Sean Hefty [Wed, 7 Apr 2010 00:26:13 +0000 (17:26 -0700)]
rdma/ucm: allow user space to specify AF_IB when joining multicast
Allow user space applications to join multicast groups using MGIDs
directly. MGIDs may be passed using AF_IB addresses. Since the
current multicast join command only supports addresses as large as
sockaddr_in6, define a new structure for joining addresses specified
using sockaddr_ib.
Since port space IB allows the user to specify the qkey when
resolving a remote UD QP address, when joining the multicast
group use the qkey value, if one has been assigned.
Sean Hefty [Wed, 7 Apr 2010 00:22:43 +0000 (17:22 -0700)]
rdma/ucm: allow user space to pass AF_IB into resolve
Allow user space applications to call resolve_addr using
AF_IB. To support sockaddr_ib, we need to define a new
structure capable of handling the larger address size.
Sean Hefty [Wed, 7 Apr 2010 00:22:42 +0000 (17:22 -0700)]
rdma/ucm: allow user space to bind to AF_IB
Support user space binding to addresses using AF_IB. Since
sockaddr_ib is larger than sockaddr_in6, we need to define
a larger structure when binding using AF_IB. This time we
use sockaddr_storage to cover future cases.
Sean Hefty [Wed, 7 Apr 2010 00:22:41 +0000 (17:22 -0700)]
rdma/ucm: name changes to indicate only IP addresses supported
Several commands into the RDMA CM from user space are
restricted to supporting addresses which fit into a sockaddr_in6
structure: bind address, resolve address, and join multicast.
With the addition of AF_IB, we need to support addresses
which are larger than sockaddr_in6. This will be done by
adding new commands that exchange address information using
sockaddr_storage. However, to support existing applications,
we maintain the current commands and structures, but rename
them to indicate that they only support IPv4 and v6 addresses.
Sean Hefty [Wed, 7 Apr 2010 00:22:41 +0000 (17:22 -0700)]
rdma/ucm: add ability to query GID addresses
Part of address resolution is mapping IP addresses to IB GIDs.
With the changes to support querying larger addresses and more
path records, also provide a way to query IB GIDs after
resolution completes.
Sean Hefty [Wed, 7 Apr 2010 00:22:38 +0000 (17:22 -0700)]
rdma/ucm: support querying when IB paths are not reversible
The current query_route call can return up to two path records.
The assumption being that one is the primary path, with optional
support for an alternate path. In both cases, the paths are
assumed to be reversible and are used to send CM MADs.
With the ability to manually set IB path data, the rdma cm
can eventually be capable of using up to 6 paths per
connection:
forward primary, reverse primary,
forward alternate, reverse alternate,
reversible primary path for CM MADs
reversible alternate path for CM MADs.
(It is unclear at this time if IB routing will complicate this.)
In order to handle more flexible routing topologies, add a new
command to report any number of paths.
Sean Hefty [Wed, 7 Apr 2010 00:22:38 +0000 (17:22 -0700)]
ib/sa: export function to pack a path record into wire format
Allow converting from struct ib_sa_path_rec to the IB defined
SA path record wire format. This will be used to report path
data from the rdma cm into user space.
Sean Hefty [Wed, 7 Apr 2010 00:22:37 +0000 (17:22 -0700)]
rdma/ucm: support querying for AF_IB addresses
The sockaddr structure for AF_IB is larger than sockaddr_in6.
The rdma cm user space ABI uses the latter to exchange address
information between user space and the kernel.
To support querying for larger addresses, define a new query
command that exchanges data using sockaddr_storage, rather
than sockaddr_in6. Unlike the existing query_route command,
the new command only returns address information. Route
(i.e. path record) data is separated.
Sean Hefty [Wed, 7 Apr 2010 00:22:35 +0000 (17:22 -0700)]
rdma/cm: expose private data when using AF_IB
If the source or destination address is AF_IB, then do not
reserve a portion of the private data in the IB CM REQ or SIDR
REQ messages for the cma header. Instead, all private data
should be exported to the user. When AF_IB is used, the
rdma cm does not have sufficient information to fill in the
cma header. Additionally, this will be necessary to support
any IB connection through the rdma cm interface,
Sean Hefty [Wed, 7 Apr 2010 00:22:33 +0000 (17:22 -0700)]
rdma/cm: add support for AF_IB to cma_get_service_id
cma_get_service_id forms the service ID based on the port space
and port number of the rdma_cm_id. Extend the call to support
AF_IB, which contains the service ID directly. This will
be needed to support any arbitrary SID.
Sean Hefty [Wed, 7 Apr 2010 00:22:33 +0000 (17:22 -0700)]
rdma/cm: add support for AF_IB to rdma_resolve_addr
Allow the user to specify the remote address using AF_IB format.
When AF_IB is used, the remote address simply needs to be recorded,
and no resolution using ARP is done. The local address may still
need to be resolved however.
Sean Hefty [Wed, 7 Apr 2010 00:22:31 +0000 (17:22 -0700)]
rdma/cm: do not modify sa_family when setting loopback address
cma_resolve_loopback is called after an rdma_cm_id has been
bound to a specific sa_family and port. Once the
source sa_family for the id has been set, do not modify it.
Only the actual IP address portion of the source address
needs to be set.
As part of this fix, we can simplify setting the source address
by moving the loopback address assignment from cma_resolve_loopback
to cma_bind_loopback. cma_bind_loopback is only invoked when
the source address is the loopback address.
Finally, add loopback support for AF_IB as part of the change.
Sean Hefty [Wed, 7 Apr 2010 00:22:30 +0000 (17:22 -0700)]
rdma/cm: Allow user to specify AF_IB when binding
Modify rdma_bind_addr to allow the user to specify AF_IB when
binding to a device. AF_IB indicates that the user is not
mapping an IP address to the native IB addressing. (The mapping
may have already been done, or is not needed.)
Sean Hefty [Wed, 7 Apr 2010 00:22:12 +0000 (17:22 -0700)]
rdma/cm: set qkey for port space IB
Allow the user to specify the qkey when using port space IB. The
qkey is added to struct rdma_ucm_conn_param in place of a reserved
field, but for backwards compatability, is only accessed if the
associated rdma_cm_id is using the IB port space.
Sean Hefty [Wed, 31 Mar 2010 00:22:34 +0000 (16:22 -0800)]
rdma/ucm: change event handling based on port space
The rdma_ucm handles events differently based on the port space
of the associated rdma_cm_id. In order to support RDMA_PS_IB,
fix the handling based on the event.
Sean Hefty [Wed, 31 Mar 2010 00:22:33 +0000 (16:22 -0800)]
rdma/ucm: add support for RDMA_PS_IB when creating an ID
In order to support RDMA_PS_IB, we need to know the qp type
to associated with the rdma cm id. Receive the qp type from
user space using currently reserved fields. Previous kernels
do not support RDMA_PS_IB, so we only read out the qp type
data if PS_IB has been selected. This avoids issues reading
uninitialized data from existing applications.
Sean Hefty [Wed, 31 Mar 2010 00:20:09 +0000 (16:20 -0800)]
rdma/cm: specify QP type when creating an ID
The rdma_cm infers the QP type from the port space selected by the
user. In order to support RDMA_PS_IB, we need to know which
QP type the user intends to support in order to perform the
correction operation, such as sending a REQ versus SIDR.
Modify rdma_create_id to allow the user to specify the QP type,
and use it to make our selections of datagram versus connected
mode.
Sean Hefty [Wed, 31 Mar 2010 00:01:07 +0000 (16:01 -0800)]
rdma/cm: update port reservation to support AF_IB
Update the port reservation code path to support AF_IB addresses.
Define a new port space, RDMA_PS_IB, for AF_IB addressing.
The AF_IB port space is a 64-bit service id (SID), which the
user can control through the use of a mask. The rdma_cm
will assign values to the unmasked portions of the SID
when an rdma_cm_id is bound to an AF_IB address.
Because the IB spec divides the SID range into several regions,
a SID/mask combination may fall into one of the existing
port space ranges as defined by the RDMA CM IP Annex. We need
to coordinate port reservation between RDMA_PS_IB and
RDMA_PS_TCP/RDMA_PS_UDP.
Sean Hefty [Wed, 17 Mar 2010 18:10:23 +0000 (10:10 -0800)]
ib/addr: add AF_IB support to ip_addr_size
Add support for AF_IB to ip_addr_size, and rename the function
to account for the change. Give the compiler more control over
whether the call should be inline or not by moving the definition
into the .c file, removing the static inline, and exporting it.
Sean Hefty [Wed, 17 Mar 2010 18:09:09 +0000 (10:09 -0800)]
rdma/cm: include AF_IB in loopback and any address checks
Enhance checks for loopback and any address to support AF_IB
in addition to AF_INET and AF_INT6. This will allow future
patches to use AF_IB when binding and resolving addresses.
Sean Hefty [Wed, 17 Mar 2010 18:09:03 +0000 (10:09 -0800)]
rdma/cm: fix handling of ipv6 addressing in cma_use_port
cma_use_port is coded assuming that the sockaddr is an ipv4 address.
Since ipv6 addressing is supported, and also to support other address
families, make the code more generic in its address handling.
Carlos O'Donell [Mon, 22 Feb 2010 23:25:59 +0000 (23:25 +0000)]
parisc: Set PCI CLS early in boot.
Set the PCI CLS early in the boot process to prevent
device failures. In pcibios_set_master use the new
pci_cache_line_size instead of a hard-coded value.
Signed-off-by: Carlos O'Donell <carlos@codesourcery.com> Reviewed-by: Grant Grundler <grundler@google.com> Signed-off-by: Kyle McMartin <kyle@redhat.com>
Michal Simek [Mon, 15 Feb 2010 09:50:42 +0000 (10:50 +0100)]
microblaze: Fix cache loop function for cache range
I create wrong asm code but none test shows that this part of code is wrong.
I am not convinces that were good idea to create asm optimized macros
for caches. The reason is that there is not optimization with previous code
that's why make sense to add old code and do some benchmarking which
functions are faster.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
net: bug fix for vlan + gro issue
tc35815: Remove a wrong netif_wake_queue() call which triggers BUG_ON
cdc_ether: new PID for Ericsson C3607w to the whitelist (resubmit)
IPv6: better document max_addresses parameter
MAINTAINERS: update mv643xx_eth maintenance status
e1000: Fix DMA mapping error handling on RX
iwlwifi: sanity check before counting number of tfds can be free
iwlwifi: error checking for number of tfds in queue
iwlwifi: set HT flags after channel in rxon
Ajit Khaparde [Tue, 16 Feb 2010 20:25:43 +0000 (20:25 +0000)]
net: bug fix for vlan + gro issue
Traffic (tcp) doesnot start on a vlan interface when gro is enabled.
Even the tcp handshake was not taking place.
This is because, the eth_type_trans call before the netif_receive_skb
in napi_gro_finish() resets the skb->dev to napi->dev from the previously
set vlan netdev interface. This causes the ip_route_input to drop the
incoming packet considering it as a packet coming from a martian source.
I could repro this on 2.6.32.7 (stable) and 2.6.33-rc7.
With this fix, the traffic starts and the test runs fine on both vlan
and non-vlan interfaces.
CC: Herbert Xu <herbert@gondor.apana.org.au> CC: Patrick McHardy <kaber@trash.net> Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 24 Feb 2010 02:15:05 +0000 (18:15 -0800)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: Be in TS_POLLING state during mwait based C-state entry
ACPI: Fix regression where _PPC is not read at boot even when ignore_ppc=0
acer-wmi: Respect current backlight level when loading
Linus Torvalds [Wed, 24 Feb 2010 02:13:34 +0000 (18:13 -0800)]
Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/vmwgfx: Fix queries if no dma buffer thrashing is occuring.
drm/nv50: fix vram ptes on IGPs to point at stolen system memory
drm/nv50: fix instmem binding on IGPs to point at stolen system memory
drm/nv50: improve vram page table construction
drm/nv50: more efficient clearing of gpu page table entries
drm/nv50: make nv50_mem_vm_{bind,unbind} operate only on vram
drm/nouveau: Fix up pre-nv17 analog load detection.
Fixing the build the b94b08081fcecf83fa690d6c5664f6316fe72208 way
breaks xpc because genksyms then fails to generate an CRC for
per_cpu____sn_cnodeid_to_nasid because of limitations in the
generic genksyms code.
Signed-off-by: Hedi Berriche <hedi@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Atsushi Nemoto [Fri, 19 Feb 2010 05:13:58 +0000 (05:13 +0000)]
tc35815: Remove a wrong netif_wake_queue() call which triggers BUG_ON
The netif_wake_queue() is called correctly (i.e. only on !txfull
condition) from txdone routine. So Unconditional call to the
netif_wake_queue() here is wrong. This might cause calling of
start_xmit routine on txfull state and trigger BUG_ON.
This bug does not happen when NAPI disabled. After txdone there
must be at least one free tx slot. But with NAPI, this is not
true anymore and the BUG_ON can hits on heavy load.
In this driver NAPI was enabled on 2.6.33-rc1 so this is
regression from 2.6.32 kernel.
Reported-by: Ralf Roesch <ralf.roesch@rw-gmbh.de> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
Torgny Johansson [Fri, 19 Feb 2010 01:59:15 +0000 (01:59 +0000)]
cdc_ether: new PID for Ericsson C3607w to the whitelist (resubmit)
This patch adds a new vid/pid to the cdc_ether whitelist.
Device added:
- Ericsson Mobile Broadband variant C3607w
Signed-off-by: Torgny Johansson <torgny.johansson@gmail.com>
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More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: David S. Miller <davem@davemloft.net>
Brian Haley [Mon, 22 Feb 2010 12:27:21 +0000 (12:27 +0000)]
IPv6: better document max_addresses parameter
Andrew Morton wrote:
>> >From ip-sysctl.txt file in kernel documentation I can see following description
>> for max_addresses:
>> max_addresses - INTEGER
>> Number of maximum addresses per interface. 0 disables limitation.
>> It is recommended not set too large value (or 0) because it would
>> be too easy way to crash kernel to allow to create too much of
>> autoconfigured addresses.
^^^^^^^^^^^^^^
>> If this parameter applies only for auto-configured IP addressed, please state
>> it more clearly in docs or rename the parameter to show that it refers to
>> auto-configuration.
It did mention autoconfigured in the text, but the below makes it more obvious.
More clearly document IPv6 max_addresses parameter.
Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Anton Blanchard [Fri, 19 Feb 2010 17:54:53 +0000 (17:54 +0000)]
e1000: Fix DMA mapping error handling on RX
Check for error return from pci_map_single/pci_map_page and clean up.
With this and the previous patch the driver was able to handle a significant
percentage of errors (I set the fault injection rate to 10% and could still
download large files at a reasonable speed).
Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
"Benjamin S." <sbenni@gmx.de> reports that the patch in question
causes a big drop in sequential throughput for him, dropping from
200MB/sec down to only 70MB/sec.
Needs to be investigated more fully, for now lets just revert the
offending commit.
Dave Airlie [Tue, 23 Feb 2010 05:42:18 +0000 (15:42 +1000)]
Merge remote branch 'nouveau/for-airlied' of ../drm-nouveau-next into drm-linus
* 'nouveau/for-airlied' of ../drm-nouveau-next:
drm/nv50: fix vram ptes on IGPs to point at stolen system memory
drm/nv50: fix instmem binding on IGPs to point at stolen system memory
drm/nv50: improve vram page table construction
drm/nv50: more efficient clearing of gpu page table entries
drm/nv50: make nv50_mem_vm_{bind,unbind} operate only on vram
drm/nouveau: Fix up pre-nv17 analog load detection.
Michael Neuling [Mon, 22 Feb 2010 20:44:24 +0000 (12:44 -0800)]
fs/exec.c: fix initial stack reservation
803bf5ec259941936262d10ecc84511b76a20921 ("fs/exec.c: restrict initial
stack space expansion to rlimit") attempts to limit the initial stack to
20*PAGE_SIZE. Unfortunately, in attempting ensure the stack is not
reduced in size, we ended up not changing the stack at all.
This size reduction check is not necessary as the expand_stack call does
this already.
This caused a regression in UML resulting in most guest processes being
killed.
Signed-off-by: Michael Neuling <mikey@neuling.org> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Anton Blanchard <anton@samba.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: James Morris <jmorris@namei.org> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jouni Malinen <j@w1.fi> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marcin Slusarz [Mon, 22 Feb 2010 20:44:22 +0000 (12:44 -0800)]
efifb: fix framebuffer handoff
Commit 4410f3910947dcea8672280b3adecd53cec4e85e ("fbdev: add support for
handoff from firmware to hw framebuffers") didn't add fb_destroy
operation to efifb. Fix it and change aperture_size to match size
passed to request_mem_region.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Reported-by: Alex Zhavnerchik <alex.vizor@gmail.com> Tested-by: Alex Zhavnerchik <alex.vizor@gmail.com> Acked-by: Peter Jones <pjones@redhat.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Dave Airlie <airlied@redhat.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jens Rottmann [Mon, 22 Feb 2010 20:44:20 +0000 (12:44 -0800)]
geode-mfgpt: restore previous behavior for selecting IRQ
geode-mfgpt: restore previous behavior for selecting IRQ
The MFGPT IRQ used to be, in order of decreasing priority,
* IRQ supplied by the user as a boot-time parameter,
* IRQ previously set by the BIOS or another driver,
* default IRQ given at compile time.
Return to this behavior, which got broken when splitting the
MFGPT/clocksource driver for 2.6.33-rc1.
Signed-off-by: Jens Rottmann <JRottmann@LiPPERTEmbedded.de> Acked-by: Andres Salomon <dilinger@collabora.co.uk> Cc: Jordan Crouse <jordan.crouse@amd.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pa[idp->layers] should be cleared even if it's not used by
sub_alloc() because it's used by mark idr_mark_full().
* The original condition check also assigned pa[l] to p which the new
code didn't do thus leaving p pointing at the wrong layer.
Both problems have been fixed and the idr code has received good amount
testing using userland testing setup where simple bitmap allocator is
run parallel to verify the result of idr allocation.
The bug this patch fixes is caused by sub_alloc() optimization path
bypassing out-of-room condition check and restarting allocation loop
with starting value higher than maximum allowed value. For detailed
description, please read commit message of 859ddf09.
Signed-off-by: Tejun Heo <tj@kernel.org>
Based-on-patch-from: Eric Paris <eparis@redhat.com> Reported-by: Eric Paris <eparis@redhat.com> Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Tested-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ben Skeggs [Fri, 19 Feb 2010 22:06:36 +0000 (08:06 +1000)]
drm/nv50: fix instmem binding on IGPs to point at stolen system memory
This also modifies the unused PRAMIN PT entries to be all zeroes, can't
really recall why I used 9/0 initially, just that it didn't work for
some reason. It was likely masking a bug elsewhere that's since been
fixed.
Ben Skeggs [Thu, 11 Feb 2010 01:31:44 +0000 (11:31 +1000)]
drm/nv50: improve vram page table construction
This commit changes nouveau to construct PTEs which look very much like
the ones the binary driver creates.
I presume that filling multiple PTEs identically with length flags and
the physical address of the start of a block of VRAM is a hint to the
memory controller that it need not perform additional page table lookups
for that range of addresses.
Hauke Mehrtens [Sat, 20 Feb 2010 18:51:20 +0000 (19:51 +0100)]
MIPS: BCM47xx: Fix 128MB RAM support
Ignoring the last page when ddr size is 128M. Cached accesses to last page
is causing the processor to prefetch using address above 128M stepping out
of the DDR address space.
Yoichi Yuasa [Sat, 20 Feb 2010 12:23:22 +0000 (21:23 +0900)]
MIPS: Highmem: Fix build error
arch/mips/mm/highmem.c: In function 'kmap_init':
arch/mips/mm/highmem.c:130: error: 'init_mm' undeclared (first use in this function)
arch/mips/mm/highmem.c:130: error: (Each undeclared identifier is reported only once
arch/mips/mm/highmem.c:130: error: for each function it appears in.)
HAVE_ARCH_TRACEHOOK requires defining the user_regset interfaces,
including task_user_regset_view(). parisc doesn't do that yet,
so don't lie about it.
ACPI: Be in TS_POLLING state during mwait based C-state entry
ACPI deep C-state entry had a long standing bug/missing feature, wherein we were sending
resched IPIs when an idle CPU is in mwait based deep C-state. Only mwait based C1 was using
the write to the monitored address to wake up mwait'ing CPU.
This patch changes the code to retain TS_POLLING bit if we are entering an mwait based
deep C-state.
The patch has been verified to reduce the number of resched IPIs in general and also
improves the performance/power on workloads with low system utilization (i.e., when mwait based
deep C-states are being used).
Fixes "netperf ~50% regression with 2.6.33-rc1, bisect to 1b9508f"
http://marc.info/?l=linux-kernel&m=126441481427331&w=4
Reported-by: Lin Ming <ming.m.lin@intel.com> Tested-by: Alex Shi <alex.shi@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Linus Torvalds [Mon, 22 Feb 2010 16:48:06 +0000 (08:48 -0800)]
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: usbtouchscreen - extend coordinate range for Generaltouch devices
Input: polldev can cause crash in case when polling disabled
i915 / PM: Fix hibernate regression caused by suspend/resume splitting
Commit 84b79f8d2882b0a84330c04839ed4d3cefd2ff77 (drm/i915: Fix crash
while aborting hibernation) attempted to fix a regression introduced
by commit cbda12d77ea590082edb6d30bd342a67ebc459e0 (drm/i915:
implement new pm ops for i915), but it went too far trying to split
the freeze/suspend and resume/thaw parts of the code. As a result,
it introduced another regression, which only is visible on some systems.
Fix the problem by merging i915_drm_suspend() with
i915_drm_freeze() and moving some code from i915_resume()
into i915_drm_thaw(), so that intel_opregion_free() and
intel_opregion_init() are also executed in the freeze and thaw code
paths, respectively.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-and-tested-by: Pedro Ribeiro <pedrib@gmail.com> Tested-by: Tino Keitel <tino.keitel@tikei.de> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
iwlwifi: sanity check before counting number of tfds can be free
Check the frame control for ieee80211_is_data_qos() is true before
counting the number of tfds can be free, the tfds_in_queue only
increment when ieee80211_is_data_qos() is true before transmit; so it
should only decrement if the type match.
Remove ieee80211_is_data_qos check for frame_ctrl in tx_resp to avoid
invalid information pass from uCode.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Wey-Yi Guy [Fri, 19 Feb 2010 23:47:32 +0000 (15:47 -0800)]
iwlwifi: error checking for number of tfds in queue
When receive reply_tx and ready to decrement the count for number of
tfds in queue, do error checking to prevent error condition and
tfds_in_queue become negative number.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Masami Hiramatsu [Thu, 18 Feb 2010 18:16:52 +0000 (13:16 -0500)]
perf probe: Init struct probe_point and set counter correctly
Clear struct probe_point before using it in
show_perf_probe_events(), and set pp->found counter correctly in
synthesize_perf_probe_point(). Without this initialization,
clear_probe_point() will free random addresses.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <20100218181652.26547.57790.stgit@dhcp-100-2-132.bos.redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Roy Yin [Mon, 22 Feb 2010 06:52:49 +0000 (22:52 -0800)]
Input: usbtouchscreen - extend coordinate range for Generaltouch devices
Generaltouch protocol allows for coordinates in [0, 0xffff] range and
there are devices reporting coordinates as high as 0x7fff so let's update
the driver to reflect that.
Signed-off-by: Roy Yin <yhch@generaltouch.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Accidently changed the struct stat uid/gid members
to uid_t and gid_t, but those get set to
__kernel_uid32_t and __kernel_gid32_t respectively.
Those are of type 'int' but the structure is meant
to have 'short'. So use uid16_t and gid16_t to
correct this.
Reported-by: Rob Landley <rob@landley.net> Signed-off-by: David S. Miller <davem@davemloft.net>
H. Peter Anvin [Fri, 19 Feb 2010 00:13:40 +0000 (16:13 -0800)]
mm: Make copy_from_user() in migrate.c statically predictable
x86-32 has had a static test for copy_on_user() overflow for a while.
This test currently fails in mm/migrate.c resulting in an
allyesconfig/allmodconfig build failure on x86-32:
In function ‘copy_from_user’,
inlined from ‘do_pages_stat’ at
/home/hpa/kernel/git/mm/migrate.c:1012:
/home/hpa/kernel/git/arch/x86/include/asm/uaccess_32.h:212: error:
call to ‘copy_from_user_overflow’ declared
Make the logic more explicit and therefore easier for gcc to
understand.
v2: rewrite the loop entirely using a more normal structure for a
chunked-data loop (Linus Torvalds)
Reported-by: Len Brown <lenb@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Reviewed-and-Tested-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Arjan van de Ven <arjan@linux.kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 21 Feb 2010 00:58:03 +0000 (16:58 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
CacheFiles: Fix a race in cachefiles_delete_object() vs rename
vfs: don't call ima_file_check() unconditionally in nfsd_open()
fs: inode - remove 8 bytes of padding on 64bits allowing 1 more objects/slab under slub
Switch proc/self to nd_set_link()
fix LOOKUP_FOLLOW on automount "symlinks"
Linus Torvalds [Sun, 21 Feb 2010 00:56:09 +0000 (16:56 -0800)]
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
V4L/DVB: bttv: Move I2C IR initialization
V4L/DVB: Video : pwc : Fix regression in pwc_set_shutter_speed caused by bad constant => sizeof conversion.
soc-camera: mt9t112: modify exiting conditions from standby mode
V4L/DVB: cxusb: Select all required frontend and tuner modules
V4L/DVB: dvb: l64781.ko broken with gcc 4.5
Linus Torvalds [Sun, 21 Feb 2010 00:55:41 +0000 (16:55 -0800)]
Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
omap: Remove DEBUG_FS dependency for mux name checking
Linus Torvalds [Sun, 21 Feb 2010 00:55:05 +0000 (16:55 -0800)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: allow alignment fault mode to be configured at kernel boot
ARM: Update mach-types
ARM: 5951/1: ARM: fix documentation of the PrimeCell bus
ARM: 5950/1: ARM: Fix build error for arm1026ej-s processor
MAINTAINERS: fix my e-mail and status for Gemini and FA526
Gemini: wrong registers used to set reg_level in gpio_set_irq_type()
ARM: 5944/1: scsi: fix timer setup in fas216.c
ARM: 5938/1: ARM: L2: export outer_cache_fns
Russell King [Sat, 20 Feb 2010 16:13:29 +0000 (16:13 +0000)]
ARM: allow alignment fault mode to be configured at kernel boot
Some glibc versions intentionally create lots of alignment faults in
their gconv code, which if not fixed up, results in segfaults during
boot. This can prevent systems booting properly.
There is no clear hard-configurable default for this; the desired
default depends on the nature of the userspace which is going to be
booted.
So, provide a way for the alignment fault handler to be configured via
the kernel command line.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
David Howells [Fri, 19 Feb 2010 18:14:21 +0000 (18:14 +0000)]
CacheFiles: Fix a race in cachefiles_delete_object() vs rename
cachefiles_delete_object() can race with rename. It gets the parent directory
of the object it's asked to delete, then locks it - but rename may have changed
the object's parent between the get and the completion of the lock.
However, if such a circumstance is detected, we abandon our attempt to delete
the object - since it's no longer in the index key path, it won't be seen
again by lookups of that key. The assumption is that cachefilesd may have
culled it by renaming it to the graveyard for later destruction.
Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
ARM: 5950/1: ARM: Fix build error for arm1026ej-s processor
This patch fix the below build error for arm1026ej-s processor (IntegratorCP/arm1026ej-s board).
CC init/main.o
In file included from include/linux/highmem.h:8,
from include/linux/pagemap.h:10,
from include/linux/mempolicy.h:62,
from init/main.c:52:
arch/arm/include/asm/cacheflush.h:134:2: error: #error Unknown cache maintainence model
make[1]: *** [init/main.o] Erreur 1
make: *** [init] Erreur 2
Signed-off-by: Abdoulaye Walsimou Gaye <walsimou@walsimou.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Samu Onkalo [Sat, 20 Feb 2010 07:17:58 +0000 (23:17 -0800)]
Input: polldev can cause crash in case when polling disabled
When polled input device is opened and closed and there are no other
users of polled device, the workqueue is created and destroyed in
every open / close operation. It is probable that at some point
dynamic allocation of internal parts of the workqueue cause changes to the
workqueue.
When a work is queued to the workqueue the work struct contains pointers
to the workqueue data. If the workqueue has been changed and the work
has never been queued to the new workqueue, work-struct contains pointers
to the non-existing workqueue. This will cause crash at the work
cancellation during device close since cancellation of a work assumes
that the workqueue exists.
To prevent that, work struct is cleaned up at device close. This keeps
work struct clean for the next use.
Chuck Ebbert [Mon, 15 Feb 2010 23:07:39 +0000 (18:07 -0500)]
vfs: don't call ima_file_check() unconditionally in nfsd_open()
commit 1e41568d7378d1ba8c64ba137b9ddd00b59f893a ("Take ima_path_check()
in nfsd past dentry_open() in nfsd_open()") moved this code back to its
original location but missed the "else".
Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] megaraid_sas: fix for 32bit apps
[SCSI] fcoe: Only rmmod fcoe.ko if there are no active connections
[SCSI] libfcoe: Send port LKA every FIP_VN_KA_PERIOD secs.
[SCSI] libfc: Don't assume response request present.
[SCSI] libfc: Fix e_d_tov ns -> ms scaling factor in PLOGI response.
[SCSI] libfc: call ddp setup for only FCP reads to avoid accessing junk fsp pointer
[SCSI] iscsi_tcp regression: remove bogus warn on in write path
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
sfc: SFE4002/SFN4112F: Widen temperature and voltage tolerances
sfc: Fix sign of efx_mcdi_poll_reboot() error in efx_mcdi_poll()
net-sysfs: Use rtnl_trylock in wireless sysfs methods.
net: Fix sysctl restarts...
Linus Torvalds [Sat, 20 Feb 2010 03:33:51 +0000 (19:33 -0800)]
Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon: bump the UMS driver version number to indicate rv740 fix
drm/radeon/kms: free fence IB if it wasn't emited at IB free time
drm/ttm: fix caching problem on non-PAT systems.
drm/radeon/rv740: fix backend setup
drm/radeon/kms: fix shared ddc detection
drm/radeon/kms/rs600: add connector quirk
vgaarb: fix "target=default" passing
Ben Hutchings [Fri, 19 Feb 2010 13:34:03 +0000 (13:34 +0000)]
sfc: SFE4002/SFN4112F: Widen temperature and voltage tolerances
The temperature and voltage limits currently set on these boards are
too conservative and will cause the driver to stop the net device
erroneously in some systems.
Based on a review of the chip datasheets and advice from the designer
of these boards:
- Raise the maximum board temperatures to the specified maximum ambient
temperatures for their PHYs plus the expected temperature bias of the
board
- Raise the maximum controller temperature to 90 degrees
- Lower the minimum temperatures to 0 degrees
- Widen the voltage tolerances to at least +/- 10%
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 19 Feb 2010 13:29:27 +0000 (13:29 +0000)]
sfc: Fix sign of efx_mcdi_poll_reboot() error in efx_mcdi_poll()
efx_mcdi_poll() uses positive error numbers, matching the MCDI
protocol. It must negate the result of efx_mcdi_poll_reboot() which
returns the usual negative error numbers.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net-sysfs: Use rtnl_trylock in wireless sysfs methods.
The wireless sysfs methods like the rest of the networking sysfs
methods are removed with the rtnl_lock held and block until
the existing methods stop executing. So use rtnl_trylock
and restart_syscall so that the code continues to work.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yuck. It turns out that when we restart sysctls we were restarting
with the values already changed. Which unfortunately meant that
the second time through we thought there was no change and skipped
all kinds of work, despite the fact that there was indeed a change.
I have fixed this the simplest way possible by restoring the changed
values when we restart the sysctl write.
One of my coworkers spotted this bug when after disabling forwarding
on an interface pings were still forwarded.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
TSB I-tlb load code tries to use andcc to check the _PAGE_EXEC_4U bit,
but that's bit 12 so it gets sign extended all the way up to bit 63
and the test nearly always passes as a result.
Use sethi to fix the bug.
Signed-off-by: David S. Miller <davem@davemloft.net>
projects / ~shefty / rdma-dev.git / log