21 Jul, 2010
21 commits
-
Up to 2.6.34 pcmcia_release_irq() reset p_dev->_irq to 0 after releasing
the irq. The IRQ is now released in pcmcia_disable_device(), however
p_dev->_irq is not reset, triggering a warning in pcmcia_device_remove().Signed-off-by: Patrick McHardy
Signed-off-by: Andrew Morton
Signed-off-by: Dominik Brodowski -
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/r600: fix possible NULL pointer derefernce
drm/radeon/kms: add quirk for ASUS HD 3600 board
include/linux/vgaarb.h: add missing part of include guard
drm/nouveau: Fix crashes during fbcon init on single head cards.
drm/nouveau: fix pcirom vbios shadow breakage from acpi rom patch
drm/radeon/kms: fix shared ddc harder
drm/i915: enable low power render writes on GEN3 hardware.
drm/i915: Define MI_ARB_STATE bits
vmwgfx: return -EFAULT if copy_to_user fails
fb: handle allocation failure in alloc_apertures()
drm: radeon: check kzalloc() result
drm/ttm: Fix build on architectures without AGP
drm/radeon/kms: fix gtt MC base alignment on rs4xx/rs690/rs740 asics
drm/radeon/kms: fix possible mis-detection of sideport on rs690/rs740
drm/radeon/kms: fix legacy tv-out pal mode -
Reported-by: Alexander Y. Fomichev
Signed-off-by: Alex Deucher
Signed-off-by: Dave Airlie -
Connector is actually DVI rather than HDMI.
Reported-by: trapDoor
Signed-off-by: Alex Deucher
Cc: stable@kernel.org
Signed-off-by: Dave Airlie -
vgaarb.h was missing the #define of the #ifndef at the top for the guard
to prevent multiple #include's from causing re-define errorsSigned-off-by: Doug Goldstein
Cc: Dave Airlie
Cc: Jesse Barnes
Signed-off-by: Andrew Morton
Signed-off-by: Dave Airlie -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: do not include cap/dentry releases in replayed messages
ceph: reuse request message when replaying against recovering mds
ceph: fix creation of ipv6 sockets
ceph: fix parsing of ipv6 addresses
ceph: fix printing of ipv6 addrs
ceph: add kfree() to error path
ceph: fix leak of mon authorizer
ceph: fix message revocation -
* 'linuxdocs' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs:
documentation: fix almost duplicate filenames (IO/io-mapping.txt) -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (24 commits)
bridge: Partially disable netpoll support
tcp: fix crash in tcp_xmit_retransmit_queue
IPv6: fix CoA check in RH2 input handler (mip6_rthdr_input())
ibmveth: lost IRQ while closing/opening device leads to service loss
rt2x00: Fix lockdep warning in rt2x00lib_probe_dev()
vhost: avoid pr_err on condition guest can trigger
ipmr: Don't leak memory if fib lookup fails.
vhost-net: avoid flush under lock
net: fix problem in reading sock TX queue
net/core: neighbour update Oops
net: skb_tx_hash() fix relative to skb_orphan_try()
rfs: call sock_rps_record_flow() in tcp_splice_read()
xfrm: do not assume that template resolving always returns xfrms
hostap_pci: set dev->base_addr during probe
axnet_cs: use spin_lock_irqsave in ax_interrupt
dsa: Fix Kconfig dependencies.
act_nat: not all of the ICMP packets need an IP header payload
r8169: incorrect identifier for a 8168dp
Phonet: fix skb leak in pipe endpoint accept()
Bluetooth: Update sec_level/auth_type for already existing connections
... -
If a single-threaded process does a file-descriptor operation, and some
other process accesses that same file descriptor via /proc, the current
rcu_dereference_check_fdtable() can give a false-positive RCU-lockdep
splat due to the reference count being increased by the /proc access after
the reference-count check in fget_light() but before the check in
rcu_dereference_check_fdtable().This commit prevents this false positive by checking for a single-threaded
process. To avoid #include hell, this commit uses the wrapper for
thread_group_empty(current) defined by rcu_my_thread_group_empty()
provided in a separate commit.Located-by: Miles Lane
Located-by: Eric Dumazet
Signed-off-by: Paul E. McKenney
Cc: Al Viro
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
System will crash sooner or later once the memory with the code of the
s3c-sdhci.ko module is reused for something else. I really have no idea
how the lack of remove function went unnoticed into the mainline code.Signed-off-by: Marek Szyprowski
Signed-off-by: Kyungmin Park
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
My Collabora address is no longer enabled - update the MODULE_AUTHOR
fields of drivers to my current email address.Signed-off-by: Andres Salomon
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Borislav Petkov reported his 32bit numa system has problem:
[ 0.000000] Reserving total of 4c00 pages for numa KVA remap
[ 0.000000] kva_start_pfn ~ 32800 max_low_pfn ~ 375fe
[ 0.000000] max_pfn = 238000
[ 0.000000] 8202MB HIGHMEM available.
[ 0.000000] 885MB LOWMEM available.
[ 0.000000] mapped low ram: 0 - 375fe000
[ 0.000000] low ram: 0 - 375fe000
[ 0.000000] alloc (nid=8 100000 - 7ee00000) (1000000 - ffffffff) 1000 1000 => 34e7000
[ 0.000000] alloc (nid=8 100000 - 7ee00000) (1000000 - ffffffff) 200 40 => 34c9d80
[ 0.000000] alloc (nid=0 100000 - 7ee00000) (1000000 - ffffffffffffffff) 180 40 => 34e6140
[ 0.000000] alloc (nid=1 80000000 - c7e60000) (1000000 - ffffffffffffffff) 240 40 => 80000000
[ 0.000000] BUG: unable to handle kernel paging request at 40000000
[ 0.000000] IP: [] __alloc_memory_core_early+0x147/0x1d6
[ 0.000000] *pdpt = 0000000000000000 *pde = f000ff53f000ff00
...
[ 0.000000] Call Trace:
[ 0.000000] [] ? __alloc_bootmem_node+0x216/0x22f
[ 0.000000] [] ? sparse_early_usemaps_alloc_node+0x5a/0x10b
[ 0.000000] [] ? sparse_init+0x1dc/0x499
[ 0.000000] [] ? paging_init+0x168/0x1df
[ 0.000000] [] ? native_pagetable_setup_start+0xef/0x1bblooks like it allocates too much high address for bootmem.
Try to cut limit with get_max_mapped()
Reported-by: Borislav Petkov
Tested-by: Conny Seidel
Signed-off-by: Yinghai Lu
Cc: [2.6.34.x]
Cc: Ingo Molnar
Cc: "H. Peter Anvin"
Cc: Thomas Gleixner
Cc: Johannes Weiner
Cc: Lee Schermerhorn
Cc: Mel Gorman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit e534c7c5f8d6 ("numa: x86_64: use generic percpu var
numa_node_id() implementation") broke numa systems that don't have ram
on node0 when MEMORY_HOTPLUG is enabled, because cpu_up() will call
cpu_to_node() before per_cpu(numa_node) is setup for APs.When Node0 doesn't have RAM, on x86, cpus already round it to nearest
node with RAM in x86_cpu_to_node_map. and per_cpu(numa_node) is not set
up until in c_init for APs.When later cpu_up() calling cpu_to_node() will get 0 again, and make it
online even there is no RAM on node0. so later all APs can not booted up,
and later will have panic.[ 1.611101] On node 0 totalpages: 0
.........
[ 2.608558] On node 0 totalpages: 0
[ 2.612065] Brought up 1 CPUs
[ 2.615199] Total of 1 processors activated (3990.31 BogoMIPS).
...
93.225341] calling loop_init+0x0/0x1a4 @ 1
[ 93.229314] PERCPU: allocation failed, size=80 align=8, failed to populate
[ 93.246539] Pid: 1, comm: swapper Tainted: G W 2.6.35-rc4-tip-yh-04371-gd64e6c4-dirty #354
[ 93.264621] Call Trace:
[ 93.266533] [] pcpu_alloc+0x83a/0x8e7
[ 93.270710] [] __alloc_percpu+0x10/0x12
[ 93.285849] [] alloc_disk_node+0x94/0x16d
[ 93.291811] [] alloc_disk+0x11/0x13
[ 93.306157] [] loop_alloc+0xa7/0x180
[ 93.310538] [] loop_init+0x9b/0x1a4
[ 93.324909] [] ? loop_init+0x0/0x1a4
[ 93.329650] [] do_one_initcall+0x57/0x136
[ 93.345197] [] kernel_init+0x184/0x20e
[ 93.348146] [] kernel_thread_helper+0x4/0x10
[ 93.365194] [] ? restore_args+0x0/0x30
[ 93.369305] [] ? kernel_init+0x0/0x20e
[ 93.386011] [] ? kernel_thread_helper+0x0/0x10
[ 93.392047] loop: out of memory
...Try to assign per_cpu(numa_node) early
[akpm@linux-foundation.org: tidy up code comment]
Signed-off-by: Yinghai
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: "H. Peter Anvin"
Cc: Tejun Heo
Cc: Denys Vlasenko
Acked-by: Lee Schermerhorn
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Simply add a proper ID into the device table.
Signed-off-by: Anton Vorontsov
Cc: Doug Thompson
Cc: Peter Tyser
Cc: Dave Jiang
Cc: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Since commit 5753c082f66eca5be81f6bda85c1718c5eea6ada ("powerpc/85xx:
Kconfig cleanup"), there is no MPC85xx Kconfig symbol anymore, so the
driver became non-selectable.This patch fixes the issue by switching to PPC_85xx symbol.
Signed-off-by: Anton Vorontsov
Cc: Doug Thompson
Cc: Peter Tyser
Cc: Dave Jiang
Cc: Kumar Gala
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We need lock_page_nosync() here because we have no reference to the
mapping when taking the page lock.Signed-off-by: Nick Piggin
Reviewed-by: Johannes Weiner
Cc: Mel Gorman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The last change to improve the scalability moved the actual wake-up out of
the section that is protected by spin_lock(sma->sem_perm.lock).This means that IN_WAKEUP can be in queue.status even when the spinlock is
acquired by the current task. Thus the same loop that is performed when
queue.status is read without the spinlock acquired must be performed when
the spinlock is acquired.Thanks to kamezawa.hiroyu@jp.fujitsu.com for noticing lack of the memory
barrier.Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16255
[akpm@linux-foundation.org: clean up kerneldoc, checkpatch warning and whitespace]
Signed-off-by: Manfred Spraul
Reported-by: Luca Tettamanti
Tested-by: Luca Tettamanti
Reported-by: Christoph Lameter
Cc: Maciej Rutecki
Cc: KAMEZAWA Hiroyuki
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
this fixes a regression since the fbcon rework.
Signed-off-by: Francisco Jerez
Signed-off-by: Ben Skeggs
Signed-off-by: Dave Airlie -
On nv50 it became impossible to attempt a PCI ROM shadow of the VBIOS,
which will break some setups.This patch also removes the different ordering of shadow methods for
pre-nv50 chipsets. The reason for the different ordering was paranoia,
but it should hopefully be OK to try shadowing PRAMIN first.Signed-off-by: Ben Skeggs
Signed-off-by: Dave Airlie -
This fixes a regression caused by b2ea4aa67bfd084834edd070e0a4a47857d6db59
due to the way shared ddc with multiple digital connectors was handled.You generally have two cases where DDC lines are shared:
- HDMI + VGA
- HDMI + DVI-DHDMI + VGA is easy to deal with because you can check the EDID for the
to see if the attached monitor is digital. A shared DDC line with two
digital connectors is more complex. You can't use the hdmi bits in the
EDID since they may not be there with DVIHDMI adapters. In this case
all we can do is check the HPD pins to see which is connected as we have
no way of knowing using the EDID.Reported-by: trapdoor6@gmail.com
Signed-off-by: Alex Deucher
Cc: stable@kernel.org
Signed-off-by: Dave Airlie -
Having both IO-mapping.txt and io-mapping.txt in Documentation/
was confusing and/or bothersome to some people, so rename
IO-mapping.txt to bus-virt-phys-mapping.txt. Also update
Documentation/00-INDEX for both of these files.Signed-off-by: Randy Dunlap
Cc: Kees Bakker
Cc: Keith Packard
20 Jul, 2010
19 commits
-
* git://git.infradead.org/users/cbou/battery-2.6.35:
ds2782_battery: Fix ds2782_get_capacity return value -
The new netpoll code in bridging contains use-after-free bugs
that are non-trivial to fix.This patch fixes this by removing the code that uses skbs after
they're freed.As a consequence, this means that we can no longer call bridge
from the netpoll path, so this patch also removes the controller
function in order to disable netpoll.Signed-off-by: Herbert Xu
Thanks,
Signed-off-by: David S. Miller -
A lot of 945GMs have had stability issues for a long time, this manifested as X hangs, blitter engine hangs, and lots of crashes.
one such report is at:
https://bugs.freedesktop.org/show_bug.cgi?id=20560along with numerous distro bugzillas.
This only took a week of digging and hair ripping to figure out.
Tracked down and tested on a 945GM Lenovo T60,
previously running
x11perf -copypixwin500
or
x11perf -copywinpix500
repeatedly would cause the GPU to wedge within 4 or 5 tries, with random busy bits set.After this patch no hangs were observed.
cc: stable@kernel.org
Signed-off-by: Dave Airlie -
The i915 memory arbiter has a register full of configuration
bits which are currently not defined in the driver header file.Signed-off-by: Keith Packard
cc: stable@kernel.org
Signed-off-by: Dave Airlie -
copy_to_user() returns the number of bytes remaining to be copied, but
we want to return a negative error code. This gets copied to user
space.Signed-off-by: Dan Carpenter
Signed-off-by: Dave Airlie -
If the kzalloc() fails we should return NULL. All the places that call
alloc_apertures() check for this already.Signed-off-by: Dan Carpenter
Acked-by: James Simmons
Acked-by: Marcin Slusarz
Signed-off-by: Dave Airlie -
If kzalloc() fails exit with -ENOMEM.
Signed-off-by: Kulikov Vasiliy
Signed-off-by: Dave Airlie -
Make inclusion of conditional on TTM_HAS_AGP. The use
of the functions declared in it is already conditional.Reported-by: Geert Stappers
Signed-off-by: Ben Hutchings
Tested-by: Geert Stappers
Signed-off-by: Dave Airlie -
* 'shrinker' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/xfsdev:
xfs: track AGs with reclaimable inodes in per-ag radix tree
xfs: convert inode shrinker to per-filesystem contexts
mm: add context argument to shrinker callback -
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: fix checks in BTRFS_IOC_CLONE_RANGE
Btrfs: fix CLONE ioctl destination file size expansion to block boundary
Btrfs: fix split_leaf double split corner case -
https://bugzilla.kernel.org/show_bug.cgi?id=16348
When the filesystem grows to a large number of allocation groups,
the summing of recalimable inodes gets expensive. In many cases,
most AGs won't have any reclaimable inodes and so we are wasting CPU
time aggregating over these AGs. This is particularly important for
the inode shrinker that gets called frequently under memory
pressure.To avoid the overhead, track AGs with reclaimable inodes in the
per-ag radix tree so that we can find all the AGs with reclaimable
inodes via a simple gang tag lookup. This involves setting the tag
when the first reclaimable inode is tracked in the AG, and removing
the tag when the last reclaimable inode is removed from the tree.
Then the summation process becomes a loop walking the radix tree
summing AGs with the reclaim tag set.This significantly reduces the overhead of scanning - a 6400 AG
filesystea now only uses about 25% of a cpu in kswapd while slab
reclaim progresses instead of being permanently stuck at 100% CPU
and making little progress. Clean filesystems filesystems will see
no overhead and the overhead only increases linearly with the number
of dirty AGs.Signed-off-by: Dave Chinner
Reviewed-by: Christoph Hellwig -
Now the shrinker passes us a context, wire up a shrinker context per
filesystem. This allows us to remove the global mount list and the
locking problems that introduced. It also means that a shrinker call
does not need to traverse clean filesystems before finding a
filesystem with reclaimable inodes. This significantly reduces
scanning overhead when lots of filesystems are present.Signed-off-by: Dave Chinner
Reviewed-by: Christoph Hellwig -
1. The BTRFS_IOC_CLONE and BTRFS_IOC_CLONE_RANGE ioctls should check
whether the donor file is append-only before writing to it.2. The BTRFS_IOC_CLONE_RANGE ioctl appears to have an integer
overflow that allows a user to specify an out-of-bounds range to copy
from the source file (if off + len wraps around). I haven't been able
to successfully exploit this, but I'd imagine that a clever attacker
could use this to read things he shouldn't. Even if it's not
exploitable, it couldn't hurt to be safe.Signed-off-by: Dan Rosenberg
cc: stable@kernel.org
Signed-off-by: Chris Mason -
…git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, pci, mrst: Add extra sanity check in walking the PCI extended cap chain
x86: Fix x2apic preenabled system with kexec
x86: Force HPET readback_cmp for all ATI chipsets -
* 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm:
kmemleak: Add support for NO_BOOTMEM configurations
kmemleak: Annotate false positive in init_section_page_cgroup() -
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] cio: fix potential overflow in chpid descriptor
[S390] add missing device put
[S390] dasd: use correct label location for diag fba disks -
- fix reversing of command/sub arguments
- fix a crash if the i2c interface is called before the device is foundSigned-off-by: Sreedhara DS
Signed-off-by: Alan Cox
Signed-off-by: Linus Torvalds -
The CLONE and CLONE_RANGE ioctls round up the range of extents being
cloned to the block size when the range to clone extends to the end of file
(this is always the case with CLONE). It was then using that offset when
extending the destination file's i_size. Fix this by not setting i_size
beyond the originally requested ending offset.This bug was introduced by a22285a6 (2.6.35-rc1).
Signed-off-by: Sage Weil
Signed-off-by: Chris Mason -
split_leaf was not properly balancing leaves when it was forced to
split a leaf twice. This commit adds an extra push left and right
before forcing the double split in hopes of getting the slot where
we want to insert at either the start or end of the leaf.If the extra pushes do work, then we are able to avoid splitting twice
and we keep the tree properly balanced.Signed-off-by: Chris Mason
