception during check_fpu()
* 'x86-kexec-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
kexec, x86: Fix incorrect jump back address if not preserving context
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, config: Introduce an INTEL_MID configuration
* 'x86-quirks-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, quirks: Use pci_dev->revision
* 'x86-tsc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: tsc: Remove unneeded DMI-based blacklisting
* 'x86-smpboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, boot: Wait for boot cpu to show up if nr_cpus limit is about to hit
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, build: Do not set the root_dev field in bzImage
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-atomic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Add support for cmpxchg_double
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
clocksource: apb: Share APB timer code with other platforms
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'irq-core-for-linus' and 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
um: Make rwsem.S depend on CONFIG_RWSEM_XCHGADD_ALGORITHM
* 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
debug: Make CONFIG_EXPERT select CONFIG_DEBUG_KERNEL to unhide debug options
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
genirq: Remove unused CHECK_IRQ_PER_CPU()
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf tools, x86: Fix 32-bit compile on 64-bit system
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msize represents the maximum PDU size that includes P9_IOHDRSZ.
Signed-off-by: Venkateswararao Jujjuri "<jvrao@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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unlinkat - Remove a directory entry
size[4] Tunlinkat tag[2] dirfid[4] name[s] flag[4]
size[4] Runlinkat tag[2]
older Tremove have the below request format
size[4] Tremove tag[2] fid[4]
The remove message is used to remove a directory entry either file or directory
The remove opreation is actually a directory opertation and should ideally have
dirfid, if not we cannot represent the fid on server with anything other than
name. We will have to derive the directory name from fid in the Tremove request.
NOTE: The operation doesn't clunk the unlink fid.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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renameat - change name of file or directory
size[4] Trenameat tag[2] olddirfid[4] oldname[s] newdirfid[4] newname[s]
size[4] Rrenameat tag[2]
older Trename have the below request format
size[4] Trename tag[2] fid[4] newdirfid[4] name[s]
The rename message is used to change the name of a file, possibly moving it
to a new directory. The rename opreation is actually a directory opertation
and should ideally have olddirfid, if not we cannot represent the fid on server
with anything other than name. We will have to derive the old directory name
from fid in the Trename request.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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This make sure we don't end up reusing the unlinked inode object.
The ideal way is to use inode i_generation. But i_generation is
not available in userspace always.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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