05 Mar, 2008
29 commits
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The memory controller has a requirement that while writing values, we need
to use echo -n. This patch fixes the problem and makes the UI more consistent.Signed-off-by: Balbir Singh
Cc: Paul Menage
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit 2f569afd9ced9ebec9a6eb3dbf6f83429be0a7b4
(CONFIG_HIGHPTE vs. sub-page page tables) introduced use of
inc_zone_page_state and dec_zone_page_state in include/linux/mm.h.Those are defined in include/linux/vmstat.h, but after it includes
mm.h, making it impossible to include vmstat.h since inc_zone_page_state
and dec_zone_page_state then would be undefined.arch/cris/arch-v10/kernel/time.c does just this, which makes the
CRIS v10 build break with the following error:...
CC arch/cris/arch-v10/kernel/time.o
In file included from include/linux/vmstat.h:7,
from arch/cris/arch-v10/kernel/time.c:17:
include/linux/mm.h: In function 'pgtable_page_ctor':
include/linux/mm.h:902: error: implicit declaration of function 'inc_zone_page_state'
include/linux/mm.h: In function 'pgtable_page_dtor':
include/linux/mm.h:908: error: implicit declaration of function 'dec_zone_page_state'
make[2]: *** [arch/cris/arch-v10/kernel/time.o] Error 1
make[1]: *** [arch/cris/arch-v10/kernel] Error 2
make: *** [sub-make] Error 2
...By changing kernel/time.c to include linux/mm.h, the build succeeds.
Signed-off-by: Jesper Nilsson
Cc: Mikael Starvik
Cc: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Thomas Lehmann verified that this
entry works.Signed-off-by: Bjorn Helgaas
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This version brings a number of minor fixes updating the type detector and
the unary tracker. It also brings a few small fixes for false positives.
It also reverts the --file warning. Of note:- limit CVS checks to added lines
- improved type detections
- fixes to the unary trackerAndy Whitcroft (13):
Version: 0.15
EXPORT_SYMBOL checks need to accept array variables
export checks must match DECLARE_foo and LIST_HEAD
possible types: cleanup debugging missing line
values: track values through preprocessor conditional paths
typeof is actually a type
possible types: detect definitions which cross lines
values: include line numbers on value debug information
values: ensure we find correctly record pending brackets
values: simplify the brace history stack
CVS keyword checks should only apply to added lines
loosen spacing for comments
allow braces for single statement blocks with multiline conditionalsHarvey Harrison (1):
checkpatch: remove fastcallIngo Molnar (1):
checkpatch.pl: revert wrong --file messageUwe Kleine-Koenig (1):
fix typo "goot" -> "good"Signed-off-by: Andy Whitcroft
Cc: Randy Dunlap
Cc: Joel Schopp
Cc: Ingo Molnar
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The documentation says the default value of notify_on_release of a child
cgroup is inherited from its parent, which is reasonable, but the
implementation just sets the flag disabled.Signed-off-by: Li Zefan
Acked-by: Paul Menage
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
P4 has been coming out as CPU_FAMILY=4 instead of 6: fix MPENTIUM4 typo.
Signed-off-by: Hugh Dickins
Signed-off-by: Linus Torvalds -
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
scsi: missing add of padded bytes to io completion byte count -
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
[PATCH] fs/ocfs2/aops.c: Correct use of ! and &
[2.6 patch] ocfs2: make dlm_do_assert_master() static
[2.6 patch] make ocfs2_downconvert_thread() static
[2.6 patch] fs/ocfs2/: possible cleanups
[PATCH] ocfs2: le*_add_cpu conversion
ocfs2: Fix writeout in ocfs2_data_convert_worker()
ocfs2: Enable localalloc for local mounts -
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
ioat: fix 'ack' handling, driver must ensure that 'ack' is zero
dmaengine: fix sparse warning
fsldma: do not cleanup descriptors in hardirq context
dmaengine: add driver for Freescale MPC85xx DMA controller -
Original patch from Tejun Heo but should use ->extra_len
and not ->data_len, as we would then overshoot the original request size.Signed-off-by: Jens Axboe
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…linux-2.6-sched-devel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel:
sched: revert load_balance_monitor() changes -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
x86/xen: fix DomU boot problem
x86: not set node to cpu_to_node if the node is not online
x86, i387: fix ptrace leakage using init_fpu() -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
x86: disable KVM for Voyager and friends
KVM: VMX: Avoid rearranging switched guest msrs while they are loaded
KVM: MMU: Fix race when instantiating a shadow pte
KVM: Route irq 0 to vcpu 0 exclusively
KVM: Avoid infinite-frequency local apic timer
KVM: make MMU_DEBUG compile again
KVM: move alloc_apic_access_page() outside of non-preemptable region
KVM: SVM: fix Windows XP 64 bit installation crash
KVM: remove the usage of the mmap_sem for the protection of the memory slots.
KVM: emulate access to MSR_IA32_MCG_CTL
KVM: Make the supported cpuid list a host property rather than a vm property
KVM: Fix kvm_arch_vcpu_ioctl_set_sregs so that set_cr0 works properly
KVM: SVM: set NM intercept when enabling CR0.TS in the guest
KVM: SVM: Fix lazy FPU switching -
Initialize 'ack' to zero in case the descriptor has been recycled.
Prevents "kernel BUG at crypto/async_tx/async_xor.c:185!"
Signed-off-by: Dan Williams
Acked-by: Shannon Nelson
Cc: stable@kernel.org -
include/linux/dmaengine.h:364:2: warning: returning void-valued expression
Signed-off-by: Dan Williams
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"Cleaning" descriptors involves calling pending callbacks and clients
assume that their callback will only ever happen in softirq context.
Delay cleanup to the tasklet.Signed-off-by: Dan Williams
Acked-by: Zhang Wei -
The driver implements DMA engine API for Freescale MPC85xx DMA controller,
which could be used by devices in the silicon. The driver supports the
Basic mode of Freescale MPC85xx DMA controller. The MPC85xx processors
supported include MPC8540/60, MPC8555, MPC8548, MPC8641 and so on.The MPC83xx(MPC8349, MPC8360) are also supported.
[kamalesh@linux.vnet.ibm.com: build fix]
[dan.j.williams@intel.com: merge mm fixes, rebase on async_tx-2.6.25]
Signed-off-by: Zhang Wei
Signed-off-by: Ebony Zhu
Acked-by: Kumar Gala
Cc: Shannon Nelson
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Signed-off-by: Andrew Morton
Signed-off-by: Dan Williams -
The following commits cause a number of regressions:
commit 58e2d4ca581167c2a079f4ee02be2f0bc52e8729
Author: Srivatsa Vaddagiri
Date: Fri Jan 25 21:08:00 2008 +0100
sched: group scheduling, change how cpu load is calculatedcommit 6b2d7700266b9402e12824e11e0099ae6a4a6a79
Author: Srivatsa Vaddagiri
Date: Fri Jan 25 21:08:00 2008 +0100
sched: group scheduler, fix fairness of cpu bandwidth allocation for task groupsNamely:
- very frequent wakeups on SMP, reported by PowerTop users.
- cacheline trashing on (large) SMP
- some latencies larger than 500msWhile there is a mergeable patch to fix the latter, the former issues
are not fixable in a manner suitable for .25 (we're at -rc3 now).Hence we revert them and try again in v2.6.26.
Signed-off-by: Peter Zijlstra
CC: Srivatsa Vaddagiri
Tested-by: Alexey Zaytsev
Signed-off-by: Ingo Molnar -
Construct Xen guest e820 map with a hole between 640K-1M.
It's pure luck that Xen kernels have gotten away with it in the past.
The patch below seems like the right thing to do. It certainly boots in
a domU without the DMI problem (without any of the other related patches
such as Alexander's).Signed-off-by: Ian Campbell
Cc: H. Peter Anvin
Cc: Jeremy Fitzhardinge
Tested-by: Mark McLoughlin
Acked-by: Mark McLoughlin
Signed-off-by: Ingo Molnar
Acked-by: Thomas Gleixner -
resolve boot problem reported by Mel Gorman:
http://lkml.org/lkml/2008/2/13/404
init_cpu_to_node will use cpu->apic (from MADT or mptable) and
apic->node(from SRAT or AMD config space with k8_bus_64.c) to have
cpu->node mapping, and later identify_cpu will overwrite them
again...(with nearby_node...)this patch checks if the node is online, otherwise it will not
update cpu_node map. so keep cpu_node map to online node before
identify_cpu..., to prevent possible error.Signed-off-by: Yinghai Lu
Signed-off-by: Ingo Molnar
Acked-by: Thomas Gleixner -
This bug got introduced by the recent i387 merge:
commit 4421011120b2304e5c248ae4165a2704588aedf1
Author: Roland McGrath
Date: Wed Jan 30 13:31:50 2008 +0100x86: x86 i387 user_regset
Current usage of unlazy_fpu() in ptrace specific routines is wrong.
unlazy_fpu() will not init fpu if the task never used math. So the
ptrace calls can expose the parent tasks FPU data in some cases.Replace it with the init_fpu() which will init the math state, if the
task never used math before.Signed-off-by: Suresh Siddha
Signed-off-by: Ingo Molnar
Acked-by: Thomas Gleixner -
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
block: fix blkdev_issue_flush() not detecting and passing EOPNOTSUPP back
block: fix shadowed variable warning in blk-map.c
block: remove extern on function definition
cciss: remove READ_AHEAD define and use block layer defaults
make cdrom.c:check_for_audio_disc() static
block/genhd.c: proper externs
unexport blk_rq_map_user_iov
unexport blk_{get,put}_queue
block/genhd.c: cleanups
proper prototype for blk_dev_init()
block/blk-tag.c should #include "blk.h"
Fix DMA access of block device in 64-bit kernel on some non-x86 systems with 4GB or upper 4GB memory
block: separate out padding from alignment
block: restore the meaning of rq->data_len to the true data length
resubmit: cciss: procfs updates to display info about many
splice: only return -EAGAIN if there's hope of more data
block: fix kernel-docbook parameters and files -
m68k{,nommu}: Wire up the new timerfd syscalls, which were introduced in
commit 4d672e7ac79b5ec5cdc90e450823441e20464691 ("timerfd: new timerfd API").Signed-off-by: Geert Uytterhoeven
Acked-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
The FEC driver has a common interrupt handler for all interrupt event
types. It is raised on a number of distinct interrupt vectors.
This handler can't be re-entered while processing an interrupt, so
make sure all requested vectors are flagged as IRQF_DISABLED.Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Need a declaration of do_IRQ for the 68328 interrupt handling code.
It is common to all m68knommu targets, so a common declaration makes
sense.Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Remove duplicate hw_tick() function from 68328 timers code.
Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Update the m68knommu defconfig.
Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Commit 5ce2087ed0eb424e0889bdc9102727f65d2ecdde (Fix default compose
table initialization) left a trailing quote.CC drivers/s390/char/defkeymap.o
drivers/s390/char/defkeymap.c:155: error: missing terminating ' character
drivers/s390/char/defkeymap.c:156: error: syntax error before ';' token
make[3]: *** [drivers/s390/char/defkeymap.o] Error 1Fix that.
Signed-off-by: Tony Breeds
Signed-off-by: Linus Torvalds -
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
[CIFS] remove unused variable
[CIFS] consolidate duplicate code in posix/unix inode handling
[CIFS] fix build break when proc disabled
[CIFS] factoring out common code in get_inode_info functions
[CIFS] fix prepath conversion when server supports posix paths
[CIFS] Only convert / when server does not support posix paths
[CIFS] Fix mixed case name in structure dfs_info3_param
[CIFS] fixup prefixpaths which contain multiple path components
[CIFS] fix typo
[CIFS] patch to fix incorrect encoding of number of aces on set mode
[CIFS] Fix typo in quota operations
[CIFS] clean up some hard to read ifdefs
[CIFS] reduce checkpatch warnings
[CIFS] fix warning in cifs_spnego.c
04 Mar, 2008
11 commits
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This changes the "freezer" code used by suspend/hibernate in its treatment
of tasks in TASK_STOPPED (job control stop) and TASK_TRACED (ptrace) states.As I understand it, the intent of the "freezer" is to hold all tasks
from doing anything significant. For this purpose, TASK_STOPPED and
TASK_TRACED are "frozen enough". It's possible the tasks might resume
from ptrace calls (if the tracer were unfrozen) or from signals
(including ones that could come via timer interrupts, etc). But this
doesn't matter as long as they quickly block again while "freezing" is
in effect. Some minor adjustments to the signal.c code make sure that
try_to_freeze() very shortly follows all wakeups from both kinds of
stop. This lets the freezer code safely leave stopped tasks unmolested.Changing this fixes the longstanding bug of seeing after resuming from
suspend/hibernate your shell report "[1] Stopped" and the like for all
your jobs stopped by ^Z et al, as if you had freshly fg'd and ^Z'd them.
It also removes from the freezer the arcane special case treatment for
ptrace'd tasks, which relied on intimate knowledge of ptrace internals.Signed-off-by: Roland McGrath
Signed-off-by: Linus Torvalds -
Most classic Pentiums don't have hardware virtualization extension,
and building kvm with Voyager, Visual Workstation, or NUMAQ
generates spurious failures.Signed-off-by: Avi Kivity
Signed-off-by: Randy Dunlap -
KVM tries to run as much as possible with the guest msrs loaded instead of
host msrs, since switching msrs is very expensive. It also tries to minimize
the number of msrs switched according to the guest mode; for example,
MSR_LSTAR is needed only by long mode guests. This optimization is done by
setup_msrs().However, we must not change which msrs are switched while we are running with
guest msr state:- switch to guest msr state
- call setup_msrs(), removing some msrs from the list
- switch to host msr state, leaving a few guest msrs loadedAn easy way to trigger this is to kexec an x86_64 linux guest. Early during
setup, the guest will switch EFER to not include SCE. KVM will stop saving
MSR_LSTAR, and on the next msr switch it will leave the guest LSTAR loaded.
The next host syscall will end up in a random location in the kernel.Fix by reloading the host msrs before changing the msr list.
Signed-off-by: Avi Kivity
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For improved concurrency, the guest walk is performed concurrently with other
vcpus. This means that we need to revalidate the guest ptes once we have
write-protected the guest page tables, at which point they can no longer be
modified.The current code attempts to avoid this check if the shadow page table is not
new, on the assumption that if it has existed before, the guest could not have
modified the pte without the shadow lock. However the assumption is incorrect,
as the racing vcpu could have modified the pte, then instantiated the shadow
page, before our vcpu regains control:vcpu0 vcpu1
fault
walk ptemodify pte
fault in same pagetable
instantiate shadow pagelookup shadow page
conclude it is old
instantiate spte based on stale guest pteWe could do something clever with generation counters, but a test run by
Marcelo suggests this is unnecessary and we can just do the revalidation
unconditionally. The pte will be in the processor cache and the check can
be quite fast.Signed-off-by: Avi Kivity
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Some Linux versions allow the timer interrupt to be processed by more than
one cpu, leading to hangs due to tsc instability. Work around the issue
by only disaptching the interrupt to vcpu 0.Problem analyzed (and patch tested) by Sheng Yang.
Signed-off-by: Avi Kivity
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If the local apic initial count is zero, don't start a an hrtimer with infinite
frequency, locking up the host.Signed-off-by: Avi Kivity
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the cr3 variable is now inside the vcpu->arch structure.
Signed-off-by: Marcelo Tosatti
Signed-off-by: Avi Kivity -
alloc_apic_access_page() can sleep, while vmx_vcpu_setup is called
inside a non preemptable region. Move it after put_cpu().Signed-off-by: Marcelo Tosatti
Signed-off-by: Avi Kivity -
While installing Windows XP 64 bit wants to access the DEBUGCTL and the last
branch record (LBR) MSRs. Don't allowing this in KVM causes the installation to
crash. This patch allow the access to these MSRs and fixes the issue.Signed-off-by: Joerg Roedel
Signed-off-by: Markus Rechberger
Signed-off-by: Avi Kivity -
This patch replaces the mmap_sem lock for the memory slots with a new
kvm private lock, it is needed beacuse untill now there were cases where
kvm accesses user memory while holding the mmap semaphore.Signed-off-by: Izik Eidus
Signed-off-by: Avi Kivity -
This is important to eg dm, that tries to decide whether to stop using
barriers or not.Tested as working by Anders Henke
Signed-off-by: Jens Axboe
