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2012-02-15btrfs: Sector Size check during MountKeith Mannthey
Gracefully fail when trying to mount a BTRFS file system that has a sectorsize smaller than PAGE_SIZE. On PPC it is possible to build a FS while using a 4k PAGE_SIZE kernel then boot into a 64K PAGE_SIZE kernel. Presently open_ctree fails in an endless loop and hangs the machine in this situation. My debugging has show this Sector size < Page size to be a non trivial situation and a graceful exit from the situation would be nice for the time being. Signed-off-by: Keith Mannthey <kmannth@us.ibm.com>
2012-02-15[media] hdpvr: update picture controls to support firmware versions > 0.15Taylor Ralph
Correctly sets the max/min/default values for the hdpvr picture controls. The reason the current values didn't cause a problem until now is because any firmware <= 0.15 didn't support them. The latest firmware releases properly support picture controls and the values in the patch are derived from the windows driver using SniffUSB2.0. Thanks to Devin Heitmueller for helping me. Signed-off-by: Taylor Ralph <tralph@mythtv.org> Thanks-to: Devin Heitmueller <dheitmueller@kernellabs.com> Acked-by: Jarod Wilson <jarod@redhat.com> Reviewed-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-02-15[media] wl128x: fix build errors when GPIOLIB is not enabledRandy Dunlap
From: Randy Dunlap <rdunlap@xenotime.net> Fix wl128x Kconfig to depend on GPIOLIB since TI_ST also depends on GPIOLIB. (.text+0xe6d60): undefined reference to `st_register' (.text+0xe7016): undefined reference to `st_unregister' (.text+0xe70ce): undefined reference to `st_unregister' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Manjunatha Halli <manjunatha_halli@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-02-15ALSA: usb-audio: avoid integer overflow in create_fixed_stream_quirk()Xi Wang
A malicious USB device could feed in a large nr_rates value. This would cause the subsequent call to kmemdup() to allocate a smaller buffer than expected, leading to out-of-bounds access. This patch validates the nr_rates value and reuses the limit introduced in commit 4fa0e81b ("ALSA: usb-audio: fix possible hang and overflow in parse_uac2_sample_rate_range()"). Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-15ARM: 7324/1: modpost: Fix section warnings for ARM for many compilersTony Lindgren
It turns out that many compilers don't show section warnings on ARM currently because handling for ARM_CALL relocs are missing from modpost.c. Based on commit c2e26114 ([ARM] 3205/1: Handle new EABI relocations when loading kernel modules) it seems that R_ARM_PC24, R_ARM_CALL and R_ARM_JUMP24 can be handled the same way. Note that at least Debian libc6-dev is missing defines for both R_ARM_CALL and R_ARM_JUMP24 in /usr/include/elf.h. So for now we need to define them in modpost.c if not defined. Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Anders Kaseorg <andersk@ksplice.com> Cc: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-15ARM: 7323/1: Do not allow ARM_LPAE on pre-ARMv7 architecturesCatalin Marinas
This patch expands the Kconfig dependencies for ARM_LPAE to not allow enabling when architectures other than ARMv7 are built into the kernel. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-14Kbuild: Use dtc's -d (dependency) optionStephen Warren
This hooks dtc into Kbuild's dependency system. Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous lack of this feature recently caused me to have very confusing "git bisect" results. For ARM, it's obvious what to add to $(targets). I'm not familiar enough with other architectures to know what to add there. Powerpc appears to already add various .dtb files into $(targets), but the other archs may need something added to $(targets) to work. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Mark Salter <msalter@redhat.com>
2012-02-14Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator One small bug fix from Axel plus a fix for a build failure in unrealistic but commonly built configs which for some reason manage to survive for an awfully long time in -next without any reports. * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: Fix getting voltage in max8649_enable_time() regulator: Fix mc13xxx regulator modular build (again)
2012-02-14Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Quoth BenH: "Here are a few powerpc fixes for 3.3, all pretty trivial. I also added the patch to define GET_IP/SET_IP so we can use some more asm-generic goodness." * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/pseries/eeh: Fix crash when error happens during device probe powerpc/pseries: Fix partition migration hang in stop_topology_update powerpc/powernv: Disable interrupts while taking phb->lock powerpc: Fix WARN_ON in decrementer_check_overflow powerpc/wsp: Fix IRQ affinity setting powerpc: Implement GET_IP/SET_IP powerpc/wsp: Permanently enable PCI class code workaround
2012-02-14Merge tag 'mmc-fixes-for-3.3-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc MMC fixes for 3.3-rc4: * The most visible fix here is against a regression introduced in 3.3-rc1 that ran cards in Ultra High Speed mode even when they failed to initialize in that mode, leading to lower-speed cards failing to mount. * A lockdep warning introduced in 3.3-rc1 is fixed. * Various other small driver fixes, most notably for a NULL dereference when using highmem with dw_mmc. * tag 'mmc-fixes-for-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: dw_mmc: Fix PIO mode with support of highmem mmc: atmel-mci: save and restore sdioirq when soft reset is performed mmc: block: Init ro_lock sysfs attr to fix lockdep warnings mmc: sh_mmcif: fix late delayed work initialisation mmc: tmio_mmc: fix card eject during IO with DMA mmc: core: Fix comparison issue in mmc_compare_ext_csds mmc: core: Fix PowerOff Notify suspend/resume mmc: sdhci-pci: set Medfield SDIO as non-removable mmc: core: add the capability for broken voltage mmc: core: Fix low speed mmc card detection failure mmc: esdhc: set the timeout to the max value mmc: esdhc: add PIO mode support mmc: core: Ensure clocks are always enabled before host interaction mmc: of_mmc_spi: fix little endian support mmc: core: UHS sdio card that fails should not exceed 50MHz mmc: esdhc: fix errors when booting kernel on Freescale eSDHC version 2.3
2012-02-14Merge tag 'stable/for-linus-fixes-3.3-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Two fixes for VCPU offlining; One to fix the string format exposed by the xen-pci[front|back] to conform to the one used in majority of PCI drivers; Two fixes to make the code more resilient to invalid configurations. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> * tag 'stable/for-linus-fixes-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xenbus_dev: add missing error check to watch handling xen/pci[front|back]: Use %d instead of %1x for displaying PCI devfn. xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callback xen/smp: Fix CPU online/offline bug triggering a BUG: scheduling while atomic. xen/bootup: During bootup suppress XENBUS: Unable to read cpu state
2012-02-14USB: option: cleanup zte 3g-dongle's pid in option.cli.rui27@zte.com.cn
1. Remove all old mass-storage ids's pid: 0x0026,0x0053,0x0098,0x0099,0x0149,0x0150,0x0160; 2. As the pid from 0x1401 to 0x1510 which have not surely assigned to use for serial-port or mass-storage port,so i think it should be removed now, and will re-add after it have assigned in future; 3. sort the pid to WCDMA and CDMA. Signed-off-by: Rui li <li.rui27@zte.com.cn> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-14Merge tag 'for-usb-linus-2012-02-14' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus xHCI bug fix for broken BIOS on some Intel systems. Happy Valentine's Day! Your present is a working xHCI driver under some Intel systems with buggy BIOSes that don't provide a legacy PCI IRQ line for the USB 3.0 host. Please queue for 3.3 and stable to share the love!
2012-02-14ASoC: wm8962: Fix sidetone enumeration textsMark Brown
The sidetone enumeration texts have left and right swapped. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-02-143c59x: shorten timer period for slave devicesEric Dumazet
Jean Delvare reported bonding on top of 3c59x adapters was not detecting network cable removal fast enough. 3c59x indeed uses a 60 seconds timer to check link status if carrier is on, and 5 seconds if carrier is off. This patch reduces timer period to 5 seconds if device is a bonding slave. Reported-by: Jean Delvare <jdelvare@suse.de> Acked-by: Jean Delvare <jdelvare@suse.de> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14netpoll: netpoll_poll_dev() should access dev->flagsEric Dumazet
commit 5a698af53f (bond: service netpoll arp queue on master device) tested IFF_SLAVE flag against dev->priv_flags instead of dev->flags Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: WANG Cong <amwang@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14RxRPC: Fix kcalloc parameters swappedAxel Lin
The first parameter should be "number of elements" and the second parameter should be "element size". Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14bnx2x: remove the 'poll' module optionMichal Schmidt
'poll' was a debugging option, but turning it on these days leads to kernel panic. Remove it. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14tcp: fix tcp_shifted_skb() adjustment of lost_cnt_hint for FACKNeal Cardwell
This commit ensures that lost_cnt_hint is correctly updated in tcp_shifted_skb() for FACK TCP senders. The lost_cnt_hint adjustment in tcp_sacktag_one() only applies to non-FACK senders, so FACK senders need their own adjustment. This applies the spirit of 1e5289e121372a3494402b1b131b41bfe1cf9b7f - except now that the sequence range passed into tcp_sacktag_one() is correct we need only have a special case adjustment for FACK. Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14USB: Don't fail USB3 probe on missing legacy PCI IRQ.Sarah Sharp
Intel has a PCI USB xhci host controller on a new platform. It doesn't have a line IRQ definition in BIOS. The Linux driver refuses to initialize this controller, but Windows works well because it only depends on MSI. Actually, Linux also can work for MSI. This patch avoids the line IRQ checking for USB3 HCDs in usb core PCI probe. It allows the xHCI driver to try to enable MSI or MSI-X first. It will fail the probe if MSI enabling failed and there's no legacy PCI IRQ. This patch should be backported to kernels as old as 2.6.32. Signed-off-by: Alex Shi <alex.shi@intel.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org
2012-02-14[media] hdpvr: fix race conditon during start of streamingJanne Grunau
status has to be set to STREAMING before the streaming worker is queued. hdpvr_transmit_buffers() will exit immediately otherwise. Reported-by: Joerg Desch <vvd.joede@googlemail.com> CC: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-02-14Merge tag 'sound-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound sound fixes for 3.3-rc4 Basically all small fixes suited as rc4: a few HD-audio regression fixes, a stable fix for an old Dell laptop with intel8x0, and a simple fix for ASoC fsi. * tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: intel8x0: Fix default inaudible sound on Gateway M520 ALSA: hda - Fix silent speaker output on Acer Aspire 6935 ALSA: hda - Fix initialization of secondary capture source on VT1705 ASoC: fsi: fixup fsi_pointer() calculation method ALSA: hda - Fix mute-LED VREF value for new HP laptops
2012-02-14drm/radeon/kms: fix MSI re-arm on rv370+Alex Deucher
MSI_REARM_EN register is a write only trigger register. There is no need RMW when re-arming. May fix: https://bugs.freedesktop.org/show_bug.cgi?id=41668 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> CC: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-14drm/radeon/kms/atom: bios scratch reg handling updatesAlex Deucher
- Add missing DFP6 connection state handling - crtc routing bits not used on DCE4+ Noticed by sylware on phoronix. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-14drm/radeon/kms: drop lock in return path of radeon_fence_count_emitted.Dave Airlie
Silly bad return path. Reported-and-Tested-by: Mikko Vinni Reviewed-by: Alex Deucher <alexander.deucher@amd.com> CC: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-14ALSA: intel8x0: Fix default inaudible sound on Gateway M520Daniel T Chen
BugLink: https://bugs.launchpad.net/bugs/930842 The reporter states that audio is inaudible by default without muting 'External Amplifier'. Add a quirk to handle his SSID so that changing the control is not necessary. Reported-and-tested-by: Benjamin Carlson <elderbubba0810@gmail.com> Cc: <stable@kernel.org> Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-14Merge tag 'asoc-3.3' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus A simple fix from Morimoto-san for the pointer() operation in the FSI driver.
2012-02-13Merge git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
* git://git.samba.org/sfrench/cifs-2.6: cifs: don't return error from standard_receive3 after marking response malformed cifs: request oplock when doing open on lookup cifs: fix error handling when cifscreds key payload is an error
2012-02-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
This updates the sha512 fix so that it doesn't cause excessive stack usage on i386. This is done by reverting to the original code, and avoiding the W duplication by moving its initialisation into the loop. As the underlying code is in fact the one that we have used for years, I'm pushing this now instead of postponing to the next cycle. * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: sha512 - Avoid stack bloat on i386 crypto: sha512 - Use binary and instead of modulus
2012-02-14powerpc/pseries/eeh: Fix crash when error happens during device probeThadeu Lima de Souza Cascardo
EEH may happen during a PCI driver probe. If the driver is trying to access some register in a loop, the EEH code will try to print the driver name. But the driver pointer in struct pci_dev is not set until probe returns successfully. Use a function to test if the device and the driver pointer is NULL before accessing the driver's name. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-14powerpc/pseries: Fix partition migration hang in stop_topology_updateBrian King
This fixes a hang that was observed during live partition migration. Since stop_topology_update must not be called from an interrupt context, call it earlier in the migration process. The hang observed can be seen below: WARNING: at kernel/timer.c:1011 Modules linked in: ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables ip6table_filter ip6_tables x_tables ipv6 fuse loop ibmveth sg ext3 jbd mbcache raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid10 raid1 raid0 scsi_dh_alua scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc dm_round_robin dm_multipath scsi_dh sd_mod crc_t10dif ibmvfc scsi_transport_fc scsi_tgt scsi_mod dm_snapshot dm_mod NIP: c0000000000c52d8 LR: c00000000004be28 CTR: 0000000000000000 REGS: c00000005ffd77d0 TRAP: 0700 Not tainted (3.2.0-git-00001-g07d106d) MSR: 8000000000021032 <ME,CE,IR,DR> CR: 48000084 XER: 00000001 CFAR: c00000000004be20 TASK = c00000005ec78860[0] 'swapper/3' THREAD: c00000005ec98000 CPU: 3 GPR00: 0000000000000001 c00000005ffd7a50 c000000000fbbc98 c000000000ec8340 GPR04: 00000000282a0020 0000000000000000 0000000000004000 0000000000000101 GPR08: 0000000000000012 c00000005ffd4000 0000000000000020 c000000000f3ba88 GPR12: 0000000000000000 c000000007f40900 0000000000000001 0000000000000004 GPR16: 0000000000000001 0000000000000000 0000000000000000 c000000001022310 GPR20: 0000000000000001 0000000000000000 0000000000200200 c000000001029e14 GPR24: 0000000000000000 0000000000000001 0000000000000040 c00000003f74bc80 GPR28: c00000003f74bc84 c000000000f38038 c000000000f16b58 c000000000ec8340 NIP [c0000000000c52d8] .del_timer_sync+0x28/0x60 LR [c00000000004be28] .stop_topology_update+0x20/0x38 Call Trace: [c00000005ffd7a50] [c00000005ec78860] 0xc00000005ec78860 (unreliable) [c00000005ffd7ad0] [c00000000004be28] .stop_topology_update+0x20/0x38 [c00000005ffd7b40] [c000000000028378] .__rtas_suspend_last_cpu+0x58/0x260 [c00000005ffd7bf0] [c0000000000fa230] .generic_smp_call_function_interrupt+0x160/0x358 [c00000005ffd7cf0] [c000000000036ec8] .smp_ipi_demux+0x88/0x100 [c00000005ffd7d80] [c00000000005c154] .icp_hv_ipi_action+0x5c/0x80 [c00000005ffd7e00] [c00000000012a088] .handle_irq_event_percpu+0x100/0x318 [c00000005ffd7f00] [c00000000012e774] .handle_percpu_irq+0x84/0xd0 [c00000005ffd7f90] [c000000000022ba8] .call_handle_irq+0x1c/0x2c [c00000005ec9ba20] [c00000000001157c] .do_IRQ+0x22c/0x2a8 [c00000005ec9bae0] [c0000000000054bc] hardware_interrupt_entry+0x18/0x1c Exception: 501 at .cpu_idle+0x194/0x2f8 LR = .cpu_idle+0x194/0x2f8 [c00000005ec9bdd0] [c000000000017e58] .cpu_idle+0x188/0x2f8 (unreliable) [c00000005ec9be90] [c00000000067ec18] .start_secondary+0x3e4/0x524 [c00000005ec9bf90] [c0000000000093e8] .start_secondary_prolog+0x10/0x14 Instruction dump: ebe1fff8 4e800020 fbe1fff8 7c0802a6 f8010010 7c7f1b78 f821ff81 78290464 80090014 5400019e 7c0000d0 78000fe0 <0b000000> 4800000c 7c210b78 7c421378 Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-14powerpc/powernv: Disable interrupts while taking phb->lockMichael Ellerman
We need to disable interrupts when taking the phb->lock. Otherwise we could deadlock with pci_lock taken from an interrupt. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-14powerpc: Fix WARN_ON in decrementer_check_overflowBenjamin Herrenschmidt
We use __get_cpu_var() which triggers a false positive warning in smp_processor_id() thinking interrupts are enabled (at this point, they are soft-enabled but hard-disabled). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-14powerpc/wsp: Fix IRQ affinity settingBenjamin Herrenschmidt
We call the cache_hwirq_map() function with a linux IRQ number but it expects a HW irq number. This triggers a BUG on multic-chip setups in addition to not doing the right thing. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-14powerpc: Implement GET_IP/SET_IPSrikar Dronamraju
With this change, helpers such as instruction_pointer() et al, get defined in the generic header in terms of GET_IP Removed the unnecessary definition of profile_pc in !CONFIG_SMP case as suggested by Mike Frysinger. Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-14powerpc/wsp: Permanently enable PCI class code workaroundBenjamin Herrenschmidt
It appears that on the Chroma card, the class code of the root complex is still wrong even on DD2 or later chips. This could be a firmware issue, but that breaks resource allocation so let's unconditionally fix it up. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-13ocfs2: deal with wraparounds of i_nlink in ocfs2_rename()Al Viro
unfortunately, nlink_t may be smaller than 32 bits and ->i_nlink on ocfs2 can grow up to 0xffffffff; storing it in nlink_t variable will lose upper bits on such architectures. Needs to be made u32, until we get kernel-side nlink_t uniformly 32bit... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-02-13vfs: fix compat_sys_stat() handling of overflows in st_nlinkAl Viro
Massaged cp_compat_stat() into form closer to cp_new_stat(); the only real issue had been in handling of st_nlink overflows - native 32bit stat(2) returns -EOVERFLOW in such situations, compat one silently loses upper bits. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-02-13quota: Fix deadlock with suspend and quotasJan Kara
This script causes a kernel deadlock: set -e DEVICE=/dev/vg1/linear lvchange -ay $DEVICE mkfs.ext3 $DEVICE mount -t ext3 -o usrquota,grpquota $DEVICE /mnt/test quotacheck -gu /mnt/test umount /mnt/test mount -t ext3 -o usrquota,grpquota $DEVICE /mnt/test quotaon /mnt/test dmsetup suspend $DEVICE setquota -u root 1 2 3 4 /mnt/test & sleep 1 dmsetup resume $DEVICE setquota acquired semaphore s_umount for read and then tried to perform a transaction (and waits because the device is suspended). dmsetup resume tries to acquire s_umount for write before resuming the device (and waits for setquota). Fix the deadlock by grabbing a thawed superblock for quota commands which need it. Reported-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-02-13vfs: Provide function to get superblock and wait for it to thawJan Kara
In quota code we need to find a superblock corresponding to a device and wait for superblock to be unfrozen. However this waiting has to happen without s_umount semaphore because that is required for superblock to thaw. So provide a function in VFS for this to keep dances with s_umount where they belong. [AV: implementation switched to saner variant] Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-02-13vfs: fix panic in __d_lookup() with high dentry hashtable countsDimitri Sivanich
When the number of dentry cache hash table entries gets too high (2147483648 entries), as happens by default on a 16TB system, use of a signed integer in the dcache_init() initialization loop prevents the dentry_hashtable from getting initialized, causing a panic in __d_lookup(). Fix this in dcache_init() and similar areas. Signed-off-by: Dimitri Sivanich <sivanich@sgi.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-02-13autofs4 - fix lockdep splat in autofsSteven Rostedt
When recursing down the locks when traversing a tree/list in get_next_positive_dentry() or get_next_positive_subdir() a lock can change from being nested to being a parent which breaks lockdep. This patch tells lockdep about what we did. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-02-13vfs: fix d_inode_lookup() dentry ref leakMiklos Szeredi
d_inode_lookup() leaks a dentry reference on IS_DEADDIR(). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-02-13mmc: dw_mmc: Fix PIO mode with support of highmemSeungwon Jeon
Current PIO mode makes a kernel crash with CONFIG_HIGHMEM. Highmem pages have a NULL from sg_virt(sg). This patch fixes the following problem. Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 817 [#1] PREEMPT SMP Modules linked in: CPU: 0 Not tainted (3.0.15-01423-gdbf465f #589) PC is at dw_mci_pull_data32+0x4c/0x9c LR is at dw_mci_read_data_pio+0x54/0x1f0 pc : [<c0358824>] lr : [<c035988c>] psr: 20000193 sp : c0619d48 ip : c0619d70 fp : c0619d6c r10: 00000000 r9 : 00000002 r8 : 00001000 r7 : 00000200 r6 : 00000000 r5 : e1dd3100 r4 : 00000000 r3 : 65622023 r2 : 0000007f r1 : eeb96000 r0 : e1dd3100 Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment xkernel Control: 10c5387d Table: 61e2004a DAC: 00000015 Process swapper (pid: 0, stack limit = 0xc06182f0) Stack: (0xc0619d48 to 0xc061a000) 9d40: e1dd3100 e1a4f000 00000000 e1dd3100 e1a4f000 00000200 9d60: c0619da4 c0619d70 c035988c c03587e4 c0619d9c e18158f4 e1dd3100 e1dd3100 9d80: 00000020 00000000 00000000 00000020 c06e8a84 00000000 c0619e04 c0619da8 9da0: c0359b24 c0359844 e18158f4 e1dd3164 e1dd3168 e1dd3150 3d02fc79 e1dd3154 9dc0: e1dd3178 00000000 00000020 00000000 e1dd3150 00000000 c10dd7e8 e1a84900 9de0: c061e7cc 00000000 00000000 0000008d c06e8a84 c061e780 c0619e4c c0619e08 9e00: c00c4738 c0359a34 3d02fc79 00000000 c0619e4c c05a1698 c05a1670 c05a165c 9e20: c04de8b0 c061e780 c061e7cc e1a84900 ffffed68 0000008d c0618000 00000000 9e40: c0619e6c c0619e50 c00c48b4 c00c46c8 c061e780 c00423ac c061e7cc ffffed68 9e60: c0619e8c c0619e70 c00c7358 c00c487c 0000008d ffffee38 c0618000 ffffed68 9e80: c0619ea4 c0619e90 c00c4258 c00c72b0 c00423ac ffffee38 c0619ecc c0619ea8 9ea0: c004241c c00c4234 ffffffff f8810000 0000006d 00000002 00000001 7fffffff 9ec0: c0619f44 c0619ed0 c0048bc0 c00423c4 220ae7a9 00000000 386f0d30 0005d3a4 9ee0: c00423ac c10dd0b8 c06f2cd8 c0618000 c0594778 c003a674 7fffffff c0619f44 9f00: 386f0d30 c0619f18 c00a6f94 c005be3c 80000013 ffffffff 386f0d30 0005d3a4 9f20: 386f0d30 0005d2d1 c10dd0a8 c10dd0b8 c06f2cd8 c0618000 c0619f74 c0619f48 9f40: c0345858 c005be00 c00a2440 c0618000 c0618000 c00410d8 c06c1944 c00410fc 9f60: c0594778 c003a674 c0619f9c c0619f78 c004a7e8 c03457b4 c0618000 c06c18f8 9f80: 00000000 c0039c70 c06c18d4 c003a674 c0619fb4 c0619fa0 c04ceafc c004a714 9fa0: c06287b4 c06c18f8 c0619ff4 c0619fb8 c0008b68 c04cea68 c0008578 00000000 9fc0: 00000000 c003a674 00000000 10c5387d c0628658 c003aa78 c062f1c4 4000406a 9fe0: 413fc090 00000000 00000000 c0619ff8 40008044 c0008858 00000000 00000000 Backtrace: [<c03587d8>] (dw_mci_pull_data32+0x0/0x9c) from [<c035988c>] (dw_mci_read_data_pio+0x54/0x1f0) r6:00000200 r5:e1a4f000 r4:e1dd3100 [<c0359838>] (dw_mci_read_data_pio+0x0/0x1f0) from [<c0359b24>] (dw_mci_interrupt+0xfc/0x4a4) [<c0359a28>] (dw_mci_interrupt+0x0/0x4a4) from [<c00c4738>] (handle_irq_event_percpu+0x7c/0x1b4) [<c00c46bc>] (handle_irq_event_percpu+0x0/0x1b4) from [<c00c48b4>] (handle_irq_event+0x44/0x64) [<c00c4870>] (handle_irq_event+0x0/0x64) from [<c00c7358>] (handle_fasteoi_irq+0xb4/0x124) r7:ffffed68 r6:c061e7cc r5:c00423ac r4:c061e780 [<c00c72a4>] (handle_fasteoi_irq+0x0/0x124) from [<c00c4258>] (generic_handle_irq+0x30/0x38) r7:ffffed68 r6:c0618000 r5:ffffee38 r4:0000008d [<c00c4228>] (generic_handle_irq+0x0/0x38) from [<c004241c>] (asm_do_IRQ+0x64/0xe0) r5:ffffee38 r4:c00423ac [<c00423b8>] (asm_do_IRQ+0x0/0xe0) from [<c0048bc0>] (__irq_svc+0x80/0x14c) Exception stack(0xc0619ed0 to 0xc0619f18) Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Acked-by: Will Newton <will.newton@imgtec.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2012-02-13mmc: atmel-mci: save and restore sdioirq when soft reset is performedLudovic Desroches
Sometimes a software reset is needed. Then some registers are saved and restored but the interrupt mask register is missing. It causes issues with sdio devices whose interrupts are masked after reset. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2012-02-13mmc: block: Init ro_lock sysfs attr to fix lockdep warningsRabin Vincent
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Johan Rudholm <johan.rudholm@stericsson.com> Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2012-02-13mmc: sh_mmcif: fix late delayed work initialisationGuennadi Liakhovetski
If the driver is loaded with a card in the slot, mmc_add_host() will schedule an immediate card-detection work, which will start IO and wait for command completion. Usually the kernel first returns to the sh_mmcif probe function, lets it finish and only then schedules the rescan work. But sometimes, expecially under heavy system load, the work will be scheduled immediately before returning to the probe method. In this case it is important for the driver to be fully prepared for IO. For sh_mmcif this means, that also the timeout work has to be initialised before calling mmc_add_host(). It is also better to prepare interrupts beforehand. Besides, since mmc_add_host() does card-detection itself, there is no need to do it again immediately afterwards. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2012-02-13mmc: tmio_mmc: fix card eject during IO with DMAGuennadi Liakhovetski
When DMA is in use and the card is ejected during IO, DMA transfers have to be terminated, otherwise the dmaengine driver fails to operate properly, when the card is re-inserted. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2012-02-13mmc: core: Fix comparison issue in mmc_compare_ext_csdsJurgen Heeks
Found this issue during code review. Actually, there are two issues which both compensate together in lucky case. In unlucky case the bus width probing might not work as expected. Signed-off-by: Jurgen Heeks <jurgen.heeks@nokia.com> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2012-02-13mmc: core: Fix PowerOff Notify suspend/resumeGirish K S
Modified the mmc_poweroff to resume before sending the poweroff notification command. In sleep mode only AWAKE and RESET commands are allowed, so before sending the poweroff notification command resume from sleep mode and then send the notification command. PowerOff Notify is tested on a Synopsis Designware Host Controller (eMMC 4.5). The suspend to RAM and resume works fine. Signed-off-by: Girish K S <girish.shivananjappa@linaro.org> Tested-by: Girish K S <girish.shivananjappa@linaro.org> Reviewed-by: Saugata Das <saugata.das@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
generated by cgit (git 2.34.1) at 2025-07-16 14:32:02 +0000