Commit graph

109449 commits

Author SHA1 Message Date
Ralf Baechle
3885b71ba6 [MIPS] Wire up new syscalls.
signalfd4, eventfd2, epoll_create1, dup3, pipe2 and inotify_init1.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-08-26 09:10:20 +01:00
Mike Crowe
a64ae7a225 [MIPS] Convert printk statements during kernel setup to use severity levels
Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-08-26 09:10:19 +01:00
H. Peter Anvin
08970fc4e0 x86: msr: fix bogus return values from rdmsr_safe/wrmsr_safe
Impact: bogus error codes (+other?) on x86-64

The rdmsr_safe/wrmsr_safe routines have macros for the handling of the
edx:eax arguments.  Those macros take a variable number of assembly
arguments.  This is rather inherently incompatible with using
%digit-style escapes in the inline assembly; replace those with
%[name]-style escapes.

This fixes miscompilation on x86-64, which at the very least caused
bogus return values.  It is possible that this could also corrupt the
return value; I am not sure.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-25 22:39:15 -07:00
Paul Mackerras
9bdbb96332 powerpc: Update defconfigs for most non-embedded platforms
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-26 13:31:55 +10:00
Linus Torvalds
b8e6c91c74 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  bnx2x: Version update
  bnx2x: Multi Queue
  bnx2x: NAPI and interrupts enable/disable
  bnx2x: NIC load failure cleanup
  bnx2x: Initialization structure
  bnx2x: HW lock timeout
  bnx2x: Minimize lock time
  bnx2x: Fan failure mechanism on additional design
  bnx2x: Rx work check
  ipv6: sysctl fixes
  ipv4: sysctl fixes
  sctp: add verification checks to SCTP_AUTH_KEY option
2008-08-25 17:48:07 -07:00
Stephen Rothwell
e5778ec91e ALSA: fix for CA0106 on MSI K8N Diamond PLUS Motherboard
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-25 17:47:42 -07:00
H. Peter Anvin
9ea2b82ed6 x86: cpuid: correct return value on partial operations
Return the correct return value when the CPUID driver partially
completes a request (we should return the number of bytes actually
read or written, instead of the error code.)

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-25 17:46:12 -07:00
H. Peter Anvin
85f1cb6015 x86: msr: correct return value on partial operations
Return the correct return value when the MSR driver partially
completes a request (we should return the number of bytes actually
read or written, instead of the error code.)

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-25 17:46:12 -07:00
H. Peter Anvin
4b46ca701b x86: cpuid: propagate error from smp_call_function_single()
Propagate error (-ENXIO) from smp_call_function_single() in the CPUID
driver.  This can happen when a CPU is unplugged while the CPUID
driver is open.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-25 17:45:48 -07:00
H. Peter Anvin
c6f31932d0 x86: msr: propagate errors from smp_call_function_single()
Propagate error (-ENXIO) from smp_call_function_single().  These
errors can happen when a CPU is unplugged while the MSR driver is
open.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-25 17:45:48 -07:00
H. Peter Anvin
f73be6dedf smp: have smp_call_function_single() detect invalid CPUs
Have smp_call_function_single() return invalid CPU indicies and return
-ENXIO.  This function is already executed inside a
get_cpu()..put_cpu() which locks out CPU removal, so rather than
having the higher layers doing another layer of locking to guard
against unplugged CPUs do the test here.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-25 17:45:48 -07:00
Steve French
6ce5eecb9c [CIFS] check version in spnego upcall response
Currently, we don't check the version in the SPNEGO upcall response
even though one is provided. Jeff and Q have made the corresponding
change to the Samba client (cifs.upcall).

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-08-26 00:37:14 +00:00
Andrew Morton
d617a40227 powerpc: Export CMO_PageSize
This fixes an error building powerpc allmodconfig:

ERROR: "CMO_PageSize" [arch/powerpc/platforms/pseries/cmm.ko] undefined!

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-26 10:24:47 +10:00
Masakazu Mokuno
b47027795a powerpc/ps3: Fix ioremap of spu shadow regs
Fix the ioremap of the spu shadow regs on the PS3.

The current PS3 hypervisor requires the spu shadow regs to be
mapped with the PTE page protection bits set as read-only (PP=3).
This implementation uses the low level __ioremap() to bypass the
page protection settings inforced by ioremap_flags() to get the
needed PTE bits set for the shadow regs.

This fixes a runtime failure on the PS3 introduced by the powerpc
ioremap_prot rework of commit a1f242ff46
("powerpc ioremap_prot").

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-26 10:24:46 +10:00
Masakazu Mokuno
9cfeb74e93 powerpc/ps3: Rework htab code to remove ioremap
Rework the PS3 MMU hash table code to remove the need to ioremap the
hash table by using the HV calls lv1_insert_htab_entry() and
lv1_read_htab_entries().

This fixes a runtime failure on the PS3 introduced by the powerpc
ioremap_prot rework of commit a1f242ff46
("powerpc ioremap_prot").

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-26 10:24:46 +10:00
Geoff Levand
98fded0728 powerpc/ps3: Update ps3_defconfig
Update ps3_defconfig.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-26 10:24:46 +10:00
Carl Love
f4156d1cd1 powerpc/cell/oprofile: Avoid double vfree of profile buffer
If an error occurs on opcontrol start, the event and per cpu buffers
are released.  If later opcontrol shutdown is called then the free
function will be called again to free buffers that no longer
exist.  This results in a kernel oops.  The following changes
prevent the call to delete buffers that don't exist.

Signed-off-by: Carl Love <carll@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-26 10:24:46 +10:00
Eilon Greenstein
c2d4254577 bnx2x: Version update
Version update

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:30:39 -07:00
Yitchak Gertner
231fd58a4d bnx2x: Multi Queue
The multi queue support is still disabled by default for the bnx2x
(needs some more testing and validation), but there are 2 obvious bug in
it which are fixed in this patch

Signed-off-by: Yitchak Gertner <gertner@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:27:06 -07:00
Yitchak Gertner
65abd74dd5 bnx2x: NAPI and interrupts enable/disable
Fixing the order of enabling and disabling NAPI and the interrupts

Signed-off-by: Yitchak Gertner <gertner@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:26:24 -07:00
Yitchak Gertner
d101463499 bnx2x: NIC load failure cleanup
Load failures were not handled correctly

Signed-off-by: Yitchak Gertner <gertner@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:25:45 -07:00
Yitchak Gertner
3cdf1db7db bnx2x: Initialization structure
The TPA initialization is part of the FW internal memory initialization
and so it is moved to the appropriate function

Signed-off-by: Yitchak Gertner <gertner@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:24:21 -07:00
Eilon Greenstein
46230476b7 bnx2x: HW lock timeout
Increasing the lock timeout to 5 seconds instead of 1 second to minimize
the chance of failures due to timeout

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:23:30 -07:00
Eilon Greenstein
76b190c592 bnx2x: Minimize lock time
After iSCSI boot, the HW lock should only protect the flag so only the
first function will reset the chip and not then entire chip reset
process

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:22:46 -07:00
Eilon Greenstein
7add905f93 bnx2x: Fan failure mechanism on additional design
The A1021G board is also using the fan failure mechanism in the same way
the A1022G board does

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:20:48 -07:00
Eilon Greenstein
2772f90373 bnx2x: Rx work check
The has Rx work check was wrong: when the FW was at the end of the page,
the driver was already at the beginning of the next page. Since the
check only validated that both driver and FW are pointing to the same
place, it concluded that there is still work to be done. This caused
some serious issues including long latency results on ping-pong test and
lockups while unloading the driver in that condition.

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:19:17 -07:00
Al Viro
ce3113ec57 ipv6: sysctl fixes
Braino: net.ipv6 in ipv6 skeleton has no business in rotable
class

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:18:15 -07:00
Al Viro
2f4520d35d ipv4: sysctl fixes
net.ipv4.neigh should be a part of skeleton to avoid ordering problems

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:17:44 -07:00
Vlad Yasevich
30c2235cbc sctp: add verification checks to SCTP_AUTH_KEY option
The structure used for SCTP_AUTH_KEY option contains a
length that needs to be verfied to prevent buffer overflow
conditions.  Spoted by Eugene Teo <eteo@redhat.com>.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 15:16:19 -07:00
Linus Torvalds
d25e26b61d [x86] Clean up MAXSMP Kconfig, and limit NR_CPUS to 512
This fixes a regression that was indirectly caused by commit
1184dc2ffe ("x86: modify Kconfig to allow
up to 4096 cpus").

Allowing 4k CPU's is not practical at this time, because we still have a
number of places that have several 'cpumask_t's on the stack, and a
4k-bit cpumask is 512 bytes of stack-space for each such variable.  This
literally caused functions like 'smp_call_function_mask' to have a 2.5kB
stack frame, and several functions to have 2kB stackframes.

With an 8kB stack total, smashing the stack was simply much too likely.
At least bugzilla entry

	http://bugzilla.kernel.org/show_bug.cgi?id=11342

was due to this.

The earlier commit to not inline load_module() into sys_init_module()
fixed the particular symptoms of this that Alan Brunelle saw in that
bugzilla entry, but the huge stack waste by cpumask_t's was the more
direct cause.

Some day we'll have allocation helpers that allocate large CPU masks
dynamically, but in the meantime we simply cannot allow cpumasks this
large.

Cc: Alan D. Brunelle <Alan.Brunelle@hp.com>
Cc: Mike Travis <travis@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-25 14:15:38 -07:00
Linus Torvalds
426e1eafdb Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rtc: fix deadlock
2008-08-25 11:26:56 -07:00
Linus Torvalds
ec73adba51 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: add X86_FEATURE_XMM4_2 definitions
  x86: fix cpufreq + sched_clock() regression
  x86: fix HPET regression in 2.6.26 versus 2.6.25, check hpet against BAR, v3
  x86: do not enable TSC notifier if we don't need it
  x86 MCE: Fix CPU hotplug problem with multiple multicore AMD CPUs
  x86: fix: make PCI ECS for AMD CPUs hotplug capable
  x86: fix: do not run code in amd_bus.c on non-AMD CPUs
2008-08-25 11:26:33 -07:00
Linus Torvalds
cc556c5c92 Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched_clock: fix cpu_clock()
2008-08-25 11:26:02 -07:00
Linus Torvalds
a56cb4ecbd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: fix reference leak in pci_get_dev_by_id()
  PCI: shpchp: Rename duplicate slot name N as N-1, N-2, N-M...
  PCI: pciehp: Rename duplicate slot name N as N-1, N-2, N-M...
2008-08-25 11:25:10 -07:00
Linus Torvalds
b9b50363e6 Merge branch 'for-linus' of 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:
  ALSA: ASoC: Fix double free and memory leak in many codec drivers
  ALSA: CA0106 on MSI K8N Diamond PLUS Motherboard
2008-08-25 11:24:51 -07:00
James Bottomley
8a549f8b58 [IA64] Fix __{in,out}s{w,l} to handle unaligned data
Some ia64 systems produce several repeats of kernel messages like this:

 kernel unaligned access to 0xe000000644220466, ip=0xa000000100516fa1

This was tracked to ide code using the __cmd[] field in "struct request"
via the __outsw() function.  __cmd[] is a char array, so is not guaranteed
to be properly aligned when accessed as words.

Tested-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-08-25 11:23:13 -07:00
Linus Torvalds
087713f454 Merge branch 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: fix userspace ABI breakage
  KVM: MMU: Fix torn shadow pte
  KVM: Use .fixup instead of .text.fixup on __kvm_handle_fault_on_reboot
2008-08-25 11:19:53 -07:00
Linus Torvalds
7cf0bed9c3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  lguest: update commentry
  stop_machine: Remove deprecated stop_machine_run
  stop_machine: wean Xen off stop_machine_run
  virtio_balloon: fix towards_target when deflating balloon
2008-08-25 11:18:49 -07:00
Linus Torvalds
ffb4ba76a2 [module] Don't let gcc inline load_module()
'load_module()' is a complex function that contains all the ELF section
logic, and inlining it is utterly insane.  But gcc will do it, simply
because there is only one call-site.  As a result, all the stack space
that is allocated for all the work to load the module will still be
active when we actually call the module init sequence, and the deep call
chain makes stack overflows happen.

And stack overflows are really hard to debug, because they not only
corrupt random pages below the stack, but also corrupt the thread_info
structure that is allocated under the stack.

In this case, Alan Brunelle reported some crazy oopses at bootup, after
loading the processor module that ends up doing complex ACPI stuff and
has quite a deep callchain.  This should fix it, and is the sane thing
to do regardless.

Cc: Alan D. Brunelle <Alan.Brunelle@hp.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-25 11:10:26 -07:00
Robin Holt
42aca483dd [IA64] Fix ia64 build failure when CONFIG_SFC=m
CONFIG_SFC=m uses topology_core_siblings() which, for ia64, expects
cpu_core_map to be exported.  It is not.  This patch exports the needed
symbol.

Maintainers note: This really looks like the wrong thing to do ... it
would be much better for the kernel to export an API to provide
drivers like this with data they need (which in the case of this
driver seems to be an estimate of the effective parallelism available
on the platform).  But x86 has exported this forever ... so go with
the flow until such an API is defined.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-08-25 11:10:11 -07:00
Heiko Carstens
dbe13d9981 [S390] dcss: fix build bug.
Fix this compile bug:

  CC      drivers/s390/block/dcssblk.o
drivers/s390/block/dcssblk.c: In function 'dcssblk_add_store':
drivers/s390/block/dcssblk.c:387: error: implicit declaration of function 'dcssblk_get_segment_by_name'
drivers/s390/block/dcssblk.c:389: error: label 'release_gd' used but not defined
make[1]: *** [drivers/s390/block/dcssblk.o] Error 1
make: *** [drivers/s390/block/] Error 2

Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-08-25 18:15:01 +02:00
Heiko Carstens
5453c1a575 [S390] Fix linker script.
6360b1fbb4 ("move BUG_TABLE into RODATA")
causes this build bug (binutils 2.18.50.0.8.20080709, gcc 4.3.1):

  AS      .tmp_kallsyms1.o
  LD      .tmp_vmlinux2
  KSYM    .tmp_kallsyms2.S
s390x-4.3.1-nm: .tmp_vmlinux2: File truncated
No valid symbol.
make: *** [.tmp_kallsyms2.S] Error 1

So fix this.

Cc: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-08-25 18:15:01 +02:00
Peter Zijlstra
354879bb97 sched_clock: fix cpu_clock()
This patch fixes 3 issues:

a) it removes the dependency on jiffies, because jiffies are incremented
   by a single CPU, and the tick is not synchronized between CPUs. Therefore
   relying on it to calculate a window to clip whacky TSC values doesn't work
   as it can drift around.

   So instead use [GTOD, GTOD+TICK_NSEC) as the window.

b) __update_sched_clock() did (roughly speaking):

   delta = sched_clock() - scd->tick_raw;
   clock += delta;

   Which gives exponential growth, instead of linear.

c) allows the sched_clock_cpu() value to warp the u64 without breaking.

the results are more reliable sched_clock() deltas:

           before       after   sched_clock

cpu_clock: 15750        51312   51488
cpu_clock: 59719        51052   50947
cpu_clock: 15879        51249   51061
cpu_clock: 1            50933   51198
cpu_clock: 1            50931   51039
cpu_clock: 1            51093   50981
cpu_clock: 1            51043   51040
cpu_clock: 1            50959   50938
cpu_clock: 1            50981   51011
cpu_clock: 1            51364   51212
cpu_clock: 1            51219   51273
cpu_clock: 1            51389   51048
cpu_clock: 1            51285   51611
cpu_clock: 1            50964   51137
cpu_clock: 1            50973   50968
cpu_clock: 1            50967   50972
cpu_clock: 1            58910   58485
cpu_clock: 1            51082   51025
cpu_clock: 1            50957   50958
cpu_clock: 1            50958   50957
cpu_clock: 1006128      51128   50971
cpu_clock: 1            51107   51155
cpu_clock: 1            51371   51081
cpu_clock: 1            51104   51365
cpu_clock: 1            51363   51309
cpu_clock: 1            51107   51160
cpu_clock: 1            51139   51100
cpu_clock: 1            51216   51136
cpu_clock: 1            51207   51215
cpu_clock: 1            51087   51263
cpu_clock: 1            51249   51177
cpu_clock: 1            51519   51412
cpu_clock: 1            51416   51255
cpu_clock: 1            51591   51594
cpu_clock: 1            50966   51374
cpu_clock: 1            50966   50966
cpu_clock: 1            51291   50948
cpu_clock: 1            50973   50867
cpu_clock: 1            50970   50970
cpu_clock: 998306       50970   50971
cpu_clock: 1            50971   50970
cpu_clock: 1            50970   50970
cpu_clock: 1            50971   50971
cpu_clock: 1            50970   50970
cpu_clock: 1            51351   50970
cpu_clock: 1            50970   51352
cpu_clock: 1            50971   50970
cpu_clock: 1            50970   50970
cpu_clock: 1            51321   50971
cpu_clock: 1            50974   51324

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-25 17:39:57 +02:00
Austin Zhang
2a61812af2 x86: add X86_FEATURE_XMM4_2 definitions
Added Intel processor SSE4.2 feature flag.

No in-tree user at the moment, but makes the tree-merging life easier
for the crypto tree.

Signed-off-by: Austin Zhang <austin.zhang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-25 17:28:16 +02:00
Joel Becker
d6817cdbd1 ocfs2: Increment the reference count of an already-active stack.
The ocfs2_stack_driver_request() function failed to increment the
refcount of an already-active stack.  It only did the increment on the
first reference.  Whoops.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Tested-by: Marcos Matsunaga <marcos.matsunaga@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-08-25 07:29:47 -07:00
Adrian Bunk
1327138e29 KVM: fix userspace ABI breakage
The following part of commit 9ef621d3be
(KVM: Support mixed endian machines) changed on the size of a struct
that is exported to userspace:

include/linux/kvm.h:

@@ -318,14 +318,14 @@ struct kvm_trace_rec {
 	__u32 vcpu_id;
 	union {
 		struct {
-			__u32 cycle_lo, cycle_hi;
+			__u64 cycle_u64;
 			__u32 extra_u32[KVM_TRC_EXTRA_MAX];
 		} cycle;
 		struct {
 			__u32 extra_u32[KVM_TRC_EXTRA_MAX];
 		} nocycle;
 	} u;
-};
+} __attribute__((packed));

Packing a struct was the correct idea, but it packed the wrong struct.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-08-25 17:28:25 +03:00
Avi Kivity
cd5998ebfb KVM: MMU: Fix torn shadow pte
The shadow code assigns a pte directly in one place, which is nonatomic on
i386 can can cause random memory references.  Fix by using an atomic setter.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-08-25 17:24:27 +03:00
Eduardo Habkost
18b13e5457 KVM: Use .fixup instead of .text.fixup on __kvm_handle_fault_on_reboot
vmlinux.lds expects the fixup code to be on a section named .fixup. The
.text.fixup section is not mentioned on vmlinux.lds, and is included on
the resulting vmlinux (just after .text) only because of ld heuristics on
placing orphan sections.

However, placing .text.fixup outside .text breaks the definition of
_etext, making it exclude the .text.fixup contents. That makes .text.fixup
be ignored by the kernel initialization code that needs to know about
section locations, such as the code setting page protection bits.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-08-25 17:22:57 +03:00
Rusty Russell
1dc3e3bcbf lguest: update commentry
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-08-26 00:19:28 +10:00
Rusty Russell
bf20029677 stop_machine: Remove deprecated stop_machine_run
Everyone should be using stop_machine() now.  The staged API
transition helped life in linux-next.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-08-26 00:19:27 +10:00