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2010-07-22ARM: 6231/1: re-organize the nuc900 lcd arch platform data settingwanzongshun
The patch re-organizes the nuc900 lcd arch platform data, remove the lcd platform data setting from nuc950.c to dev.c It can maximize the share codes between nuc900 series MCUs. Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-21Merge branch 'urgent' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 * 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: pcmcia: fix 'driver ... did not release config properly' warning
2010-07-21Merge branch 'shrinker' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dgc/xfsdev * 'shrinker' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/xfsdev: mm: add context argument to shrinker callback to remaining shrinkers
2010-07-21Merge branch 'fix/asoc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'fix/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ASoC: Select wm_hubs automatically for WM8994 ASoC: Remove duplicate AUX definition from WM8776 ASoC:: remove a redundant snd_soc_unregister_codec call in wm8988_register ASoC: wm8727: add a missing return in wm8727_platform_probe ASoC: fsi: fixup wrong value setting order of TDM ASoC: fsi: fixup clock inversion operation
2010-07-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: math-emu: correct test for downshifting fraction in _FP_FROM_INT() perf: Add DWARF register lookup for sparc MAINTAINERS: Add SBUS driver path to sparc entry. drivers/sbus: Remove unnecessary casts of private_data sparc: remove homegrown L1_CACHE_ALIGN macro sparc64: fix the build error due to smp_kgdb_capture_client() sparc64: Fix maybe_change_configuration() PCR setting. arch/sparc/kernel: Eliminate what looks like a NULL pointer dereference sparc64: Update defconfig. sunsu: Fix use after free in su_remove(). sunserial: Don't call add_preferred_console() when console= is specified. sparc32: Kill none_mask, it's bogus.
2010-07-21Fix up trivial spelling errors ('taht' -> 'that')Linus Torvalds
Pointed out by Lucas who found the new one in a comment in setup_percpu.c. And then I fixed the others that I grepped for. Reported-by: Lucas <canolucas@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-21pcmcia: fix 'driver ... did not release config properly' warningPatrick McHardy
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 <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-07-21mm: add context argument to shrinker callback to remaining shrinkersDave Chinner
Add the shrinkers missed in the first conversion of the API in commit 7f8275d0d660c146de6ee3017e1e2e594c49e820 ("mm: add context argument to shrinker callback"). Signed-off-by: Dave Chinner <dchinner@redhat.com>
2010-07-20math-emu: correct test for downshifting fraction in _FP_FROM_INT()Mikael Pettersson
The kernel's math-emu code contains a macro _FP_FROM_INT() which is used to convert an integer to a raw normalized floating-point value. It does this basically in three steps: 1. Compute the exponent from the number of leading zero bits. 2. Downshift large fractions to put the MSB in the right position for normalized fractions. 3. Upshift small fractions to put the MSB in the right position. There is an boundary error in step 2, causing a fraction with its MSB exactly one bit above the normalized MSB position to not be downshifted. This results in a non-normalized raw float, which when packed becomes a massively inaccurate representation for that input. The impact of this depends on a number of arch-specific factors, but it is known to have broken emulation of FXTOD instructions on UltraSPARC III, which was originally reported as GCC bug 44631 <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44631>. Any arch which uses math-emu to emulate conversions from integers to same-size floats may be affected. The fix is simple: the exponent comparison used to determine if the fraction should be downshifted must be "<=" not "<". I'm sending a kernel module to test this as a reply to this message. There are also SPARC user-space test cases in the GCC bug entry. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-20Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * '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
2010-07-21drm/r600: fix possible NULL pointer derefernceAlex Deucher
Reported-by: Alexander Y. Fomichev <git.user@gmail.com> Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-21drm/radeon/kms: add quirk for ASUS HD 3600 boardAlex Deucher
Connector is actually DVI rather than HDMI. Reported-by: trapDoor <trapdoor6@gmail.com> Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-21include/linux/vgaarb.h: add missing part of include guardDoug Goldstein
vgaarb.h was missing the #define of the #ifndef at the top for the guard to prevent multiple #include's from causing re-define errors Signed-off-by: Doug Goldstein <cardoe@gentoo.org> Cc: Dave Airlie <airlied@redhat.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * '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
2010-07-20Merge branch 'linuxdocs' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs * 'linuxdocs' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs: documentation: fix almost duplicate filenames (IO/io-mapping.txt)
2010-07-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* 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 ...
2010-07-20vfs: fix RCU-lockdep false positive due to /procPaul E. McKenney
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 <miles.lane@gmail.com> Located-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-20sdhci-s3c: add missing remove functionMarek Szyprowski
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 <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-20Andres has movedAndres Salomon
My Collabora address is no longer enabled - update the MODULE_AUTHOR fields of drivers to my current email address. Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-20x86,nobootmem: make alloc_bootmem_node fall back to other node when 32bit ↵Yinghai Lu
numa is used 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: [<c2c8cff1>] __alloc_memory_core_early+0x147/0x1d6 [ 0.000000] *pdpt = 0000000000000000 *pde = f000ff53f000ff00 ... [ 0.000000] Call Trace: [ 0.000000] [<c2c8b4f8>] ? __alloc_bootmem_node+0x216/0x22f [ 0.000000] [<c2c90c9b>] ? sparse_early_usemaps_alloc_node+0x5a/0x10b [ 0.000000] [<c2c9149e>] ? sparse_init+0x1dc/0x499 [ 0.000000] [<c2c79118>] ? paging_init+0x168/0x1df [ 0.000000] [<c2c780ff>] ? native_pagetable_setup_start+0xef/0x1bb looks like it allocates too much high address for bootmem. Try to cut limit with get_max_mapped() Reported-by: Borislav Petkov <borislav.petkov@amd.com> Tested-by: Conny Seidel <conny.seidel@amd.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: <stable@kernel.org> [2.6.34.x] Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> 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>
2010-07-20x86, numa: fix boot without RAM on node0 againYinghai Lu
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] [<ffffffff81125e43>] pcpu_alloc+0x83a/0x8e7 [ 93.270710] [<ffffffff81125f15>] __alloc_percpu+0x10/0x12 [ 93.285849] [<ffffffff8140786c>] alloc_disk_node+0x94/0x16d [ 93.291811] [<ffffffff81407956>] alloc_disk+0x11/0x13 [ 93.306157] [<ffffffff81503e51>] loop_alloc+0xa7/0x180 [ 93.310538] [<ffffffff8277ef48>] loop_init+0x9b/0x1a4 [ 93.324909] [<ffffffff8277eead>] ? loop_init+0x0/0x1a4 [ 93.329650] [<ffffffff810001f2>] do_one_initcall+0x57/0x136 [ 93.345197] [<ffffffff827486d0>] kernel_init+0x184/0x20e [ 93.348146] [<ffffffff81034954>] kernel_thread_helper+0x4/0x10 [ 93.365194] [<ffffffff81c7cc3c>] ? restore_args+0x0/0x30 [ 93.369305] [<ffffffff8274854c>] ? kernel_init+0x0/0x20e [ 93.386011] [<ffffffff81034950>] ? 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 <yinghai@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Tejun Heo <tj@kernel.org> Cc: Denys Vlasenko <vda.linux@googlemail.com> Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-20edac: mpc85xx: add support for MPC8569 EDAC controllersAnton Vorontsov
Simply add a proper ID into the device table. Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Cc: Doug Thompson <dougthompson@xmission.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Dave Jiang <djiang@mvista.com> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-20edac: mpc85xx: fix MPC85xx dependencyAnton Vorontsov
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 <avorontsov@mvista.com> Cc: Doug Thompson <dougthompson@xmission.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Dave Jiang <djiang@mvista.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-20mm/vmscan.c: fix mapping use after freeNick Piggin
We need lock_page_nosync() here because we have no reference to the mapping when taking the page lock. Signed-off-by: Nick Piggin <npiggin@suse.de> Reviewed-by: Johannes Weiner <hannes@cmpxchg.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>
2010-07-20ipc/sem.c: bugfix for semop() not reporting successful operationManfred Spraul
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 <manfred@colorfullife.com> Reported-by: Luca Tettamanti <kronos.it@gmail.com> Tested-by: Luca Tettamanti <kronos.it@gmail.com> Reported-by: Christoph Lameter <cl@linux-foundation.org> Cc: Maciej Rutecki <maciej.rutecki@gmail.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-21drm/nouveau: Fix crashes during fbcon init on single head cards.Francisco Jerez
this fixes a regression since the fbcon rework. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-21drm/nouveau: fix pcirom vbios shadow breakage from acpi rom patchBen Skeggs
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 <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-21drm/radeon/kms: fix shared ddc harderAlex Deucher
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-D HDMI + 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 DVI<->HDMI 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 <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-20documentation: fix almost duplicate filenames (IO/io-mapping.txt)Randy Dunlap
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 <randy.dunlap@oracle.com> Cc: Kees Bakker <kees.bakker@xs4all.nl> Cc: Keith Packard <keithp@keithp.com>
2010-07-20Merge git://git.infradead.org/users/cbou/battery-2.6.35Linus Torvalds
* git://git.infradead.org/users/cbou/battery-2.6.35: ds2782_battery: Fix ds2782_get_capacity return value
2010-07-20ASoC: Select wm_hubs automatically for WM8994Chanwoo Choi
Otherwise all machine drivers need to do so. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-07-19bridge: Partially disable netpoll supportHerbert Xu
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 <herbert@gondor.apana.org.au> Thanks, Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-20drm/i915: enable low power render writes on GEN3 hardware.Dave Airlie
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=20560 along 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 <airlied@redhat.com>
2010-07-20drm/i915: Define MI_ARB_STATE bitsKeith Packard
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 <keithp@keithp.com> cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-20vmwgfx: return -EFAULT if copy_to_user failsDan Carpenter
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 <error27@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-20fb: handle allocation failure in alloc_apertures()Dan Carpenter
If the kzalloc() fails we should return NULL. All the places that call alloc_apertures() check for this already. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: James Simmons <jsimmons@infradead.org> Acked-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-20drm: radeon: check kzalloc() resultKulikov Vasiliy
If kzalloc() fails exit with -ENOMEM. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-20drm/ttm: Fix build on architectures without AGPBen Hutchings
Make inclusion of <asm/agp.h> conditional on TTM_HAS_AGP. The use of the functions declared in it is already conditional. Reported-by: Geert Stappers <stappers@stappers.nl> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Tested-by: Geert Stappers <stappers@stappers.nl> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-19Merge branch 'shrinker' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dgc/xfsdev * '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
2010-07-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds
* 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
2010-07-20xfs: track AGs with reclaimable inodes in per-ag radix treeDave Chinner
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 <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-07-20xfs: convert inode shrinker to per-filesystem contextsDave Chinner
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 <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-07-19Btrfs: fix checks in BTRFS_IOC_CLONE_RANGEDan Rosenberg
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 <dan.j.rosenberg@gmail.com> cc: stable@kernel.org Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-07-19Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/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
2010-07-19Merge branch 'kmemleak' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm * '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()
2010-07-19Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* '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
2010-07-19intel_scu_ipc: Oops/crash fixesSreedhara DS
- fix reversing of command/sub arguments - fix a crash if the i2c interface is called before the device is found Signed-off-by: Sreedhara DS <sreedhara.ds@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-19Btrfs: fix CLONE ioctl destination file size expansion to block boundarySage Weil
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 <sage@newdream.net> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-07-19Btrfs: fix split_leaf double split corner caseChris 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 <chris.mason@oracle.com>
2010-07-19tcp: fix crash in tcp_xmit_retransmit_queueIlpo Järvinen
It can happen that there are no packets in queue while calling tcp_xmit_retransmit_queue(). tcp_write_queue_head() then returns NULL and that gets deref'ed to get sacked into a local var. There is no work to do if no packets are outstanding so we just exit early. This oops was introduced by 08ebd1721ab8fd (tcp: remove tp->lost_out guard to make joining diff nicer). Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Reported-by: Lennart Schulte <lennart.schulte@nets.rwth-aachen.de> Tested-by: Lennart Schulte <lennart.schulte@nets.rwth-aachen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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