- Sep 10, 2013
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Konrad Rzeszutek Wilk authored
The xen_lock_spinning has a check for the kicker interrupts and if it is not initialized it will spin normally (not enter the slowpath). But for PVHVM case we would initialize the kicker interrupt before the CPU came online. This meant that if the booting CPU used a spinlock and went in the slowpath - it would enter the slowpath and block forever. The forever part because during bootup: the spinlock would be taken _before_ the CPU sets itself to be online (more on this further), and we enter to poll on the event channel forever. The bootup CPU (see commit fc78d343 "xen/smp: initialize IPI vectors before marking CPU online" for details) and the CPU that started the bootup consult the cpu_online_mask to determine whether the booting CPU should get an IPI. The booting CPU has to set itself in this mask via: set_cpu_online(smp_processor_id(), true); However, if the spinlock is taken before this (and it is) and it polls on an event channel - it will never be woken up as the kernel will never send an IPI to an offline CPU. Note that the PVHVM logic in sending IPIs is using the HVM path which has numerous checks using the cpu_online_mask and cpu_active_mask. See above mention git commit for details. Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by:
David Vrabel <david.vrabel@citrix.com>
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Konrad Rzeszutek Wilk authored
Linux 3.11-rc7 As we need the git commit 28817e9de4f039a1a8c1fe1df2fa2df524626b9e Author: Chuck Anderson <chuck.anderson@oracle.com> Date: Tue Aug 6 15:12:19 2013 -0700 xen/smp: initialize IPI vectors before marking CPU online * tag 'v3.11-rc7': (443 commits) Linux 3.11-rc7 ARC: [lib] strchr breakage in Big-endian configuration VFS: collect_mounts() should return an ERR_PTR bfs: iget_locked() doesn't return an ERR_PTR efs: iget_locked() doesn't return an ERR_PTR() proc: kill the extra proc_readfd_common()->dir_emit_dots() cope with potentially long ->d_dname() output for shmem/hugetlb usb: phy: fix build breakage USB: OHCI: add missing PCI PM callbacks to ohci-pci.c staging: comedi: bug-fix NULL pointer dereference on failed attach lib/lz4: correct the LZ4 license memcg: get rid of swapaccount leftovers nilfs2: fix issue with counting number of bio requests for BIO_EOPNOTSUPP error detection nilfs2: remove double bio_put() in nilfs_end_bio_write() for BIO_EOPNOTSUPP error drivers/platform/olpc/olpc-ec.c: initialise earlier ipv4: expose IPV4_DEVCONF ipv6: handle Redirect ICMP Message with no Redirected Header option be2net: fix disabling TX in be_close() Revert "ACPI / video: Always call acpi_video_init_brightness() on init" Revert "genetlink: fix family dump race" ... Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Konrad Rzeszutek Wilk authored
Merge branch 'x86/spinlocks' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into stable/for-linus-3.12 * 'x86/spinlocks' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kvm/guest: Fix sparse warning: "symbol 'klock_waiting' was not declared as static" kvm: Paravirtual ticketlocks support for linux guests running on KVM hypervisor kvm guest: Add configuration support to enable debug information for KVM Guests kvm uapi: Add KICK_CPU and PV_UNHALT definition to uapi xen, pvticketlock: Allow interrupts to be enabled while blocking x86, ticketlock: Add slowpath logic jump_label: Split jumplabel ratelimit x86, pvticketlock: When paravirtualizing ticket locks, increment by 2 x86, pvticketlock: Use callee-save for lock_spinning xen, pvticketlocks: Add xen_nopvspin parameter to disable xen pv ticketlocks xen, pvticketlock: Xen implementation for PV ticket locks xen: Defer spinlock setup until boot CPU setup x86, ticketlock: Collapse a layer of functions x86, ticketlock: Don't inline _spin_unlock when using paravirt spinlocks x86, spinlock: Replace pv spinlocks with pv ticketlocks
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- Sep 09, 2013
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Julien Grall authored
When linux is running as dom0, Xen doesn't show the physical cpu but a virtual CPU. On some ARM SOC (for instance the exynos 5250), linux registers callbacks for cpuidle and cpufreq. When these callbacks are called, they will modify directly the physical cpu not the virtual one. It can impact the whole board instead of only dom0. Signed-off-by:
Julien Grall <julien.grall@linaro.org> Signed-off-by:
Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reviewed-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Boris Ostrovsky authored
m2p_remove_override() calls get_balloon_scratch_page() in MULTI_update_va_mapping() even though it already has pointer to this page from the earlier call (in scratch_page). This second call doesn't have a matching put_balloon_scratch_page() thus not restoring preempt count back. (Also, there is no put_balloon_scratch_page() in the error path.) In addition, the second multicall uses __xen_mc_entry() which does not disable interrupts. Rearrange xen_mc_* calls to keep interrupts off while performing multicalls. This commit fixes a regression introduced by: commit ee072640 Author: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Date: Tue Jul 23 17:23:54 2013 +0000 xen/m2p: use GNTTABOP_unmap_and_replace to reinstate the original mapping Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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Rob Herring authored
xen_pm_init was unconditionally setting pm_power_off and arm_pm_restart function pointers. This breaks multi-platform kernels. Make this conditional on running as a Xen guest and make it a late_initcall to ensure it is setup after platform code for Dom0. Signed-off-by:
Rob Herring <rob.herring@calxeda.com> Signed-off-by:
Stefano Stabellini <stefano.stabellini@eu.citrix.com> CC: stable@vger.kernel.org
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- Aug 31, 2013
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Joe Perches authored
kzalloc already adds this __GFP_ZERO. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Konrad Rzeszutek Wilk authored
Randy reports: x86_64: drivers/built-in.o: In function `xen_tpmfront_init': xen-tpmfront.c:(.init.text+0x257c): undefined reference to `xenbus_register_frontend' This is nicely fixed by selecting the XenBus frontend module. Reported-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Wei Liu authored
In commit cd9151e2 : xen/balloon: set a mapping for ballooned out pages we have the ballooned out page's mapping set to a scratch page. That commit also sets the P2M entry of ballooned out page to the scratch page's MFN. This is necessary for PV guest but not for HVM guest. On the other hand, setting the P2M entry would trigger BUG_ON in __set_phys_to_machine. The correct thing to do here is to avoid calling __set_phys_to_machine for auto translated guest. Signed-off-by:
Wei Liu <wei.liu2@citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by:
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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- Aug 30, 2013
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Dan Carpenter authored
The call to del_evtchn() frees "evtchn". Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Andres Lagar-Cavilla authored
When a foreign mapper attempts to map guest frames that are paged out, the mapper receives an ENOENT response and will have to try again while a helper process pages the target frame back in. Gating checks on PRIVCMD_MMAPBATCH* ioctl args were preventing retries of mapping calls. Permit subsequent calls to update a sub-range of the VMA, iff nothing is yet mapped in that range. Since it is now valid to call PRIVCMD_MMAPBATCH* multiple times, only set vma->vm_private_data if the parameters are valid and (if necessary) the pages for the auto_translated_physmap case have been allocated. This prevents subsequent calls from incorrectly entering the 'retry' path when there are no pages allocated etc. Signed-off-by:
Andres Lagar-Cavilla <andres@lagarcavilla.org> Signed-off-by:
David Vrabel <david.vrabel@citrix.com> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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- Aug 26, 2013
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging fixes from Greg KH: "Here are two tiny staging tree fixes (well, one is for an iio driver, but those updates come through the staging tree due to dependancies) One fixes a problem with an IIO driver, and the other fixes a bug in the comedi driver core" * tag 'staging-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: comedi: bug-fix NULL pointer dereference on failed attach iio: adjd_s311: Fix non-scan mode data read
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are two USB fixes for 3.11-rc7 One fixes a reported regression in the OHCI driver, and the other fixes a reported build breakage in the USB phy drivers" * tag 'usb-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: phy: fix build breakage USB: OHCI: add missing PCI PM callbacks to ohci-pci.c
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git://git.linaro.org/people/rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "This round of fixes is smaller than previous: a couple more updates for the security fixes, and a one-liner kexec fix" * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7816/1: CONFIG_KUSER_HELPERS: fix help text ARM: 7815/1: kexec: offline non panic CPUs on Kdump panic ARM: 7819/1: fiq: Cast the first argument of flush_icache_range()
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs fixes from Al Viro: "Assorted fixes from the last week or so" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: VFS: collect_mounts() should return an ERR_PTR bfs: iget_locked() doesn't return an ERR_PTR efs: iget_locked() doesn't return an ERR_PTR() proc: kill the extra proc_readfd_common()->dir_emit_dots() cope with potentially long ->d_dname() output for shmem/hugetlb
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- Aug 25, 2013
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI fix from Rafael Wysocki: "I really hoped that it wouldn't be necessary to change anything in ACPI at this point, but it turns out that we need to revert one more ACPI video commit causing trouble. This reverts a change in the ACPI video driver that caused the ACPI backlight initialization to be carried out even if acpi_backlight=vendor is passed in the kernel command line which turns out to break things at least on one system" * tag 'acpi-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: Revert "ACPI / video: Always call acpi_video_init_brightness() on init"
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "This is a set of small bug fixes for lpfc and zfcp and a fix for a fairly nasty bug in sg where a process which cancels I/O completes in a kernel thread which would then try to write back to the now gone userspace and end up writing to a random kernel address instead" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] zfcp: remove access control tables interface (keep sysfs files) [SCSI] zfcp: fix schedule-inside-lock in scsi_device list loops [SCSI] zfcp: fix lock imbalance by reworking request queue locking [SCSI] sg: Fix user memory corruption when SG_IO is interrupted by a signal [SCSI] lpfc: Don't force CONFIG_GENERIC_CSUM on
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Joern Rennecke authored
For a search buffer, 2 byte aligned, strchr() was returning pointer outside of buffer (buf - 1) ------------->8---------------- // Input buffer (default 4 byte aigned) char *buffer = "1AA_"; // actual search start (to mimick 2 byte alignment) char *current_line = &(buffer[2]); // Character to search for char c = 'A'; char *c_pos = strchr(current_line, c); printf("%s\n", c_pos) --> 'AA_' as oppose to 'A_' ------------->8---------------- Reported-by:
Anton Kolesov <Anton.Kolesov@synopsys.com> Debugged-by:
Anton Kolesov <Anton.Kolesov@synopsys.com> Cc: <stable@vger.kernel.org> # [3.9 and 3.10] Cc: Noam Camus <noamc@ezchip.com> Signed-off-by:
Joern Rennecke <joern.rennecke@embecosm.com> Signed-off-by:
Vineet Gupta <vgupta@synopsys.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Dan Carpenter authored
This should actually be returning an ERR_PTR on error instead of NULL. That was how it was designed and all the callers expect it. [AV: actually, that's what "VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors" missed - originally collect_mounts() was expected to return NULL on failure] Cc: <stable@vger.kernel.org> # 3.10+ Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Dan Carpenter authored
iget_locked() returns a NULL on error, it doesn't return an ERR_PTR. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Dan Carpenter authored
The iget_locked() function returns NULL on error and never an ERR_PTR. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Oleg Nesterov authored
proc_readfd_common() does dir_emit_dots() twice in a row, we need to do this only once. Signed-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
dynamic_dname() is both too much and too little for those - the output may be well in excess of 64 bytes dynamic_dname() assumes to be enough (thanks to ashmem feeding really long names to shmem_file_setup()) and vsnprintf() is an overkill for those guys. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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- Aug 24, 2013
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libataLinus Torvalds authored
Pull libata fixes from Tejun Heo: "This contains three commits all of which are updates for specific devices which aren't too widespread. Pretty limited scope and nothing too interesting or dangerous" * 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: sata_fsl: save irqs while coalescing libata: apply behavioral quirks to sil3826 PMP sata, highbank: fix ordering of SGPIO signals
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull cgroup fix from Tejun Heo: "A late fix for cgroup. This fixes a behavior regression visible to userland which was created by a commit merged during -rc1. While the behavior change isn't too likely to be noticeable, the fix is relatively low risk and we'll need to backport it through -stable anyway if the bug gets released" * 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cpuset: fix a regression in validating config change
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm fixes from Dave Airlie: "Ben was on holidays for a week so a few nouveau regression fixes backed up, but they all seem necessary. Otherwise one i915 and one gma500 fix" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: gma500: Fix SDVO turning off randomly drm/nv04/disp: fix framebuffer pin refcounting drm/nouveau/mc: fix race condition between constructor and request_irq() drm/nouveau: fix reclocking on nv40 drm/nouveau/ltcg: fix allocating memory as free drm/nouveau/ltcg: fix ltcg memory initialization after suspend drm/nouveau/fb: fix null derefs in nv49 and nv4e init drm/i915: Invalidate TLBs for the rings after a reset
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Anatolij Gustschin authored
Commit 94ae9843 (usb: phy: rename all phy drivers to phy-$name-usb.c) renamed drivers/usb/phy/otg_fsm.h to drivers/usb/phy/phy-fsm-usb.h but changed drivers/usb/phy/phy-fsm-usb.c to include not existing "phy-otg-fsm.h" instead of new "phy-fsm-usb.h". This breaks building: ... drivers/usb/phy/phy-fsm-usb.c:32:25: fatal error: phy-otg-fsm.h: No such file or directory compilation terminated. make[3]: *** [drivers/usb/phy/phy-fsm-usb.o] Error 1 This commit also missed to modify drivers/usb/phy/phy-fsl-usb.h to include new "phy-fsm-usb.h" instead of "otg_fsm.h" resulting in another build breakage: ... In file included from drivers/usb/phy/phy-fsl-usb.c:46:0: drivers/usb/phy/phy-fsl-usb.h:18:21: fatal error: otg_fsm.h: No such file or directory compilation terminated. make[3]: *** [drivers/usb/phy/phy-fsl-usb.o] Error 1 Fix both issues. Signed-off-by:
Anatolij Gustschin <agust@denx.de> Cc: stable <stable@vger.kernel.org> # 3.10+ Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Stern authored
Commit c1117afb (USB: OHCI: make ohci-pci a separate driver) neglected to preserve the entries for the pci_suspend and pci_resume driver callbacks. As a result, OHCI controllers don't work properly during suspend and after hibernation. This patch adds the missing callbacks to the driver. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by:
Steve Cotton <steve@s.cotton.clara.co.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ian Abbott authored
Commit dcd7b8bd ("staging: comedi: put module _after_ detach" by myself) reversed a couple of calls in `comedi_device_attach()` when recovering from an error returned by the low-level driver's 'attach' handler. Unfortunately, that introduced a NULL pointer dereference bug as `dev->driver` is NULL after the call to `comedi_device_detach()`. We still have a pointer to the low-level comedi driver structure in the `driv` variable, so use that instead. Signed-off-by:
Ian Abbott <abbotti@mev.co.uk> Cc: <stable@vger.kernel.org> # 3.10+ Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Merge networking fixes from David Miller: 1) Revert Johannes Berg's genetlink locking fix, because it causes regressions. Johannes and Pravin Shelar are working on fixing things properly. 2) Do not drop ipv6 ICMP messages without a redirected header option, they are legal. From Duan Jiong. 3) Missing error return propagation in probing of via-ircc driver. From Alexey Khoroshilov. 4) Do not clear out broadcast/multicast/unicast/WOL bits in r8169 when initializing, from Peter Wu. 5) realtek phy driver programs wrong interrupt status bit, from Giuseppe CAVALLARO. 6) Fix statistics regression in AF_PACKET code, from Willem de Bruijn. 7) Bridge code uses wrong bitmap length, from Toshiaki Makita. 8) SFC driver uses wrong indexes to look up MAC filters, from Ben Hutchings. 9) Don't pass stack buffers into usb control operations in hso driver, from Daniel Gimpelevich. 10) Multiple ipv6 fragmentation headers in one packet is illegal and such packets should be dropped, from Hannes Frederic Sowa. 11) When TCP sockets are "repaired" as part of checkpoint/restart, the timestamp field of SKBs need to be refreshed otherwise RTOs can be wildly off. From Andrey Vagin. 12) Fix memcpy args (uses 'address of pointer' instead of 'pointer') in hostp driver. From Dan Carpenter. 13) nl80211hdr_put() doesn't return an ERR_PTR, but some code believes it does. From Dan Carpenter. 14) Fix regression in wireless SME disconnects, from Johannes Berg. 15) Don't use a stack buffer for DMA in zd1201 USB wireless driver, from Jussi Kivilinna. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits) ipv4: expose IPV4_DEVCONF ipv6: handle Redirect ICMP Message with no Redirected Header option be2net: fix disabling TX in be_close() Revert "genetlink: fix family dump race" hso: Fix stack corruption on some architectures hso: Earlier catch of error condition sfc: Fix lookup of default RX MAC filters when steered using ethtool bridge: Use the correct bit length for bitmap functions in the VLAN code packet: restore packet statistics tp_packets to include drops net: phy: rtl8211: fix interrupt on status link change r8169: remember WOL preferences on driver load via-ircc: don't return zero if via_ircc_open() failed macvtap: Ignore tap features when VNET_HDR is off macvtap: Correctly set tap features when IFF_VNET_HDR is disabled. macvtap: simplify usage of tap_features tcp: set timestamps for restored skb-s bnx2x: set VF DMAE when first function has 0 supported VFs bnx2x: Protect against VFs' ndos when SR-IOV is disabled bnx2x: prevent VF benign attentions bnx2x: Consider DCBX remote error ...
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Linus Torvalds authored
Merge fixes from Andrew Morton: "A few fixes. One is a licensing change and I don't do licensing, so please eyeball that one" Licensing eye-balled. * emailed patches from Andrew Morton <akpm@linux-foundation.org>: lib/lz4: correct the LZ4 license memcg: get rid of swapaccount leftovers nilfs2: fix issue with counting number of bio requests for BIO_EOPNOTSUPP error detection nilfs2: remove double bio_put() in nilfs_end_bio_write() for BIO_EOPNOTSUPP error drivers/platform/olpc/olpc-ec.c: initialise earlier
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Richard Laager authored
The LZ4 code is listed as using the "BSD 2-Clause License". Signed-off-by:
Richard Laager <rlaager@wiktel.com> Acked-by:
Kyungsik Lee <kyungsik.lee@lge.com> Cc: Chanho Min <chanho.min@lge.com> Cc: Richard Yao <ryao@gentoo.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> [ The 2-clause BSD can be just converted into GPL, but that's rude and pointless, so don't do it - Linus ] Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Michal Hocko authored
The swapaccount kernel parameter without any values has been removed by commit a2c8990a ("memsw: remove noswapaccount kernel parameter") but it seems that we didn't get rid of all the left overs. Make sure that menuconfig help text and kernel-parameters.txt are clear about value for the paramter and remove the stalled comment which is not very much useful on its own. Signed-off-by:
Michal Hocko <mhocko@suse.cz> Reported-by:
Gergely Risko <gergely@risko.hu> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Vyacheslav Dubeyko authored
Fix the issue with improper counting number of flying bio requests for BIO_EOPNOTSUPP error detection case. The sb_nbio must be incremented exactly the same number of times as complete() function was called (or will be called) because nilfs_segbuf_wait() will call wail_for_completion() for the number of times set to sb_nbio: do { wait_for_completion(&segbuf->sb_bio_event); } while (--segbuf->sb_nbio > 0); Two functions complete() and wait_for_completion() must be called the same number of times for the same sb_bio_event. Otherwise, wait_for_completion() will hang or leak. Signed-off-by:
Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Tested-by:
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Vyacheslav Dubeyko authored
Remove double call of bio_put() in nilfs_end_bio_write() for the case of BIO_EOPNOTSUPP error detection. The issue was found by Dan Carpenter and he suggests first version of the fix too. Signed-off-by:
Vyacheslav Dubeyko <slava@dubeyko.com> Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Tested-by:
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Daniel Drake authored
Being a low-level component, various drivers (e.g. olpc-battery) assume that it is ok to communicate with the OLPC Embedded Controller during probe. Therefore the OLPC EC driver must be initialised before other drivers try to use it. This was the case until it was recently moved out of arch/x86 and restructured around commits ac250415 ("Platform: OLPC: turn EC driver into a platform_driver") and 85f90cf6 ("x86: OLPC: switch over to using new EC driver on x86"). Use arch_initcall so that olpc-ec is readied earlier, matching the previous behaviour. Fixes a regression introduced in Linux-3.6 where various drivers such as olpc-battery and olpc-xo1-sci failed to load due to an inability to communicate with the EC. The user-visible effect was a lack of battery monitoring, missing ebook/lid switch input devices, etc. Signed-off-by:
Daniel Drake <dsd@laptop.org> Cc: Andres Salomon <dilinger@queued.net> Cc: Paul Fox <pgf@laptop.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- Aug 23, 2013
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Dave Airlie authored
Merge tag 'drm-intel-fixes-2013-08-23' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes Just one patch that soaked for quite a bit to fix a resume issue, resulting in gpu hangs (or worse) due to tlb containing garbage. * tag 'drm-intel-fixes-2013-08-23' of git://people.freedesktop.org/~danvet/drm-intel: drm/i915: Invalidate TLBs for the rings after a reset
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stephen hemminger authored
IP sends device configuration (see inet_fill_link_af) as an array in the netlink information, but the indices in that array are not exposed to userspace through any current santized header file. It was available back in 2.6.32 (in /usr/include/linux/sysctl.h) but was broken by: commit 02291680 Author: Eric W. Biederman <ebiederm@xmission.com> Date: Sun Feb 14 03:25:51 2010 +0000 net ipv4: Decouple ipv4 interface parameters from binary sysctl numbers Eric was solving the sysctl problem but then the indices were re-exposed by a later addition of devconf support for IPV4 commit 9f0f7272 Author: Thomas Graf <tgraf@infradead.org> Date: Tue Nov 16 04:32:48 2010 +0000 ipv4: AF_INET link address family Putting them in /usr/include/linux/ip.h seemed the logical match for the DEVCONF_ definitions for IPV6 in /usr/include/linux/ip6.h Signed-off-by:
Stephen Hemminger <stephen@networkplumber.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Duan Jiong authored
rfc 4861 says the Redirected Header option is optional, so the kernel should not drop the Redirect Message that has no Redirected Header option. In this patch, the function ip6_redirect_no_header() is introduced to deal with that condition. Signed-off-by:
Duan Jiong <duanj.fnst@cn.fujitsu.com> Acked-by:
Hannes Frederic Sowa <hannes@stressinduktion.org>
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