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2010-01-30Bluetooth: Redo checks in IRQ handler for shared IRQ supportMike Frysinger
Commit ac019360fe3 changed the irq handler logic to BUG_ON rather than returning IRQ_NONE when the incoming argument is invalid. While this works in most cases, it doesn't work when the IRQ is shared with other devices (or when DEBUG_SHIRQ is enabled). So revert the previous change and replace the warning message with a comment explaining that we want this behavior. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-01-30Bluetooth: Fix memory leak in L2CAPAndrei Emeltchenko
Move skb_clone after error confition check so it is not going potentially out of the scope. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com> Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-01-30Bluetooth: Remove double free of SKB pointer in L2CAPAndrei Emeltchenko
Trivial fix for double free of SKB pointer with kfree_skb to make code simplier and cleaner. Remove unused variable err. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com> Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-01-28bonding: bond_open error return valuestephen hemminger
The convention for API functions in kernel is to return errno value; bond_open would return -1 if alb setup failed. The only reason that could happen is if kmalloc() failed. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-28ixgbe: if ixgbe_copy_dcb_cfg is going to fail learn about it earlyJohn Fastabend
Call ixgbe_copy_dcb_cfg() earlier in the ixgbe_dcbnl_set_all() so that we can learn if this is going to fail as early as possible. Previously, ixgbe_down or ixgbe_close were being called before this check and the IXGBE_RESETTING bit was being set and cleared. Worse if this failed the corresponding ixgbe_up/ndo_open would not called. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-28ixgbe: set the correct DCB bit for pg tx settingsJohn Fastabend
Set the correct bit BIT_PG_TX when tx PG settings are set. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-28igbvf: fix issue w/ mapped_as_page being left set after unmapAlexander Duyck
This change fixes an issue in igbvf with mapped_as_page being left set after a page is unmapped which results in buffers which are mapped via map single being unmapped as page. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-28drivers/net: ks8851_mll ethernet network driverChoi, David
Hello David Miller, I fix a bug in ks8851_mll driver, which has existed since 2.6.32-rc6. >From : David J. Choi <david.choi@micrel.com> Fix a bug that the data pointers in the interrupt handler are set wrong, which is related with the 5th parameter of request_irq(). Signed-off-by : David J. Choi <david.choi@micrel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-28be2net: Bug fix to support newer generation of BE ASICAjit Khaparde
Bug fix in be2net for newer generation of BladeEngine ASIC. Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-28Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2010-01-26starfire: clean up properly if firmware loading failsBen Hutchings
netdev_open() will return without cleaning up net device or hardware state if firmware loading fails. This results in a BUG() on a second attempt to bring the interface up, reported in <http://bugzilla.kernel.org/show_bug.cgi?id=15091>, and probably has even worse effects if the driver is removed afterwards. Call netdev_close() to clean up on failure. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=15091 Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Reported-by: Michael Moffatt <michael@moffatt.org.nz> Tested-by: Michael Moffatt <michael@moffatt.org.nz> Cc: "David S. Miller" <davem@davemloft.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-26mac80211: fix NULL pointer dereference when ftrace is enabledZhu Yi
I got below kernel oops when I try to bring down the network interface if ftrace is enabled. The root cause is drv_ampdu_action() is passed with a NULL ssn pointer in the BA session tear down case. We need to check and avoid dereferencing it in trace entry assignment. BUG: unable to handle kernel NULL pointer dereference Modules linked in: at (null) IP: [<f98fe02a>] ftrace_raw_event_drv_ampdu_action+0x10a/0x160 [mac80211] *pde = 00000000 Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [...] Call Trace: [<f98fdf20>] ? ftrace_raw_event_drv_ampdu_action+0x0/0x160 [mac80211] [<f98dac4c>] ? __ieee80211_stop_rx_ba_session+0xfc/0x220 [mac80211] [<f98d97fb>] ? ieee80211_sta_tear_down_BA_sessions+0x3b/0x50 [mac80211] [<f98dc6f6>] ? ieee80211_set_disassoc+0xe6/0x230 [mac80211] [<f98dc6ac>] ? ieee80211_set_disassoc+0x9c/0x230 [mac80211] [<f98dcbb8>] ? ieee80211_mgd_deauth+0x158/0x170 [mac80211] [<f98e4bdb>] ? ieee80211_deauth+0x1b/0x20 [mac80211] [<f8987f49>] ? __cfg80211_mlme_deauth+0xe9/0x120 [cfg80211] [<f898b870>] ? __cfg80211_disconnect+0x170/0x1d0 [cfg80211] Cc: Johannes Berg <johannes@sipsolutions.net> Cc: stable@kernel.org Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-26ipv6: conntrack: Add member of user to nf_ct_frag6_queue structureShan Wei
The commit 0b5ccb2(title:ipv6: reassembly: use seperate reassembly queues for conntrack and local delivery) has broken the saddr&&daddr member of nf_ct_frag6_queue when creating new queue. And then hash value generated by nf_hashfn() was not equal with that generated by fq_find(). So, a new received fragment can't be inserted to right queue. The patch fixes the bug with adding member of user to nf_ct_frag6_queue structure. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25virtio_net: Make delayed refill more reliableHerbert Xu
I have seen RX stalls on a machine that experienced a suspected OOM. After the stall, the RX buffer is empty on the guest side and there are exactly 16 entries available on the host side. As the number of entries is less than that required by a maximal skb, the host cannot proceed. The guest did not have a refill job scheduled. My diagnosis is that an OOM had occured, with the delayed refill job scheduled. The job was able to allocate at least one skb, but not enough to overcome the minimum required by the host to proceed. As the refill job would only reschedule itself if it failed completely to allocate any skbs, this would lead to an RX stall. The following patch removes this stall possibility by always rescheduling the refill job until the ring is totally refilled. Testing has shown that the RX stall no longer occurs whereas previously it would occur within a day. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25sfc: Use fixed-size buffers for MCDI NVRAM requestsBen Hutchings
The low-level MCDI code always uses 32-bit MMIO operations, and callers must pad input and output buffers to multiples of 4 bytes. The MCDI NVRAM functions are not doing this. Also, their buffers are declared as variable-length arrays with no explicit maximum length. Switch to a fixed buffer size based on the chunk size used by the MTD driver (which is a multiple of 4). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25sfc: Add workspace for GMAC bug workaround to MCDI MAC_STATS bufferGuido Barzini
Due to a hardware bug in the SFC9000 family, the firmware must transfer raw GMAC statistics to host memory before aggregating them into the cooked (speed-independent) MAC statistics. Extend the stats buffer to support this. The length of the buffer is explicit in the MAC_STATS command, so this change is backward-compatible on both sides. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25tcp_probe: avoid modulus operation and wrap fixStephen Hemminger
By rounding up the buffer size to power of 2, several expensive modulus operations can be avoided. This patch also solves a bug where the gap need when ring gets full was not being accounted for. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25qlge: Only free resources if they were allocatedBreno Leitao
Currently qlge tries to release regions even if they were not allocated. This causes messages like the following in the kernel log Trying to free nonexistent resource <00000000006af400-00000000006af4ff> Trying to free nonexistent resource <00003c04ff9f4000-00003c04ff9f7fff> Trying to free nonexistent resource <00003c04ffc00000-00003c04ffcfffff> This patch fixes the goto logic in order to not release the resources if they were not allocated. Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25ath9k: fix eeprom INI values override for 2GHz-only cardsFelix Fietkau
Among other changes, this commit: commit 06d0f0663e11cab4ec5f2c143a118d71a12fbbe9 Author: Sujith <Sujith.Manoharan@atheros.com> Date: Thu Feb 12 10:06:45 2009 +0530 ath9k: Enable Fractional N mode changed the hw attach code to fix up initialization values only for dual band devices, however the commit message did not give a reason as to why this would be useful or necessary. According to tests by Jorge Boncompte, this breaks at least some 2GHz-only cards, so the code should be changed back to the unconditional INI fixup. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Reported-by: Jorge Boncompte <jorge@dti2.net> Cc: stable@kernel.org Tested-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-25iwlwifi: fix pointer signedness warningJohannes Berg
There are a few station addresses that are char *, instead of the normal u8 *; gcc gives pointer signedness warnings for some of those, so use u8 * consistently. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-24netns xfrm: deal with dst entries in netnsAlexey Dobriyan
GC is non-existent in netns, so after you hit GC threshold, no new dst entries will be created until someone triggers cleanup in init_net. Make xfrm4_dst_ops and xfrm6_dst_ops per-netns. This is not done in a generic way, because it woule waste (AF_MAX - 2) * sizeof(struct dst_ops) bytes per-netns. Reorder GC threshold initialization so it'd be done before registering XFRM policies. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-24sky2: revert config space changestephen hemminger
Obviously, this register had some other impact that is causing the regression. Either it is masking some other access or needs to be reset in some path. Either, way it is best to just revert the change for 2.6.33 This reverts commit 166a0fd4c788ec7f10ca8194ec6d526afa12db75. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-24vlan: fix vlan_skb_recv()Eric Dumazet
Bruno Prémont found commit 9793241fe92f7d930 (vlan: Precise RX stats accounting) added a regression for non hw accelerated vlans. [ 26.390576] BUG: unable to handle kernel NULL pointer dereference at (null) [ 26.396369] IP: [<df856b89>] vlan_skb_recv+0x89/0x280 [8021q] vlan_dev_info() was used with original device, instead of skb->dev. Also spotted by Américo Wang. Reported-By: Bruno Prémont <bonbons@linux-vserver.org> Tested-By: Bruno Prémont <bonbons@linux-vserver.org> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23netns xfrm: fix "ip xfrm state|policy count" misreportAlexey Dobriyan
"ip xfrm state|policy count" report SA/SP count from init_net, not from netns of caller process. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23sky2: Enable/disable WOL per hardware deviceMike McCormack
Y2_HW_WOL_ON/Y2_HW_WOL_OFF should be set and cleared per chip, not per port. On dual port cards, Y2_HW_WOL_ON should be enabled if either sky2 port has WOL enabled. Found while reviewing code for a WOL regression, though this is probably not the cause of the regression. Signed-off-by: Mike McCormack <mikem@ring3k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23net: Fix IPv6 GSO type checks in Intel ethernet driversSridhar Samudrala
Found this problem when testing IPv6 from a KVM guest to a remote host via e1000e device on the host. The following patch fixes the check for IPv6 GSO packet in Intel ethernet drivers to use skb_is_gso_v6(). SKB_GSO_DODGY is also set when packets are forwarded from a guest. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23igb/igbvf: cleanup exception handling in tx_map_advAlexander Duyck
After removing the skb_dma_map/unmap calls the exception handling in igb_tx_map_adv is not correct. The issue is that the count value was not being correctly handled so as a result we were not rewinding the ring as back as we should have been. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23MAINTAINERS: Add Intel igbvf maintainerJeff Kirsher
Add igbvf to the list of supported Intel drivers and Alex to the list of maintainers. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23e1000/e1000e: don't use small hardware rx buffersJesse Brandeburg
When testing the "e1000: enhance frame fragment detection" (and e1000e) patches we found some bugs with reducing the MTU size. The 1024 byte descriptor used with the 1000 mtu test also (re) introduced the (originally) reported bug, and causes us to need the e1000_clean_tx_irq "enhance frame fragment detection" fix. So what has occured here is that 2.6.32 is only vulnerable for mtu < 1500 due to the jumbo specific routines in both e1000 and e1000e. So, 2.6.32 needs the 2kB buffer len fix for those smaller MTUs, but is not vulnerable to the original issue reported. It has been pointed out that this vulnerability needs to be patched in older kernels that don't have the e1000 jumbo routine. Without the jumbo routines, we need the "enhance frame fragment detection" fix the e1000, old e1000e is only vulnerable for < 1500 mtu, and needs a similar fix. We split the patches up to provide easy backport paths. There is only a slight bit of extra code when this fix and the original "enhance frame fragment detection" fixes are applied, so please apply both, even though it is a bit of overkill. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23fmvj18x_cs: add new id (Panasonic lan & modem card)Ken Kawasaki
fmvj18x_cs, serial_cs: add new id Panasonic lan & modem card (model name:AL-VML101) Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23be2net: swap only first 2 fields of mcc_wrbSathya Perla
Only the first two fields of mcc wrb - embedded, payload_len need to be cpu_to_le32() swapped while issuing a cmd to the hw. The fields tag0, tag1 are opaque and returned back to cpu as is... Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23Please add support for Microsoft MN-120 PCMCIA network cardRon Murray
Please add support for Microsoft MN-120 PCMCIA network card. It's an old card, I know, but adding support is very easy. You just need to get tulip_core.c to recognise its vendor/device ID. Patch for kernel 2.6.32.4 (and many previous) attached. .....Ron Murray Signed-off-by: Ron Murray <rjmx@rjmx.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23Merge branch 'linux-2.6.33.y' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/inaky/wimax
2010-01-22Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller
2010-01-21be2net: fix bug in rx page postingSathya Perla
Pages are posted to the rxq in such a way that more than one frag can share the page. The last frag that uses the page unmaps the page. In the case when a page is not fully used (due to lack of space in rxq) the last frag that uses the page is not being set as a "last_page_user"; instead, the next frag in the rxq is incorrectly being set. The fix has also been tested on ppc64 with 64k pages... Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-21wimax/i2400m: Add support for more i6x50 SKUsInaky Perez-Gonzalez
The Intel WiMax Wireless Link 6050 can show under more than one USB ID. Add support for all, introducing a generic flag (i2400mu->i6050) that denotes a 6x50 based device. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
2010-01-21Linux 2.6.33-rc5Linus Torvalds
2010-01-21Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: x86: Add support for the ANY bit perf: Change the is_software_event() definition perf: Honour event state for aux stream data perf: Fix perf_event_do_pending() fallback callsite perf kmem: Print usage help for unknown commands perf kmem: Increase "Hit" column length hw-breakpoints, perf: Fix broken mmiotrace due to dr6 by reference change perf timechart: Use tid not pid for COMM change
2010-01-21Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Reassign prev and switch_count when reacquire_kernel_lock() fail sched: Fix vmark regression on big machines
2010-01-21Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata: retry FS IOs even if it has failed with AC_ERR_INVALID
2010-01-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: tty: fix race in tty_fasync serial: serial_cs: oxsemi quirk breaks resume serial: imx: bit &/| confusion serial: Fix crash if the minimum rate of the device is > 9600 baud serial-core: resume serial hardware with no_console_suspend serial: 8250_pnp: use wildcard for serial Wacom tablets nozomi: quick fix for the close/close bug compat_ioctl: Supress "unknown cmd" message on serial /dev/console
2010-01-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: hv: fix smp problems in the hyperv core code Staging: et131x: Fix 2.6.33rc1 regression in et131x Staging: asus_oled: fix oops in 2.6.32.2
2010-01-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: Revert "sysdev: fix prototype for memory_sysdev_class show/store functions" driver-core: fix devtmpfs crash on s390
2010-01-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: isp1362: fix build failure on ARM systems via irq_flags cleanup USB: isp1362: better 64bit printf warning fixes USB: fix usbstorage for 2770:915d delivers no FAT USB: Fix level of isp1760 Reloading ptd error message USB: FHCI: avoid NULL pointer dereference USB: Fix duplicate sysfs problem after device reset. USB: add speed values for USB 3.0 and wireless controllers USB: add missing delay during remote wakeup USB: EHCI & UHCI: fix race between root-hub suspend and port resume USB: EHCI: fix handling of unusual interrupt intervals USB: Don't use GFP_KERNEL while we cannot reset a storage device USB: fix bitmask merge error usb: serial: fix memory leak in generic driver USB: serial: fix USB serial fix kfifo_len locking
2010-01-21Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: fs/bio.c: fix shadows sparse warning drbd: The kernel code is now equivalent to out of tree release 8.3.7 drbd: Allow online resizing of DRBD devices while peer not reachable (needs to be explicitly forced) drbd: Don't go into StandAlone mode when authentification failes because of network error drivers/block/drbd/drbd_receiver.c: correct NULL test cfq-iosched: Respect ioprio_class when preempting genhd: overlapping variable definition block: removed unused as_io_context DM: Fix device mapper topology stacking block: bdev_stack_limits wrapper block: Fix discard alignment calculation and printing block: Correct handling of bottom device misaligment drbd: check on CONFIG_LBDAF, not LBD drivers/block/drbd: Correct NULL test drbd: Silenced an assert that could triggered after changing write ordering method drbd: Kconfig fix drbd: Fix for a race between IO and a detach operation [Bugz 262] drbd: Use drbd_crypto_is_hash() instead of an open coded check
2010-01-21Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (23 commits) ACPI: delete acpi_processor_power_verify_c2() ACPI: allow C3 > 1000usec ACPI: enable C2 and Turbo-mode on Nehalem notebooks on A/C ACPI: power_meter: remove double kfree() ACPI: processor: restrict early _PDC to opt-in platforms ACPI: Fix unused variable warning in sbs.c acpi: make ACPI device id constant sony-laptop - fix using of uninitialized variable ACPI: Fix section mismatch error for acpi_early_processor_set_pdc() eeepc-laptop: disable wireless hotplug for 1201N eeepc-laptop: add hotplug_disable parameter eeepc-laptop: switch to using sparse keymap library eeepc-laptop: dmi blacklist to disable pci hotplug code eeepc-laptop: disable cpu speed control on EeePC 701 ACPI: don't cond_resched if irq is disabled ACPI: Remove unnecessary cast. ACPI: Advertise to BIOS in _OSC: _OST on _PPC changes ACPI: EC: Add wait for irq storm ACPI: SBS: Move SBS HC callback to faster Notify queue x86, ACPI: delete acpi_boot_table_init() return value ...
2010-01-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6: ecryptfs: use after free ecryptfs: Eliminate useless code ecryptfs: fix interpose/interpolate typos in comments ecryptfs: pass matching flags to interpose as defined and used there ecryptfs: remove unnecessary d_drop calls in ecryptfs_link ecryptfs: don't ignore return value from lock_rename ecryptfs: initialize private persistent file before dereferencing pointer eCryptfs: Remove mmap from directory operations eCryptfs: Add getattr function eCryptfs: Use notify_change for truncating lower inodes
2010-01-21Merge 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 possible panic on unmount Btrfs: deal with NULL acl sent to btrfs_set_acl Btrfs: fix regression in orphan cleanup Btrfs: Fix race in btrfs_mark_extent_written Btrfs, fix memory leaks in error paths Btrfs: align offsets for btrfs_ordered_update_i_size btrfs: fix missing last-entry in readdir(3)
2010-01-21vmalloc: remove BUG_ON due to racy counting of VM_LAZY_FREEYongseok Koh
In free_unmap_area_noflush(), va->flags is marked as VM_LAZY_FREE first, and then vmap_lazy_nr is increased atomically. But, in __purge_vmap_area_lazy(), while traversing of vmap_are_list, nr is counted by checking VM_LAZY_FREE is set to va->flags. After counting the variable nr, kernel reads vmap_lazy_nr atomically and checks a BUG_ON condition whether nr is greater than vmap_lazy_nr to prevent vmap_lazy_nr from being negative. The problem is that, if interrupted right after marking VM_LAZY_FREE, increment of vmap_lazy_nr can be delayed. Consequently, BUG_ON condition can be met because nr is counted more than vmap_lazy_nr. It is highly probable when vmalloc/vfree are called frequently. This scenario have been verified by adding delay between marking VM_LAZY_FREE and increasing vmap_lazy_nr in free_unmap_area_noflush(). Even the vmap_lazy_nr is for checking high watermark, it never be the strict watermark. Although the BUG_ON condition is to prevent vmap_lazy_nr from being negative, vmap_lazy_nr is signed variable. So, it could go down to negative value temporarily. Consequently, removing the BUG_ON condition is proper. A possible BUG_ON message is like the below. kernel BUG at mm/vmalloc.c:517! invalid opcode: 0000 [#1] SMP EIP: 0060:[<c04824a4>] EFLAGS: 00010297 CPU: 3 EIP is at __purge_vmap_area_lazy+0x144/0x150 EAX: ee8a8818 EBX: c08e77d4 ECX: e7c7ae40 EDX: c08e77ec ESI: 000081fe EDI: e7c7ae60 EBP: e7c7ae64 ESP: e7c7ae3c DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Call Trace: [<c0482ad9>] free_unmap_vmap_area_noflush+0x69/0x70 [<c0482b02>] remove_vm_area+0x22/0x70 [<c0482c15>] __vunmap+0x45/0xe0 [<c04831ec>] vmalloc+0x2c/0x30 Code: 8d 59 e0 eb 04 66 90 89 cb 89 d0 e8 87 fe ff ff 8b 43 20 89 da 8d 48 e0 8d 43 20 3b 04 24 75 e7 fe 05 a8 a5 a3 c0 e9 78 ff ff ff <0f> 0b eb fe 90 8d b4 26 00 00 00 00 56 89 c6 b8 ac a5 a3 c0 31 EIP: [<c04824a4>] __purge_vmap_area_lazy+0x144/0x150 SS:ESP 0068:e7c7ae3c [ See also http://marc.info/?l=linux-kernel&m=126335856228090&w=2 ] Signed-off-by: Yongseok Koh <yongseok.koh@samsung.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-21Merge branch 'sh/for-2.6.33' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh64: wire up sys_accept4. sh: unwire sys_recvmmsg. sh: ms7724: Correct sh-eth EEPROM polling timeout.
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