Akinobu Mita [Tue, 15 Nov 2011 22:56:34 +0000 (14:56 -0800)]
ocfs2: avoid unaligned access to dqc_bitmap
The dqc_bitmap field of struct ocfs2_local_disk_chunk is 32-bit aligned,
but not 64-bit aligned. The dqc_bitmap is accessed by ocfs2_set_bit(),
ocfs2_clear_bit(), ocfs2_test_bit(), or ocfs2_find_next_zero_bit(). These
are wrapper macros for ext2_*_bit() which need to take an unsigned long
aligned address (though some architectures are able to handle unaligned
address correctly)
So some 64bit architectures may not be able to access the dqc_bitmap
correctly.
This avoids such unaligned access by using another wrapper functions for
ext2_*_bit(). The code is taken from fs/ext4/mballoc.c which also need to
handle unaligned bitmap access.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Joel Becker <jlbec@evilplan.org>
Trond Myklebust [Thu, 1 Dec 2011 21:31:34 +0000 (16:31 -0500)]
NFSv4: Don't error if we handled it in nfs4_recovery_handle_error
If we handled an error condition, then nfs4_recovery_handle_error should
return '0' so that the state recovery thread can continue.
Also ensure that nfs4_check_lease() continues to abort if we haven't got
any credentials by having it return ENOKEY (which is not handled).
net/dccp/probe.c: In function ‘dccpprobe_init’:
net/dccp/probe.c:166:2: warning: the omitted middle operand in ?: will always be ‘true’, suggest explicit middle operand [-Wparentheses]
try_then_request_module() is built for situations where the
"existence" test is some lookup function that returns a non-NULL
object on success, and with a reference count of some kind held.
Here we're looking for a success return of zero from the jprobe
registry.
Instead of fighting the way try_then_request_module() works, simply
open code what we want to happen in a local helper function.
Signed-off-by: David S. Miller <davem@davemloft.net>
Trond Myklebust [Thu, 1 Dec 2011 19:16:17 +0000 (14:16 -0500)]
SUNRPC: Ensure we always bump the backlog queue in xprt_free_slot
Whenever we free a slot, we know that the resulting xprt->num_reqs will
be less than xprt->max_reqs, so we know that we can release at least one
backlogged rpc_task.
If we take the "try_again" goto, due to a checksum error,
the 'len' has already been truncated. So we won't compute
the same values as the original code did.
Reported-by: paul bilke <fsmail@conspiracy.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Merge branch 'for-usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus
* 'for-usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci:
Revert "xHCI: reset-on-resume quirk for NEC uPD720200"
xHCI: fix bug in xhci_clear_command_ring()
bridge: master device stuck in no-carrier state forever when in user-stp mode
When in user-stp mode, bridge master do not follow state of its slaves, so
after the following sequence of events it can stuck forever in no-carrier
state:
1) turn stp off
2) put all slaves down - master device will follow their state and also go in
no-carrier state
3) turn stp on with bridge-stp script returning 0 (go to the user-stp mode)
Now bridge master won't follow slaves' state and will never reach running
state.
This patch solves the problem by making user-stp and kernel-stp behavior
similar regarding master following slaves' states.
Signed-off-by: Vitalii Demianets <vitas@nppfactor.kiev.ua> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The commit added a reset-on-resume quirk because the NEC chipset stopped
responding to commands about 30 minutes after a system resume from
suspend. We thought it was a chipset issue, but it turns out that the
xHCI driver was zeroing out the link TRB after a successful context
restore during resume. The host controller would fall off the command
ring sometime later, causing it to not respond to new commands.
The link TRB issue has been fixed with commit 158886cd2cf4599e04f9b7e10cb767f5f39b14f1 "xHCI: fix bug in
xhci_clear_command_ring()", so revert the reset-on-resume quirk, as it's
not necessary.
Commit df711fc9962b9491af2b92bd0d21ecbfefe4e5fa was marked for stable
trees back to 2.6.37, but according to my mail, it has not made it into
Linus' tree or the stable trees yet.
Andiry Xu [Wed, 30 Nov 2011 08:37:41 +0000 (16:37 +0800)]
xHCI: fix bug in xhci_clear_command_ring()
When system enters suspend, xHCI driver clears command ring by writing zero
to all the TRBs. However, this also writes zero to the Link TRB, and the ring
is mangled. This may cause driver accesses wrong memory address and the
result is unpredicted.
When clear the command ring, keep the last Link TRB intact, only clear its
cycle bit. This should fix the "command ring full" issue reported by Oliver
Neukum.
This should be backported to stable kernels as old as 2.6.37, since the
commit 89821320 "xhci: Fix command ring replay after resume" is merged.
Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Reported-by: Oliver Neukum <oneukum@suse.de>
Eric Dumazet [Wed, 30 Nov 2011 19:00:53 +0000 (19:00 +0000)]
ipv4: use a 64bit load/store in output path
gcc compiler is smart enough to use a single load/store if we
memcpy(dptr, sptr, 8) on x86_64, regardless of
CONFIG_CC_OPTIMIZE_FOR_SIZE
In IP header, daddr immediately follows saddr, this wont change in the
future. We only need to make sure our flowi4 (saddr,daddr) fields wont
break the rule.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
powerpc: tqm8548/tqm8xx: add and update CAN device nodes
This patch enables or updates support for the CC770 and AN82527
CAN controller on the TQM8548 and TQM8xx boards.
CC: devicetree-discuss@lists.ozlabs.org CC: linuxppc-dev@ozlabs.org CC: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
can: cc770: add platform bus driver for the CC770 and AN82527
This driver works with both, static platform data and device tree
bindings. It has been tested on a TQM855L board with two AN82527
CAN controllers on the local bus.
CC: Devicetree-discuss@lists.ozlabs.org CC: linuxppc-dev@ozlabs.org CC: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
can: cc770: add legacy ISA bus driver for the CC770 and AN82527
This patch adds support for legacy Bosch CC770 and Intel AN82527 CAN
controllers on the ISA or PC-104 bus. The I/O port or memory address
and the IRQ number must be specified via module parameters:
insmod cc770_isa.ko port=0x310,0x380 irq=7,11
for ISA devices using I/O ports or:
insmod cc770_isa.ko mem=0xd1000,0xd1000 irq=7,11
for memory mapped ISA devices.
Indirect access via address and data port is supported as well:
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
can: cc770: add driver core for the Bosch CC770 and Intel AN82527
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick Kelle [Thu, 1 Dec 2011 17:54:46 +0000 (12:54 -0500)]
icplus: mdio_write(), remove unnecessary for loop
At this point the variable j is always set to 7 and the code within
the loop has to run only once anyway.
As suggested by David Miller:
"You can simply this even further since p[7] is what is used here,
and this means len is one, the inner loop therefore executes only
once, and the p[7].field value is not used (it's zero in the table)
and the write to it is completely thrown away."
Signed-off-by: Patrick Kelle <patrick.kelle81@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Axel Lin [Wed, 30 Nov 2011 22:07:18 +0000 (22:07 +0000)]
dsa: Include linux/if_ether.h to fix build error
Include linux/if_ether.h to fix below build errors:
CC arch/arm/mach-kirkwood/common.o
In file included from arch/arm/mach-kirkwood/common.c:19:
include/net/dsa.h: In function 'dsa_uses_dsa_tags':
include/net/dsa.h:192: error: 'ETH_P_DSA' undeclared (first use in this function)
include/net/dsa.h:192: error: (Each undeclared identifier is reported only once
include/net/dsa.h:192: error: for each function it appears in.)
include/net/dsa.h: In function 'dsa_uses_trailer_tags':
include/net/dsa.h:197: error: 'ETH_P_TRAILER' undeclared (first use in this function)
make[1]: *** [arch/arm/mach-kirkwood/common.o] Error 1
make: *** [arch/arm/mach-kirkwood] Error 2
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Thu, 1 Dec 2011 16:28:53 +0000 (08:28 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix meta data raid-repair merge problem
Btrfs: skip allocation attempt from empty cluster
Btrfs: skip block groups without enough space for a cluster
Btrfs: start search for new cluster at the beginning
Btrfs: reset cluster's max_size when creating bitmap
Btrfs: initialize new bitmaps' list
Btrfs: fix oops when calling statfs on readonly device
Btrfs: Don't error on resizing FS to same size
Btrfs: fix deadlock on metadata reservation when evicting a inode
Fix URL of btrfs-progs git repository in docs
btrfs scrub: handle -ENOMEM from init_ipath()
Jan Schmidt [Thu, 1 Dec 2011 14:30:36 +0000 (09:30 -0500)]
Btrfs: fix meta data raid-repair merge problem
Commit 4a54c8c16 introduced raid-repair, killing the individual
readpage_io_failed_hook entries from inode.c and disk-io.c. Commit 4bb31e92 introduced new readahead code, adding a readpage_io_failed_hook to
disk-io.c.
The raid-repair commit had logic to disable raid-repair, if
readpage_io_failed_hook is set. Thus, the readahead commit effectively
disabled raid-repair for meta data.
This commit changes the logic to always attempt raid-repair when needed and
call the readpage_io_failed_hook in case raid-repair fails. This is much
more straight forward and should have been like that from the beginning.
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net> Reported-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Mark Brown [Thu, 1 Dec 2011 13:44:25 +0000 (13:44 +0000)]
ASoC: Add platform data for WM8958/WM1811 microphone detection rates
Allow systems to override the default microphone detection rates using
platform data in case the settings are not suitable (eg, due to an
unusually noisy jack).
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Mark Brown [Thu, 1 Dec 2011 12:43:26 +0000 (12:43 +0000)]
ASoC: Ensure we reconfigure WM8958 microphone detection on rate changes
We don't need to rerun DAPM if the clock source is the same but we do
need to adjust the microphone detection rate in case we are moving from
an audio to a non-audio rate.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Mark Brown [Wed, 30 Nov 2011 20:32:05 +0000 (20:32 +0000)]
ASoC: Implement support for WM1811A jack detection
The WM1811A features an advanced low power accessory detection subsystem
which allows the device to be maintained in a very low power state while
the system is idle without sacrificing any accessory detection features.
Implement software support for this, automatically managing the power
configuration of the device depending on the detected accessory.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Mark Brown [Wed, 30 Nov 2011 10:55:14 +0000 (10:55 +0000)]
ASoC: Allow more WM8958/WM1811 button levels with default handler
The WM8958 and WM1811 support detecting a range of buttons. Allow the
user to provide platform data enabling more of these levels without
having to write a custom detection handler.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Heiko Carstens [Thu, 1 Dec 2011 12:32:42 +0000 (13:32 +0100)]
[S390] topology: increase poll frequency if change is anticipated
Increase cpu topology change poll frequency if a change is anticipated.
Otherwise a user might be a bit confused to have to wait up to a minute
in order to see a change this should be visible immediatly.
However there is no guarantee that the change will happen during the
time frame the poll frequency is increased.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Another round of cleanup for entry[64].S, in particular the program check
handler looks more reasonable now. The code size for the 31 bit kernel
has been reduced by 616 byte and by 528 byte for the 64 bit version.
Even better the code is a bit faster as well.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
projects / karo-tx-linux.git / log