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2012-05-21fbdev: sh_mobile_lcdc: Don't confuse line size with pitchLaurent Pinchart
When using the MERAM the LCDC line size needs to be programmed with a MERAM-specific value different than the real frame buffer pitch. Fix it. Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: stable@vger.kernel.org # for 3.4 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21Merge branch 'irq-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core irq changes from Ingo Molnar: "A collection of small fixes." By Thomas Gleixner * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: hexagon: Remove select of not longer existing Kconfig switches arm: Select core options instead of redefining them genirq: Do not consider disabled wakeup irqs genirq: Allow check_wakeup_irqs to notice level-triggered interrupts genirq: Be more informative on irq type mismatch genirq: Reject bogus threaded irq requests genirq: Streamline irq_action
2012-05-21Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem updates from James Morris: "New notable features: - The seccomp work from Will Drewry - PR_{GET,SET}_NO_NEW_PRIVS from Andy Lutomirski - Longer security labels for Smack from Casey Schaufler - Additional ptrace restriction modes for Yama by Kees Cook" Fix up trivial context conflicts in arch/x86/Kconfig and include/linux/filter.h * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (65 commits) apparmor: fix long path failure due to disconnected path apparmor: fix profile lookup for unconfined ima: fix filename hint to reflect script interpreter name KEYS: Don't check for NULL key pointer in key_validate() Smack: allow for significantly longer Smack labels v4 gfp flags for security_inode_alloc()? Smack: recursive tramsmute Yama: replace capable() with ns_capable() TOMOYO: Accept manager programs which do not start with / . KEYS: Add invalidation support KEYS: Do LRU discard in full keyrings KEYS: Permit in-place link replacement in keyring list KEYS: Perform RCU synchronisation on keys prior to key destruction KEYS: Announce key type (un)registration KEYS: Reorganise keys Makefile KEYS: Move the key config into security/keys/Kconfig KEYS: Use the compat keyctl() syscall wrapper on Sparc64 for Sparc32 compat Yama: remove an unused variable samples/seccomp: fix dependencies on arch macros Yama: add additional ptrace scopes ...
2012-05-21Merge tag 'virtio-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus Pull virtio updates from Rusty Russell. * tag 'virtio-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: virtio: fix typo in comment virtio-mmio: Devices parameter parsing virtio_blk: Drop unused request tracking list virtio-blk: Fix hot-unplug race in remove method virtio: Use ida to allocate virtio index virtio: balloon: separate out common code between remove and freeze functions virtio: balloon: drop restore_common() 9p: disconnect channel when PCI device is removed virtio: update documentation to v0.9.5 of spec
2012-05-22virtio: fix typo in commentChen Baozi
- Delete "@request_vqs" and "@free_vqs" comments, since they are no longer in struct virtio_config_ops. - According to the macro below, "@val" should be "@v". Signed-off-by: Chen Baozi <chenbaozi@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-22virtio-mmio: Devices parameter parsingPawel Moll
This patch adds an option to instantiate guest virtio-mmio devices basing on a kernel command line (or module) parameter, for example: virtio_mmio.devices=0x100@0x100b0000:48 Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-22virtio_blk: Drop unused request tracking listAsias He
Benchmark shows small performance improvement on fusion io device. Before: seq-read : io=1,024MB, bw=19,982KB/s, iops=39,964, runt= 52475msec seq-write: io=1,024MB, bw=20,321KB/s, iops=40,641, runt= 51601msec rnd-read : io=1,024MB, bw=15,404KB/s, iops=30,808, runt= 68070msec rnd-write: io=1,024MB, bw=14,776KB/s, iops=29,552, runt= 70963msec After: seq-read : io=1,024MB, bw=20,343KB/s, iops=40,685, runt= 51546msec seq-write: io=1,024MB, bw=20,803KB/s, iops=41,606, runt= 50404msec rnd-read : io=1,024MB, bw=16,221KB/s, iops=32,442, runt= 64642msec rnd-write: io=1,024MB, bw=15,199KB/s, iops=30,397, runt= 68991msec Signed-off-by: Asias He <asias@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-22virtio-blk: Fix hot-unplug race in remove methodAsias He
If we reset the virtio-blk device before the requests already dispatched to the virtio-blk driver from the block layer are finised, we will stuck in blk_cleanup_queue() and the remove will fail. blk_cleanup_queue() calls blk_drain_queue() to drain all requests queued before DEAD marking. However it will never success if the device is already stopped. We'll have q->in_flight[] > 0, so the drain will not finish. How to reproduce the race: 1. hot-plug a virtio-blk device 2. keep reading/writing the device in guest 3. hot-unplug while the device is busy serving I/O Test: ~1000 rounds of hot-plug/hot-unplug test passed with this patch. Changes in v3: - Drop blk_abort_queue and blk_abort_request - Use __blk_end_request_all to complete request dispatched to driver Changes in v2: - Drop req_in_flight - Use virtqueue_detach_unused_buf to get request dispatched to driver Signed-off-by: Asias He <asias@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-22virtio: Use ida to allocate virtio indexAsias He
Current index allocation in virtio is based on a monotonically increasing variable "index". This means we'll run out of numbers after a while. E.g. someone crazy doing this in host side. while(1) { hot-plug a virtio device hot-unplug the virito devcie } Signed-off-by: Asias He <asias@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-22virtio: balloon: separate out common code between remove and freeze functionsAmit Shah
The remove and freeze functions have a lot of shared code; put it into a common function that gets called by both. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-22virtio: balloon: drop restore_common()Amit Shah
restore_common() was used when there were different thaw and freeze PM callbacks implemented. We removed thaw in commit f38f8387cbdc4138a492ce9f2a5f04fd3cd3cf33. restore_common() can be removed and virtballoon_restore() can itself do the restore ops. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-229p: disconnect channel when PCI device is removedSasha Levin
When a virtio_9p pci device is being removed, we should close down any active channels and free up resources, we're not supposed to BUG() if there's still an open channel since it's a valid case when removing the PCI device. Otherwise, removing the PCI device with an open channel would cause the following BUG(): [ 1184.671416] ------------[ cut here ]------------ [ 1184.672057] kernel BUG at net/9p/trans_virtio.c:618! [ 1184.672057] invalid opcode: 0000 [#1] PREEMPT SMP [ 1184.672057] CPU 3 [ 1184.672057] Pid: 5, comm: kworker/u:0 Tainted: G W 3.4.0-rc2-next-20120413-sasha-dirty #76 [ 1184.672057] RIP: 0010:[<ffffffff825c9116>] [<ffffffff825c9116>] p9_virtio_remove+0x16/0x90 [ 1184.672057] RSP: 0018:ffff88000d653ac0 EFLAGS: 00010202 [ 1184.672057] RAX: ffffffff836bfb40 RBX: ffff88000c9b2148 RCX: ffff88000d658978 [ 1184.672057] RDX: 0000000000000006 RSI: 0000000000000000 RDI: ffff880028868000 [ 1184.672057] RBP: ffff88000d653ad0 R08: 0000000000000000 R09: 0000000000000000 [ 1184.672057] R10: 0000000000000000 R11: 0000000000000001 R12: ffff880028868000 [ 1184.672057] R13: ffffffff835aa7c0 R14: ffff880041630000 R15: ffff88000d653da0 [ 1184.672057] FS: 0000000000000000(0000) GS:ffff880035a00000(0000) knlGS:0000000000000000 [ 1184.672057] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1184.672057] CR2: 0000000001181000 CR3: 000000000eba1000 CR4: 00000000000406e0 [ 1184.672057] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 x000000000117a190 *[ 1184.672057] DR3: 00000000000000** 00 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 1184.672057] Process kworker/u:0 (pid: 5, threadinfo ffff88000d652000, task ffff88000d658000) [ 1184.672057] Stack: [ 1184.672057] ffff880028868000 ffffffff836bfb40 ffff88000d653af0 ffffffff8193661b [ 1184.672057] ffff880028868008 ffffffff836bfb40 ffff88000d653b10 ffffffff81af1c81 [ 1184.672057] ffff880028868068 ffff880028868008 ffff88000d653b30 ffffffff81af257a [ 1184.795301] Call Trace: [ 1184.795301] [<ffffffff8193661b>] virtio_dev_remove+0x1b/0x60 [ 1184.795301] [<ffffffff81af1c81>] __device_release_driver+0x81/0xd0 [ 1184.795301] [<ffffffff81af257a>] device_release_driver+0x2a/0x40 [ 1184.795301] [<ffffffff81af0d48>] bus_remove_device+0x138/0x150 [ 1184.795301] [<ffffffff81aef08d>] device_del+0x14d/0x1b0 [ 1184.795301] [<ffffffff81aef138>] device_unregister+0x48/0x60 [ 1184.795301] [<ffffffff8193694d>] unregister_virtio_device+0xd/0x10 [ 1184.795301] [<ffffffff8265fc74>] virtio_pci_remove+0x2a/0x6c [ 1184.795301] [<ffffffff818a95ad>] pci_device_remove+0x4d/0x110 [ 1184.795301] [<ffffffff81af1c81>] __device_release_driver+0x81/0xd0 [ 1184.795301] [<ffffffff81af257a>] device_release_driver+0x2a/0x40 [ 1184.795301] [<ffffffff81af0d48>] bus_remove_device+0x138/0x150 [ 1184.795301] [<ffffffff81aef08d>] device_del+0x14d/0x1b0 [ 1184.795301] [<ffffffff81aef138>] device_unregister+0x48/0x60 [ 1184.795301] [<ffffffff818a36fa>] pci_stop_bus_device+0x6a/0x90 [ 1184.795301] [<ffffffff818a3791>] pci_stop_and_remove_bus_device+0x11/0x20 [ 1184.795301] [<ffffffff818c21d9>] remove_callback+0x9/0x10 [ 1184.795301] [<ffffffff81252d91>] sysfs_schedule_callback_work+0x21/0x60 [ 1184.795301] [<ffffffff810cb1a1>] process_one_work+0x281/0x430 [ 1184.795301] [<ffffffff810cb140>] ? process_one_work+0x220/0x430 [ 1184.795301] [<ffffffff81252d70>] ? sysfs_read_file+0x1c0/0x1c0 [ 1184.795301] [<ffffffff810cc613>] worker_thread+0x1f3/0x320 [ 1184.795301] [<ffffffff810cc420>] ? manage_workers.clone.13+0x130/0x130 [ 1184.795301] [<ffffffff810d30b2>] kthread+0xb2/0xc0 [ 1184.795301] [<ffffffff826783f4>] kernel_thread_helper+0x4/0x10 [ 1184.795301] [<ffffffff810deb18>] ? finish_task_switch+0x78/0xf0 [ 1184.795301] [<ffffffff82676574>] ? retint_restore_args+0x13/0x13 [ 1184.795301] [<ffffffff810d3000>] ? kthread_flush_work_fn+0x10/0x10 [ 1184.795301] [<ffffffff826783f0>] ? gs_change+0x13/0x13 [ 1184.795301] Code: c1 9e 0a 00 48 83 c4 08 5b c9 c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 54 49 89 fc 53 48 8b 9f a8 04 00 00 80 3b 00 74 0a <0f> 0b 0f 1f 84 00 00 00 00 00 48 8b 87 88 04 00 00 ff 50 30 31 [ 1184.795301] RIP [<ffffffff825c9116>] p9_virtio_remove+0x16/0x90 [ 1184.795301] RSP <ffff88000d653ac0> [ 1184.952618] ---[ end trace a307b3ed40206b4c ]--- Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-22virtio: update documentation to v0.9.5 of specRusty Russell
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-21Merge branch 'smp-hotplug-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull smp hotplug cleanups from Thomas Gleixner: "This series is merily a cleanup of code copied around in arch/* and not changing any of the real cpu hotplug horrors yet. I wish I'd had something more substantial for 3.5, but I underestimated the lurking horror..." Fix up trivial conflicts in arch/{arm,sparc,x86}/Kconfig and arch/sparc/include/asm/thread_info_32.h * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits) um: Remove leftover declaration of alloc_task_struct_node() task_allocator: Use config switches instead of magic defines sparc: Use common threadinfo allocator score: Use common threadinfo allocator sh-use-common-threadinfo-allocator mn10300: Use common threadinfo allocator powerpc: Use common threadinfo allocator mips: Use common threadinfo allocator hexagon: Use common threadinfo allocator m32r: Use common threadinfo allocator frv: Use common threadinfo allocator cris: Use common threadinfo allocator x86: Use common threadinfo allocator c6x: Use common threadinfo allocator fork: Provide kmemcache based thread_info allocator tile: Use common threadinfo allocator fork: Provide weak arch_release_[task_struct|thread_info] functions fork: Move thread info gfp flags to header fork: Remove the weak insanity sh: Remove cpu_idle_wait() ...
2012-05-21Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU changes from Ingo Molnar: "This is the v3.5 RCU tree from Paul E. McKenney: 1) A set of improvements and fixes to the RCU_FAST_NO_HZ feature (with more on the way for 3.6). Posted to LKML: https://lkml.org/lkml/2012/4/23/324 (commits 1-3 and 5), https://lkml.org/lkml/2012/4/16/611 (commit 4), https://lkml.org/lkml/2012/4/30/390 (commit 6), and https://lkml.org/lkml/2012/5/4/410 (commit 7, combined with the other commits for the convenience of the tester). 2) Changes to make rcu_barrier() avoid disrupting execution of CPUs that have no RCU callbacks. Posted to LKML: https://lkml.org/lkml/2012/4/23/322. 3) A couple of commits that improve the efficiency of the interaction between preemptible RCU and the scheduler, these two being all that survived an abortive attempt to allow preemptible RCU's __rcu_read_lock() to be inlined. The full set was posted to LKML at https://lkml.org/lkml/2012/4/14/143, and the first and third patches of that set remain. 4) Lai Jiangshan's algorithmic implementation of SRCU, which includes call_srcu() and srcu_barrier(). A major feature of this new implementation is that synchronize_srcu() no longer disturbs the execution of other CPUs. This work is based on earlier implementations by Peter Zijlstra and Paul E. McKenney. Posted to LKML: https://lkml.org/lkml/2012/2/22/82. 5) A number of miscellaneous bug fixes and improvements which were posted to LKML at: https://lkml.org/lkml/2012/4/23/353 with subsequent updates posted to LKML." * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits) rcu: Make rcu_barrier() less disruptive rcu: Explicitly initialize RCU_FAST_NO_HZ per-CPU variables rcu: Make RCU_FAST_NO_HZ handle timer migration rcu: Update RCU maintainership rcu: Make exit_rcu() more precise and consolidate rcu: Move PREEMPT_RCU preemption to switch_to() invocation rcu: Ensure that RCU_FAST_NO_HZ timers expire on correct CPU rcu: Add rcutorture test for call_srcu() rcu: Implement per-domain single-threaded call_srcu() state machine rcu: Use single value to handle expedited SRCU grace periods rcu: Improve srcu_readers_active_idx()'s cache locality rcu: Remove unused srcu_barrier() rcu: Implement a variant of Peter's SRCU algorithm rcu: Improve SRCU's wait_idx() comments rcu: Flip ->completed only once per SRCU grace period rcu: Increment upper bit only for srcu_read_lock() rcu: Remove fast check path from __synchronize_srcu() rcu: Direct algorithmic SRCU implementation rcu: Introduce rcutorture testing for rcu_barrier() timer: Fix mod_timer_pinned() header comment ...
2012-05-21Merge branch 'core-locking-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core locking updates from Ingo Molnar: "This update: - extends and simplifies x86 NMI callback handling code to enhance and fix the HP hw-watchdog driver - simplifies the x86 NMI callback handling code to fix a kmemcheck bug. - enhances the hung-task debugger" * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/nmi: Fix the type of the nmiaction.flags field x86/nmi: Fix page faults by nmiaction if kmemcheck is enabled x86/nmi: Add new NMI queues to deal with IO_CHK and SERR watchdog, hpwdt: Remove priority option for NMI callback hung task debugging: Inject NMI when hung and going to panic
2012-05-21Merge branch 'core-iommu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull iommu core changes from Ingo Molnar: "The IOMMU changes in this cycle are mostly about factoring out Intel-VT-d specific IRQ remapping details and introducing struct irq_remap_ops, in preparation for AMD specific hardware." * 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: iommu: Fix off by one in dmar_get_fault_reason() irq_remap: Fix the 'sub_handle' uninitialized warning irq_remap: Fix UP build failure irq_remap: Fix compiler warning with CONFIG_IRQ_REMAP=y iommu: rename intr_remapping.[ch] to irq_remapping.[ch] iommu: rename intr_remapping references to irq_remapping x86, iommu/vt-d: Clean up interfaces for interrupt remapping iommu/vt-d: Convert MSI remapping setup to remap_ops iommu/vt-d: Convert free_irte into a remap_ops callback iommu/vt-d: Convert IR set_affinity function to remap_ops iommu/vt-d: Convert IR ioapic-setup to use remap_ops iommu/vt-d: Convert missing apic.c intr-remapping call to remap_ops iommu/vt-d: Make intr-remapping initialization generic iommu: Rename intr_remapping files to intel_intr_remapping
2012-05-21Merge branch 'core-debugobjects-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core/debugobjects changes from Ingo Molnar: "Not much happened: it includes a cleanup and an irq latency reduction fixlet." * 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: debugobjects: Fill_pool() returns void now debugobjects: printk with irqs enabled debugobjects: Remove unused return value from fill_pool()
2012-05-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmwLinus Torvalds
Pull GFS2 changes from Steven Whitehouse. * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw: (24 commits) GFS2: Fix quota adjustment return code GFS2: Add rgrp information to block_alloc trace point GFS2: Eliminate unused "new" parameter to gfs2_meta_indirect_buffer GFS2: Update glock doc to add new stats info GFS2: Update main gfs2 doc GFS2: Remove redundant metadata block type check GFS2: Fix sgid propagation when using ACLs GFS2: eliminate log elements and simplify GFS2: Eliminate vestigial sd_log_le_rg GFS2: Eliminate needless parameter from function gfs2_setbit GFS2: Log code fixes GFS2: Remove unused argument from gfs2_internal_read GFS2: Remove bd_list_tr GFS2: Remove duplicate log code GFS2: Clean up log write code path GFS2: Use variable rather than qa to determine if unstuff necessary GFS2: Change variable blk to biblk GFS2: Fix function parameter comments in rgrp.c GFS2: Eliminate offset parameter to gfs2_setbit GFS2: Use slab for block reservation memory ...
2012-05-21Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu Pull m68knommu tree from Greg Ungerer: "More merge and clean up of MMU and non-MMU common files, namely signal.c and dma.c. There is also a simplification of the ColdFire GPIO setup tables. Using a couple of simple macros we make the init tables really small and easy to read, and save a couple of thousand lines of code. Also a move of all the ColdFire subarch support files into the existing coldfire directory. The sub-directories just ended up duplicating Makefiles and now only contain really simple pieces of code. This saves quite a few lines of code too. As always a couple of bugs fixes thrown in too. Oh and a new defconfig for the ColdFire platforms that support having the MMU enabled." * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (39 commits) m68k: add a defconfig for the M5475EVB ColdFire with MMU board m68knommu: unaligned.h fix for M68000 core m68k: merge the MMU and non-MMU versions of the arch dma code m68knommu: reorganize the no-MMU cache flushing to match m68k m68knommu: move the 54xx platform code into the common ColdFire code directory m68knommu: move the 532x platform code into the common ColdFire code directory m68knommu: move the 5407 platform code into the common ColdFire code directory m68knommu: move the 5307 platform code into the common ColdFire code directory m68knommu: move the 528x platform code into the common ColdFire code directory m68knommu: move the 527x platform code into the common ColdFire code directory m68knommu: move the 5272 platform code into the common ColdFire code directory m68knommu: move the 5249 platform code into the common ColdFire code directory m68knommu: move the 523x platform code into the common ColdFire code directory m68knommu: move the 520x platform code into the common ColdFire code directory m68knommu: move the 5206 platform code into the common ColdFire code directory m68knommu: simplify the ColdFire 5407 GPIO struct setup m68knommu: simplify the ColdFire 532x GPIO struct setup m68knommu: simplify the ColdFire 5307 GPIO struct setup m68knommu: simplify the ColdFire 528x GPIO struct setup m68knommu: simplify the ColdFire 527x GPIO struct setup ...
2012-05-21Revert "vfs: remove unnecessary d_unhashed() check from __d_lookup_rcu"Linus Torvalds
This reverts commit 8c01a529b861ba97c7d78368e6a5d4d42e946f75. It turns out the d_unhashed() check isn't unnecessary after all: while it's true that unhashing will increment the sequence numbers, that does not necessarily invalidate the RCU lookup, because it might have seen the dentry pointer (before it got unhashed), but by the time it loaded the sequence number, it could have seen the *new* sequence number (after it got unhashed). End result: we might look up an unhashed dentry that is about to be freed, with the sequence number never indicating anything bad about it. So checking that the dentry is still hashed (*after* reading the sequence number) is indeed the proper fix, and was never unnecessary. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-22Merge branch 'master' of git://git.infradead.org/users/eparis/selinux into nextJames Morris
Per pull request, for 3.5.
2012-05-21Merge tag 'rdma-for-3.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull InfiniBand/RDMA changes from Roland Dreier: - Add ocrdma hardware driver for Emulex IB-over-Ethernet adapters - Add generic and mlx4 support for "raw" QPs: allow suitably privileged applications to send and receive arbitrary packets directly to/from the hardware - Add "doorbell drop" handling to the cxgb4 driver - A fairly large batch of qib hardware driver changes - A few fixes for lockdep-detected issues - A few other miscellaneous fixes and cleanups Fix up trivial conflict in drivers/net/ethernet/emulex/benet/be.h. * tag 'rdma-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (53 commits) RDMA/cxgb4: Include vmalloc.h for vmalloc and vfree IB/mlx4: Fix mlx4_ib_add() error flow IB/core: Fix IB_SA_COMP_MASK macro IB/iser: Fix error flow in iser ep connection establishment IB/mlx4: Increase the number of vectors (EQs) available for ULPs RDMA/cxgb4: Add query_qp support RDMA/cxgb4: Remove kfifo usage RDMA/cxgb4: Use vmalloc() for debugfs QP dump RDMA/cxgb4: DB Drop Recovery for RDMA and LLD queues RDMA/cxgb4: Disable interrupts in c4iw_ev_dispatch() RDMA/cxgb4: Add DB Overflow Avoidance RDMA/cxgb4: Add debugfs RDMA memory stats cxgb4: DB Drop Recovery for RDMA and LLD queues cxgb4: Common platform specific changes for DB Drop Recovery cxgb4: Detect DB FULL events and notify RDMA ULD RDMA/cxgb4: Drop peer_abort when no endpoint found RDMA/cxgb4: Always wake up waiters in c4iw_peer_abort_intr() mlx4_core: Change bitmap allocator to work in round-robin fashion RDMA/nes: Don't call event handler if pointer is NULL RDMA/nes: Fix for the ORD value of the connecting peer ...
2012-05-21Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI misc update from James Bottomley: "The patch contains the usual assortment of driver updates (be2iscsi, bfa, bnx2i, fcoe, hpsa, isci, lpfc, megaraid, mpt2sas, pm8001, sg) plus an assortment of other changes and fixes. Also new is the fact that the isci update is delivered as a git merge (with signed tag)." * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (158 commits) isci: End the RNC resumption wait when the RNC is destroyed. isci: Fixed RNC bug that lost the suspension or resumption during destroy isci: Fix RNC AWAIT_SUSPENSION->INVALIDATING transition. isci: Manage the IREQ_NO_AUTO_FREE_TAG under scic_lock. isci: Remove obviated host callback list. isci: Check IDEV_GONE before performing abort path operations. isci: Restore the ATAPI device RNC management code. isci: Don't wait for an RNC suspend if it's being destroyed. isci: Change the phy control and link reset interface for HW reasons. isci: Added timeouts to RNC suspensions in the abort path. isci: Add protocol indicator for TMF requests. isci: Directly control IREQ_ABORT_PATH_ACTIVE when completing TMFs. isci: Wait for RNC resumption before leaving the abort path. isci: Fix RNC suspend call for SCI_RESUMING state. isci: Manage tag releases differently when aborting tasks. isci: Callbacks to libsas occur under scic_lock and are synchronized. isci: When in the abort path, defeat other resume calls until done. isci: Implement waiting for suspend in the abort path. isci: Make sure all TCs are terminated and cleaned in LUN reset. isci: Manage the LLHANG timer enable/disable per-device. ...
2012-05-21Merge branch 'usb-target-merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull usb-gadget scsi-target merge from Nicholas Bellinger: "As promised, here is the pull request for Sebastian's usb-gadget target UASP / BOT driver for v3.5-rc1. This code has been in linux-next for a number of weeks, and is now ready for an initial merge. This fabric uses the target framework to provide a usb gadget device. This gadget supports the USB Attached SCSI Protocol (UASP) and Bulk Only Transfers (BOT or BBB). BOT is the primary interface, UAS is the alternative interface. Note this series is dependent upon a single target core patch for adding se_cmd->unknown_data_length in target-pending/for-next, that got merged in the parent. Kudos to Sebastian for making this driver happen so easily, and for his patches to improve usb-core and target core along the way to his goal. Also thanks to Felipe + Greg-KH for their help in getting this driver ready for mainline." * 'usb-target-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: usb-gadget: Initial merge of target module for UASP + BOT
2012-05-21Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull scsi-target changes from Nicholas Bellinger: "There has been lots of work in existing code in a number of areas this past cycle. The major highlights have been: * Removal of transport_do_task_sg_chain() from core + fabrics (Roland) * target-core: Removal of se_task abstraction from target-core and enforce hw_max_sectors for pSCSI backends (hch) * Re-factoring of iscsi-target tx immediate/response queues (agrover) * Conversion of iscsi-target back to using target core memory allocation logic (agrover) We've had one last minute iscsi-target patch go into for-next to address a nasty regression bug related to the target core allocation logic conversion from agrover that is not included in friday's linux-next build, but has been included in this series. On the new fabric module code front for-3.5, here is a brief status update for the three currently in flight this round: * usb-gadget target driver: Sebastian Siewior's driver for supporting usb-gadget target mode operation. This will be going out as a separate PULL request from target-pending/usb-target-merge with subsystem maintainer ACKs. There is one minor target-core patch in this series required to function. * sbp ieee-1394/firewire target driver: Chris Boot's driver for supportting the Serial Block Protocol (SBP) across IEEE-1394 Firewire hardware. This will be going out as a separate PULL request from target-pending/sbp-target-merge with two additional drivers/firewire/ patches w/ subsystem maintainer ACKs. * qla2xxx LLD target mode infrastructure changes + tcm_qla2xxx: The Qlogic >= 24xx series HW target mode LLD infrastructure patch-set and tcm_qla2xxx fabric driver. Support for FC target mode using qla2xxx LLD code has been officially submitted by Qlogic to James below, and is currently outstanding but not yet merged into scsi.git/for-next.. [PATCH 00/22] qla2xxx: Updates for scsi "misc" branch http://www.spinics.net/lists/linux-scsi/msg59350.html Note there are *zero* direct dependencies upon this for-next series for the qla2xxx LLD target + tcm_qla2xxx patches submitted above, and over the last days the target mode team has been tracking down an tcm_qla2xxx specific active I/O shutdown bug that appears to now be almost squashed for 3.5-rc-fixes." * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (47 commits) iscsi-target: Fix iov_count calculation bug in iscsit_allocate_iovecs iscsi-target: remove dead code in iscsi_check_valuelist_for_support target: Handle ATA_16 passthrough for pSCSI backend devices target: Add MI_REPORT_TARGET_PGS ext. header + implict_trans_secs attribute target: Fix MAINTENANCE_IN service action CDB checks to use lower 5 bits target: add support for the WRITE_VERIFY command target: make target_put_session void target: cleanup transport_execute_tasks() target: Remove max_sectors device attribute for modern se_task less code target: lock => unlock typo in transport_lun_wait_for_tasks target: Enforce hw_max_sectors for SCF_SCSI_DATA_SG_IO_CDB target: remove the t_se_count field in struct se_cmd target: remove the t_task_cdbs_ex_left field in struct se_cmd target: remove the t_task_cdbs_left field in struct se_cmd target: remove struct se_task target: move the state and execute lists to the command target: simplify command to task linkage target: always allocate a single task target: replace ->execute_task with ->execute_cmd target: remove the task_sectors field in struct se_task ...
2012-05-21Merge tag 'for-3.5' of git://openrisc.net/jonas/linuxLinus Torvalds
Pull OpenRISC updates from Jonas Bonn: "A couple of cleanups for the OpenRISC architecture: - Implement IRQ domains - Use DMA mapping framework completely and catch up with recent changes to dma_map_ops - One bug fix to the "or1k_atomic" syscall to not clobber call-saved registers - OOM killer patches to the pagefault handler ported from the X86 arch - ...and a couple of header file cleanups" * tag 'for-3.5' of git://openrisc.net/jonas/linux: openrisc: use scratch regs in atomic syscall openrisc: provide dma_map_ops openrisc: header file cleanups openrisc/mm/fault.c: Port OOM changes to do_page_fault openrisc: remove unnecessary includes openrisc: implement irqdomains
2012-05-21Merge tag 'pinctrl-for-v3.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control subsystem changes from Linus Walleij: - Generic Device Tree bindings and hooks for drivers so we can move over modern drivers to using this. - Device Tree bindings for Tegra SoCs. - Funneling some devicetree helper code for the drivers/of subsystem. - New pin control drivers for: * Freescale MXS * Freescale i.MX51 * Freescale i.MX53 All of these use Device Tree bindings. - Dummy pinctrl handles for stepwise migration to pinctrl, akin to dummy regulators. - Minor non-urgent fixes and improvments. Fix up trivial conflicts in Documentation/driver-model/devres.txt and drivers/pinctrl/core.c, * tag 'pinctrl-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (46 commits) pinctrl: pinctrl-imx: add imx51 pinctrl driver pinctrl: pinctrl-imx: add imx53 pinctrl driver pinctrl: pinctrl-pxa3xx: remove empty pinmux disable function pinctrl: pinctrl-mxs: remove empty pinmux disable function pinctrl: pinctrl-imx: remove empty pinmux disable function pinctrl: make pinmux disable function optional pinctrl: a minor error checking improvement for pinconf pinctrl: mxs: skip gpio nodes for group creation pinctrl: mxs: create group for pin config node pinctrl: (cosmetic) fix two entries in DocBook comments pinctrl: add more info to error msgs in pin_request pinctrl: add pinctrl-mxs support pinctrl: pinctrl-imx: add imx6q pinctrl driver pinctrl: pinctrl-imx: add imx pinctrl core driver dt: add of_get_child_count helper function pinctrl: support gpio request deferred probing pinctrl: add pinctrl_provide_dummies interface for platforms to use pinctrl: enhance reporting of errors when loading from DT pinctrl: add kerneldoc for pinctrl_ops device tree functions pinctrl: propagate map validation errors ...
2012-05-21Merge tag 'regulator-3.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator updates from Mark Brown: "The major thing here is the addition of some helpers to factor code out of drivers, making a fair proportion of regulators much more just data rather than code which is nice. - Helpers in the core for regulators using regmap, providing generic implementations of the enable and voltage selection operations which just need data to describe them in the drivers. - Split out voltage mapping and voltage setting, allowing many more drivers to take advantage of the infrastructure for selectors. - Loads and loads of cleanups from Axel Lin once again, including many changes to take advantage of the above new framework features - New drivers for Ricoh RC5T583, TI TPS62362, TI TPS62363, TI TPS65913, TI TWL6035 and TI TWL6037. Some of the registration changes to support the core refactoring caused so many conflicts that eventually topic branches were abandoned for this release." * tag 'regulator-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (227 commits) regulator: tps65910: use of_node of matched regulator being register regulator: tps65910: dt: support when "regulators" node found regulator: tps65910: add error message in case of failure regulator: tps62360: dt: initialize of_node param for regulator register. regulator: tps65910: use devm_* for memory allocation regulator: tps65910: use small letter for regulator names mfd: tpx6586x: Depend on regulator regulator: regulator for Palmas Kconfig regulator: regulator driver for Palmas series chips regulator: Enable Device Tree for the db8500-prcmu regulator driver regulator: db8500-prcmu: Separate regulator registration from probe regulator: ab3100: Use regulator_map_voltage_iterate() regulator: tps65217: Convert to set_voltage_sel and map_voltage regulator: Enable the ab8500 for Device Tree regulator: ab8500: Split up probe() into manageable pieces regulator: max8925: Remove check_range function and max_uV from struct rc5t583_regulator_info regulator: max8649: Remove unused check_range() function regulator: rc5t583: Remove max_uV from struct rc5t583_regulator_info regulator: da9052: Convert to set_voltage_sel and map_voltage regulator: max8952: Use devm_kzalloc ...
2012-05-21Merge tag 'regmap-3.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap updates from Mark Brown: "A surprisingly large series of updates for regmap this time, mostly due to all the work Stephen Warren has done to add support for MMIO buses. This wasn't really the target for the framework but it turns out that there's a reasonable number of cases where it's very helpful to use the register cache support to allow the register map to remain available while the device is suspended. - A MMIO bus implementation, contributed by Stephen Warren. Currently this is limited to 32 bit systems and native endian registers. - Support for naming register maps, mainly intended for MMIO devices with multiple register banks. This was also contributed by Stephen Warren. - Support for register striding, again contributed by Stephen Warren and mainly intended for use with MMIO as typically the registers will be a fixed size but byte addressed. - irqdomain support for the generic regmap irq_chip, including support for dynamically allocate interrupt numbers. - A function dev_get_regmap() which allows frameworks using regmap to obtain the regmap for a device from the struct device, making life a little simpler for them. - Updates to regmap-irq to support more chips (contributed by Graeme Gregory) and to use irqdomains. - Support for devices with 24 bit register addresses. The striding support collided with all the topic branches so the branches look a bit messy and eventually I just gave up. There's also the TI Palmas driver and a couple of other isolated MFD patches that all depend on new regmap features so are being merged here." * tag 'regmap-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (24 commits) mfd: palmas PMIC device support Kconfig mfd: palmas PMIC device support regmap: Fix typo in IRQ register striding mfd: wm8994: Update to fully use irq_domain regmap: add support for non contiguous status to regmap-irq regmap: Convert regmap_irq to use irq_domain regmap: Pass back the allocated regmap IRQ controller data mfd: da9052: Fix genirq abuse regmap: Implement dev_get_regmap() regmap: Devices using format_write don't support bulk operations regmap: Converts group operation into single read write operations regmap: Cache single values read from the chip regmap: fix compile errors in regmap-irq.c due to stride changes regmap: implement register striding regmap: fix compilation when !CONFIG_DEBUG_FS regmap: allow regmap instances to be named regmap: validate regmap_raw_read/write val_len regmap: mmio: remove some error checks now in the core regmap: mmio: convert some error returns to BUG() regmap: add MMIO bus support ...
2012-05-21Merge tag 'pci-for-3.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI changes from Bjorn Helgaas: - Host bridge cleanups from Yinghai - Disable Bus Master bit on PCI device shutdown (kexec-related) - Stratus ftServer fix - pci_dev_reset() locking fix - IvyBridge graphics erratum workaround * tag 'pci-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (21 commits) microblaze/PCI: fix "io_offset undeclared" error x86/PCI: only check for spinlock being held in SMP kernels resources: add resource_overlaps() PCI: fix uninitialized variable 'cap_mask' MAINTAINERS: update PCI git tree and patchwork PCI: disable Bus Master on PCI device shutdown PCI: work around IvyBridge internal graphics FLR erratum x86/PCI: fix unused variable warning in amd_bus.c PCI: move mutex locking out of pci_dev_reset function PCI: work around Stratus ftServer broken PCIe hierarchy x86/PCI: merge pcibios_scan_root() and pci_scan_bus_on_node() x86/PCI: dynamically allocate pci_root_info for native host bridge drivers x86/PCI: embed pci_sysdata into pci_root_info on ACPI path x86/PCI: embed name into pci_root_info struct x86/PCI: add host bridge resource release for _CRS path x86/PCI: refactor get_current_resources() PCI: add host bridge release support PCI: add generic device into pci_host_bridge struct PCI: rename pci_host_bridge() to find_pci_root_bridge() x86/PCI: fix memleak with get_current_resources() ...
2012-05-21vfs: be even more careful about dentry RCU name lookupsLinus Torvalds
Miklos Szeredi points out that we need to also worry about memory odering when doing the dentry name comparison asynchronously with RCU. In particular, doing a rename can do a memcpy() of one dentry name over another, and we want to make sure that any unlocked reader will always see the proper terminating NUL character, so that it won't ever run off the allocation. Rather than having to be extra careful with the name copy or at lookup time for each character, this resolves the issue by making sure that all names that are inlined in the dentry always have a NUL character at the end of the name allocation. If we do that at dentry allocation time, we know that no future name copy will ever change that final NUL to anything else, so there are no memory ordering issues. So even if a concurrent rename ends up overwriting the NUL character that terminates the original name, we always know that there is one final NUL at the end, and there is no worry about the lockless RCU lookup traversing the name too far. The out-of-line allocations are never copied over, so we can just make sure that we write the name (with terminating NULL) and do a write barrier before we expose the name to anything else by setting it in the dentry. Reported-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Nick Piggin <npiggin@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21vfs: make AIO use the proper rw_verify_area() area helpersLinus Torvalds
We had for some reason overlooked the AIO interface, and it didn't use the proper rw_verify_area() helper function that checks (for example) mandatory locking on the file, and that the size of the access doesn't cause us to overflow the provided offset limits etc. Instead, AIO did just the security_file_permission() thing (that rw_verify_area() also does) directly. This fixes it to do all the proper helper functions, which not only means that now mandatory file locking works with AIO too, we can actually remove lines of code. Reported-by: Manish Honap <manish_honap_vit@yahoo.co.in> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull core ARM updates from Russell King: "This is the bulk of the core ARM updates for this merge window. Included in here is a different way to handle the VIVT cache flushing on context switch, which should allow scheduler folk to remove a special case in their core code. We have architectured timer support here, which is a set of timers specified by the ARM architecture for future SoCs. So we should see less variability in timer design going forward. The last big thing here is my cleanup to the way we handle PCI across ARM, fixing some oddities in some platforms which hadn't realised there was a way to deal with their private data already built in to our PCI backend. I've also removed support for the ARMv3 architecture; it hasn't worked properly for years so it seems pointless to keep it around." * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (47 commits) ARM: PCI: remove per-pci_hw list of buses ARM: PCI: dove/kirkwood/mv78xx0: use sys->private_data ARM: PCI: provide a default bus scan implementation ARM: PCI: get rid of pci_std_swizzle() ARM: PCI: versatile: fix PCI interrupt setup ARM: PCI: integrator: use common PCI swizzle ARM: 7416/1: LPAE: Remove unused L_PTE_(BUFFERABLE|CACHEABLE) macros ARM: 7415/1: vfp: convert printk's to pr_*'s ARM: decompressor: avoid speculative prefetch from non-RAM areas ARM: Remove ARMv3 support from decompressor ARM: 7413/1: move read_{boot,persistent}_clock to the architecture level ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs ARM: 7363/1: DEBUG_LL: limit early mapping to the minimum ARM: 7391/1: versatile: add some auxdata for device trees ARM: 7389/2: plat-versatile: modernize FPGA IRQ controller AMBA: get rid of last two uses of NO_IRQ ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails ARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held ARM: 7404/1: cmpxchg64: use atomic64 and local64 routines for cmpxchg64 ARM: 7347/1: SCU: use cpu_logical_map for per-CPU low power mode ...
2012-05-21Merge branch 'clkdev' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull clkdev updates from Russell King: "This supplements clkdev with a device-managed API, allowing drivers cleanup paths to be simplified. We also optimize clk_find() so that it exits as soon as it finds a perfect match, and we provide a way to minimise the amount of code platforms need to register clkdev entries. Some of the code in arm-soc depends on these changes." * 'clkdev' of git://git.linaro.org/people/rmk/linux-arm: CLKDEV: provide helpers for common clock framework ARM: 7392/1: CLKDEV: Optimize clk_find() ARM: 7376/1: clkdev: Implement managed clk_get()
2012-05-21Fix blocking allocations called very early during bootupLinus Torvalds
During early boot, when the scheduler hasn't really been fully set up, we really can't do blocking allocations because with certain (dubious) configurations the "might_resched()" calls can actually result in scheduling events. We could just make such users always use GFP_ATOMIC, but quite often the code that does the allocation isn't really aware of the fact that the scheduler isn't up yet, and forcing that kind of random knowledge on the initialization code is just annoying and not good for anybody. And we actually have a the 'gfp_allowed_mask' exactly for this reason: it's just that the kernel init sequence happens to set it to allow blocking allocations much too early. So move the 'gfp_allowed_mask' initialization from 'start_kernel()' (which is some of the earliest init code, and runs with preemption disabled for good reasons) into 'kernel_init()'. kernel_init() is run in the newly created thread that will become the 'init' process, as opposed to the early startup code that runs within the context of what will be the first idle thread. So by the time we reach 'kernel_init()', we know that the scheduler must be at least limping along, because we've already scheduled from the idle thread into the init thread. Reported-by: Steven Rostedt <rostedt@goodmis.org> Cc: David Rientjes <rientjes@google.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21net: drop NET dependency from HAVE_BPF_JITSam Ravnborg
There is no point having the NET dependency on the select target, as it forces all users to depend on NET to tell they support BPF_JIT. Move the config option to the bottom of the file - this could be a nice place also for future "selectable" config symbols. Fix up all users to drop the dependency on NET now that it is not required to supress warnings for non-NET builds. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin Pull blackfin changes from Bob Liu: "The biggest change was added an new processor(bf60x series). Bf60x series processor of blackfin can up to 1GHz with Hardware Support for HD Video Analytics, it use the same blackfin ISA but with some changes on system buses, interrupt controller and peripheral devices. Added dir arch/blackfin/mach-bf609/ and did some changes to the framework made linux working fine on the reference board bf609-ezkit now." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin: (41 commits) blackfin: fix build after add bf60x mach/pm.h blackfin: twi: include linux/i2c.h blackfin: bf60x: add head file for crc controller blackfin: bf60x: twi: work around temporary anomaly 0501001 blackfin: twi: Move TWI MMR access macro to twi head file blackfin: twi: Move TWI peripheral pin request array to platform data blackfin: bf60x: anomaly: Add a temporary anomaly 0501001 blackfin: bf60x: Rename the DDR controller macro blackfin: mach-bf609: pm: cleanup bfin_deepsleep blackfin: bf60x: cleanup get clock code blackfin: bf60x: pm: Add a debug option to calculate kernel wakeup time. blackfin: bf60x: add wakeup source select blackfin: bf60x: make clock changeable in kernel menuconfig blackfin:mach-bf609: fix norflash for bf609-ezkit blackfin: mach-bf609: add can_wakeup to ethernet device blackfin: remove redundant CONFIG_BF60x macro blackfin: rotary: Add pm_wakeup flag to platform data structure. bfin_gpio: fix bf548-ezkit kernel fail to boot bfin_dma: fix initcall return error in proc_dma_init() Blackfin: delete fork func ...
2012-05-21Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds
Pull c6x updates from Mark Salter: "Clean up some c6x Kconfig items and add support for Elf FDPIC loader." * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: C6X: remove unused config items C6X: add support to build with BINFMT_ELF_FDPIC C6X: change main arch kbuild symbol
2012-05-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k updates from Geert Uytterhoeven. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Setup CROSS_COMPILE at the top m68k: Correct the Atari ALLOWINT definition m68k/video: Create <asm/vga.h> m68k: Make sure {read,write}s[bwl]() are always defined m68k/mm: Port OOM changes to do_page_fault() scsi/atari: Make more functions static scsi/atari: Revive "atascsi=" setup option net/ariadne: Improve debug prints m68k/atari: Change VME irq numbers from unsigned long to unsigned int m68k/amiga: Use arch_initcall() for registering platform devices m68k/amiga: Add error checks when registering platform devices m68k/amiga: Mark z_dev_present() __init m68k: Remove unused MAX_NOINT_IPL definition
2012-05-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: "Just a random collection of bug-fixes and cleanups, nothing new in this merge request." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (46 commits) s390/ap: Fix wrong or missing comments s390/ap: move receive callback to message struct s390/dasd: re-prioritize partition detection message s390/qeth: reshuffle initialization s390/qeth: cleanup drv attr usage s390/claw: cleanup drv attr usage s390/lcs: cleanup drv attr usage s390/ctc: cleanup drv attr usage s390/ccwgroup: remove ccwgroup_create_from_string s390/qeth: stop using struct ccwgroup driver for discipline callbacks s390/qeth: switch to ccwgroup_create_dev s390/claw: switch to ccwgroup_create_dev s390/lcs: switch to ccwgroup_create_dev s390/ctcm: switch to ccwgroup_create_dev s390/ccwgroup: exploit ccwdev_by_dev_id s390/ccwgroup: introduce ccwgroup_create_dev s390: fix race on TIF_MCCK_PENDING s390/barrier: make use of fast-bcr facility s390/barrier: cleanup barrier functions s390/claw: remove "eieio" calls ...
2012-05-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-nextLinus Torvalds
Pull sparc updates from David Miller: 1) Kill off support for sun4c and Cypress sun4m chips. And as a result we were able to also kill off that ugly btfixup thing that required multi-stage links of the final vmlinux image in the Kbuild system. This should make the kbuild maintainers really happy. Thanks a lot to Sam Ravnborg for his tireless efforts to get this going. 2) Convert sparc64 to nobootmem. I suspect now with sparc32 being a lot cleaner, it should be able to fall in line and modernize in this area too. 3) Make sparc32 use generic clockevents, from Tkhai Kirill. [ I fixed up the BPF rules, and tried to clean up the build rules too. But I don't have - or want - a sparc cross-build environment, so the BPF rule bug and the related build cleanup was all done with just a bare "make -n" pseudo-test. - Linus ] * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (110 commits) sparc32: use flushi when run-time patching in per_cpu_patch sparc32: fix cpuid_patch run-time patching sparc32: drop unused inline functions in srmmu.c sparc32: drop unused functions in pgtsrmmu.h sparc32,leon: move leon mmu functions to leon_mm.c sparc32,leon: remove duplicate definitions in leon.h sparc32,leon: remove duplicate UART register definitions sparc32,leon: move leon ASI definitions to asi.h sparc32: move trap table to a separate file sparc64: renamed ttable.S to ttable_64.S sparc32: Remove asm/sysen.h header. sparc32: Delete asm/smpprim.h sparc32: Remove unused empty_bad_page{,_table} declarations. sparc32: Kill boot_cpu_id4 sparc32: Move GET_PROCESSOR*_ID() out of asm/asmmacro.h sparc32: Remove completely unused code from asm/cache.h sparc32: Add ucmpdi2.o to obj-y instead of lib-y. sparc32: add ucmpdi2 sparc: introduce arch/sparc/Kbuild sparc: remove obsolete documentation ...
2012-05-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking changes from David Miller: 1) Get rid of the error prone NLA_PUT*() macros that used an embedded goto. 2) Kill off the token-ring and MCA networking drivers, from Paul Gortmaker. 3) Reduce high-order allocations made by datagram AF_UNIX sockets, from Eric Dumazet. 4) Add PTP hardware clock support to IGB and IXGBE, from Richard Cochran and Jacob Keller. 5) Allow users to query timestamping capabilities of a card via ethtool, from Richard Cochran. 6) Add loadbalance mode to the teaming driver, from Jiri Pirko. Part of this is that we can now have BPF filters not attached to sockets, and the loadbalancing function is calculated using one. 7) Francois Romieu went through the network drivers removing gratuitous uses of netdev->base_addr, perhaps some day we can remove it completely but it's used for ISA probing still. 8) Add a BPF JIT for sparc. I know, who cares, right? :-) 9) Move networking sysctl registry away from using the compatability mode interfaces in the sysctl code. From Eric W Biederman. 10) Pavel Emelyanov added a way to save and restore TCP socket state via TCP_REPAIR, TCP_REPAIR_QUEUE, and TCP_QUEUE_SEQ socket options as well as a way to forcefully bind a socket to a port via the sk->sk_reuse value SK_FORCE_REUSE. There is also a TCP_REPAIR_OPTIONS which allows to reinstante the TCP options enabled on the connection. 11) Several enhancements from Eric Dumazet that, in particular, can enhance splice performance on TCP sockets significantly. a) Reset the offset of the per-socket sendmsg page when we know we're the only use of the page in linear_to_page(). b) Add facilities such that skb->data can be backed a page rather than SLAB kmalloc'd memory. In particular devices which were receiving into linear RX buffers can now end up providing paged data. The big result is that code like splice and GRO do not have to copy any more. 12) Allow a pure sender to more gracefully handle ACK backlogs in TCP. What can happen at high rates is that the sender hasn't grown his receive buffer limits at all (he's not receiving data so really doesn't need to), but the non-data ACKs consume receive buffer space. sk_add_backlog() is too aggressive in dropping frames in this case, so relax it's requirements by using the receive buffer plus the send buffer limit as the backlog limit instead of just the former. Also from Eric Dumazet. 13) Add ipv6 support to L2TP, from Benjamin LaHaise, James Chapman, and Chris Elston. 14) Implement TCP early retransmit (RFC 5827), from Yuchung Cheng. Basically, we can start fast retransmit before hiting the dupack threshold under certain conditions. 15) New CODEL active queue management packet scheduler, from Eric Dumazet based upon initial work by Dave Taht. Basically, the big feature is that packets are dropped (or ECN bits are set) based upon how long packets live in the queue, rather than the queue length (which is what RED uses). * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1341 commits) drivers/net/stmmac: seq_file fix memory leak ipv6/exthdrs: strict Pad1 and PadN check USB: qmi_wwan: Add ZTE (Vodafone) K3520-Z USB: qmi_wwan: Add ZTE (Vodafone) K3765-Z USB: qmi_wwan: Make forced int 4 whitelist generic net/ipv4: replace simple_strtoul with kstrtoul net/ipv4/ipconfig: neaten __setup placement net: qmi_wwan: Add Vodafone/Huawei K5005 support net: cdc_ether: Add ZTE WWAN matches before generic Ethernet ipv6: use skb coalescing in reassembly ipv4: use skb coalescing in defragmentation net: introduce skb_try_coalesce() net:ipv6:fixed space issues relating to operators. net:ipv6:fixed a trailing white space issue. ipv6: disable GSO on sockets hitting dst_allfrag tg3: use netdev_alloc_frag() API net: napi_frags_skb() is static ppp: avoid false drop_monitor false positives ipv6: bool/const conversions phase2 ipx: Remove spurious NULL checking in ipx_ioctl(). ...
2012-05-21Merge branches 'core', 'cxgb4', 'ipath', 'iser', 'lockdep', 'mlx4', 'nes', ↵Roland Dreier
'ocrdma', 'qib' and 'raw-qp' into for-linus
2012-05-21RDMA/cxgb4: Include vmalloc.h for vmalloc and vfreeVipul Pandya
Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-05-21Merge branch 'dentry-cleanups' (dcache access cleanups and optimizations)Linus Torvalds
This branch simplifies and clarifies the dcache lookup, and allows us to do certain nice optimizations when comparing dentries. It also cleans up the interface to __d_lookup_rcu(), especially around passing the inode information around. * dentry-cleanups: vfs: make it possible to access the dentry hash/len as one 64-bit entry vfs: move dentry name length comparison from dentry_cmp() into callers vfs: do the careful dentry name access for all dentry_cmp cases vfs: remove unnecessary d_unhashed() check from __d_lookup_rcu vfs: clean up __d_lookup_rcu() and dentry_cmp() interfaces
2012-05-21Merge branch 'vfs-cleanups' (random vfs cleanups)Linus Torvalds
This teaches vfs_fstat() to use the appropriate f[get|put]_light functions, allowing it to avoid some unnecessary locking for the common case. More noticeably, it also cleans up and simplifies the "getname_flags()" function, which now relies on the architecture strncpy_from_user() doing all the user access checks properly, instead of hacking around the fact that on x86 it didn't use to do it right (see commit 92ae03f2ef99: "x86: merge 32/64-bit versions of 'strncpy_from_user()' and speed it up"). * vfs-cleanups: VFS: make vfs_fstat() use f[get|put]_light() VFS: clean up and simplify getname_flags() x86: make word-at-a-time strncpy_from_user clear bytes at the end
2012-05-21Merge branch 'stat-cleanups' (clean up copying of stat info to user space)Linus Torvalds
This makes cp_new_stat() a bit more readable, and avoids having to memset() the whole structure just to fill in a couple of padding fields. This is another result of me looking at code generation of functions that show up high on certain kernel profiles, and just going "Oh, let's just clean that up". Architectures that don't supply the #define to fill just the padding fields will still fall back to memset(). * stat-cleanups: vfs: don't force a big memset of stat data just to clear padding fields vfs: de-crapify "cp_new_stat()" function
2012-05-21Merge branch 'vm-cleanups' (unmap_vma() interface cleanup)Linus Torvalds
This series sanitizes the interface to unmap_vma(). The crazy interface annoyed me no end when I was looking at unmap_single_vma(), which we can spend quite a lot of time in (especially with loads that have a lot of small fork/exec's: shell scripts etc). Moving the nr_accounted calculations to where they belong at least clarifies things a little. I hope to come back to look at the performance of this later, but if/when I get back to it I at least don't have to see the crazy interfaces any more. * vm-cleanups: vm: remove 'nr_accounted' calculations from the unmap_vmas() interfaces vm: simplify unmap_vmas() calling convention
2012-05-21Merge branch 'v3-removal' into for-linusRussell King
Conflicts: arch/arm/boot/compressed/head.S