Jesse Barnes [Sat, 6 Feb 2010 18:41:53 +0000 (10:41 -0800)]
drm/i915: handle FBC and self-refresh better
On 945, we need to avoid entering self-refresh if the compressor is
busy, or we may cause display FIFO underruns leading to ugly flicker.
Fixes fdo bug #24314, kernel bug #15043.
Tested-by: Alexander Lam <lambchop468@gmail.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Julien Cristau <jcristau@debian.org> (fd.o #25371)
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
Chris Wilson [Tue, 9 Feb 2010 14:14:36 +0000 (14:14 +0000)]
drm/i915: Increase fb alignment to 64k
An untiled framebuffer must be aligned to 64k. This is normally handled
by intel_pin_and_fence_fb_obj(), but the intelfb_create() likes to be
different and do the pinning itself. However, it aligns the buffer
object incorrectly for pre-i965 chipsets causing a PGTBL_ERR when it is
installed onto the output.
Fixes:
KMS error message while initializing modesetting -
render error detected: EIR: 0x10 [i915]
http://bugs.freedesktop.org/show_bug.cgi?id=22936
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
Daniel Vetter [Sun, 7 Feb 2010 15:20:18 +0000 (16:20 +0100)]
drm/i915: Update write_domains on active list after flush.
Before changing the status of a buffer with a pending write we will await
upon a new flush for that buffer. So we can take advantage of any flushes
posted whilst the buffer is active and pending processing by the GPU, by
clearing its write_domain and updating its last_rendering_seqno -- thus
saving a potential flush in deep queues and improves flushing behaviour
upon eviction for both GTT space and fences.
In order to reduce the time spent searching the active list for matching
write_domains, we move those to a separate list whose elements are
the buffers belong to the active/flushing list with pending writes.
Orignal patch by Chris Wilson <chris@chris-wilson.co.uk>, forward-ported
by me.
In addition to better performance, this also fixes a real bug. Before
this changes, i915_gem_evict_everything didn't work as advertised. When
the gpu was actually busy and processing request, the flush and subsequent
wait would not move active and dirty buffers to the inactive list, but
just to the flushing list. Which triggered the BUG_ON at the end of this
function. With the more tight dirty buffer tracking, all currently busy and
dirty buffers get moved to the inactive list by one i915_gem_flush operation.
I've left the BUG_ON I've used to prove this in there.
References:
Bug 25911 - 2.10.0 causes kernel oops and system hangs
http://bugs.freedesktop.org/show_bug.cgi?id=25911
Bug 26101 - [i915] xf86-video-intel 2.10.0 (and git) triggers kernel oops
within seconds after login
http://bugs.freedesktop.org/show_bug.cgi?id=26101
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Adam Lantos <hege@playma.org>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
Zhenyu Wang [Fri, 5 Feb 2010 01:14:17 +0000 (09:14 +0800)]
drm/i915: Rework DPLL calculation parameters for Ironlake
Got Ironlake DPLL parameter table, which reflects the hardware
optimized values. So this one trys to list DPLL parameters for
different output types, should potential fix clock issue seen
on new Arrandale CPUs.
This fixes DPLL setting failure on one 1920x1080 dual channel
LVDS for Ironlake. Test has also been made on LVDS panels with
smaller size and CRT/HDMI/DP ports for different monitors on
their all supported modes.
Update:
- Change name of double LVDS to dual LVDS.
- Fix SSC 120M reference clock to use the right range.
Cc: CSJ <changsijay@gmail.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Linus Torvalds [Wed, 10 Feb 2010 15:34:46 +0000 (07:34 -0800)]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c-tiny-usb: Fix on big-endian systems
Linus Torvalds [Wed, 10 Feb 2010 15:19:07 +0000 (07:19 -0800)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] Fix struct _lowcore layout.
[S390] qdio: prevent call trace if CHPID is offline
[S390] qdio: continue polling for buffer state ERROR
Linus Torvalds [Wed, 10 Feb 2010 15:18:15 +0000 (07:18 -0800)]
Merge branch 'kvm-updates/2.6.33' of git://git./virt/kvm/kvm
* 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: PIT: control word is write-only
kvmclock: count total_sleep_time when updating guest clock
Export the symbol of getboottime and mmonotonic_to_bootbased
Linus Torvalds [Wed, 10 Feb 2010 15:17:54 +0000 (07:17 -0800)]
Merge git://git./linux/kernel/git/hskinnemoen/avr32-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
avr32: clean up memory allocation in at32_add_device_mci
arch/avr32: Fix build failure for avr32 caused by typo
Linus Torvalds [Wed, 10 Feb 2010 15:16:58 +0000 (07:16 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Fix address masking bug in hpte_need_flush()
Linus Torvalds [Wed, 10 Feb 2010 15:16:44 +0000 (07:16 -0800)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: fix dentry hash calculation for case-insensitive mounts
[CIFS] Don't cache timestamps on utimes due to coarse granularity
[CIFS] Maximum username length check in session setup does not match
cifs: fix length calculation for converted unicode readdir names
[CIFS] Add support for TCP_NODELAY
Linus Torvalds [Wed, 10 Feb 2010 15:15:21 +0000 (07:15 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits)
drivers/net: Correct NULL test
MAINTAINERS: networking drivers - Add git net-next tree
net/sched: Fix module name in Kconfig
cxgb3: fix GRO checksum check
dst: call cond_resched() in dst_gc_task()
netfilter: nf_conntrack: fix hash resizing with namespaces
netfilter: xtables: compat out of scope fix
netfilter: nf_conntrack: restrict runtime expect hashsize modifications
netfilter: nf_conntrack: per netns nf_conntrack_cachep
netfilter: nf_conntrack: fix memory corruption with multiple namespaces
Bluetooth: Keep a copy of each HID device's report descriptor
pktgen: Fix freezing problem
igb: make certain to reassign legacy interrupt vectors after reset
irda: add missing BKL in irnet_ppp ioctl
irda: unbalanced lock_kernel in irnet_ppp
ixgbe: Fix return of invalid txq
ixgbe: Fix ixgbe_tx_map error path
netxen: protect resource cleanup by rtnl lock
netxen: fix tx timeout recovery for NX2031 chip
Bluetooth: Enter active mode before establishing a SCO link.
...
David Gibson [Mon, 8 Feb 2010 20:09:03 +0000 (20:09 +0000)]
powerpc: Fix address masking bug in hpte_need_flush()
Commit
f71dc176aa06359681c30ba6877ffccab6fba3a6 'Make
hpte_need_flush() correctly mask for multiple page sizes' introduced
bug, which is triggered when a kernel with a 64k base page size is run
on a system whose hardware does not 64k hash PTEs. In this case, we
emulate 64k pages with multiple 4k hash PTEs, however in
hpte_need_flush() we incorrectly only mask the hardware page size from
the address, instead of the logical page size. This causes things to
go wrong when we later attempt to iterate through the hardware
subpages of the logical page.
This patch corrects the error. It has been tested on pSeries bare
metal by Michael Neuling.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Linus Torvalds [Wed, 10 Feb 2010 01:01:26 +0000 (17:01 -0800)]
Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
md: fix some lockdep issues between md and sysfs.
md: fix 'degraded' calculation when starting a reshape.
NeilBrown [Tue, 9 Feb 2010 05:34:14 +0000 (16:34 +1100)]
md: fix some lockdep issues between md and sysfs.
======
This fix is related to
http://bugzilla.kernel.org/show_bug.cgi?id=15142
but does not address that exact issue.
======
sysfs does like attributes being removed while they are being accessed
(i.e. read or written) and waits for the access to complete.
As accessing some md attributes takes the same lock that is held while
removing those attributes a deadlock can occur.
This patch addresses 3 issues in md that could lead to this deadlock.
Two relate to calling flush_scheduled_work while the lock is held.
This is probably a bad idea in general and as we use schedule_work to
delete various sysfs objects it is particularly bad.
In one case flush_scheduled_work is called from md_alloc (called by
md_probe) called from do_md_run which holds the lock. This call is
only present to ensure that ->gendisk is set. However we can be sure
that gendisk is always set (though possibly we couldn't when that code
was originally written. This is because do_md_run is called in three
different contexts:
1/ from md_ioctl. This requires that md_open has succeeded, and it
fails if ->gendisk is not set.
2/ from writing a sysfs attribute. This can only happen if the
mddev has been registered in sysfs which happens in md_alloc
after ->gendisk has been set.
3/ from autorun_array which is only called by autorun_devices, which
checks for ->gendisk to be set before calling autorun_array.
So the call to md_probe in do_md_run can be removed, and the check on
->gendisk can also go.
In the other case flush_scheduled_work is being called in do_md_stop,
purportedly to wait for all md_delayed_delete calls (which delete the
component rdevs) to complete. However there really isn't any need to
wait for them - they have already been disconnected in all important
ways.
The third issue is that raid5->stop() removes some attribute names
while the lock is held. There is already some infrastructure in place
to delay attribute removal until after the lock is released (using
schedule_work). So extend that infrastructure to remove the
raid5_attrs_group.
This does not address all lockdep issues related to the sysfs
"s_active" lock. The rest can be address by splitting that lockdep
context between symlinks and non-symlinks which hopefully will happen.
Signed-off-by: NeilBrown <neilb@suse.de>
Linus Torvalds [Tue, 9 Feb 2010 19:19:06 +0000 (11:19 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: fix p9_client_destroy unconditional calling v9fs_put_trans
9p: fix memory leak in v9fs_parse_options()
9p: Fix the kernel crash on a failed mount
9p: fix option parsing
9p: Include fsync support for 9p client
net/9p: fix statsize inside twstat
net/9p: fail when user specifies a transport which we can't find
net/9p: fix virtio transport to correctly update status on connect
Marcelo Tosatti [Fri, 29 Jan 2010 19:28:41 +0000 (17:28 -0200)]
KVM: PIT: control word is write-only
PIT control word (address 0x43) is write-only, reads are undefined.
Cc: stable@kernel.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Jason Wang [Wed, 27 Jan 2010 11:13:49 +0000 (19:13 +0800)]
kvmclock: count total_sleep_time when updating guest clock
Current kvm wallclock does not consider the total_sleep_time which could cause
wrong wallclock in guest after host suspend/resume. This patch solve
this issue by counting total_sleep_time to get the correct host boot time.
Cc: stable@kernel.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Jason Wang [Wed, 27 Jan 2010 11:13:40 +0000 (19:13 +0800)]
Export the symbol of getboottime and mmonotonic_to_bootbased
Export getboottime and monotonic_to_bootbased in order to let them
could be used by following patch.
Cc: stable@kernel.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Heiko Carstens [Tue, 9 Feb 2010 08:46:09 +0000 (09:46 +0100)]
[S390] Fix struct _lowcore layout.
Offsets and sizes are wrong for 32 bit.
Got broken with
866ba284 "[S390] cleanup lowcore.h".
Reported-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Jan Glauber [Tue, 9 Feb 2010 08:46:08 +0000 (09:46 +0100)]
[S390] qdio: prevent call trace if CHPID is offline
If a CHPID is offline during a device shutdown the ccw_device_halt|clear
may fail and the qdio device stays in state STOPPED until the shutdown is
finished. If an interrupt occurs before the device is set to INACTIVE
the STOPPED state triggers a WARN_ON in the interrupt handler.
Prevent this WARN_ON by catching the STOPPED state in the interrupt
handler.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Ursula Braun [Tue, 9 Feb 2010 08:46:07 +0000 (09:46 +0100)]
[S390] qdio: continue polling for buffer state ERROR
Inbound traffic handling may hang if next buffer to check is in
state ERROR, polling is stopped and the final check for further
available inbound buffers disregards buffers in state ERROR.
This patch includes state ERROR when checking availability of
more inbound buffers.
Cc: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
David S. Miller [Tue, 9 Feb 2010 06:45:56 +0000 (22:45 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/holtmann/bluetooth-2.6
Julia Lawall [Tue, 9 Feb 2010 06:44:18 +0000 (22:44 -0800)]
drivers/net: Correct NULL test
Test the value that was just allocated rather than the previously tested one.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r@
expression *x;
expression e;
identifier l;
@@
if (x == NULL || ...) {
... when forall
return ...; }
... when != goto l;
when != x = e
when != &x
*x == NULL
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Tue, 9 Feb 2010 06:42:40 +0000 (22:42 -0800)]
MAINTAINERS: networking drivers - Add git net-next tree
During the rc period, patches that are not bugfixes
should be done using the net-next tree.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jan Luebbe [Tue, 9 Feb 2010 06:41:44 +0000 (22:41 -0800)]
net/sched: Fix module name in Kconfig
The action modules have been prefixed with 'act_', but the Kconfig
description was not changed.
Signed-off-by: Jan Luebbe <jluebbe@debian.org>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Divy Le Ray [Tue, 9 Feb 2010 06:37:24 +0000 (22:37 -0800)]
cxgb3: fix GRO checksum check
Verify the HW checksum state for frames handed to GRO processing.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
NeilBrown [Tue, 9 Feb 2010 01:31:47 +0000 (12:31 +1100)]
md: fix 'degraded' calculation when starting a reshape.
This code was written long ago when it was not possible to
reshape a degraded array. Now it is so the current level of
degraded-ness needs to be taken in to account. Also newly addded
devices should only reduce degradedness if they are deemed to be
in-sync.
In particular, if you convert a RAID5 to a RAID6, and increase the
number of devices at the same time, then the 5->6 conversion will
make the array degraded so the current code will produce a wrong
value for 'degraded' - "-1" to be precise.
If the reshape runs to completion end_reshape will calculate a correct
new value for 'degraded', but if a device fails during the reshape an
incorrect decision might be made based on the incorrect value of
"degraded".
This patch is suitable for 2.6.32-stable and if they are still open,
2.6.31-stable and 2.6.30-stable as well.
Cc: stable@kernel.org
Reported-by: Michael Evans <mjevans1983@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Linus Torvalds [Tue, 9 Feb 2010 01:08:01 +0000 (17:08 -0800)]
Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.33' of git://linux-nfs.org/~bfields/linux:
Revert "nfsd4: fix error return when pseudoroot missing"
Eric Van Hensbergen [Tue, 9 Feb 2010 00:18:34 +0000 (18:18 -0600)]
9p: fix p9_client_destroy unconditional calling v9fs_put_trans
restructure client create code to handle error cases better and
only cleanup initialized portions of the stack.
Signed-off-by: Venkateswararao Jujjuri <jvrao@us.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Linus Torvalds [Tue, 9 Feb 2010 00:05:50 +0000 (16:05 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/jlbec/ocfs2
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
ocfs2/cluster: Make o2net connect messages KERN_NOTICE
ocfs2/dlm: Fix printing of lockname
ocfs2: Fix contiguousness check in ocfs2_try_to_merge_extent_map()
ocfs2/dlm: Remove BUG_ON in dlm recovery when freeing locks of a dead node
ocfs2: Plugs race between the dc thread and an unlock ast message
ocfs2: Remove overzealous BUG_ON during blocked lock processing
ocfs2: Do not downconvert if the lock level is already compatible
ocfs2: Prevent a livelock in dlmglue
ocfs2: Fix setting of OCFS2_LOCK_BLOCKED during bast
ocfs2: Use compat_ptr in reflink_arguments.
ocfs2/dlm: Handle EAGAIN for compatibility - v2
ocfs2: Add parenthesis to wrap the check for O_DIRECT.
ocfs2: Only bug out when page size is larger than cluster size.
ocfs2: Fix memory overflow in cow_by_page.
ocfs2/dlm: Print more messages during lock migration
ocfs2/dlm: Ignore LVBs of locks in the Blocked list
ocfs2/trivial: Remove trailing whitespaces
ocfs2: fix a misleading variable name
ocfs2: Sync max_inline_data_with_xattr from tools.
ocfs2: Fix refcnt leak on ocfs2_fast_follow_link() error path
Eric Van Hensbergen [Mon, 8 Feb 2010 23:59:34 +0000 (17:59 -0600)]
9p: fix memory leak in v9fs_parse_options()
If match_strdup() fail this function exits without freeing the options string.
Signed-off-by: Venkateswararao Jujjuri <jvrao@us.ibm.com>
Sigend-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Aneesh Kumar K.V [Mon, 8 Feb 2010 11:50:32 +0000 (11:50 +0000)]
9p: Fix the kernel crash on a failed mount
The patch fix the crash repoted below
[ 15.149907] BUG: unable to handle kernel NULL pointer dereference at
00000001
[ 15.150806] IP: [<
c140b886>] p9_virtio_close+0x18/0x24
.....
....
[ 15.150806] Call Trace:
[ 15.150806] [<
c1408e78>] ? p9_client_destroy+0x3f/0x163
[ 15.150806] [<
c1409342>] ? p9_client_create+0x25f/0x270
[ 15.150806] [<
c1063b72>] ? trace_hardirqs_on+0xb/0xd
[ 15.150806] [<
c11ed4e8>] ? match_token+0x64/0x164
[ 15.150806] [<
c1175e8d>] ? v9fs_session_init+0x2f1/0x3c8
[ 15.150806] [<
c109cfc9>] ? kmem_cache_alloc+0x98/0xb8
[ 15.150806] [<
c1063b72>] ? trace_hardirqs_on+0xb/0xd
[ 15.150806] [<
c1173dd1>] ? v9fs_get_sb+0x47/0x1e8
[ 15.150806] [<
c1173dea>] ? v9fs_get_sb+0x60/0x1e8
[ 15.150806] [<
c10a2e77>] ? vfs_kern_mount+0x81/0x11a
[ 15.150806] [<
c10a2f55>] ? do_kern_mount+0x33/0xbe
[ 15.150806] [<
c10b40b9>] ? do_mount+0x654/0x6b3
[ 15.150806] [<
c1038949>] ? do_page_fault+0x0/0x284
[ 15.150806] [<
c10b28ec>] ? copy_mount_options+0x73/0xd2
[ 15.150806] [<
c10b4179>] ? sys_mount+0x61/0x94
[ 15.150806] [<
c14284e9>] ? syscall_call+0x7/0xb
....
[ 15.203562] ---[ end trace
1dd159357709eb4b ]---
[
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Eric Dumazet [Mon, 8 Feb 2010 23:00:39 +0000 (15:00 -0800)]
dst: call cond_resched() in dst_gc_task()
Kernel bugzilla #15239
On some workloads, it is quite possible to get a huge dst list to
process in dst_gc_task(), and trigger soft lockup detection.
Fix is to call cond_resched(), as we run in process context.
Reported-by: Pawel Staszewski <pstaszewski@itcare.pl>
Tested-by: Pawel Staszewski <pstaszewski@itcare.pl>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Van Hensbergen [Mon, 8 Feb 2010 22:23:23 +0000 (16:23 -0600)]
9p: fix option parsing
Options pointer is being moved before calling kfree() which seems
to cause problems. This uses a separate pointer to track and free
original allocation.
Signed-off-by: Venkateswararao Jujjuri <jvrao@us.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>w
M. Mohan Kumar [Mon, 8 Feb 2010 21:36:48 +0000 (15:36 -0600)]
9p: Include fsync support for 9p client
Implement the fsync in the client side by marking stat field values to 'don't touch' so that server may
interpret it as a request to guarantee that the contents of the associated file are committed to stable
storage before the Rwstat message is returned.
Without this patch, calling fsync on a 9p file results in "Invalid argument" error. Please check the attached
C program.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Acked-by: Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Linus Torvalds [Mon, 8 Feb 2010 21:33:31 +0000 (13:33 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Fix ondemand to not request targets outside policy limits
[CPUFREQ] Fix use after free of struct powernow_k8_data
[CPUFREQ] fix default value for ondemand governor
Sunil Mushran [Fri, 5 Feb 2010 23:41:23 +0000 (15:41 -0800)]
ocfs2/cluster: Make o2net connect messages KERN_NOTICE
Connect and disconnect messages are more than informational as they are required
during root cause analysis for failures. This patch changes them from KERN_INFO
to KERN_NOTICE.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Acked-by: Mark Faseh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Sunil Mushran [Sat, 6 Feb 2010 01:55:56 +0000 (17:55 -0800)]
ocfs2/dlm: Fix printing of lockname
The debug call printing the name of the lock resource was chopping
off the last character. This patch fixes the problem.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Acked-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
J. Bruce Fields [Mon, 8 Feb 2010 18:42:26 +0000 (13:42 -0500)]
Revert "nfsd4: fix error return when pseudoroot missing"
Commit
f39bde24b275ddc45d fixed the error return from PUTROOTFH in the
case where there is no pseudofilesystem.
This is really a case we shouldn't hit on a correctly configured server:
in the absence of a root filehandle, there's no point accepting version
4 NFS rpc calls at all.
But the shared responsibility between kernel and userspace here means
the kernel on its own can't eliminate the possiblity of this happening.
And we have indeed gotten this wrong in distro's, so new client-side
mount code that attempts to negotiate v4 by default first has to work
around this case.
Therefore when commit
f39bde24b275ddc45d arrived at roughly the same
time as the new v4-default mount code, which explicitly checked only for
the previous error, the result was previously fine mounts suddenly
failing.
We'll fix both sides for now: revert the error change, and make the
client-side mount workaround more robust.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Eric Van Hensbergen [Sat, 16 Jan 2010 01:01:56 +0000 (19:01 -0600)]
net/9p: fix statsize inside twstat
stat structures contain a size prefix. In our twstat messages
we were including the size of the size prefix in the prefix, which is not
what the protocol wants, and Inferno servers would complain.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Eric Van Hensbergen [Sat, 16 Jan 2010 01:01:10 +0000 (19:01 -0600)]
net/9p: fail when user specifies a transport which we can't find
If the user specifies a transport and we can't find it, we failed back
to the default trainsport silently. This patch will make the code
complain more loudly and return an error code.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Eric Van Hensbergen [Sat, 16 Jan 2010 00:54:03 +0000 (18:54 -0600)]
net/9p: fix virtio transport to correctly update status on connect
The 9p virtio transport was not updating its connection status correctly
preventing it from being able to mount the server.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Patrick McHardy [Mon, 8 Feb 2010 19:18:07 +0000 (11:18 -0800)]
netfilter: nf_conntrack: fix hash resizing with namespaces
As noticed by Jon Masters <jonathan@jonmasters.org>, the conntrack hash
size is global and not per namespace, but modifiable at runtime through
/sys/module/nf_conntrack/hashsize. Changing the hash size will only
resize the hash in the current namespace however, so other namespaces
will use an invalid hash size. This can cause crashes when enlarging
the hashsize, or false negative lookups when shrinking it.
Move the hash size into the per-namespace data and only use the global
hash size to initialize the per-namespace value when instanciating a
new namespace. Additionally restrict hash resizing to init_net for
now as other namespaces are not handled currently.
Cc: stable@kernel.org
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Dobriyan [Mon, 8 Feb 2010 19:17:43 +0000 (11:17 -0800)]
netfilter: xtables: compat out of scope fix
As per C99 6.2.4(2) when temporary table data goes out of scope,
the behaviour is undefined:
if (compat) {
struct foo tmp;
...
private = &tmp;
}
[dereference private]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Patrick McHardy <kaber@trash.net>
Alexey Dobriyan [Mon, 8 Feb 2010 19:17:22 +0000 (11:17 -0800)]
netfilter: nf_conntrack: restrict runtime expect hashsize modifications
Expectation hashtable size was simply glued to a variable with no code
to rehash expectations, so it was a bug to allow writing to it.
Make "expect_hashsize" readonly.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Patrick McHardy <kaber@trash.net>
Eric Dumazet [Mon, 8 Feb 2010 19:16:56 +0000 (11:16 -0800)]
netfilter: nf_conntrack: per netns nf_conntrack_cachep
nf_conntrack_cachep is currently shared by all netns instances, but
because of SLAB_DESTROY_BY_RCU special semantics, this is wrong.
If we use a shared slab cache, one object can instantly flight between
one hash table (netns ONE) to another one (netns TWO), and concurrent
reader (doing a lookup in netns ONE, 'finding' an object of netns TWO)
can be fooled without notice, because no RCU grace period has to be
observed between object freeing and its reuse.
We dont have this problem with UDP/TCP slab caches because TCP/UDP
hashtables are global to the machine (and each object has a pointer to
its netns).
If we use per netns conntrack hash tables, we also *must* use per netns
conntrack slab caches, to guarantee an object can not escape from one
namespace to another one.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
[Patrick: added unique slab name allocation]
Cc: stable@kernel.org
Signed-off-by: Patrick McHardy <kaber@trash.net>
Patrick McHardy [Mon, 8 Feb 2010 19:16:26 +0000 (11:16 -0800)]
netfilter: nf_conntrack: fix memory corruption with multiple namespaces
As discovered by Jon Masters <jonathan@jonmasters.org>, the "untracked"
conntrack, which is located in the data section, might be accidentally
freed when a new namespace is instantiated while the untracked conntrack
is attached to a skb because the reference count it re-initialized.
The best fix would be to use a seperate untracked conntrack per
namespace since it includes a namespace pointer. Unfortunately this is
not possible without larger changes since the namespace is not easily
available everywhere we need it. For now move the untracked conntrack
initialization to the init_net setup function to make sure the reference
count is not re-initialized and handle cleanup in the init_net cleanup
function to make sure namespaces can exit properly while the untracked
conntrack is in use in other namespaces.
Cc: stable@kernel.org
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 8 Feb 2010 19:07:10 +0000 (11:07 -0800)]
Merge branch 'v4l_for_linus' of git://linuxtv.org/fixes
* 'v4l_for_linus' of git://linuxtv.org/fixes:
V4L/DVB: dvb-core: fix initialization of feeds list in demux filter
V4L/DVB: dvb_demux: Don't use vmalloc at dvb_dmx_swfilter_packet
V4L/DVB: Fix the risk of an oops at dvb_dmx_release
Linus Torvalds [Mon, 8 Feb 2010 18:10:36 +0000 (10:10 -0800)]
Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Invalidate dcache before enabling it
Linus Torvalds [Mon, 8 Feb 2010 18:10:18 +0000 (10:10 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/pseries: Fix kexec regression caused by CPPR tracking
Linus Torvalds [Mon, 8 Feb 2010 18:09:55 +0000 (10:09 -0800)]
Merge branch 'sh/for-2.6.33' of git://git./linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Remove superfluous setup_frame_reg call
sh: Don't continue unwinding across interrupts
sh: Setup frame pointer in handle_exception path
sh: Correct the offset of the return address in ret_from_exception
usb: r8a66597-hcd: Fix up spinlock recursion in root hub polling.
usb: r8a66597-hcd: Flush the D-cache for the pipe-in transfer buffers.
Jeff Layton [Fri, 5 Feb 2010 18:30:36 +0000 (13:30 -0500)]
cifs: fix dentry hash calculation for case-insensitive mounts
case-insensitive mounts shouldn't use full_name_hash(). Make sure we
use the parent dentry's d_hash routine when one is set.
Reported-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Steve French [Mon, 8 Feb 2010 17:39:58 +0000 (17:39 +0000)]
[CIFS] Don't cache timestamps on utimes due to coarse granularity
force revalidate of the file when any of the timestamps are set since
some filesytem types do not have finer granularity timestamps and
we can not always detect which file systems round timestamps down
to determine whether we can cache the mtime on setattr
samba bugzilla 3775
Acked-by: Shirish Pargaonkar <sharishp@us.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Francesco Lavra [Sun, 7 Feb 2010 12:49:58 +0000 (09:49 -0300)]
V4L/DVB: dvb-core: fix initialization of feeds list in demux filter
A DVB demultiplexer device can be used to set up either a PES filter or
a section filter. In the former case, the ts field of the feed union of
struct dmxdev_filter is used, in the latter case the sec field of the
same union is used.
The ts field is a struct list_head, and is currently initialized in the
open() method of the demux device. When for a given demuxer a section
filter is set up, the sec field is played with, thus if a PES filter
needs to be set up after that the ts field will be corrupted, causing a
kernel oops.
This fix moves the list head initialization to
dvb_dmxdev_pes_filter_set(), so that the ts field is properly
initialized every time a PES filter is set up.
Signed-off-by: Francesco Lavra <francescolavra@interfree.it>
Cc: stable <stable@kernel.org>
Reviewed-by: Andy Walls <awalls@radix.net>
Tested-by: hermann pitton <hermann-pitton@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Mon, 1 Feb 2010 14:50:42 +0000 (11:50 -0300)]
V4L/DVB: dvb_demux: Don't use vmalloc at dvb_dmx_swfilter_packet
As dvb_dmx_swfilter_packet() is protected by a spinlock, it shouldn't sleep.
However, vmalloc() may call sleep. So, move the initialization of
dvb_demux::cnt_storage field to a better place.
Reviewed-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Mon, 1 Feb 2010 13:35:22 +0000 (10:35 -0300)]
V4L/DVB: Fix the risk of an oops at dvb_dmx_release
dvb_dmx_init tries to allocate virtual memory for 2 pointers: filter and feed.
If the second vmalloc fails, filter is freed, but the pointer keeps pointing
to the old place. Later, when dvb_dmx_release() is called, it will try to
free an already freed memory, causing an OOPS.
Reviewed-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Michal Simek [Mon, 1 Feb 2010 11:15:58 +0000 (12:15 +0100)]
microblaze: Invalidate dcache before enabling it
We found that on write-trough kernel is necessary to do that invalidation.
One WB is possible to use invalidation too.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Mark Nelson [Sun, 7 Feb 2010 16:45:12 +0000 (16:45 +0000)]
powerpc/pseries: Fix kexec regression caused by CPPR tracking
The code to track the CPPR values added by commit
49bd3647134ea47420067aea8d1401e722bf2aac ("powerpc/pseries: Track previous
CPPR values to correctly EOI interrupts") broke kexec on pseries because
the kexec code in xics.c calls xics_set_cpu_priority() before the IPI has
been EOI'ed. This wasn't a problem previously but it now triggers a BUG_ON
in xics_set_cpu_priority() because os_cppr->index isn't 0.
Fix this problem by setting the index on the CPPR stack to 0 before calling
xics_set_cpu_priority() in xics_teardown_cpu().
Also make it clear that we only want to set the priority when there's just
one CPPR value in the stack, and enforce it by updating the value of
os_cppr->stack[0] rather than os_cppr->stack[os_cppr->index].
While we're at it change the BUG_ON to a WARN_ON.
Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Matt Fleming [Sat, 30 Jan 2010 17:37:25 +0000 (17:37 +0000)]
sh: Remove superfluous setup_frame_reg call
There's no need to setup the frame pointer again in
call_handle_tlbmiss. The frame pointer will already have been setup in
handle_interrupt.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Matt Fleming [Sat, 30 Jan 2010 17:36:20 +0000 (17:36 +0000)]
sh: Don't continue unwinding across interrupts
Unfortunately, due to poor DWARF info in current toolchains, unwinding
through interrutps cannot be done reliably. The problem is that the
DWARF info for function epilogues is wrong.
Take this standard epilogue sequence,
80003cc4: e3 6f mov r14,r15
80003cc6: 26 4f lds.l @r15+,pr
80003cc8: f6 6e mov.l @r15+,r14
<---- interrupt here
80003cca: f6 6b mov.l @r15+,r11
80003ccc: f6 6a mov.l @r15+,r10
80003cce: f6 69 mov.l @r15+,r9
80003cd0: 0b 00 rts
If we take an interrupt at the highlighted point, the DWARF info will
bogusly claim that the return address can be found at some offset from
the frame pointer, even though the frame pointer was just restored. The
worst part is if the unwinder finds a text address at the bogus stack
address - unwinding will continue, for a bit, until it finally comes
across an unexpected address on the stack and blows up.
The only solution is to stop unwinding once we've calculated the
function that was executing when the interrupt occurred. This PC can be
easily calculated from pt_regs->pc.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Matt Fleming [Wed, 27 Jan 2010 20:44:59 +0000 (20:44 +0000)]
sh: Setup frame pointer in handle_exception path
In order to allow the DWARF unwinder to unwind through exceptions we
need to setup the frame pointer register (r14).
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Matt Fleming [Wed, 27 Jan 2010 20:05:20 +0000 (20:05 +0000)]
sh: Correct the offset of the return address in ret_from_exception
The address that ret_from_exception and ret_from_irq will return to is
found in the stack slot for SPC, not PR. This error was causing the
DWARF unwinder to pick up the wrong return address on the stack and then
unwind using the unwind tables for the wrong function.
While I'm here I might as well add CFI annotations for the other
registers since they could be useful when unwinding.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Linus Torvalds [Sun, 7 Feb 2010 19:18:28 +0000 (11:18 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
Take ima_file_free() to proper place.
ima: rename PATH_CHECK to FILE_CHECK
ima: rename ima_path_check to ima_file_check
ima: initialize ima before inodes can be allocated
fix ima breakage
Take ima_path_check() in nfsd past dentry_open() in nfsd_open()
freeze_bdev: don't deactivate successfully frozen MS_RDONLY sb
befs: fix leak
Linus Torvalds [Sun, 7 Feb 2010 18:11:23 +0000 (10:11 -0800)]
Fix race in tty_fasync() properly
This reverts commit
703625118069 ("tty: fix race in tty_fasync") and
commit
b04da8bfdfbb ("fnctl: f_modown should call write_lock_irqsave/
restore") that tried to fix up some of the fallout but was incomplete.
It turns out that we really cannot hold 'tty->ctrl_lock' over calling
__f_setown, because not only did that cause problems with interrupt
disables (which the second commit fixed), it also causes a potential
ABBA deadlock due to lock ordering.
Thanks to Tetsuo Handa for following up on the issue, and running
lockdep to show the problem. It goes roughly like this:
- f_getown gets filp->f_owner.lock for reading without interrupts
disabled, so an interrupt that happens while that lock is held can
cause a lockdep chain from f_owner.lock -> sighand->siglock.
- at the same time, the tty->ctrl_lock -> f_owner.lock chain that
commit
703625118069 introduced, together with the pre-existing
sighand->siglock -> tty->ctrl_lock chain means that we have a lock
dependency the other way too.
So instead of extending tty->ctrl_lock over the whole __f_setown() call,
we now just take a reference to the 'pid' structure while holding the
lock, and then release it after having done the __f_setown. That still
guarantees that 'struct pid' won't go away from under us, which is all
we really ever needed.
Reported-and-tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Américo Wang <xiyou.wangcong@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Al Viro [Sun, 7 Feb 2010 08:07:29 +0000 (03:07 -0500)]
Take ima_file_free() to proper place.
Hooks: Just Say No.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Mimi Zohar [Tue, 26 Jan 2010 22:02:41 +0000 (17:02 -0500)]
ima: rename PATH_CHECK to FILE_CHECK
With the movement of the ima hooks functions were renamed from *path* to
*file* since they always deal with struct file. This patch renames some of
the ima internal flags to make them consistent with the rest of the code.
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Mimi Zohar [Tue, 26 Jan 2010 22:02:40 +0000 (17:02 -0500)]
ima: rename ima_path_check to ima_file_check
ima_path_check actually deals with files! call it ima_file_check instead.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Eric Paris [Wed, 9 Dec 2009 20:29:01 +0000 (15:29 -0500)]
ima: initialize ima before inodes can be allocated
ima wants to create an inode information struct (iint) when inodes are
allocated. This means that at least the part of ima which does this
allocation (the allocation is filled with information later) should
before any inodes are created. To accomplish this we split the ima
initialization routine placing the kmem cache allocator inside a
security_initcall() function. Since this makes use of radix trees we also
need to make sure that is initialized before security_initcall().
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Mimi Zohar [Wed, 20 Jan 2010 20:35:41 +0000 (15:35 -0500)]
fix ima breakage
The "Untangling ima mess, part 2 with counters" patch messed
up the counters. Based on conversations with Al Viro, this patch
streamlines ima_path_check() by removing the counter maintaince.
The counters are now updated independently, from measuring the file,
in __dentry_open() and alloc_file() by calling ima_counts_get().
ima_path_check() is called from nfsd and do_filp_open().
It also did not measure all files that should have been measured.
Reason: ima_path_check() got bogus value passed as mask.
[AV: mea culpa]
[AV: add missing nfsd bits]
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Tue, 26 Jan 2010 10:43:08 +0000 (05:43 -0500)]
Take ima_path_check() in nfsd past dentry_open() in nfsd_open()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jun'ichi Nomura [Fri, 29 Jan 2010 00:56:22 +0000 (09:56 +0900)]
freeze_bdev: don't deactivate successfully frozen MS_RDONLY sb
Thanks Thomas and Christoph for testing and review.
I removed 'smp_wmb()' before up_write from the previous patch,
since up_write() should have necessary ordering constraints.
(I.e. the change of s_frozen is visible to others after up_write)
I'm quite sure the change is harmless but if you are uncomfortable
with Tested-by/Reviewed-by on the modified patch, please remove them.
If MS_RDONLY, freeze_bdev should just up_write(s_umount) instead of
deactivate_locked_super().
Also, keep sb->s_frozen consistent so that remount can check the frozen state.
Otherwise a crash reported here can happen:
http://lkml.org/lkml/2010/1/16/37
http://lkml.org/lkml/2010/1/28/53
This patch should be applied for 2.6.32 stable series, too.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Thomas Backlund <tmb@mandriva.org>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: stable@kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 29 Jan 2010 03:11:38 +0000 (22:11 -0500)]
befs: fix leak
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Sat, 6 Feb 2010 22:17:12 +0000 (14:17 -0800)]
Linux 2.6.33-rc7
Linus Torvalds [Sat, 6 Feb 2010 21:02:31 +0000 (13:02 -0800)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (w83781d) Request I/O ports individually for probing
hwmon: (lm78) Request I/O ports individually for probing
hwmon: (adt7462) Wrong ADT7462_VOLT_COUNT
Linus Torvalds [Sat, 6 Feb 2010 21:01:39 +0000 (13:01 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/anholt/drm-intel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
drm/i915: Fix leak of relocs along do_execbuffer error path
drm/i915: slow acpi_lid_open() causes flickering - V2
drm/i915: Disable SR when more than one pipe is enabled
drm/i915: page flip support for Ironlake
drm/i915: Fix the incorrect DMI string for Samsung SX20S laptop
drm/i915: Add support for SDVO composite TV
drm/i915: don't trigger ironlake vblank interrupt at irq install
drm/i915: handle non-flip pending case when unpinning the scanout buffer
drm/i915: Fix the device info of Pineview
drm/i915: enable vblank interrupt on ironlake
drm/i915: Prevent use of uninitialized pointers along error path.
drm/i915: disable hotplug detect before Ironlake CRT detect
Linus Torvalds [Sat, 6 Feb 2010 00:16:50 +0000 (16:16 -0800)]
Fix potential crash with sys_move_pages
We incorrectly depended on the 'node_state/node_isset()' functions
testing the node range, rather than checking it explicitly. That's not
reliable, even if it might often happen to work. So do the proper
explicit test.
Reported-by: Marcus Meissner <meissner@suse.de>
Acked-and-tested-by: Brice Goglin <Brice.Goglin@inria.fr>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Steve French [Sat, 6 Feb 2010 07:08:53 +0000 (07:08 +0000)]
[CIFS] Maximum username length check in session setup does not match
Fix length check reported by D. Binderman (see below)
d binderman <dcb314@hotmail.com> wrote:
>
> I just ran the sourceforge tool cppcheck over the source code of the
> new Linux kernel 2.6.33-rc6
>
> It said
>
> [./cifs/sess.c:250]: (error) Buffer access out-of-bounds
May turn out to be harmless, but best to be safe. Note max
username length is defined to 32 due to Linux (Windows
maximum is 20).
Signed-off-by: Steve French <sfrench@us.ibm.com>
Jeff Layton [Fri, 5 Feb 2010 18:14:00 +0000 (13:14 -0500)]
cifs: fix length calculation for converted unicode readdir names
cifs_from_ucs2 returns the length of the converted name, including the
length of the NULL terminator. We don't want to include the NULL
terminator in the dentry name length however since that'll throw off the
hash calculation for the dentry cache.
I believe that this is the root cause of several problems that have
cropped up recently that seem to be papered over with the "noserverino"
mount option. More confirmation of that would be good, but this is
clearly a bug and it fixes at least one reproducible problem that
was reported.
This patch fixes at least this reproducer in this kernel.org bug:
http://bugzilla.kernel.org/show_bug.cgi?id=15088#c12
Reported-by: Bjorn Tore Sund <bjorn.sund@it.uib.no>
Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Steve French <sfrench@us.ibm.com>
Roel Kluin [Fri, 5 Feb 2010 09:26:27 +0000 (10:26 +0100)]
ocfs2: Fix contiguousness check in ocfs2_try_to_merge_extent_map()
The wrong member was compared in the continguousness check.
Acked-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Linus Torvalds [Fri, 5 Feb 2010 19:11:34 +0000 (11:11 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ASoC: pandora: Add APLL supply to fix audio output
ALSA: ice1724 - aureon - fix wm8770 volume offset
ALSA: cosmetic: make hda intel interrupt name consistent with others
ALSA: hda - Delay switching to polling mode if an interrupt was missing
ALSA: ctxfi - fix PTP address initialization
Jean Delvare [Fri, 5 Feb 2010 18:58:36 +0000 (19:58 +0100)]
hwmon: (w83781d) Request I/O ports individually for probing
Different motherboards have different PNP declarations for
W83781D/W83782D chips. Some declare the whole range of I/O ports (8
ports), some declare only the useful ports (2 ports at offset 5) and
some declare fancy ranges, for example 4 ports at offset 4. To
properly handle all cases, request all ports individually for probing.
After we have determined that we really have a W83781D or W83782D
chip, the useful port range will be requested again, as a single
block.
I did not see a board which needs this yet, but I know of one for lm78
driver and I'd like to keep the logic of these two drivers in sync.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
Jean Delvare [Fri, 5 Feb 2010 18:58:36 +0000 (19:58 +0100)]
hwmon: (lm78) Request I/O ports individually for probing
Different motherboards have different PNP declarations for LM78/LM79
chips. Some declare the whole range of I/O ports (8 ports), some
declare only the useful ports (2 ports at offset 5) and some declare
fancy ranges, for example 4 ports at offset 4. To properly handle all
cases, request all ports individually for probing. After we have
determined that we really have an LM78 or LM79 chip, the useful port
range will be requested again, as a single block.
This fixes the driver on the Olivetti M3000 DT 540, at least.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
Ray Copeland [Fri, 5 Feb 2010 18:58:35 +0000 (19:58 +0100)]
hwmon: (adt7462) Wrong ADT7462_VOLT_COUNT
The #define ADT7462_VOLT_COUNT is wrong, it should be 13 not 12. All the
for loops that use this as a limit count are of the typical form, "for
(n = 0; n < ADT7462_VOLT_COUNT; n++)", so to loop through all voltages
w/o missing the last one it is necessary for the count to be one greater
than it is. (Specifically, you will miss the +1.5V 3GPIO input with count
= 12 vs. 13.)
Signed-off-by: Ray Copeland <ray.copeland@aprius.com>
Acked-by: "Darrick J. Wong" <djwong@us.ibm.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
Takashi Iwai [Fri, 5 Feb 2010 18:57:23 +0000 (19:57 +0100)]
Merge remote branch 'alsa/fixes' into for-linus
Takashi Iwai [Fri, 5 Feb 2010 18:57:16 +0000 (19:57 +0100)]
Merge branch 'fix/asoc' into for-linus
Takashi Iwai [Fri, 5 Feb 2010 18:56:55 +0000 (19:56 +0100)]
Merge branch 'fix/hda' into for-linus
Michael Poole [Fri, 5 Feb 2010 17:23:43 +0000 (12:23 -0500)]
Bluetooth: Keep a copy of each HID device's report descriptor
The report descriptor is read by user space (via the Service
Discovery Protocol), so it is only available during the ioctl
to connect. However, the HID probe function that needs the
descriptor might not be called until a specific module is
loaded. Keep a copy of the descriptor so it is available for
later use.
Signed-off-by: Michael Poole <mdpoole@troilus.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Jean Delvare [Fri, 5 Feb 2010 16:48:13 +0000 (17:48 +0100)]
i2c-tiny-usb: Fix on big-endian systems
The functionality bit vector is always returned as a little-endian
32-bit number by the device, so it must be byte-swapped to the host
endianness.
On the other hand, the delay value is handled by the USB stack, so no
byte swapping is needed on our side.
This fixes bug #15105:
http://bugzilla.kernel.org/show_bug.cgi?id=15105
Reported-by: Jens Richter <jens@richter-stutensee.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Jens Richter <jens@richter-stutensee.de>
Cc: Till Harbaum <till@harbaum.org>
Cc: stable@kernel.org
Linus Torvalds [Fri, 5 Feb 2010 15:58:21 +0000 (07:58 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[libata] Call flush_dcache_page after PIO data transfers in libata-sff.c
ahci: add Acer G725 to broken suspend list
libata: fix ata_id_logical_per_physical_sectors
libata-scsi passthru: fix bug which truncated LBA48 return values
Andres Salomon [Fri, 5 Feb 2010 06:42:43 +0000 (01:42 -0500)]
CS5536: apply pci quirk for BIOS SMBUS bug
The new cs5535-* drivers use PCI header config info rather than MSRs to
determine the memory region to use for things like GPIOs and MFGPTs. As
anticipated, we've run into a buggy BIOS:
[ 0.081818] pci 0000:00:14.0: reg 10: [io 0x6000-0x7fff]
[ 0.081906] pci 0000:00:14.0: reg 14: [io 0x6100-0x61ff]
[ 0.082015] pci 0000:00:14.0: reg 18: [io 0x6200-0x63ff]
[ 0.082917] pci 0000:00:14.2: reg 20: [io 0xe000-0xe00f]
[ 0.083551] pci 0000:00:15.0: reg 10: [mem 0xa0010000-0xa0010fff]
[ 0.084436] pci 0000:00:15.1: reg 10: [mem 0xa0011000-0xa0011fff]
[ 0.088816] PCI: pci_cache_line_size set to 32 bytes
[ 0.088938] pci 0000:00:14.0: address space collision: [io 0x6100-0x61ff] already in use
[ 0.089052] pci 0000:00:14.0: can't reserve [io 0x6100-0x61ff]
This is a Soekris board, and its BIOS sets the size of the PCI ISA bridge
device's BAR0 to 8k. In reality, it should be 8 bytes (BAR0 is used for
SMBus stuff). This quirk checks for an incorrect size, and resets it
accordingly.
Signed-off-by: Andres Salomon <dilinger@collabora.co.uk>
Tested-by: Leigh Porter <leigh@leighporter.org>
Tested-by: Jens Rottmann <JRottmann@LiPPERTEmbedded.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stephen Rothwell [Fri, 5 Feb 2010 05:09:11 +0000 (16:09 +1100)]
percpu: add __percpu for sparse
This is to make the annotation of percpu variables during the next merge
window less painfull.
Extracted from a patch by Rusty Russell.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 5 Feb 2010 15:24:01 +0000 (07:24 -0800)]
Merge branch 'drm-linus' of git://git./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/kms: fix r300 vram width calculations
drm/radeon/kms: rs400/480 MC setup is different than r300.
drm/radeon/kms: make initial state of load detect property correct.
drm/radeon/kms: disable HDMI audio for now on rv710/rv730
drm/radeon/kms: don't call suspend path before cleaning up GPU
drivers/gpu/drm/radeon/radeon_combios.c: fix warning
ati_pcigart: fix printk format warning
drm/r100/kms: Emit cache flush to the end of command buffer. (v2)
drm/radeon/kms: fix regression rendering issue on R6XX/R7XX
drm/radeon/kms: move blit initialization after we disabled VGA
Linus Torvalds [Fri, 5 Feb 2010 15:23:03 +0000 (07:23 -0800)]
Merge git://git./linux/kernel/git/mason/btrfs-unstable
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: apply updated fallocate i_size fix
Btrfs: do not try and lookup the file extent when finishing ordered io
Btrfs: Fix oopsen when dropping empty tree.
Btrfs: remove BUG_ON() due to mounting bad filesystem
Btrfs: make error return negative in btrfs_sync_file()
Btrfs: fix race between allocate and release extent buffer.
Grazvydas Ignotas [Thu, 4 Feb 2010 22:55:33 +0000 (00:55 +0200)]
ASoC: pandora: Add APLL supply to fix audio output
Pandora's external DAC is using 256*Fs output from the TWL4030
codec, and TWL4030 needs to have APLL enabled for it's 256*Fs
output to function.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Jaroslav Kysela [Fri, 5 Feb 2010 09:19:41 +0000 (10:19 +0100)]
ALSA: ice1724 - aureon - fix wm8770 volume offset
The volume register is from 0..0x7f and 0..0x1a range is mute.
Also, fix mute combining in wm_vol_put(). The wrong behaviour was
noticed by Peter Christensen.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Maxim Levitsky [Thu, 4 Feb 2010 20:26:37 +0000 (22:26 +0200)]
ALSA: cosmetic: make hda intel interrupt name consistent with others
This renames the interrupt name in /proc/interrupt.
HDA Intel -> hda_intel
This also eliminates space from the name, probably helping some
parsers.
Don't think anybody depends on this name in userspace
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Maxim Levitsky [Thu, 4 Feb 2010 20:21:47 +0000 (22:21 +0200)]
ALSA: hda - Delay switching to polling mode if an interrupt was missing
My sound codec seems sometimes (very rarely) to omit interrupts (ALC268)
However, interrupt mode still works.
Thus if we get timeout, poll the codec once.
If we get 3 such polls in a row, then switch to polling mode.
This patch is maybe an bandaid, but this might be a workaround for hardware bug.
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Dave Airlie [Fri, 5 Feb 2010 03:57:03 +0000 (13:57 +1000)]
drm/radeon/kms: fix r300 vram width calculations
This was incorrect according to the docs and the UMS driver does
it like this.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 5 Feb 2010 03:41:54 +0000 (13:41 +1000)]
drm/radeon/kms: rs400/480 MC setup is different than r300.
Boot testing on my rs480 laptop found the MC idle never happened
on startup, a quick check with AMD found the idle bit is in a different
place on the rs4xx than r300.
Implement a new rs400 mc idle function to fix this.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Paul Mundt [Thu, 4 Feb 2010 06:58:28 +0000 (06:58 +0000)]
usb: r8a66597-hcd: Fix up spinlock recursion in root hub polling.
The current root hub polling code exhibits a spinlock recursion on the
private controller lock. r8a66597_root_hub_control() is called from
r8a66597_timer() which grabs the lock and disables IRQs. The following
chain emerges:
r8a66597_timer() <-- lock taken
r8a66597_root_hub_control()
r8a66597_check_syssts()
usb_hcd_poll_rh_status() <-- acquires the same lock
/* insert death here */
The entire chain requires IRQs to be disabled, so we just unlock and
relock around the call to usb_hcd_poll_rh_status() while leaving the
IRQ state unchanged.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>