Andi Kleen [Wed, 30 Aug 2006 17:37:12 +0000 (19:37 +0200)]
[PATCH] x86_64: Recover 1MB of kernel memory
Noticed by Jan Beulich.
When the kernel was moved from 1MB to 2MB in 2.6.17 the kernel reservation
code wasn't adjusted and it still reserved starting with 1MB. This means 1MB always
were lost.
This patch fixes this by reserving only starting with _text.
Jan Beulich [Wed, 30 Aug 2006 17:37:11 +0000 (19:37 +0200)]
[PATCH] x86: Make backtracer fallback logic more bullet-proof
The unwinder fallback logic still had potential for falling through to
the legacy stack trace code without printing an indication (at once
serving as a separator) of this.
Further, the stack pointer retrieval for the fallback should be as
restrictive as possible (in order to avoid having the legacy stack
tracer try to access invalid memory). The patch tightens that, but
this could certainly be further improved.
Also making the call_trace command line option now conditional upon
CONFIG_STACK_UNWIND (as it's meaningless otherwise).
Jan Beulich [Wed, 30 Aug 2006 17:37:10 +0000 (19:37 +0200)]
[PATCH] x86: fix x86 cpuid keys used in alternative_smp()
By hard-coding the cpuid keys for alternative_smp() rather than using
the symbolic constant it turned out that incorrect values were used on
both i386 (0x68 instead of 0x69) and x86-64 (0x66 instead of 0x68).
One open question: Should this added push perhaps be made conditional
upon CONFIG_STACK_UNWIND or CONFIG_UNWIND_INFO?
[AK: not needed, these are all very slow paths]
One open question: Should these added pushes perhaps be made
conditional upon CONFIG_STACK_UNWIND or CONFIG_UNWIND_INFO?
[AK: Not needed -- these are all very slow paths]
Andi Kleen [Wed, 30 Aug 2006 17:37:06 +0000 (19:37 +0200)]
[PATCH] x86: Revert e820 MCFG heuristics
The check for the MCFG table being reserved in the e820 map was originally
added to detect a broken BIOS in a preproduction Intel SDV. However it also
breaks the Apple x86 Macs, which can't supply this properly, but need
a working MCFG. With this patch they wouldn't use the MCFG and not work.
After some discussion I think it's best to remove the heuristic again.
It also failed on some other boxes (although it didn't cause much
problems there because old style port access for PCI config space
still works as fallback), but the preproduction SDVs can just use
pci=nommcfg. Supporting production machines properly is more
important.
Edgar Hucek did all the debugging work.
Cc: Arjan van de Ven <arjan@infradead.org> Cc: Edgar Hucek <hostmaster@ed-soft.at> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[ARM] 3750/3: Fix double VFP emulation for EABI kernels
Patch from Daniel Jacobowitz
vfp_put_double didn't work in a CONFIG_AEABI kernel. By swapping
the arguments, we arrange for them to be in the same place regardless
of ABI. I made the same change to vfp_put_float for consistency.
Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Stefan Bader [Wed, 30 Aug 2006 12:33:39 +0000 (14:33 +0200)]
[S390] cio: unsolicited interrupts during sense pgid.
Calls to set a device online with path grouping may get stuck in
some cases because certain device conditions where discarded after
unsolicited interrupts.
Check subchannel activity after unsolicited interrupts and retry
the operation if the subchannel is idle.
Signed-off-by: Stefan Bader <shbader@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Devices enter no-path state after disabling a channel path
via the SE even though another path has been reenabled at the SE.
The devices are set into no-path state before triggering path
verification even though other paths may have become available.
To fix this trigger path verification before setting a device into
no-path state.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 30 Aug 2006 12:33:35 +0000 (14:33 +0200)]
[S390] cio: kernel stack overflow.
Use different kind of assignment to make sure gcc doesn't create code
that creates temp variables on the stack, assigns values to it and
copies the content of the whole temp variable to the destination.
This reduces stack usage of e.g. ccwgroup_driver_register from 976
to 48 bytes instead.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The copy_in_user primitive does not work as advertised. If the source
and target area are available copy_in_user copies one byte too much.
If one of the memory areas is not available it does not copy as much
data as it can, but up to 257 bytes less.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Stephen Rothwell [Wed, 30 Aug 2006 07:11:34 +0000 (17:11 +1000)]
[POWERPC] iseries: Define insw et al. so libata/ide will compile
These are build fixes that enable (for example) libata and the ide
code to actually build on iSeries. The associated hardware will never
be supported on legacy iSeries, so the code paths don't actually need
to work, but it is useful (especially for a combined kernel) if the
code can build.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Sergei Shtylyov [Mon, 28 Aug 2006 15:49:03 +0000 (19:49 +0400)]
[SERIAL] Make uart_match_port() work with all memory mapped UARTs
uart_match_port() always fails with UPIO_MEM32, UPIO_AU, and UPIO_TSI cases.
Since they match to the memory mapped UARTs, they should be handled just like
UPIO_MEM case.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Paul Mackerras [Wed, 30 Aug 2006 06:10:47 +0000 (16:10 +1000)]
[POWERPC] Fix irq enable/disable in smp_generic_take_timebase
Eran Ben-Avi <eranpublic@yahoo.com> pointed out that the arch/ppc version
of smp_generic_take_timebase disables interrupts on entry but exits without
restoring them. However, both it and the arch/powerpc version have another
problem, which is that they use local_irq_disable/enable rather than
local_irq_save/restore, and they are called with interrupts disabled.
This fixes both problems; it changes a return to a break in the arch/ppc
version, and changes both versions to use local_irq_save/restore.
Paul Mackerras [Wed, 30 Aug 2006 05:55:32 +0000 (15:55 +1000)]
[POWERPC] Fix problem with time not advancing on 32-bit platforms
This fixes a problem introduced in 5db9fa9593e2ff69f2b95f9d59229dc4faaa564d.
The last_jiffy per-cpu variable is only 32 bits on 32-bit machines, but it
was being compared with a 64-bit quantity (tb_next_jiffy), which resulted in
time not advancing.
This fixes it by changing last_jiffy to be 64 bits on all platforms. With
this, we no longer need tb_last_stamp as a 32-bit version of tb_last_jiffy,
so this gets rid of tb_last_stamp and we just use tb_last_jiffy instead.
This also fixes a bug when the boot cpu is not online, because using
tb_last_stamp could have caused the wrong timebase origin value to be used
when calculating the time of day.
Will Schmidt [Fri, 25 Aug 2006 20:46:59 +0000 (15:46 -0500)]
[POWERPC] Fix up ibm_architecture_vec definition
This problem was noticed by one of the Phyp firmware folks.
Our ibm,client-architecture-support call was failing.
This corrects the vector length parameters being passed in.
Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
[POWERPC] Make OF irq map code detect more error cases
Device-tree bugs on js20 with some versions of SLOF were causing the
interrupt for IDE to not be parsed correctly and fail to boot. This
patch adds a bit more sanity checking to the parser to detect some of
those errors and fail instead of returning bogus information. The
powerpc PCI code can then trigger a fallback that works on those
machines.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Zang Roy-r61911 [Fri, 25 Aug 2006 04:16:30 +0000 (14:16 +1000)]
[POWERPC] Support for "weird" MPICs and fixup mpc7448_hpc2
This adds a new hardware information table for mpic. This enables
the mpic code to deal with mpic controllers with different register
layouts and hardware behaviours.
This introduces CONFIG_MPIC_WEIRD. For boards with non standard mpic
controllers, select CONFIG_MPIC_WEIRD and add its hardware information
in the mpic_infos[] array.
TSI108/109 PIC takes the first index of weird hardware information
table. :) The table can be extended. The Tsi108/109 PIC looks like
standard OpenPIC but, in fact, is different in register mapping and
behavior.
The patch does not affect the behavior of standard mpic. If
CONFIG_MPIC_WEIRD is not defined, the code is essentially identical to
the current code.
[benh@kernel.crashing.org:
This patch is a slightly cleaned up version of Zang Roy's support for
the TSI108 MPIC variant. It also fixes up MPC7448_hpc2 to use the new
version of the type macros and changes the way MPIC is selected in
Kconfig to better match what is done for other system devices.
]
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Unlike the hugetlb code paths, the normal fault code is not setup to
propagate PTE changes for large page sizes correctly like the ones we
make for I/O mappings in io_remap_pfn_range().
It is absolutely necessary to update all sub-ptes of a largepage
mapping on a fault. Adding special handling for this would add
considerably complexity to tlb_batch_add(). So let's just side-step
the issue and forcefully dirty any writable PTEs created by
io_remap_pfn_range().
The only other real option would be to disable to large PTE code of
io_remap_pfn_range() and we really don't want to do that.
Much thanks to Mikael Pettersson for tracking down this problem and
testing debug patches.
Signed-off-by: David S. Miller <davem@davemloft.net>
Keir Fraser [Tue, 29 Aug 2006 09:43:49 +0000 (02:43 -0700)]
[IPV6]: ipv6_add_addr should install dstentry earlier
ipv6_add_addr allocates a struct inet6_ifaddr and a dstentry, but it
doesn't install the dstentry in ifa->rt until after it releases the
addrconf_hash_lock. This means other CPUs will be able to see the new
address while it hasn't been initialized completely yet.
One possible fix would be to grab the ifp->lock spinlock when
creating the address struct; a simpler fix is to just move the
assignment.
Acked-by: jbeulich@novell.com Acked-by: okir@suse.de Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
When I tested Linux kernel 2.6.17.7 about statistics
"ipv6IfStatsInAddrErrors", found that this counter couldn't increase
correctly. The criteria is RFC2465:
ipv6IfStatsInAddrErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of input datagrams discarded because
the IPv6 address in their IPv6 header's destination
field was not a valid address to be received at
this entity. This count includes invalid
addresses (e.g., ::0) and unsupported addresses
(e.g., addresses with unallocated prefixes). For
entities which are not IPv6 routers and therefore
do not forward datagrams, this counter includes
datagrams discarded because the destination address
was not a local address."
::= { ipv6IfStatsEntry 5 }
When I send packet to host with destination that is ether invalid
address(::0) or unsupported addresses(1::1), the Linux kernel just
discard the packet, and the counter doesn't increase(in the function
ip6_pkt_discard).
Signed-off-by: Lv Liangying <lvly@nanjing-fnst.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 29 Aug 2006 05:12:54 +0000 (22:12 -0700)]
[E100]: Add module option to ignore bad EEPROM checksums.
Several people run into the situation where the E100
EEPROM contents are fine, but the checksum hasn't been
set properly. This renders the device useless for
them even though it would function correctly.
The default is off, which retains the current behavior.
Signed-off-by: David S. Miller <davem@davemloft.net>
[SCTP]: Fix sctp_primitive_ABORT() call in sctp_close().
With the recent fix, the callers of sctp_primitive_ABORT()
need to create an ABORT chunk and pass it as an argument rather
than msghdr that was passed earlier.
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
[POWERPC] Fix performance regression in IRQ radix tree locking
When reworking the powerpc irq code, I figured out that we were using
the radix tree in a racy way. As a temporary fix, I put a spinlock in
there. However, this can have a significant impact on performances. This
patch reworks that to use a smarter technique based on the fact that
what we need is in fact a rwlock with extremely rare writers (thus
optimized for the read path).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Kim Phillips [Fri, 25 Aug 2006 16:59:07 +0000 (11:59 -0500)]
[POWERPC] Adapt ipic driver to new host_ops interface, add set_irq_type to set IRQ sense
This converts ipic code to Benh's IRQ mods. For the IPIC, IRQ sense values in the device tree equal those in include/linux/irq.h; that's 8 for low assertion (most internal IRQs on mpc83xx), and 2 for high-to-low change.
spinlocks added to [un]mask, ack operations; default handler and type now set in host_map; and redundant condition check eliminated.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
[CIFS] Do not send Query All EAs SMB when mount option nouser_xattr
[CIFS] endian errors in lanman protocol support
[CIFS] Fix oops in cifs_close due to unitialized lock sem and list in
[CIFS] Fix oops when negotiating lanman and no password specified
[CIFS]
[CIFS] Allow cifsd to suspend if connection is lost
[CIFS] Make midState usage more consistent
[CIFS] spinlock protect read of last srv response time in timeout path
[CIFS] Do not time out posix brl requests when using new posix setfileinfo
Larry Finger [Thu, 24 Aug 2006 04:02:40 +0000 (23:02 -0500)]
[PATCH] bcm43xx: Set floor of wireless signal and noise at -110 dBm
This patch sets the floor of wireless level (signal) and noise at
-110 dBm, which makes them be comatible with RCPI, as discussed by
Simon Barber. With this change, bcm43xx-softmac and bcm43xx-d80211
behave the same.
Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Larry Finger [Wed, 23 Aug 2006 15:04:01 +0000 (10:04 -0500)]
[PATCH] bcm43xx - set correct value in mac_suspended for ifdown/ifup sequence
When bcm43xx-softmac is given an ifdown/ifup sequence, the value for
bcm->mac_suspended ends up wrong, which leads to a large number of
assert(bcm->mac_suspended>=0) messages. This one-line patch fixes
this problem.
Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch enables the ipw2200 driver to support passive scanning as
offered by the wireless extensions. For this, I enhanced the ipw_wx_set_scan
function in such a way that it differentiates between a passive and an
active scan request. Additionally, I added a new function called
ipw_request_passive_scan that is similiar to the ipw_request_scan
function to perform passive scans. Last but not least, I added a field
(in fact it is a work_struct struct) called request_passive_scan to
the ipw_priv struct.
Signed-off-by: Thomas King <king@informatik.uni-mannheim.de> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zhu Yi [Mon, 21 Aug 2006 03:38:39 +0000 (11:38 +0800)]
[PATCH] ipw2200: Add pci .shutdown handler
If we don't disable the card in the pci .shutdown method, there might be
pending interrupts still in the interrupt line after a reboot on some
platform. This patch fixes the problem by disable the hardware in the pci
.shutdown method.
Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zhu Yi [Mon, 21 Aug 2006 03:38:28 +0000 (11:38 +0800)]
[PATCH] ipw2200: Fix kernel Oops if cmdlog debug is enabled
When command error log debug is enabled, we write every host command and
parameters into a buffer. But we didn't alloc the parameter buffer for this
case. The patch adds struct cmdlog_host_cmd so that the buffer is allocated
from the stack.
Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zhu Yi [Mon, 21 Aug 2006 03:38:08 +0000 (11:38 +0800)]
[PATCH] ipw2200: remove the MAC timestamp present field from radiotap head
IEEE80211_RADIOTAP_TSFT is defined as the Value in microseconds of the
MAC's 64-bit 802.11 Time Synchronization Function timer when the first bit
of the MPDU arrived at the MAC. Since ipw2200 hardware doesn't provide this
value, we disable this feature from the radiotap header present flag.
Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zhu Yi [Mon, 21 Aug 2006 03:37:26 +0000 (11:37 +0800)]
[PATCH] ipw2200: Reassociate even if set the same essid.
This patch traps the case when the essid is being set to its
current value. If the essid is being set again and we are already
associated, chances are some other parameters have also been altered.
I think it is safer to do the re-association for this case.
Signed-off-by: Bill Moss <bmoss@clemson.edu> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zhu Yi [Mon, 21 Aug 2006 03:37:13 +0000 (11:37 +0800)]
[PATCH] ipw2200: ipw_wx_set_essid fix
This patch cleanups the ipw_wx_set_essid code and forces a reassociation
when setting the essid to "any". I have tested this patch with iwconfig. It
makes ipw2200 compliant with all the cases mentioned in the iwconfig man
page. The commands
iwconfig iface essid any
iwconfig iface essid -- any
iwconfig iface essid off
iwconfig iface essid on
all seemed to work correctly. None of this worked before the patch.
Note, this patch treats
iwconfig iface essid
iwconfig iface essid ""
The same. It produces an error message: essid: Unknown host.
Since an essid of "" is not mentioned in the iwconfig man page.
Signed-off-by: Bill Moss <bmoss@clemson.edu> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zhu Yi [Mon, 21 Aug 2006 03:37:01 +0000 (11:37 +0800)]
[PATCH] ipw2200: SIOCGIWFREQ ioctl returns frequency rather than channel
The SIOCGIWFREQ ioctl fills the request structure's freq field by setting
the exponent to 0 and the mantissa to the current channel number. The
iwconfig tool works around this behaviour by looking up the frequency
from the channel table if a frequency below 1kHz is returned, other tools
(e.g. kwlaninfo) don't. According to the comment in the iwconfig source
the driver is supposed to return the frequency, not the channel number.
Signed-off-by: Ingo van Lil <inguin@gmx.de> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zhu Yi [Mon, 21 Aug 2006 03:36:53 +0000 (11:36 +0800)]
[PATCH] ipw2200: always enable frequently used debugging code
Moving part of the debugging code from IPW_DEBUG to IPW_LL_DEBUG (low level
debugging) and make IPW_DEBUG be always enabled. IPW_LL_DEBUG still needs
to be enabled by selecting CONFIG_IPW2200_DEBUG. But it is highly
deprecated for normal users since it adds higher debug verbosity in driver
hot paths.
Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zhu Yi [Mon, 21 Aug 2006 03:34:19 +0000 (11:34 +0800)]
[PATCH] ieee80211: Workaround malformed 802.11 frames from AP
Stop processing further but return success when we receive a malformed
packet from the AP. We need this patch to workaround some AP bugs. For
example, the beacon frames from the Orinoco AP1000 contains an IE (value
= 128) with length equals to 8 but the actual frame length is only 7.
Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zhu Yi [Mon, 21 Aug 2006 03:33:56 +0000 (11:33 +0800)]
[PATCH] ieee80211: Fix TKIP and WEP decryption error on SMP machines
The IEEE80211 TKIP and WEP Tx and Rx paths use the same crypto_tfm to encrypt
and decrypt data. During the encrypt and decrypt process, both of them will
set a new key to crypto_tfm. If they happen on the same time, it will
corrupt the crypto_tfm. Thus users will receive an ICV error or Michael MIC
error. This only likely to happen on SMP box with heavy traffic both on Tx
and Rx. The patch use two sets of crypto_tfms to avoid this problem.
Signed-off-by: Hong Liu <hong.liu@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
hard_start_xmit should return a NETIF_TX_FOO error code.
Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Larry Finger [Wed, 16 Aug 2006 16:05:16 +0000 (11:05 -0500)]
[PATCH] bcm43xx: optimization of DMA bitfields
Convert the bitfields in the bcm43xx DMA code to properly
aligned u8 booleans. These flags are accessed in the DMA
hotpath, so it's a good idea to waste a few bytes of memory
for the sake of speed by not requiring masking (and probably
shifting) of the bitfields.
Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Tue, 15 Aug 2006 22:25:16 +0000 (00:25 +0200)]
[PATCH] bcm43xx: >1G and 64bit DMA support
This is a rewrite of the bcm43xx DMA engine. It adds support
for >1G of memory (for chips that support the extension bits)
and 64-bit DMA (for chips that support it).
Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
The airo driver is currently caching a pid for later use, but with the
implementation of containers, pids themselves do not uniquely identify a
task. The driver is also using kernel_thread() which is deprecated in
drivers.
This patch essentially replaces the kernel_thread() with kthread_create().
It also stores the task_struct of the airo_thread rather than its pid.
Since this introduces a second task_struct in struct airo_info, the patch
renames airo_info.task to airo_info.list_bss_task.
As an extension of these changes, the patch further:
- replaces kill_proc() with kthread_stop()
- replaces signal_pending() with kthread_should_stop()
- removes thread completion synchronisation which is handled by
kthread_stop().
[akpm@osdl.org: fix races] Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com> Cc: Javier Achirica <achirica@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Linus Torvalds [Tue, 29 Aug 2006 03:19:16 +0000 (20:19 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 3761/1: fix armv4t breakage after adding thumb interworking to userspace helpers
[ARM] Add Integrator support for glibc outb() and friends
[ARM] Move prototype for register_isa_ports to asm/io.h
[ARM] Arrange for isa.c to use named initialisers
[ARM] 3741/1: remove sa1111.c build warning on non-sa1100 systems
[ARM] 3760/1: This patch adds timeouts while working with SSP registers. Such timeouts were en
[ARM] 3758/1: Preserve signalling NaNs in conversion
[ARM] 3749/3: Correct VFP single/double conversion emulation
[ARM] 3748/3: Correct error check in vfp_raise_exceptions
[ARM] 3761/1: fix armv4t breakage after adding thumb interworking to userspace helpers
Patch from Lennert Buytenhek
On armv4t systems, we have always compiled the kernel with -march=armv4
instead of -march=armv4t, which means that any use of bx will bomb out.
Commit ba9b5d76372dc290b6ca04dad93927a22c2ac49a introduced the use of
bx in the kernel, which means we need to compile with -march=armv4t on
armv4t systems now.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Alan Cox [Sun, 27 Aug 2006 08:24:02 +0000 (01:24 -0700)]
[PATCH] Fix tty layer DoS and comment relevant code
Unlike the other tty comment patch this one has code changes. Specifically
it limits the queue size for a tty to 64K characters (128Kbytes) worst case
even if the tty is ignoring tty->throttle. This is because certain drivers
don't honour the throttle value correctly, although it is a useful
safeguard anyway.
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 27 Aug 2006 08:24:00 +0000 (01:24 -0700)]
[PATCH] cdrom/gdsc: fix printk format warning
Fix printk format warning:
drivers/cdrom/gscd.c:269: warning: format â\80\98%luâ\80\99 expects type â\80\98long unsigned intâ\80\99, but argument 2 has type â\80\98unsigned intâ\80\99
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andrew Morton [Sun, 27 Aug 2006 08:23:58 +0000 (01:23 -0700)]
[PATCH] /proc/meminfo: don't put spaces in names
None of the other /proc/meminfo lines have a space in the identifier. This
post-2.6.17 addition has the potential to break existing parsers, so use an
underscore instead (like Committed_AS).
Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Dave Jones [Sun, 27 Aug 2006 08:23:57 +0000 (01:23 -0700)]
[PATCH] fix up lockdep trace in fs/exec.c
This fixes the locking error noticed by lockdep:
=============================================
[ INFO: possible recursive locking detected ]
---------------------------------------------
init/1 is trying to acquire lock:
(&sighand->siglock){....}, at: [<c047a78a>] flush_old_exec+0x3ae/0x859
but task is already holding lock:
(&sighand->siglock){....}, at: [<c047a77a>] flush_old_exec+0x39e/0x859
other info that might help us debug this:
2 locks held by init/1:
#0: (tasklist_lock){..--}, at: [<c047a76a>] flush_old_exec+0x38e/0x859
#1: (&sighand->siglock){....}, at: [<c047a77a>] flush_old_exec+0x39e/0x859
Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ingo Molnar [Sun, 27 Aug 2006 08:23:56 +0000 (01:23 -0700)]
[PATCH] lockdep: annotate idescsi_pc_intr()
idescsi_pc_intr() uses local_irq_enable() in IRQ context: annotate it.
(this has no effect on kernels with lockdep disabled. On kernels with lockdep
enabled this means that we wont actually disable interrupts, and the warning
message will go away as well.)
In file included from include/asm/mmzone.h:18,
from include/linux/mmzone.h:439,
<snip>
include/asm/srat.h:31:2: error: #error CONFIG_ACPI_SRAT not defined, and srat.h header has been included
make[1]: *** [arch/i386/kernel/asm-offsets.s] Error 1
This can happen with CONFIG_NUMA && !CONFIG_ACPI && !CONFIG_X86_NUMAQ
Nick Piggin [Sun, 27 Aug 2006 08:23:54 +0000 (01:23 -0700)]
[PATCH] cpuset: oom panic fix
cpuset_excl_nodes_overlap always returns 0 if current is exiting. This caused
customer's systems to panic in the OOM killer when processes were having
trouble getting memory for the final put_user in mm_release. Even though
there were lots of processes to kill.
Change to returning 1 in this case. This achieves parity with !CONFIG_CPUSETS
case, and was observed to fix the problem.
Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Badari Pulavarty [Sun, 27 Aug 2006 08:23:52 +0000 (01:23 -0700)]
[PATCH] Manage jbd allocations from its own slabs
JBD currently allocates commit and frozen buffers from slabs. With
CONFIG_SLAB_DEBUG, its possible for an allocation to cross the page
boundary causing IO problems.
Paul Jackson [Sun, 27 Aug 2006 08:23:51 +0000 (01:23 -0700)]
[PATCH] cpuset: top_cpuset tracks hotplug changes to cpu_online_map
Change the list of cpus allowed to tasks in the top (root) cpuset to
dynamically track what cpus are online, using a CPU hotplug notifier. Make
this top cpus file read-only.
On systems that have cpusets configured in their kernel, but that aren't
actively using cpusets (for some distros, this covers the majority of
systems) all tasks end up in the top cpuset.
If that system does support CPU hotplug, then these tasks cannot make use
of CPUs that are added after system boot, because the CPUs are not allowed
in the top cpuset. This is a surprising regression over earlier kernels
that didn't have cpusets enabled.
In order to keep the behaviour of cpusets consistent between systems
actively making use of them and systems not using them, this patch changes
the behaviour of the 'cpus' file in the top (root) cpuset, making it read
only, and making it automatically track the value of cpu_online_map. Thus
tasks in the top cpuset will have automatic use of hot plugged CPUs allowed
by their cpuset.
Thanks to Anton Blanchard and Nathan Lynch for reporting this problem,
driving the fix, and earlier versions of this patch.
Signed-off-by: Paul Jackson <pj@sgi.com> Cc: Nathan Lynch <ntl@pobox.com> Cc: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
NeilBrown [Sun, 27 Aug 2006 08:23:50 +0000 (01:23 -0700)]
[PATCH] md: fix recent breakage of md/raid1 array checking
A recent patch broke the ability to do a user-request check of a raid1.
This patch fixes the breakage and also moves a comment that was dislocated
by the same patch.
Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
NeilBrown [Sun, 27 Aug 2006 08:23:49 +0000 (01:23 -0700)]
[PATCH] md: avoid backward event updates in md superblock when degraded.
If we
- shut down a clean array,
- restart with one (or more) drive(s) missing
- make some changes
- pause, so that they array gets marked 'clean',
the event count on the superblock of included drives
will be the same as that of the removed drives.
So adding the removed drive back in will cause it
to be included with no resync.
To avoid this, we only update the eventcount backwards when the array
is not degraded. In this case there can (should) be no non-connected
drives that we can get confused with, and this is the particular case
where updating-backwards is valuable.
Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Tom Zanussi [Sun, 27 Aug 2006 08:23:47 +0000 (01:23 -0700)]
[PATCH] Documentation update for relay interface
Here's updated documentation for the relay interface, rewritten to match
the relayfs->relay changes. It also moves relayfs.txt to relay.txt in the
process.
It includes the changes to relayfs.txt previously posted by Randy Dunlap,
thanks for those.
The relay-apps examples have also been updated to match, and can be found
on the sourceforge relayfs website.
Signed-off-by: Tom Zanussi <zanussi@us.ibm.com> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
projects / linux-2.6 / log