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* powerpc/crypto: AES-ECB mode routines for nx encryptionKent Yoder2012-05-161-0/+139
| | | | | | | | These routines add support for AES in ECB mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/crypto: AES-CTR mode routines for nx encryptionKent Yoder2012-05-161-0/+178
| | | | | | | | These routines add support for AES in CTR mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/crypto: AES-CCM mode routines for nx encryptionKent Yoder2012-05-161-0/+468
| | | | | | | | These routines add support for AES in CCM mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/crypto: AES-CBC mode routines for nx encryptionKent Yoder2012-05-161-0/+141
| | | | | | | | These routines add support for AES in CBC mode on the Power7+ CPU's in-Nest accelerator driver. Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/crypto: nx driver code supporting nx encryptionKent Yoder2012-05-163-0/+1114
| | | | | | | | These routines add the base device driver code supporting the Power7+ in-Nest encryption accelerator (nx) device. Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Enable the PFO-based RNG acceleratorKent Yoder2012-05-141-1/+7
| | | | | | | | | | This patch adds the cas bits to advertise support for the Platform Facilities Option (PFO) based random number generator accerator. The pseries-rng driver provides support for this hardware feature. Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries/hwrng: PFO-based hwrng driverKent Yoder2012-05-143-0/+110
| | | | | | | | | | Adds support for the Platform Facilities Option (PFO)-based hardware random number generator for POWER hardware. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Add PFO support to the VIO busKent Yoder2012-05-142-39/+280
| | | | | | | | | | | | Add support for the Platform Facilities Option (PFO) to the VIO bus. These devices have a separate root node in OpenFirmware which requires additional parsing to map into the existing VIO device structure fields. This adds the interface for PFO device drivers to make synchronous hypervisor calls. Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Add pseries update notifier for OFDT prop changesKent Yoder2012-05-142-0/+19
| | | | | | | | | | | This adds an update notifier mechanism for changes to properties in the device tree. One use of this would be a device driver that needs to act on changes to it's properties in the device tree after a live migration or a dynamic activation that is triggered by updates to ofdt properties. Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Add new hvcall constants to support PFOKent Yoder2012-05-141-2/+23
| | | | | | | | | The Platform Facilities Option (PFO) adds several new h_calls and more return codes. Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/hw-breakpoint: Use generic hw-breakpoint interfaces for new PPC ↵K.Prasad2012-05-142-6/+87
| | | | | | | | | | | | | | | | | | | ptrace flags PPC_PTRACE_GETHWDBGINFO, PPC_PTRACE_SETHWDEBUG and PPC_PTRACE_DELHWDEBUG are PowerPC specific ptrace flags that use the watchpoint register. While they are targeted primarily towards BookE users, user-space applications such as GDB have started using them for BookS too. This patch enables the use of generic hardware breakpoint interfaces for these new flags. Apart from the usual benefits of using generic hw-breakpoint interfaces, these changes allow debuggers (such as GDB) to use a common set of ptrace flags for their watchpoint needs and allow more precise breakpoint specification (length of the variable can be specified). Signed-off-by: K.Prasad <prasad@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Support lower minimum entitlement for virtual processorsRobert Jennings2012-05-141-2/+6
| | | | | | | | | This patch changes the architecture vector to advertise support for a lower minimum virtual processor entitled capacity. The default minimum without this patch is 10%, this patch specifies 1%. Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'merge' into nextBenjamin Herrenschmidt2012-05-14275-1545/+2621
|\ | | | | | | We want the irq fixes from the "merge" branch.
| * powerpc/irq: Fix another case of lazy IRQ state getting out of syncBenjamin Herrenschmidt2012-05-122-13/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So we have another case of paca->irq_happened getting out of sync with the HW irq state. This can happen when a perfmon interrupt occurs while soft disabled, as it will return to a soft disabled but hard enabled context while leaving a stale PACA_IRQ_HARD_DIS flag set. This patch fixes it, and also adds a test for the condition of those flags being out of sync in arch_local_irq_restore() when CONFIG_TRACE_IRQFLAGS is enabled. This helps catching those gremlins faster (and so far I can't seem see any anymore, so that's good news). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * Merge branch 'for-linus' of ↵Linus Torvalds2012-05-117-21/+21
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu Pull a m68knommu fix from Greg Ungerer: "It contains a single fix for including the ColdFire QSPI interface setup code when enabled as a module. This was broken in the consolidation of the ColdFire SoC device tables in the 3.4 merge window." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: enable qspi support when SPI_COLDFIRE_QSPI = m
| | * m68knommu: enable qspi support when SPI_COLDFIRE_QSPI = mSteven King2012-05-087-21/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable Coldfire QSPI support when SPI_COLDFIRE_QSPI is built as a module. This version of the patch combines changes to the config files and device.c and uses IF_ENABLED (thanks to Sam Ravnborg for the suggestion). Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | mm: raise MemFree by reverting percpu_pagelist_fraction to 0Hugh Dickins2012-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Why is there less MemFree than there used to be? It perturbed a test, so I've just been bisecting linux-next, and now find the offender went upstream yesterday. Commit 93278814d359 "mm: fix division by 0 in percpu_pagelist_fraction()" mistakenly initialized percpu_pagelist_fraction to the sysctl's minimum 8, which leaves 1/8th of memory on percpu lists (on each cpu??); but most of us expect it to be left unset at 0 (and it's not then used as a divisor). MemTotal: 8061476kB 8061476kB 8061476kB 8061476kB 8061476kB 8061476kB Repetitive test with percpu_pagelist_fraction 8: MemFree: 6948420kB 6237172kB 6949696kB 6840692kB 6949048kB 6862984kB Same test with percpu_pagelist_fraction back to 0: MemFree: 7945000kB 7944908kB 7948568kB 7949060kB 7948796kB 7948812kB Signed-off-by: Hugh Dickins <hughd@google.com> [ We really should fix the crazy sysctl interface too, but that's a separate thing - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | Merge branch 'parisc' (PA-RISC compile fixes)Linus Torvalds2012-05-109-8/+17
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge PA-RISC compile fixes from Rolf Eike Beer: "Since commit d66acc39c7ce ("bitops: Optimise get_order()") getorder.h includes log2.h which leads to an include loop on PA-RISC, bringing a bunch of other breakage to light. This patchset fixes the compilation of the current state of 3.4 on HPPA. Unchanged against the first version, just added an Ack by Grant." * emailed from Rolf Eike Beer <eike-kernel@sf-tec.de>: (5 patches) parisc: move definition of PAGE0 to asm/page.h parisc: add missing include of asm/page.h to asm/pgtable.h parisc: drop include of asm/pdc.h from asm/hardware.h parisc: add missing forward declarations in asm/hardware.h parisc: add missing includes in asm/spinlock.h
| | * | parisc: move definition of PAGE0 to asm/page.hRolf Eike Beer2012-05-106-7/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was defined in asm/pdc.h which needs to include asm/page.h for __PAGE_OFFSET. This leads to an include loop so that page.h eventually will include pdc.h again. While this is no problem because of header guards, it is a problem because some symbols may be undefined. Such an error is this: In file included from include/linux/bitops.h:35:0, from include/asm-generic/getorder.h:7, from arch/parisc/include/asm/page.h:162, from arch/parisc/include/asm/pdc.h:346, from arch/parisc/include/asm/processor.h:16, from arch/parisc/include/asm/spinlock.h:6, from arch/parisc/include/asm/atomic.h:20, from include/linux/atomic.h:4, from include/linux/sysfs.h:20, from include/linux/kobject.h:21, from include/linux/device.h:17, from include/linux/eisa.h:5, from arch/parisc/kernel/pci.c:11: arch/parisc/include/asm/bitops.h: In function ‘set_bit’: arch/parisc/include/asm/bitops.h:82:2: error: implicit declaration of function ‘_atomic_spin_lock_irqsave’ [-Werror=implicit-function-declaration] arch/parisc/include/asm/bitops.h:84:2: error: implicit declaration of function ‘_atomic_spin_unlock_irqrestore’ [-Werror=implicit-function-declaration] Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | parisc: add missing include of asm/page.h to asm/pgtable.hRolf Eike Beer2012-05-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes these errors: In file included from arch/parisc/include/asm/io.h:5:0, from include/linux/io.h:22, from include/linux/pci.h:54, from arch/parisc/kernel/setup.c:35: arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef] arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef] arch/parisc/include/asm/pgtable.h:92:6: warning: "BITS_PER_PTE_ENTRY" is not defined [-Wundef] Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | parisc: drop include of asm/pdc.h from asm/hardware.hRolf Eike Beer2012-05-101-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It seems none of the symbols defined by pdc.h is needed, but it introduces an include loop causing compile errors: In file included from arch/parisc/include/asm/spinlock.h:4:0, from arch/parisc/include/asm/atomic.h:20, from include/linux/atomic.h:4, from arch/parisc/include/asm/bitops.h:56, from include/linux/bitops.h:35, from include/asm-generic/getorder.h:7, from arch/parisc/include/asm/page.h:162, from arch/parisc/include/asm/pdc.h:346, from arch/parisc/include/asm/hardware.h:5, from arch/parisc/kernel/hardware.c:30: arch/parisc/include/asm/processor.h:74:16: error: field ‘cpu_type’ has incomplete type arch/parisc/include/asm/processor.h:77:20: error: field ‘model’ has incomplete type arch/parisc/include/asm/processor.h: In function ‘parisc_requires_coherency’: arch/parisc/include/asm/processor.h:349:36: error: ‘mako’ undeclared (first use in this function) arch/parisc/include/asm/processor.h:349:36: note: each undeclared identifier is reported only once for each function it appears in arch/parisc/include/asm/processor.h:350:30: error: ‘mako2’ undeclared (first use in this function) Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Acked-by: Grant Grundler <grantgrundler@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | parisc: add missing forward declarations in asm/hardware.hRolf Eike Beer2012-05-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes this warnings: In file included from arch/parisc/include/asm/processor.h:15:0, from arch/parisc/include/asm/spinlock.h:4, from arch/parisc/include/asm/atomic.h:20, from include/linux/atomic.h:4, from arch/parisc/include/asm/bitops.h:11, from include/linux/bitops.h:22, from include/linux/kernel.h:19, from include/linux/sched.h:55, from arch/parisc/kernel/asm-offsets.c:31: arch/parisc/include/asm/hardware.h:106:10: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] arch/parisc/include/asm/hardware.h:106:10: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] arch/parisc/include/asm/hardware.h:116:59: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] arch/parisc/include/asm/hardware.h:118:47: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] arch/parisc/include/asm/hardware.h:119:57: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default] Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | parisc: add missing includes in asm/spinlock.hRolf Eike Beer2012-05-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This leads to this errors: In file included from arch/parisc/include/asm/atomic.h:20:0, from include/linux/atomic.h:4, from arch/parisc/include/asm/bitops.h:56, from include/linux/bitops.h:22, from include/linux/kernel.h:19, from include/linux/sched.h:55, from arch/parisc/kernel/asm-offsets.c:31: arch/parisc/include/asm/spinlock.h: In function ‘arch_spin_is_locked’: arch/parisc/include/asm/spinlock.h:9:2: error: implicit declaration of function ‘__ldcw_align’ [-Werror=implicit-function-declaration] arch/parisc/include/asm/spinlock.h:9:29: warning: initialization makes pointer from integer without a cast [enabled by default] arch/parisc/include/asm/spinlock.h: In function ‘arch_spin_lock_flags’: arch/parisc/include/asm/spinlock.h:22:2: error: implicit declaration of function ‘mb’ [-Werror=implicit-function-declaration] arch/parisc/include/asm/spinlock.h:23:4: warning: assignment makes pointer from integer without a cast [enabled by default] arch/parisc/include/asm/spinlock.h:24:2: error: implicit declaration of function ‘__ldcw’ [-Werror=implicit-function-declaration] Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds2012-05-109-10/+26
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge misc fixes from Andrew Morton. * emailed from Andrew Morton <akpm@linux-foundation.org>: (8 patches) MAINTAINERS: add maintainer for LED subsystem mm: nobootmem: fix sign extend problem in __free_pages_memory() drivers/leds: correct __devexit annotations memcg: free spare array to avoid memory leak namespaces, pid_ns: fix leakage on fork() failure hugetlb: prevent BUG_ON in hugetlb_fault() -> hugetlb_cow() mm: fix division by 0 in percpu_pagelist_fraction() proc/pid/pagemap: correctly report non-present ptes and holes between vmas
| | * | | MAINTAINERS: add maintainer for LED subsystemBryan Wu2012-05-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add Bryan Wu as the primary maintainer for drivers/leds Signed-off-by: Bryan Wu <bryan.wu@canonical.com> Acked-by: Richard Purdie <richard.purdie@linuxfoundation.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | mm: nobootmem: fix sign extend problem in __free_pages_memory()Russ Anderson2012-05-101-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Systems with 8 TBytes of memory or greater can hit a problem where only the the first 8 TB of memory shows up. This is due to "int i" being smaller than "unsigned long start_aligned", causing the high bits to be dropped. The fix is to change `i' to unsigned long to match start_aligned and end_aligned. Thanks to Jack Steiner for assistance tracking this down. Signed-off-by: Russ Anderson <rja@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Tejun Heo <tj@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Gavin Shan <shangw@linux.vnet.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | drivers/leds: correct __devexit annotationsArnd Bergmann2012-05-102-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __devexit functions are discarded without CONFIG_HOTPLUG, so they need to be referenced carefully. A __devexit function may also not be called from a __devinit function. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | memcg: free spare array to avoid memory leakSha Zhengju2012-05-101-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the last event is unregistered, there is no need to keep the spare array anymore. So free it to avoid memory leak. Signed-off-by: Sha Zhengju <handai.szj@taobao.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | namespaces, pid_ns: fix leakage on fork() failureMike Galbraith2012-05-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fork() failure post namespace creation for a child cloned with CLONE_NEWPID leaks pid_namespace/mnt_cache due to proc being mounted during creation, but not unmounted during cleanup. Call pid_ns_release_proc() during cleanup. Signed-off-by: Mike Galbraith <efault@gmx.de> Acked-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Louis Rilling <louis.rilling@kerlabs.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | hugetlb: prevent BUG_ON in hugetlb_fault() -> hugetlb_cow()Chris Metcalf2012-05-101-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 66aebce747eaf ("hugetlb: fix race condition in hugetlb_fault()") added code to avoid a race condition by elevating the page refcount in hugetlb_fault() while calling hugetlb_cow(). However, one code path in hugetlb_cow() includes an assertion that the page count is 1, whereas it may now also have the value 2 in this path. The consensus is that this BUG_ON has served its purpose, so rather than extending it to cover both cases, we just remove it. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Hillf Danton <dhillf@gmail.com> Acked-by: Hugh Dickins <hughd@google.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: <stable@vger.kernel.org> [3.0.29+, 3.2.16+, 3.3.3+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | mm: fix division by 0 in percpu_pagelist_fraction()Sasha Levin2012-05-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | percpu_pagelist_fraction_sysctl_handler() has only considered -EINVAL as a possible error from proc_dointvec_minmax(). If any other error is returned, it would proceed to divide by zero since percpu_pagelist_fraction wasn't getting initialized at any point. For example, writing 0 bytes into the proc file would trigger the issue. Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Reviewed-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | proc/pid/pagemap: correctly report non-present ptes and holes between vmasKonstantin Khlebnikov2012-05-101-2/+10
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reset the current pagemap-entry if the current pte isn't present, or if current vma is over. Otherwise pagemap reports last entry again and again. Non-present pte reporting was broken in commit 092b50bacd1c ("pagemap: introduce data structure for pagemap entry") Reporting for holes was broken in commit 5aaabe831eb5 ("pagemap: avoid splitting thp when reading /proc/pid/pagemap") Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Reported-by: Pavel Emelyanov <xemul@parallels.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Andi Kleen <ak@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds2012-05-102-4/+4
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull a sparc fix from David Miller. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Do not clobber %g2 in xcall_fetch_glob_regs().
| | * | | sparc64: Do not clobber %g2 in xcall_fetch_glob_regs().David S. Miller2012-05-102-4/+4
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | %g2 is meant to hold the CPUID number throughout this routine, since at the very beginning, and at the very end, we use %g2 to calculate indexes into per-cpu arrays. However we erroneously clobber it in order to hold the %cwp register value mid-stream. Fix this code to use %g3 for the %cwp read and related calulcations instead. Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Merge branch 'for-3.4-fixes' of ↵Linus Torvalds2012-05-101-0/+12
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu Pull percpu fixes from Tejun Heo: "This pull request contains two patches. One is kmemleak annotation fix which isn't critical. The other is kinda serious. Depending on NUMA topology, percpu allocator may end up assigning overlapping regions for the static percpu areas for different CPUs. While critical, the bug has been there for a very long time and only few configurations seem to be affected (NUMA configurations w/ no memory nodes for example) - so, while it's critical, it isn't exactly urgent." * 'for-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: kmemleak: Fix the kmemleak tracking of the percpu areas with !SMP percpu: pcpu_embed_first_chunk() should free unused parts after all allocs are complete
| | * | | kmemleak: Fix the kmemleak tracking of the percpu areas with !SMPCatalin Marinas2012-05-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kmemleak tracks the percpu allocations via a specific API and the originally allocated areas must be removed from kmemleak (via kmemleak_free). The code was already doing this for SMP systems. Reported-by: Sami Liedes <sami.liedes@iki.fi> Cc: Tejun Heo <tj@kernel.org> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| | * | | percpu: pcpu_embed_first_chunk() should free unused parts after all allocs ↵Tejun Heo2012-05-091-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | are complete pcpu_embed_first_chunk() allocates memory for each node, copies percpu data and frees unused portions of it before proceeding to the next group. This assumes that allocations for different nodes doesn't overlap; however, depending on memory topology, the bootmem allocator may end up allocating memory from a different node than the requested one which may overlap with the portion freed from one of the previous percpu areas. This leads to percpu groups for different nodes overlapping which is a serious bug. This patch separates out copy & partial free from the allocation loop such that all allocations are complete before partial frees happen. This also fixes overlapping frees which could happen on allocation failure path - out_free_areas path frees whole groups but the groups could have portions freed at that point. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org Reported-by: "Pavel V. Panteleev" <pp_84@mail.ru> Tested-by: "Pavel V. Panteleev" <pp_84@mail.ru> LKML-Reference: <E1SNhwY-0007ui-V7.pp_84-mail-ru@f220.mail.ru>
| * | | | Merge git://git.samba.org/sfrench/cifs-2.6Linus Torvalds2012-05-101-1/+1
| |\ \ \ \ | | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | Pull cifs fix from Steve French. * git://git.samba.org/sfrench/cifs-2.6: cifs: fix revalidation test in cifs_llseek()
| | * | | cifs: fix revalidation test in cifs_llseek()Dan Carpenter2012-05-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This test is always true so it means we revalidate the length every time, which generates more network traffic. When it is SEEK_SET or SEEK_CUR, then we don't need to revalidate. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | | Merge tag 'nfs-for-3.4-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2012-05-101-3/+4
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull a NFS client bugfix from Trond Myklebust: "Fix for the NFSv4 security negotiation: ensure that the security negotiation tries all registered security flavours" * tag 'nfs-for-3.4-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: auth_gss: the list of pseudoflavors not being parsed correctly
| | * | | | auth_gss: the list of pseudoflavors not being parsed correctlySteve Dickson2012-05-031-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gss_mech_list_pseudoflavors() parses a list of registered mechanisms. On that list contains a list of pseudo flavors which was not being parsed correctly, causing only the first pseudo flavor to be found. Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | Merge tag 'sound-3.4' of ↵Linus Torvalds2012-05-106-15/+30
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Slightly more than expected as rc7, but all are reasonablly small fixes. A few additions of HD-audio fixup entries, a couple of other regression fixes including a revert, and a few other trivial oneliners." * tag 'sound-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ASoC: sh: fix migor.c compilation ALSA: HDA: Lessen CPU usage when waiting for chip to respond Revert "ALSA: hda - Set codec to D3 forcibly even if not used" ALSA: hda/realtek - Call alc_auto_parse_customize_define() always after fixup ALSA: hdsp - Provide ioctl_compat ALSA: hda/realtek - Add missing CD-input pin for MSI-7350 mobo ALSA: hda/realtek - Add a fixup for Acer Aspire 5739G ALSA: echoaudio: Remove incorrect part of assertion
| | * \ \ \ \ Merge tag 'asoc-3.4' of ↵Takashi Iwai2012-05-091-1/+1
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Build fix for SH in 3.4 An API update which wasn't sufficiently thorough in updating the tree...
| | | * | | | | ASoC: sh: fix migor.c compilationGuennadi Liakhovetski2012-05-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a recent compilation breakage, caused by a change in SH clock API. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| | * | | | | | ALSA: HDA: Lessen CPU usage when waiting for chip to respondDavid Henningsson2012-05-091-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When an IRQ for some reason gets lost, we wait up to a second using udelay, which is CPU intensive. This patch improves the situation by waiting about 30 ms in the CPU intensive mode, then stepping down to using msleep(2) instead. In essence, we trade some granularity in exchange for less CPU consumption when the waiting time is a bit longer. As a result, PulseAudio should no longer be killed by the kernel for taking up to much RT-prio CPU time. At least not for *this* reason. Signed-off-by: David Henningsson <david.henningsson@canonical.com> Tested-by: Arun Raghavan <arun.raghavan@collabora.co.uk> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | * | | | | | Revert "ALSA: hda - Set codec to D3 forcibly even if not used"Takashi Iwai2012-05-082-5/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 785f857d1cb0856b612b46a0545b74aa2596e44a. The commit causes a problem with the wrong D3 state after suspend because the call of hda_set_power_state() involves with the power-up sequence, which changes the power_count, and this confuses the resume sequence that checks the power_count as well. Originally, this go-to-D3 sequence should be a simple task without the power-up sequence. But, it'd need some proper sanity checks in the case of power-saved state, so it's not too easy to write now in the 3.4-rc cycle. In short, the safest option now is to revert this affecting commit. Of course, we need to clean up and robustify the power-saving code better for 3.5 kernel. Reported-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | * | | | | | ALSA: hda/realtek - Call alc_auto_parse_customize_define() always after fixupTakashi Iwai2012-05-081-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The call for alc_auto_parse_customize_define() must be done after the fixup pre-probe initialization. Otherwise SKU_IGNORE fixup won't work properly (e.g. HP RP5800 with ALC662 codec). Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | * | | | | | ALSA: hdsp - Provide ioctl_compatAndre Schramm2012-05-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | snd_hdsp uses its own ioctls to acquire config- and status information. Expose the corresponding ioctl handler via ioctl_compat, so that 32bit applications can use it on 64bit kernels. Signed-off-by: Andre Schramm <andre.schramm@iosono-sound.com> Reviewed-by: Adrian Knoth <adi@drcomp.erfurt.thur.de> Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | * | | | | | ALSA: hda/realtek - Add missing CD-input pin for MSI-7350 moboTakashi Iwai2012-05-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reported-by: Philipp Matthias Hahn <pmhahn@pmhahn.de> Cc: <stable@kernel.org> [v3.3+] Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | * | | | | | ALSA: hda/realtek - Add a fixup for Acer Aspire 5739GTakashi Iwai2012-05-071-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Acer Aspire 5739G requires the same fix-up for 4930G to support the surround / bass speakers. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43180 Signed-off-by: Takashi Iwai <tiwai@suse.de>
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