Commit graph

108982 commits

Author SHA1 Message Date
Andrew Vasquez
bed475c4cd [SCSI] qla2xxx: Don't leak SG-DMA mappings while aborting commands.
Original code inadvertently cleared an SRB's 'flags' while
aborting; causing a follow-on scsi_dma_unmap() to be potentially
missed.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 10:22:17 -05:00
Andrew Vasquez
a7a28504bf [SCSI] qla2xxx: Correct vport-state management issues during ISP-ABORT.
* Use correct 'ha' to mark a device lost from ISR.
  I/Os will always be returned on the physical-HA.
  qla2x00_mark_device_lost() should be called with the HA bound
  to the fcport.
* Mark *all* devices lost during ISP-ABORT (bighammer).

These fixes correct issues discovered locally where during
link-perturbation and heavy vport-I/O fcport/rport states would
stray and an rport's scsi-target lost (timed-out).

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 10:22:01 -05:00
Andrew Vasquez
6390d1f33f [SCSI] qla2xxx: Correct synchronization of software/firmware fcport states.
Greg Wettstein (greg@enjellic.com) noted:

	http://article.gmane.org/gmane.linux.scsi/43409

on a reboot of a previously recognized SCST target, the initiator
driver would be unable to re-recognize the device as a target.
It turns out that prior to the SCST software reloading and
returning it's "target-capable" abilities in the PRLI payload,
the HBA would be re-initialized as an initiator-only type port.
Since initiators typically classify themselves as an FCP-2
capable device, both software and firmware do not perform an
explicit logout during port-loss.  Unfortunately, as can be seen
by the failure case, when the port (now target-capable) returns,
firmware performs an ADISC without a follow-on PRLI, leaving
stale 'initiator-only' data in the firmware's port database.

Correct the discrepancy by performing the explicit logout during
the transport's request to terminate-rport-io, thus synchronizing
port states and ensuring a follow-on PRLI is performed.

Reported-by: Greg Wettstein <greg@enjellic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 10:21:09 -05:00
Chandra Seetharaman
fe42625cdf [SCSI] scsi_dh: Initialize lun_state in check_ownership()
lun_state need to be initialized inside check_ownership().

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 10:13:34 -05:00
Chandra Seetharaman
8479fca119 [SCSI] scsi_dh: Do not use scsilun in rdac hardware handler
RDAC storage controller doesn't seem to use the scsilun format. It uses
only the last byte for LUN.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 10:13:33 -05:00
Yang, Bo
24541f99ba [SCSI] megaraid_sas: version and Documentation Update
Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 10:13:33 -05:00
Yang, Bo
6610a6b354 [SCSI] megaraid_sas: add new controllers (0x78 0x79)
Add the new controllers (0x78 0x79) support to the driver.  Those
controllers are LSI's next generation (gen2) SAS controllers.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: parenthesise a macro]
Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 10:13:32 -05:00
Yang, Bo
530e6fc1e0 [SCSI] megaraid_sas: add the shutdown DCMD cmd to driver shutdown routine
Add the shutdown DCMD cmd to driver shutdown routine to make megaraid sas
FW shutdown proper.

Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 10:13:32 -05:00
Yang, Bo
06f579dee5 [SCSI] megaraid_sas: add readl to force PCI posting flush
MegaRAID SAS Driver get unexpected Interrupt.  Add the dummy readl to
force PCI flush will fix this issue.

Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 10:12:19 -05:00
Adrian Bunk
8b5942c391 [ARM] Fix a pile of broken watchdog drivers
These patches from Adrian fix:
- ixp4xx_wdt: 20d35f3e50
  CC      drivers/watchdog/ixp4xx_wdt.o
ixp4xx_wdt.c:32: error: expected '=', ',', ';', 'asm' or '__attribute__'
ixp4xx_wdt.c: In function 'wdt_enable':
ixp4xx_wdt.c:41: error: 'wdt_lock' undeclared (first use in this
ixp4xx_wdt.c:41: error: (Each undeclared identifier is reported only
ixp4xx_wdt.c:41: error: for each function it appears in.)
ixp4xx_wdt.c: In function 'wdt_disable':
ixp4xx_wdt.c:52: error: 'wdt_lock' undeclared (first use in this
ixp4xx_wdt.c: In function 'ixp4xx_wdt_init':
ixp4xx_wdt.c:186: error: 'wdt_lock' undeclared (first use in this
make[3]: *** [drivers/watchdog/ixp4xx_wdt.o] Error 1

- at91rm9200_wdt: 2760600da2
  CC      drivers/watchdog/at91rm9200_wdt.o
at91rm9200_wdt.c:188: error: 'at91_wdt_ioctl' undeclared here (not in a
make[3]: *** [drivers/watchdog/at91rm9200_wdt.o] Error 1

- wdt285: d0e58eed05
  CC [M]  drivers/watchdog/wdt285.o
wdt285.c: In function 'footbridge_watchdog_init':
wdt285.c:211: error: 'KERN_WARN' undeclared (first use in this function)
wdt285.c:211: error: (Each undeclared identifier is reported only once
wdt285.c:211: error: for each function it appears in.)
wdt285.c:212: error: expected ')' before string constant
make[3]: *** [drivers/watchdog/wdt285.o] Error 1

And this patch from rmk:
- s3c2410_wdt: 41dc8b72e3
  CC      drivers/watchdog/s3c2410_wdt.o
s3c2410_wdt.c: In function `s3c2410wdt_start':
s3c2410_wdt.c:161: warning: `return' with a value, in function returning void

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16 09:30:44 +01:00
Russell King
da4d77cda0 [ARM] update mach-types
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16 09:30:05 +01:00
Nicolas Pitre
16f719de62 [ARM] 5196/1: fix inline asm constraints for preload
With gcc 4.3 and later, a pointer that has already been dereferenced is
assumed not to be null since it should have caused a segmentation fault
otherwise, hence any subsequent test against NULL is optimized away.

Current inline asm constraint used in the implementation of prefetch()
makes gcc believe that the pointer is dereferenced even though the PLD
instruction does not load any data and does not cause a segmentation
fault on null pointers, which causes all sorts of interesting results
when reaching the end of a linked lists for example.

Let's use a better constraint to properly represent the actual usage of
the pointer value.

Problem reported by Chris Steel.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16 09:30:05 +01:00
David S. Miller
ebb1951d36 lmb: Fix reserved region handling in lmb_enforce_memory_limit().
The idea of the implementation of this fix is from Michael Ellerman.

This function has two loops, but they each interpret the memory_limit
value differently.  The first loop interprets it as a "size limit"
whereas the second loop interprets it as an "address limit".

Before the second loop runs, reset memory_limit to lmb_end_of_DRAM()
so that it all works out.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Michael Ellerman <michael@ellerman.id.au>
2008-08-15 19:57:57 -07:00
David S. Miller
08013fa353 bnx2: Fix build with VLAN_8021Q disabled.
Reported by Randy Dunlap.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:52:31 -07:00
Rusty Russell
f42157cb56 tun: fallback if skb_alloc() fails on big packets
skb_alloc produces linear packets (using kmalloc()).  That can fail,
so should we fall back to making paged skbs.

My original version of this patch always allocate paged skbs for big
packets.  But that made performance drop from 8.4 seconds to 8.8
seconds on 1G lguest->Host TCP xmit.  So now we only do that as a
fallback.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Max Krasnyansky <maxk@qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:52:31 -07:00
Rusty Russell
db543c1f97 net: skb_copy_datagram_from_iovec()
There's an skb_copy_datagram_iovec() to copy out of a paged skb, but
nothing the other way around (because we don't do that).

We want to allocate big skbs in tun.c, so let's add the function.
It's a carbon copy of skb_copy_datagram_iovec() with enough changes to
be annoying.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:52:30 -07:00
Mark McLoughlin
e3b9955697 tun: TUNGETIFF interface to query name and flags
Add a TUNGETIFF interface so that userspace can query a
tun/tap descriptor for its name and flags.

This is needed because it is common for one app to create
a tap interface, exec another app and pass it the file
descriptor for the interface. Without TUNGETIFF the spawned
app has no way of detecting wheter the interface has e.g.
IFF_VNET_HDR set.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Acked-by: Max Krasnyansky <maxk@qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:52:19 -07:00
Herbert Xu
04a0551c87 loopback: Drop obsolete ip_summed setting
Now that the network stack can handle inbound packets with partial
checksums, we should no longer clobber the ip_summed field in the
loopback driver.  This is because CHECKSUM_UNNECESSARY implies that
the checksum field is actually valid which is not true for loopback
packets since it's only partial (and thus complemented).

This allows packets from lo to then be SNATed to an external source
while still preserving the checksum's validity.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:52:01 -07:00
Herbert Xu
6f85a124d8 net: Preserve netfilter attributes in skb_gso_segment using __copy_skb_header
skb_gso_segment didn't preserve some attributes in the original skb
such as the netfilter fields.  This was harmless until they were used
which is the case for packets going through lo.

This patch makes it call __copy_skb_header which also picks up some
other missing attributes.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:51:36 -07:00
David S. Miller
7447ef63cf loopback: Remove rest of LOOPBACK_TSO code.
It hasn't been enabled for a long time and the generic GSO
engine is better documentation of what is expected of a
device implementing TSO.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:51:26 -07:00
Herbert Xu
f22f8567cb loopback: Enable TSO
This patch enables TSO since the loopback device is naturally
capable of handling packets of any size.  This also means that
we won't enable GSO on lo which is good until GSO is fixed to
preserve netfilter state as netfilter treats loopback packets
in a special way.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:51:25 -07:00
Stephen Hemminger
e4119a4318 bridge: show offload settings
Add more ethtool generic operations to dump the bridge offload
settings.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:51:07 -07:00
Linus Torvalds
71ef2a46fc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  security: Fix setting of PF_SUPERPRIV by __capable()
2008-08-15 15:32:13 -07:00
Linus Torvalds
d121db94eb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (33 commits)
  Blackfin arch: hook up some missing new system calls
  Blackfin arch: fix missing digit in SCLK range checking
  Blackfin arch: do not muck with the UART during boot -- let the serial driver worry about it
  Blackfin arch: clear EMAC_SYSTAT during IRQ init rather than early head.S as we dont need it setup that early
  Blackfin arch: use %pF when printing out the double fault address so we get symbol names
  Blackfin arch: add support for the BlackStamp board
  Blackfin arch: Allow ins functions to have a low latency version
  Blackfin arch: Print out doublefault addresses, so debug can occur
  Blackfin arch: shuffle related prototypes together -- no functional changes
  Blackfin arch: move fixed code defines into fixed_code.h as very few things actually need to know these details
  Blackfin arch: mark some functions as __init as they are only called from __init functions
  Blackfin arch: delete dead prototypes
  Blackfin arch: cleanup cache lock code
  Blackfin arch: workaround SIC_IWR1 reset bug, by keeping MDMA0/1 always enabled in SIC_IWR1.
  Blackfin arch: Fix bug - when expanding the trace buffer, it does not print out the decoded instruction.
  Blackfin arch: Fix Bug - System with EMAC driver enabled - Core not idling
  Blackfin arch: delete unused cache functions
  Blackfin arch: convert L2 defines to be the same as the L1 defines
  Blackfin arch: unify the duplicated portions of __start and split mach-specific pieces into _mach_early_start where they will be easier to trim over time
  Blackfin arch: add asm/thread_info.h for THREAD_SIZE define
  ...
2008-08-15 15:31:23 -07:00
Matt Carlson
23197916c4 tg3: Update version to 3.94
This patch updates the version number to 3.94.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 14:11:19 -07:00
Stefan Buehler
816f8b8662 tg3: fix 64 bit counter for ethtool stats
Ethtool stats are 64-bits in length.  net_device_stats members are
unsigned long types.  When gathering information for
a get_ethtool_stats call, the driver will call a driver-private,
inlined get_stat64() function, which returns an unsigned long value.
This call will inadvertently mask off the upper 32-bits of a stat on
32-bit machines.

This patch defines a new get_estat() inline function and modifies the
ESTAT_ADD() macro to use it.

Signed-off-by: Stefan Buehler <stbuehler@web.de>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 14:10:54 -07:00
Matt Carlson
4ba526ced9 tg3: Fix firmware event timeouts
The git commit 7c5026aa9b ("tg3: Add
link state reporting to UMP firmware") introduced code that waits for
previous firmware events to be serviced before attempting to submit a
new event.  Unfortunately that patch contained a bug that cause the
driver to wait 2.5 seconds, rather than 2.5 milliseconds as intended.
This patch fixes that bug.

This bug revealed that not all firmware versions service driver events
though.  Since we do not know which versions of the firmware do and don't
service these events, the driver needs some way to minimize the effects
of the delay.  This patch solves the problem by recording a jiffies
timestamp when it submits an event to the hardware.  If the jiffies
counter shows that 2.5 milliseconds have already passed, a wait is not
needed and the driver can proceed to submit a new event.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 14:10:04 -07:00
Matt Carlson
bc7959b2cb tg3: Turn off ASF "driver alive" heartbeats for APE
The ENABLE_ASF flag is set when DASH is enabled on the NIC, but DASH
does not run on the RX CPU.  Instead it runs on the APE.
Consequently, the driver does not need to send "driver alive" updates
to the RX CPU when the APE is present.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 14:08:55 -07:00
Matt Carlson
3bda125896 tg3: Preserve register settings for DASH
Broadcom's DASH (Desktop and mobile Architecture for System Hardware)
implementation requires that the driver preserve particular register
settings.  If the driver does not preserve them, communication with
the DASH firmware will be lost.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 14:08:22 -07:00
Matt Carlson
731fd79c13 tg3: Refine APE status check
Recently, more status bits have been added to the APE status register.
This patch refines the status register check so that the driver can
send more events than it would have otherwise.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 14:07:51 -07:00
Matt Carlson
77b483f132 tg3: Add APE register access locking
If the driver resets the chip while the APE is performing a register
access, that register access will never complete and the APE will hang
indefinitely.  To prevent this race condition, the driver must acquire
an APE mutex before resetting the chip.  The APE will not attempt a
register access until it acquires this lock.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 14:07:24 -07:00
Herbert Xu
c6153b5b77 ipv4: Disable route secret interval on zero interval
Let me first state that disabling the route cache hash rebuild
should not be done without extensive analysis on the risk profile
and careful deliberation.

However, there are times when this can be done safely or for
testing.  For example, when you have mechanisms for ensuring
that offending parties do not exist in your network.

This patch lets the user disable the rebuild if the interval is
set to zero.  This also incidentally fixes a divide-by-zero error
with name-spaces.

In addition, this patch makes the effect of an interval change
immediate rather than it taking effect at the next rebuild as
is currently the case.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 13:44:31 -07:00
Linus Torvalds
40a3426640 Merge branch 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6
* 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6:
  cpuidle: Make ladder governor honor latency requirements fully
  cpuidle: Menu governor fix wrong usage of measured_us
  cpuidle: Do not use poll_idle unless user asks for it
  x86: Fix ioremap off by one BUG
2008-08-15 12:47:16 -07:00
Andi Kleen
22d9aac235 Merge branch 'cpuidle' into release-2.6.27 2008-08-15 21:26:12 +02:00
venkatesh.pallipadi@intel.com
06d9e908b2 cpuidle: Make ladder governor honor latency requirements fully
ladder governor only honored latency requirement when promoting C-states.
Instead. it should check for latency requirement on each idle call,
and demote to appropriate C-state when there is a latency requirement change.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-08-15 21:25:35 +02:00
venkatesh.pallipadi@intel.com
320eee7763 cpuidle: Menu governor fix wrong usage of measured_us
There is a bug in menu governor where we have
		if (data->elapsed_us < data->elapsed_us + measured_us)

with measured_us already having elapsed_us added in tickless case here
	unsigned int measured_us =
		cpuidle_get_last_residency(dev) + data->elapsed_us;

Also, it should be last_residency, not measured_us, that need to be used to
do comparing and distinguish between expected & non-expected events.

Refactor menu_reflect() to fix these two problems.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Wei Gang <gang.wei@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-08-15 21:25:25 +02:00
venkatesh.pallipadi@intel.com
a2bd920233 cpuidle: Do not use poll_idle unless user asks for it
poll_idle was added to CPUIDLE, just as a low latency idle handler, to be
used in cases when user desires CPUs not to enter any idle state at all. It
was supposed to be a run time idle=poll option to the user. But, it was indeed
getting used during normal menu and ladder governor default case, with no
special user setting (Reported by Linus Torvalds).

Change below ensures that poll_idle will not be used unless user explicitly
asks pm_qos infrastructure for zero latency requirement.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-08-15 21:25:25 +02:00
Linus Torvalds
4ad193b43f 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: wm8990: Implement speaker volume PGA
  ALSA: wm8990: Fix routing of left DAC to speaker mixer
  ALSA: virtuoso: add Xonar D1 support
2008-08-15 11:52:40 -07:00
Jean Delvare
cebd7709d3 hwmon-vid: Fix AMD K8 VID decoding
Not all AMD K8 have 6 VID pins, contrary to what was assumed in
commit 116d0486bd. This commit broke
support of older CPU models which have only 5 VID pins:
http://bugzilla.kernel.org/show_bug.cgi?id=11329

We need two entries in the hwmon-vid table, one for 5-bit VID models
(K8 revision <= E) and one for 6-bit VID models (K8 revision >= F).
This fixes bug #11329.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Frank Myhr <fmyhr@fhmtech.com>
Tested-by: Jean-Luc Coulon <jean.luc.coulon@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 11:50:15 -07:00
Ingo Molnar
cd98a04a59 x86: add MAP_STACK mmap flag
as per this discussion:

   http://lkml.org/lkml/2008/8/12/423

Pardo reported that 64-bit threaded apps, if their stacks exceed the
combined size of ~4GB, slow down drastically in pthread_create() - because
glibc uses MAP_32BIT to allocate the stacks. The use of MAP_32BIT is
a legacy hack - to speed up context switching on certain early model
64-bit P4 CPUs.

So introduce a new flag to be used by glibc instead, to not constrain
64-bit apps like this.

glibc can switch to this new flag straight away - it will be ignored
by the kernel. If those old CPUs ever matter to anyone, support for
it can be implemented.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ulrich Drepper <drepper@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 11:45:19 -07:00
Linus Torvalds
45edb89ffd Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] mount of IPC$ breaks with iget patch
  [CIFS] remove trailing whitespace
  [CIFS] if get root inode fails during mount, cleanup tree connection
2008-08-15 11:02:35 -07:00
Andi Kleen
a600683486 Merge branch 'ioremap' into release-2.6.27 2008-08-15 19:38:47 +02:00
Alan Cox
8c9a9dd0fa tty: remove resize window special case
This moves it to being a tty operation. That removes special cases and now
also means that resize can be picked up by um and other non vt consoles
which may have a resize operation.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 10:34:07 -07:00
Linus Torvalds
21d3bdb160 Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubifs-2.6
* 'linux-next' of git://git.infradead.org/~dedekind/ubifs-2.6: (29 commits)
  UBIFS: xattr bugfixes
  UBIFS: remove unneeded check
  UBIFS: few commentary fixes
  UBIFS: fix budgeting request alignment in xattr code
  UBIFS: improve arguments checking in debugging messages
  UBIFS: always set i_generation to 0
  UBIFS: correct spelling of "thrice".
  UBIFS: support splice_write
  UBIFS: minor tweaks in commit
  UBIFS: reserve more space for index
  UBIFS: print pid in dump function
  UBIFS: align inode data to eight
  UBIFS: improve budgeting checks
  UBIFS: correct orphan deletion order
  UBIFS: fix typos in comments
  UBIFS: do not union creat_sqnum and del_cmtno
  UBIFS: optimize deletions
  UBIFS: increment commit number earlier
  UBIFS: remove another unneeded function parameter
  UBIFS: remove unneeded function parameter
  ...
2008-08-15 10:33:07 -07:00
Stephen Hemminger
df60a84418 lockdep: fix build if CONFIG_PROVE_LOCKING not defined
If CONFIG_PROVE_LOCKING not defined, then no dependency information
is available.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-15 19:22:04 +02:00
Ingo Molnar
2fdc86901d x86: add MAP_STACK mmap flag
as per this discussion:

   http://lkml.org/lkml/2008/8/12/423

Pardo reported that 64-bit threaded apps, if their stacks exceed the
combined size of ~4GB, slow down drastically in pthread_create() - because
glibc uses MAP_32BIT to allocate the stacks. The use of MAP_32BIT is
a legacy hack - to speed up context switching on certain early model
64-bit P4 CPUs.

So introduce a new flag to be used by glibc instead, to not constrain
64-bit apps like this.

glibc can switch to this new flag straight away - it will be ignored
by the kernel. If those old CPUs ever matter to anyone, support for
it can be implemented.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ulrich Drepper <drepper@gmail.com>
2008-08-15 19:17:33 +02:00
Marcin Slusarz
8d6ea9674c x86: fix section mismatch warning - spp_getpage()
WARNING: vmlinux.o(.text+0x17a3e): Section mismatch in reference from the function set_pte_vaddr_pud() to the function .init.text:spp_getpage()
The function set_pte_vaddr_pud() references
the function __init spp_getpage().
This is often because set_pte_vaddr_pud lacks a __init
annotation or the annotation of spp_getpage is wrong.

spp_getpage is called from __init (__init_extra_mapping) and
non __init (set_pte_vaddr_pud) functions, so it can't be __init.
Unfortunately it calls alloc_bootmem_pages which is __init,
but does it only when bootmem allocator is available (after_bootmem == 0).

So annotate it accordingly.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
2008-08-15 19:16:06 +02:00
Alex Nixon
fc0091b3c8 x86: change init_gdt to update the gdt via write_gdt, rather than a direct write.
By writing directly, a memory access violation can occur whilst
hotplugging a CPU if the entry was previously marked read-only.

Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
Cc: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-15 19:16:05 +02:00
Linus Torvalds
3141eb6c50 Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
  md: cancel check/repair requests when recovery is needed
  Allow raid10 resync to happening in larger chunks.
  Allow faulty devices to be removed from a readonly array.
  Don't let a blocked_rdev interfere with read request in raid5/6
  Fail safely when trying to grow an array with a write-intent bitmap.
  Restore force switch of md array to readonly at reboot time.
  Make writes to md/safe_mode_delay immediately effective.
2008-08-15 09:30:24 -07:00
Linus Torvalds
7db9cbb374 Merge branch 'for-linus' of 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:
  Input: xilinx_ps2 - fix warning
  Input: bcm5974 - implement autosuspend support
  Input: bcm5974 - add driver for Macbook Air and Pro Penryn touchpads
  Input: paper over a bug in Synaptics X driver
  Input: evdev - split EVIOCGBIT handlig into a separate function
  Input: i8042 - Add Dritek quirk for Acer TravelMate 4280
  Input: xpad - add Pelican Eclipse D-Pad to the list of devices
  Input: gpio-keys - make gpio_keys_device_driver static
  Input: gpio-keys - fix possible NULL pointer dereference
  Input: wm97xx - enable sub-drivers by default
2008-08-15 09:28:16 -07:00