Dave Chinner [Mon, 11 Jan 2010 11:47:45 +0000 (11:47 +0000)]
xfs: Reference count per-ag structures
Reference count the per-ag structures to ensure that we keep get/put
pairs balanced. Assert that the reference counts are zero at unmount
time to catch leaks. In future, reference counts will enable us to
safely remove perag structures by allowing us to detect when they
are no longer in use.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Mon, 11 Jan 2010 11:47:44 +0000 (11:47 +0000)]
xfs: Replace per-ag array with a radix tree
The use of an array for the per-ag structures requires reallocation
of the array when growing the filesystem. This requires locking
access to the array to avoid use after free situations, and the
locking is difficult to get right. To avoid needing to reallocate an
array, change the per-ag structures to an allocated object per ag
and index them using a tree structure.
The AGs are always densely indexed (hence the use of an array), but
the number supported is 2^32 and lookups tend to be random and hence
indexing needs to scale. A simple choice is a radix tree - it works
well with this sort of index. This change also removes another
large contiguous allocation from the mount/growfs path in XFS.
The growing process now needs to change to only initialise the new
AGs required for the extra space, and as such only needs to
exclusively lock the tree for inserts. The rest of the code only
needs to lock the tree while doing lookups, and hence this will
remove all the deadlocks that currently occur on the m_perag_lock as
it is now an innermost lock. The lock is also changed to a spinlock
from a read/write lock as the hold time is now extremely short.
To complete the picture, the per-ag structures will need to be
reference counted to ensure that we don't free/modify them while
they are still in use. This will be done in subsequent patch.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Mon, 11 Jan 2010 11:47:43 +0000 (11:47 +0000)]
xfs: convert remaining direct references to m_perag
Convert the remaining direct lookups of the per ag structures to use
get/put accesses. Ensure that the loops across AGs and prior users
of the interface balance gets and puts correctly.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Mon, 11 Jan 2010 11:47:42 +0000 (11:47 +0000)]
xfs: Convert filestreams code to use per-ag get/put routines
Use xfs_perag_get() and xfs_perag_put() in the filestreams code.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Mon, 11 Jan 2010 11:47:41 +0000 (11:47 +0000)]
xfs: Don't directly reference m_perag in allocation code
Start abstracting the perag references so that the indexing of the
structures is not directly coded into all the places that uses the
perag structures. This will allow us to separate the use of the
perag structure and the way it is indexed and hence avoid the known
deadlocks related to growing a busy filesystem.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Mon, 11 Jan 2010 11:47:40 +0000 (11:47 +0000)]
xfs: rename xfs_get_perag
xfs_get_perag is really getting the perag that an inode belongs to
based on it's inode number. Convert the use of this function to just
get the perag from a provided ag number. Use this new function to
obtain the per-ag structure when traversing the per AG inode trees
for sync and reclaim.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Mon, 11 Jan 2010 11:49:59 +0000 (11:49 +0000)]
xfs: Don't wake xfsbufd when idle
The xfsbufd wakes every xfsbufd_centisecs (once per second by
default) for each filesystem even when the filesystem is idle. If
the xfsbufd has nothing to do, put it into a long term sleep and
only wake it up when there is work pending (i.e. dirty buffers to
flush soon). This will make laptop power misers happy.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Mon, 11 Jan 2010 11:49:58 +0000 (11:49 +0000)]
xfs: Don't wake the aild once per second
Now that the AIL push algorithm is traversal safe, we don't need a
watchdog function in the xfsaild to catch pushes that fail to make
progress. Remove the watchdog timeout and make pushes purely driven
by demand. This will remove the once-per-second wakeup that is seen
when the filesystem is idle and make laptop power misers happy.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Mon, 11 Jan 2010 11:49:57 +0000 (11:49 +0000)]
xfs: Use list_heads for log recovery item lists
Remove the roll-your-own linked list operations.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Eric Sandeen [Thu, 19 Nov 2009 15:52:00 +0000 (15:52 +0000)]
xfs: make several more functions static
Just minor housekeeping, a lot more functions can be trivially made
static; others could if we reordered things a bit...
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Thu, 14 Jan 2010 01:33:56 +0000 (01:33 +0000)]
xfs: clean up inconsistent variable naming in xfs_swap_extent
The swap extent ioctl passes in a target inode and a temporary inode
which are clearly named in the ioctl structure. The code then
assigns temp to target and vice versa, making it extremely difficult
to work out which inode is which later in the code. Make this
consistent throughout the code.
Also make xfs_swap_extent static as there are no external users of
the function.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Thu, 14 Jan 2010 01:33:55 +0000 (01:33 +0000)]
xfs: add tracing to xfs_swap_extents
To be able to diagnose whether the swap extents function is
detecting compatible inode data fork configurations for swapping
extents, add tracing points to the code to allow us to see the
format of the inode forks before and after the swap.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Thu, 14 Jan 2010 01:33:54 +0000 (01:33 +0000)]
xfs: xfs_swap_extents needs to handle dynamic fork offsets
When swapping extents, we can corrupt inodes by swapping data forks
that are in incompatible formats. This is caused by the two indoes
having different fork offsets due to the presence of an attribute
fork on an attr2 filesystem. xfs_fsr tries to be smart about
setting the fork offset, but the trick it plays only works on attr1
(old fixed format attribute fork) filesystems.
Changing the way xfs_fsr sets up the attribute fork will prevent
this situation from ever occurring, so in the kernel code we can get
by with a preventative fix - check that the data fork in the
defragmented inode is in a format valid for the inode it is being
swapped into. This will lead to files that will silently and
potentially repeatedly fail defragmentation, so issue a warning to
the log when this particular failure occurs to let us know that
xfs_fsr needs updating/fixing.
To help identify how to improve xfs_fsr to avoid this issue, add
trace points for the inodes being swapped so that we can determine
why the swap was rejected and to confirm that the code is making the
right decisions and modifications when swapping forks.
A further complication is even when the swap is allowed to proceed
when the fork offset is different between the two inodes then value
for the maximum number of extents the data fork can hold can be
wrong. Make sure these are also set correctly after the swap occurs.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Thu, 14 Jan 2010 08:44:46 +0000 (08:44 +0000)]
xfs: fix missing error check in xfs_rtfree_range
When xfs_rtfind_forw() returns an error, the block is returned
uninitialised. xfs_rtfree_range() is not checking the error return,
so could be using an uninitialised block number for modifying bitmap
summary info.
The problem was found by gcc when compiling the *userspace* libxfs
code - it is an copy of the kernel code with the exact same bug.
gcc gives an uninitialised variable warning on the userspace code
but not on the kernel code. You gotta love the consistency (Mmmm,
slightly chewy today!).
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Mon, 11 Jan 2010 11:45:21 +0000 (11:45 +0000)]
xfs: fix stale inode flush avoidance
When reclaiming stale inodes, we need to guarantee that inodes are
unpinned before returning with a "clean" status. If we don't we can
reclaim inodes that are pinned, leading to use after free in the
transaction subsystem as transactions complete.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Sun, 10 Jan 2010 23:51:48 +0000 (23:51 +0000)]
xfs: Remove inode iolock held check during allocation
lockdep complains about a the lock not being initialised as we do an
ASSERT based check that the lock is not held before we initialise it
to catch inodes freed with the lock held.
lockdep does this check for us in the lock initialisation code, so
remove the ASSERT to stop the lockdep warning.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Sun, 10 Jan 2010 23:51:47 +0000 (23:51 +0000)]
xfs: reclaim all inodes by background tree walks
We cannot do direct inode reclaim without taking the flush lock to
ensure that we do not reclaim an inode under IO. We check the inode
is clean before doing direct reclaim, but this is not good enough
because the inode flush code marks the inode clean once it has
copied the in-core dirty state to the backing buffer.
It is the flush lock that determines whether the inode is still
under IO, even though it is marked clean, and the inode is still
required at IO completion so we can't reclaim it even though it is
clean in core. Hence the requirement that we need to take the flush
lock even on clean inodes because this guarantees that the inode
writeback IO has completed and it is safe to reclaim the inode.
With delayed write inode flushing, we coul dend up waiting a long
time on the flush lock even for a clean inode. The background
reclaim already handles this efficiently, so avoid all the problems
by killing the direct reclaim path altogether.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Sun, 10 Jan 2010 23:51:46 +0000 (23:51 +0000)]
xfs: Avoid inodes in reclaim when flushing from inode cache
The reclaim code will handle flushing of dirty inodes before reclaim
occurs, so avoid them when determining whether an inode is a
candidate for flushing to disk when walking the radix trees. This
is based on a test patch from Christoph Hellwig.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Sun, 10 Jan 2010 23:51:45 +0000 (23:51 +0000)]
xfs: reclaim inodes under a write lock
Make the inode tree reclaim walk exclusive to avoid races with
concurrent sync walkers and lookups. This is a version of a patch
posted by Christoph Hellwig that avoids all the code duplication.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Linus Torvalds [Wed, 13 Jan 2010 05:15:00 +0000 (21:15 -0800)]
Linux 2.6.33-rc4
Linus Torvalds [Wed, 13 Jan 2010 05:13:06 +0000 (21:13 -0800)]
Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
pmu_battery: Fix battery full reporting
Bryn M. Reeves [Thu, 12 Nov 2009 18:31:54 +0000 (18:31 +0000)]
[SCSI] megaraid_sas: remove sysfs poll_mode_io world writeable permissions
/sys/bus/pci/drivers/megaraid_sas/poll_mode_io defaults to being
world-writable, which seems bad (letting any user affect kernel driver
behavior).
This turns off group and user write permissions, so that on typical
production systems only root can write to it.
Signed-off-by: Bryn M. Reeves <bmr@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 13 Jan 2010 05:04:04 +0000 (21:04 -0800)]
Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linux
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux:
OMAP: DSS2: OMAPFB: fix crash when panel driver was not loaded
OMAP: DSS2: Reject scaling settings when they cannot be supported
OMAP: DSS2: Make check-delay-loops consistent
OMAP: DSS2: OMAPFB: fix omapfb_free_fbmem()
video/omap: add __init/__exit macros to drivers/video/omap/lcd_htcherald.c
OMAP: DSS2: Fix compile warning
MAINTAINERS: Combine DSS2 and OMAPFB2 into one entry
MAINTAINERS: change omapfb maintainer
OMAP: OMAPFB: add dummy release function for omapdss
OMAP: OMAPFB: fix clk_get for RFBI
OMAP: DSS2: RFBI: convert to new kfifo API
OMAP: DSS2: Fix crash when panel doesn't define enable_te()
OMAP: DSS2: Collect interrupt statistics
OMAP: DSS2: DSI: print debug DCS cmd in hex
OMAP: DSS2: DSI: fix VC channels in send_short and send_null
Dave Chinner [Tue, 12 Jan 2010 06:39:16 +0000 (17:39 +1100)]
lib: Introduce generic list_sort function
There are two copies of list_sort() in the tree already, one in the DRM
code, another in ubifs. Now XFS needs this as well. Create a generic
list_sort() function from the ubifs version and convert existing users
to it so we don't end up with yet another copy in the tree.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Artem Bityutskiy <dedekind@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Jones [Tue, 12 Jan 2010 21:59:52 +0000 (16:59 -0500)]
remove my email address from checkpatch.
Maybe this will stop people emailing me about it.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 13 Jan 2010 04:56:20 +0000 (20:56 -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: retry link resume if necessary
ata_piix: enable 32bit PIO on SATA piix
sata_promise: don't classify overruns as HSM errors
Linus Torvalds [Wed, 13 Jan 2010 04:56:01 +0000 (20:56 -0800)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: Ensure ARMv6/7 mm files are built using appropriate assembler options
ARM: Fix wrong dmb
ARM: 5874/1: serial21285: fix disable_irq-from-interrupt-handler deadlock
ARM: 5873/1: ARM: Fix the reset logic for ARM RealView boards
ARM: 5872/1: ARM: include needed linux/cpu.h in asm/cpu.h
ARM: 5871/1: arch/arm: Fix build failure for lpd7a404_defconfig caused by missing includes
ARM: 5870/1: arch/arm: Fix build failure for defconfigs without CONFIG_ISA_DMA_API set
ARM: 5868/1: ARM: fix "BUG: using smp_processor_id() in preemptible code"
ARM: 5867/1: Update U300 defconfig
ARM: 5866/1: arm ptrace: use unsigned types for kernel pt_regs
[ARM] pxa: fix strange characters in zaurus gpio .desc
ARM: add missing recvmmsg syscall number
[ARM] pxa: fix compiler warnings of unused variable 'id' in cpu_is_pxa9*()
[ARM] pxa: update pwm_backlight->notify() to include missed 'struct device *'
[ARM] pxa: enable L2 if present in XSC3
[ARM] pxa: do not enable L2 after MMU is enabled
Linus Torvalds [Wed, 13 Jan 2010 04:55:31 +0000 (20:55 -0800)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (22 commits)
MIPS: Ignore vmlinux.*
MIPS: Move vmlinux.ecoff to arch/mips/boot
MIPS: cpumask_of_node() should handle -1 as a node
MIPS: Octeon: Use non-overflowing arithmetic in sched_clock
MIPS: Malta, PowerTV: Remove unnecessary "Linux started"
MIPS: BCM63xx: Remove duplicate CONFIG_CMDLINE.
MIPS: AR7: Remove unused prom_getchar()
MIPS: PowerTV: Remove extra r4k_clockevent_init() call
MIPS: Cobalt use strlcat() for the command line arguments
MIPS: Octeon: Add sched_clock() to csrc-octeon.c
MIPS: TXx9: Cleanup builtin-cmdline processing
MIPS: PowerTV: simplify prom_init_cmdline() and merge into prom_init()
MIPS: PowerTV: Remove unused platform_die()
MIPS: PowerTV: Remove mips_machine_halt()
MIPS: PowerTV: Remove unused ptv_memsize
MIPS: PowerTV: Remove unused prom_getcmdline()
MIPS: AR7: Remove kgdb_enabled
MIPS: Alchemy: Correct code taking the size of a pointer
MIPS: BCM63xx: Fix whitespace damaged board_bcm963xx.c
MIPS: VR41xx: Use strlcat() for the command line arguments
...
Linus Torvalds [Wed, 13 Jan 2010 04:54:52 +0000 (20:54 -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:
ALSA: hda - Fix ALC861-VD capture source mixer
ALSA: ac97: add AC97 STMicroelectronics' codecs
ALSA: ac97: Add Dell Dimension 2400 to Headphone/Line Jack Sense blacklist
ASoC: Fix WM8350 DSP mode B configuration
sbawe: fix memory detection part 2
sound: oss: off by one bug
ALSA: usb-audio - Avoid Oops after disconnect
ALSA: test off by one in setsamplerate()
ALSA: atiixp: Specify codec for Foxconn RC4107MA-RS2
Linus Torvalds [Wed, 13 Jan 2010 04:53:29 +0000 (20:53 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits)
sky2: Fix oops in sky2_xmit_frame() after TX timeout
Documentation/3c509: document ethtool support
af_packet: Don't use skb after dev_queue_xmit()
vxge: use pci_dma_mapping_error to test return value
netfilter: ebtables: enforce CAP_NET_ADMIN
e1000e: fix and commonize code for setting the receive address registers
e1000e: e1000e_enable_tx_pkt_filtering() returns wrong value
e1000e: perform 10/100 adaptive IFS only on parts that support it
e1000e: don't accumulate PHY statistics on PHY read failure
e1000e: call pci_save_state() after pci_restore_state()
netxen: update version to 4.0.72
netxen: fix set mac addr
netxen: fix smatch warning
netxen: fix tx ring memory leak
tcp: update the netstamp_needed counter when cloning sockets
TI DaVinci EMAC: Handle emac module clock correctly.
dmfe/tulip: Let dmfe handle DM910x except for SPARC on-board chips
ixgbe: Fix compiler warning about variable being used uninitialized
netfilter: nf_ct_ftp: fix out of bounds read in update_nl_seq()
mv643xx_eth: don't include cache padding in rx desc buffer size
...
Fix trivial conflict in drivers/scsi/cxgb3i/cxgb3i_offload.c
Greg Ungerer [Wed, 13 Jan 2010 00:42:05 +0000 (10:42 +1000)]
m68knommu: fix definitions of __pa() and __va()
Fix compilation breakage of all m68knommu targets:
CC arch/m68knommu/kernel/asm-offsets.s
In file included from include/linux/sched.h:77,
from arch/m68knommu/kernel/asm-offsets.c:12:
include/linux/percpu.h: In function 'per_cpu_ptr_to_phys':
include/linux/percpu.h:161: error: implicit declaration of function 'virt_to_phy
This is broken in linux-2.6.33-rc3.
Change the definitions of __pa() and __va() to not use virt_to_phys()
and phys_to_virt(). Trivial 1:1 conversion required for the non-MMU case.
A side effect if this is that the m68knommu can now use asm/virtconvert.h
for the definition of virt_to_phys() and phys_to_virt().
Also cleaned up the definition of page_to_phys() when moving into
virtconvert.h.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun Heo [Mon, 11 Jan 2010 02:14:44 +0000 (11:14 +0900)]
libata: retry link resume if necessary
Interestingly, when SIDPR is used in ata_piix, writes to DET in
SControl sometimes get ignored leading to detection failure. Update
sata_link_resume() such that it reads back SControl after clearing DET
and retry if it's not clear.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: fengxiangjun <fengxiangjun@neusoft.com>
Reported-by: Jim Faulkner <jfaulkne@ccs.neu.edu>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Mon, 11 Jan 2010 08:03:11 +0000 (17:03 +0900)]
ata_piix: enable 32bit PIO on SATA piix
Commit
871af1210f13966ab911ed2166e4ab2ce775b99d enabled 32bit PIO for
PATA piix but didn't for SATA. There's no reason not to use 32bit PIO
on SATA piix. Enable it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Mikael Pettersson [Sat, 9 Jan 2010 22:32:06 +0000 (23:32 +0100)]
sata_promise: don't classify overruns as HSM errors
When sata_promise encounters an overrun or underrun error it
translates that to a libata AC_ERR_HSM, causing a hard reset.
Since over/under-runs were thought to be rare and transient,
this action seemed reasonable.
Unfortunately it turns out that the controller throws overrun
errors when e.g. hal polls a CD or DVD writer containing blank
media, causing long sequences of hard resets and retries before
EH finally gives up.
This patch updates sata_promise to classify over/under-runs as
AC_ERR_OTHER instead. This allows libata EH and upper layers to
retry or fail the operation as they see fit without the disruption
caused by repeated hard resets.
This fixes a problem using a DVD-RAM drive with sata_promise,
reported by Thomas Schorpp. I also tested it on a DVD-RW drive.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: thomas schorpp <thomas.schorpp@googlemail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Russell King [Tue, 12 Jan 2010 19:02:05 +0000 (19:02 +0000)]
ARM: Ensure ARMv6/7 mm files are built using appropriate assembler options
A kernel with both ARMv6 and ARMv7 selected results in build errors.
Fix this by specifying the proper architectures for these assembly
files.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 12 Jan 2010 18:59:16 +0000 (18:59 +0000)]
ARM: Fix wrong dmb
The __kuser_cmpxchg code uses an ARMv6 dmb instruction, rather than
one based upon the architecture being built for. Switch to using
the macro provided for this purpose, which also eliminates the
need for an ifdef.
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Yoichi Yuasa [Fri, 18 Dec 2009 12:14:19 +0000 (21:14 +0900)]
MIPS: Ignore vmlinux.*
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/795/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Fri, 18 Dec 2009 12:13:17 +0000 (21:13 +0900)]
MIPS: Move vmlinux.ecoff to arch/mips/boot
It moves to the same directory as the boot files in other formats.
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/796/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Anton Blanchard [Wed, 6 Jan 2010 04:55:13 +0000 (15:55 +1100)]
MIPS: cpumask_of_node() should handle -1 as a node
pcibus_to_node can return -1 if we cannot determine which node a pci bus
is on. If passed -1, cpumask_of_node will negatively index the lookup array
and pull in random data:
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpus
00000000,
00000003,
00000000,
00000000
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpulist
64-65
Change cpumask_of_node to check for -1 and return cpu_all_mask in this
case:
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpus
ffffffff,
ffffffff,
ffffffff,
ffffffff
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpulist
0-127
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Patchwork: http://patchwork.linux-mips.org/patch/831/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Fri, 8 Jan 2010 22:47:36 +0000 (14:47 -0800)]
MIPS: Octeon: Use non-overflowing arithmetic in sched_clock
With typical mult and shift values, the calculation for Octeon's sched_clock
overflows when using 64-bit arithmetic. Use 128-bit calculations instead.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/849/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Sun, 3 Jan 2010 05:47:34 +0000 (14:47 +0900)]
MIPS: Malta, PowerTV: Remove unnecessary "Linux started"
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/813/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Sun, 3 Jan 2010 05:39:11 +0000 (14:39 +0900)]
MIPS: BCM63xx: Remove duplicate CONFIG_CMDLINE.
Builtin cmdline is copied by arch_mem_init().
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/812/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Sun, 3 Jan 2010 05:13:04 +0000 (14:13 +0900)]
MIPS: AR7: Remove unused prom_getchar()
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/811/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David VomLehn [Tue, 22 Dec 2009 01:43:42 +0000 (17:43 -0800)]
MIPS: PowerTV: Remove extra r4k_clockevent_init() call
A call to r4k_clocksource_init() was added to plat_time_init(), but
when init_mips_clock_source() calls the same function, boot fails in
clockevents_register_device(). This patch removes the extraneous call.
Signed-off-by: David VomLehn <dvomlehn@cisco.com>
Patchwork: http://patchwork.linux-mips.org/patch/803/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Thu, 24 Dec 2009 08:06:34 +0000 (17:06 +0900)]
MIPS: Cobalt use strlcat() for the command line arguments
Tested with CoLo v1.22
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/807/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Wed, 23 Dec 2009 21:18:54 +0000 (13:18 -0800)]
MIPS: Octeon: Add sched_clock() to csrc-octeon.c
With the advent of function graph tracing on MIPS, Octeon needs a high
precision sched_clock() implementation. Without it, most timing
numbers are reported as 0.000.
This new sched_clock just uses the 64-bit cycle counter appropriately
scaled.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Patchwork: http://patchwork.linux-mips.org/patch/805/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Atsushi Nemoto [Mon, 21 Dec 2009 15:48:57 +0000 (00:48 +0900)]
MIPS: TXx9: Cleanup builtin-cmdline processing
Since commit
898d357b5262f9e26bc2418e01f8676e80d9867e (lmo) /
6acc7d485c24c00e111c61b2e6dff9180faebcae (kernel.org) ("Fix and enhance
built-in kernel command line") arcs_cmdline[] does not contain built-in
command line. The commit introduce CONFIG_CMDLINE_BOOL and
CONFIG_CMDLINE_OVERRIDE to control built-in command line, and now we can
use them instead of platform-specific built-in command line processing.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Patchwork: http://patchwork.linux-mips.org/patch/802/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Fri, 18 Dec 2009 12:38:37 +0000 (21:38 +0900)]
MIPS: PowerTV: simplify prom_init_cmdline() and merge into prom_init()
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/801/
Reviewed-by: David VomLehn <dvomlehn@cisco.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Fri, 18 Dec 2009 12:36:32 +0000 (21:36 +0900)]
MIPS: PowerTV: Remove unused platform_die()
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/800/
Reviewed-by: David VomLehn <dvomlehn@cisco.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Fri, 18 Dec 2009 12:33:46 +0000 (21:33 +0900)]
MIPS: PowerTV: Remove mips_machine_halt()
mips_machine_halt() is same as mips_machine_restart(). Also delete the
registration of _machine_halt and pm_power_off because mips_machine_halt()
is the restart function.
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/798/
Reviewed-by: David VomLehn <dvomlehn@cisco.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Fri, 18 Dec 2009 12:30:18 +0000 (21:30 +0900)]
MIPS: PowerTV: Remove unused ptv_memsize
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/799/
Reviewed-by: David VomLehn <dvomlehn@cisco.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Fri, 18 Dec 2009 12:29:17 +0000 (21:29 +0900)]
MIPS: PowerTV: Remove unused prom_getcmdline()
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/797/
Reviewed-by: David VomLehn <dvomlehn@cisco.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Fri, 18 Dec 2009 12:20:24 +0000 (21:20 +0900)]
MIPS: AR7: Remove kgdb_enabled
An unused leftover from the old KGDB implementation.
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/794/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Julia Lawall [Sun, 13 Dec 2009 11:40:39 +0000 (12:40 +0100)]
MIPS: Alchemy: Correct code taking the size of a pointer
sizeof(dp) is just the size of the pointer. Change it to the size of the
referenced structure.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression *x;
expression f;
type T;
@@
*f(...,(T)x,...)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Patchwork: http://patchwork.linux-mips.org/patch/789/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Florian Fainelli [Sat, 12 Dec 2009 16:57:39 +0000 (17:57 +0100)]
MIPS: BCM63xx: Fix whitespace damaged board_bcm963xx.c
Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Thu, 10 Dec 2009 05:00:39 +0000 (14:00 +0900)]
MIPS: VR41xx: Use strlcat() for the command line arguments
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/784/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Wu Zhangjin [Thu, 10 Dec 2009 14:55:13 +0000 (22:55 +0800)]
MIPS: Cleanup and Fixup of compressed kernel support
o Remove the .initrd section. The initrd section was already handled
when vmlinux was linked.
o Discard .MIPS.options, .options, .pdr, .reginfo, .comment and .note
sections. If .MIPS.options is not removed, kernels compiled with gcc
3.4.6 will not boot.
o Clean up the file format.
o Remove several other unneeded sections.
Tested with GCC 3.4.6 and 4.4.1 with and without initrd.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/785/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Fri, 4 Dec 2009 01:43:54 +0000 (17:43 -0800)]
MIPS: Cleanup forgotten label_module_alloc in tlbex.c
commit
c8af165342e83a4eb078c9607d29a7c399d30a53 (lmo) rsp.
e0cc87f59490d7d62a8ab2a76498dc8a2b64927a (kernel.org) left
label_module_alloc unused. Remove it now.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/752/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Takashi Iwai [Tue, 12 Jan 2010 16:50:06 +0000 (17:50 +0100)]
Merge branch 'fix/asoc' into for-linus
Takashi Iwai [Tue, 12 Jan 2010 16:50:03 +0000 (17:50 +0100)]
Merge branch 'fix/hda' into for-linus
Takashi Iwai [Tue, 12 Jan 2010 13:00:11 +0000 (14:00 +0100)]
ALSA: hda - Fix ALC861-VD capture source mixer
The capture source or input source mixer element wasn't created properly
for ALC861-VD codec due to the wrong NID passed to
alc_auto_create_input_ctls().
References: Novell bnc#568305
http://bugzilla.novell.com/show_bug.cgi?id=568305
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@kernel.org>
Jarek Poplawski [Mon, 4 Jan 2010 08:48:41 +0000 (08:48 +0000)]
sky2: Fix oops in sky2_xmit_frame() after TX timeout
During TX timeout procedure dev could be awoken too early, e.g. by
sky2_complete_tx() called from sky2_down(). Then sky2_xmit_frame()
can run while buffers are freed causing an oops. This patch fixes it
by adding netif_device_present() test in sky2_tx_complete().
Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=14925
With debugging by: Mike McCormack <mikem@ring3k.org>
Reported-by: Berck E. Nash <flyboy@gmail.com>
Tested-by: Berck E. Nash <flyboy@gmail.com>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tomi Valkeinen [Thu, 7 Jan 2010 15:45:03 +0000 (17:45 +0200)]
OMAP: DSS2: OMAPFB: fix crash when panel driver was not loaded
If the panel's probe had failed, omapfb would still go on, eventually
crashing.
A better fix would be to handle each display properly, and leaving just
the failed display out. But that is a bigger change.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Ville Syrjälä [Fri, 8 Jan 2010 09:56:41 +0000 (11:56 +0200)]
OMAP: DSS2: Reject scaling settings when they cannot be supported
If the scaling ratio is below 0.5 video output width can't be identical
to the display width. Reject such settings.
Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Takashi Iwai [Tue, 12 Jan 2010 08:40:48 +0000 (09:40 +0100)]
Merge remote branch 'alsa/fixes' into fix/misc
Ananth N Mavinakayanahalli [Mon, 11 Jan 2010 23:51:04 +0000 (15:51 -0800)]
Revert "x86, apic: Use logical flat on intel with <= 8 logical cpus"
Revert commit
2fbd07a5f5d1295fa9b0c0564ec27da7c276a75a, as this commit
breaks an IBM platform with quad-core Xeon cpu's.
According to Suresh, this might be an IBM platform issue, as on other
Intel platforms with <= 8 logical cpu's, logical flat mode works fine
irespective of physical apic id values (inline with the xapic
architecture).
Revert this for now because of the IBM platform breakage.
Another version will be re-submitted after the complete analysis.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ben Hutchings [Mon, 11 Jan 2010 23:53:45 +0000 (15:53 -0800)]
Documentation/3c509: document ethtool support
3c509 was changed to support ethtool in 2002, making the 'xcvr' module
parameter obsolete in most cases. More recently 3c509 was converted
to the modern driver model and this parameter was removed. Fix the
documentation to refer to ethtool rather than the module parameter.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jarek Poplawski [Sun, 10 Jan 2010 22:04:19 +0000 (22:04 +0000)]
af_packet: Don't use skb after dev_queue_xmit()
tpacket_snd() can change and kfree an skb after dev_queue_xmit(),
which is illegal.
With debugging by: Stephen Hemminger <shemminger@vyatta.com>
Reported-by: Michael Breuer <mbreuer@majjas.com>
With help from: David S. Miller <davem@davemloft.net>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Tested-by: Michael Breuer<mbreuer@majjas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 11 Jan 2010 17:48:48 +0000 (09:48 -0800)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: Ensure we force all busy extents in range to disk
xfs: Don't flush stale inodes
xfs: fix timestamp handling in xfs_setattr
xfs: use DECLARE_EVENT_CLASS
Linus Torvalds [Mon, 11 Jan 2010 17:48:29 +0000 (09:48 -0800)]
Merge git://git./linux/kernel/git/steve/gfs2-2.6-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
GFS2: Use MAX_LFS_FILESIZE for meta inode size
GFS2: Fix gfs2_xattr_acl_chmod()
GFS2: Fix locking bug in rename
GFS2: Ensure uptodate inode size when using O_APPEND
Linus Torvalds [Mon, 11 Jan 2010 17:48:14 +0000 (09:48 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
quota: Fix dquot_transfer for filesystems different from ext4
Linus Torvalds [Mon, 11 Jan 2010 17:47:52 +0000 (09:47 -0800)]
Merge branch 'agp-fixes' of git://git./linux/kernel/git/airlied/agp-2.6
* 'agp-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6:
agp/hp: fail gracefully if we don't find an IOC
agp/hp: fixup hp agp after ACPI changes
agp: correct missing cleanup on error in agp_add_bridge
Linus Torvalds [Mon, 11 Jan 2010 17:46:20 +0000 (09:46 -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: (45 commits)
drm/nv04: Fix set_operation software method.
drm/nouveau: initialise DMA tracking parameters earlier
drm/nouveau: use dma.max rather than pushbuf size for checking GET validity
drm/nv04: differentiate between nv04/nv05
drm/nouveau: Fix null deref in nouveau_fence_emit due to deleted fence
drm/nv50: prevent a possible ctxprog hang
drm/nouveau: have ttm's fault handler called directly
drm/nv50: restore correct cache1 get/put address on fifoctx load
drm/nouveau: create function for "dealing" with gpu lockup
drm/nouveau: remove unused nouveau_channel_idle() function
drm/nouveau: fix handling of fbcon colours in 8bpp
drm/nv04: Context switching fixes.
drm/nouveau: Use the software object for fencing.
drm/nouveau: Allocate a per-channel instance of NV_SW.
drm/nv50: make the blocksize depend on vram size
drm/nouveau: better alignment of bo sizes and use roundup instead of ALIGN
drm/nouveau: Don't skip card take down on nv0x.
drm/nouveau: Implement nv42-nv43 TV load detection.
drm/nouveau: Clean up the nv17-nv4x load detection code a bit.
drm/nv50: fix fillrect color
...
Linus Torvalds [Mon, 11 Jan 2010 17:45:55 +0000 (09:45 -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: Make PCI device ids constant
hwmon: (coretemp) Fix TjMax for Atom N450/D410/D510 CPUs
hwmon: (k10temp) Blacklist more family 10h processors
hwmon: (asus_atk0110) Add debugfs interface
hwmon: (asus_atk0110) Refactor interface probe code
hwmon: (adt7462) Fix pin 28 monitoring
Avi Kivity [Sun, 10 Jan 2010 14:28:09 +0000 (16:28 +0200)]
core, x86: make LIST_POISON less deadly
The list macros use LIST_POISON1 and LIST_POISON2 as undereferencable
pointers in order to trap erronous use of freed list_heads. Unfortunately
userspace can arrange for those pointers to actually be dereferencable,
potentially turning an oops to an expolit.
To avoid this allow architectures (currently x86_64 only) to override
the default values for these pointers with truly-undereferencable values.
This is easy on x86_64 as the virtual address space is large and contains
areas that cannot be mapped.
Other 64-bit architectures will likely find similar unmapped ranges.
[ingo: switch to 0xdead000000000000 as the unmapped area]
[ingo: add comments, cleanup]
[jaswinder: eliminate sparse warnings]
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 11 Jan 2010 17:44:19 +0000 (09:44 -0800)]
Merge branch 'omap-fixes-for-linus' of git://git./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: (26 commits)
OMAP2 clock: dynamically allocate CPUFreq frequency table
OMAP clock/CPUFreq: add clk_exit_cpufreq_table()
OMAP2xxx OPP: clean up comments in OPP data
OMAP2xxx clock: clk2xxx.c doesn't compile if CPUFREQ is enabled
OMAP1 clock: remove __initdata from struct clk_functions to prevent crash
OMAP1 clock: Add missing clocks for OMAP 7xx
OMAP clock: remove incorrect EXPORT_SYMBOL()s
OMAP3 clock: Add capability to change rate of dpll4_m5_ck
OMAP3 clock: McBSP 2, 3, 4 functional clock parent is PER_96M_FCLK, not CORE_96M_FCLK
OMAP3: clock: add clockdomains for UART1 & 2
OMAP2420 IO mapping: move IVA mapping virtual address out of vmalloc space
OMAP2xxx IO mapping: mark DSP mappings as being 2420-only
ARM: OMAP3: PM: Fix the Invalid CM_CLKSTCTRL reg access.
OMAP2: remove duplicated #include
omap3: EVM: Choose OMAP_PACKAGE_CBB
omap3: Fix booting if package is uninitialized
omap3: add missing parentheses
omap3: add missing parentheses
omap2/3: ZOOM: Correcting key mapping for few keys
omap2/3: make serial_in_override() address the right uart port
...
David Howells [Fri, 8 Jan 2010 22:43:21 +0000 (14:43 -0800)]
mn10300: update the ASB2303 defconfig
Update the defconfig for the ASB2303 platform.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 8 Jan 2010 22:43:21 +0000 (14:43 -0800)]
mn10300: make the ASB2305's PCnet32 NIC work by using the PCI bridge's SRAM
Access to the ASB2305's PCnet32 NIC doesn't work correctly because when
the NIC attempts to update the ring buffer flags by DMA, the change to RAM
crops up about 17uS after the interrupt line is asserted. This is almost
certainly due to a bug in the PCI bridge FPGA on that board.
We can get around this by making dma_alloc_coherent() put the ring buffer
in the SRAM attached to the PCI bridge rather than in the SDRAM.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 8 Jan 2010 22:43:20 +0000 (14:43 -0800)]
mn10300: insert PCI root bus resources for the ASB2305 devel motherboard
Insert PCI root bus resources for the MN10300-based ASB2305 development
kit motherboard. This is required because the CPU's window onto the PCI
bus address space is considerably smaller than the CPU's full address
space and non-PCI devices lie outside of the PCI window that we might want
to access.
Without this patch, the PCI root bus uses the platform-level bus
resources, and these are then confined to the PCI window, thus making
platform_device_add() reject devices outside of this window.
We also add a reservation for the PCI SRAM region.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bjorn Helgaas [Fri, 8 Jan 2010 22:43:19 +0000 (14:43 -0800)]
mn10300: use generic pci_enable_resources()
Use the generic pci_enable_resources() instead of the arch-specific code.
Unlike this arch-specific code, the generic version:
- checks PCI_NUM_RESOURCES (11), not 6, resources
- skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
- skips ROM resources unless IORESOURCE_ROM_ENABLE is set
- checks for resource collisions with "!r->parent"
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 8 Jan 2010 22:43:18 +0000 (14:43 -0800)]
mn10300: use KERN_ERR not KERN_ERROR
Use KERN_ERR not KERN_ERROR in the ASB2305 platform code.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Al Viro [Fri, 8 Jan 2010 22:43:17 +0000 (14:43 -0800)]
mn10300: fix several bogus includes on abs2305
asm/cpu never existed for mn10300; the files they are looking for are in
asm.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 8 Jan 2010 22:43:17 +0000 (14:43 -0800)]
mn10300: wire up missing new syscalls
Wire up missing new system calls for MN10300.
Signed-off-by: David Howells <dhowelsl@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mark Salter [Fri, 8 Jan 2010 22:43:16 +0000 (14:43 -0800)]
mn10300: add cc clobbers to asm statements
gcc 4.2.1 for MN10300 is more agressive than the older gcc in
reordering/moving other insns between an insn that sets flags and an insn
that uses those flags. This leads to trouble with asm statements which
are missing an explicit "cc" clobber. This patch adds the explicit "cc"
clobber to asm statements which do indeed clobber the condition flags.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mark Salter [Fri, 8 Jan 2010 22:43:15 +0000 (14:43 -0800)]
mn10300: objcopy flags fix
The gcc-4.2.1 based toolchain for MN10300 adds some new note sections
which need to be stripped from the binary image. This patch takes care of
that.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mark Salter [Fri, 8 Jan 2010 22:43:14 +0000 (14:43 -0800)]
mn10300: signal stack fix
This fixes a signal stack handling problem in the MN10300 arch. When new
threads are cloned with CLONE_VM, they don't inherit the alternate signal
stack. They do share the signal flags, though. When deciding whether to
use an alternate stack, the arch code needs to check to make sure the task
struct contains a valid alternate stack. This patch fixes the MN10300
arch by using the sas_ss_flags() test provided by sched.h rather than the
on_sig_stack() test which is insufficient by itself.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
OGAWA Hirofumi [Fri, 8 Jan 2010 22:43:11 +0000 (14:43 -0800)]
rtc_cmos: convert shutdown to new pnp_driver->shutdown
commit
abd6633c67925f90775bb74755f9c547e30f1f20 ("pnp: add a shutdown
method to pnp drivers") adds shutdown method to bus driver blindly. With
it, driver->shutdown is no longer valid.
Use pnp_driver->shutdown instead.
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14889
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reported-by: Malte Schröder <maltesch@gmx.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: David Hardeman <david@hardeman.nu>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Cc: <stable@kernel.org> [2.6.32.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Minchan Kim [Fri, 8 Jan 2010 22:43:10 +0000 (14:43 -0800)]
smaps: fix wrong rss count
A long time ago we regarded zero page as file_rss and vm_normal_page
doesn't return NULL.
But now, we reinstated ZERO_PAGE and vm_normal_page's implementation can
return NULL in case of zero page. Also we don't count it with file_rss
any more.
Then, RSS and PSS can't be matched. For consistency, Let's ignore zero
page in smaps_pte_range.
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Acked-by: Matt Mackall <mpm@selenic.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Fri, 8 Jan 2010 22:43:09 +0000 (14:43 -0800)]
documentation: update kernel-doc-nano-HOWTO information
Remove comments about function short descriptions not allowed to be on
multiple lines (that was fixed/changed recently).
Add comments that function "section header:" names need to be unique per
function/struct/union/typedef/enum.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Hennerich [Fri, 8 Jan 2010 22:43:08 +0000 (14:43 -0800)]
gpio: adp5588-gpio: new driver for ADP5588 GPIO expanders
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stephen Hemminger [Fri, 8 Jan 2010 22:43:08 +0000 (14:43 -0800)]
drivers/cpuidle/governors/menu.c: fix undefined reference to `__udivdi3'
menu: use proper 64 bit math
The new menu governor is incorrectly doing a 64 bit divide. Compile
tested only
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Fri, 8 Jan 2010 22:43:07 +0000 (14:43 -0800)]
Documentation: update ring-buffer-design.txt
Fix typos, grammos, spellos, hyphenation.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrea Arcangeli [Fri, 8 Jan 2010 22:43:05 +0000 (14:43 -0800)]
mm: hugetlb: fix clear_huge_page()
sz is in bytes, MAX_ORDER_NR_PAGES is in pages.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: David Gibson <dwg@au1.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: David Rientjes <rientjes@google.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tomaz Mertelj [Fri, 8 Jan 2010 22:43:04 +0000 (14:43 -0800)]
hwmon: driver for Texas Instruments amc6821 chip
Signed-off-by: <tomaz.mertelj@guest.arnes.si>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jani Nikula [Fri, 8 Jan 2010 22:43:03 +0000 (14:43 -0800)]
gpiolib: fix poll(2) support reconfigure on sysfs polarity change
Previously enabled poll(2) support on one edge was never reconfigured when
sysfs polarity change was triggered from kernel, because 'struct device
*dev' shadowed an earlier definition.
Found by sparse, which I should've run much earlier.
Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Uwe Kleine-König [Fri, 8 Jan 2010 22:43:02 +0000 (14:43 -0800)]
vsnprintf: fix reference for compressed ipv6 addresses
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reported-by: Josip Rodin <joy@entuzijast.net>
Cc: Joe Perches <joe@perches.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adrian Hunter [Fri, 8 Jan 2010 22:43:01 +0000 (14:43 -0800)]
mmc: allow for MMC v4.4
JEDEC eMMC specification version 4.4 (MMCA 4.4) defines Extended CSD
structure versions up to 5.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adrian Hunter [Fri, 8 Jan 2010 22:43:00 +0000 (14:43 -0800)]
mmc_block: fix queue cleanup
The main bug was that 'blk_cleanup_queue()' was called while the block
device could still be in use, for example, because the card was removed
while files were still open.
In addition, to be sure that 'mmc_request()' will get called for all new
requests (so it can error them out), the queue is emptied during cleanup.
This is done after the worker thread is stopped to avoid racing with it.
Finally, it is not a device error for this to be happening, so quiet the
(sometimes very many) error messages.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jarkko Lavinen [Fri, 8 Jan 2010 22:42:59 +0000 (14:42 -0800)]
mmc_block: fix probe error cleanup bug
If mmc_blk_set_blksize() fails mmc_blk_probe() the request queue and its
thread have been set up and they need to be shut down properly before
putting the disk.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Anna Lemehova [Fri, 8 Jan 2010 22:42:58 +0000 (14:42 -0800)]
mmc_block: add dev_t initialization check
When a card is removed before mmc_blk_probe() has called add_disk(), then
the minor field is uninitialized and has value 0. This caused
mmc_blk_put() to always release devidx 0 even if 0 was still in use. Then
the next mmc_blk_probe() used the first free idx of 0, which oopses in
sysfs, since it is used by another card.
Signed-off-by: Anna Lemehova <EXT-Anna.Lemehova@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>