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2016-02-04orangefs: Only compare attributes specified in orangefs_inode_getattr.Martin Brandenburg1-19/+43
Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-02-04Orangefs: clean up slab allocation.Mike Marshall4-124/+6
A couple of caches were no longer needed: - iov_iter improvements to orangefs_devreq_write_iter eliminated the need for the dev_req_cache. - removal (months ago) of the old AIO code eliminated the need for the kiocb_cache. Also, deobfuscation of use of GFP_KERNEL when calling kmem_cache_(z)alloc for remaining caches. Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-02-04Orangefs: improve gossip statementMike Marshall1-2/+5
There were two just alike, making it hard maybe to tell which one you were looking at in syslog... so I changed it a little by adding some extra interesting tidbits to it... Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-28orangefs: Fix revalidate.Martin Brandenburg5-64/+187
Previously, it would update a live inode. This was fixed, but it did not ever check that the inode attributes in the dcache are correct. This checks all inode attributes and rejects any that are not correct, which causes a lookup and thus a new getattr. Perhaps inode_operations->permission should replace or augment some of this. There is no actual caching, and this does a rather excessive amount of network operations back to the filesystem server. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-28orangefs: Util functions shouldn't operate on inode where it can be avoided.Martin Brandenburg1-39/+43
Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: clean up op_alloc()Al Viro3-22/+9
fold orangefs_op_initialize() in there, don't bother locking something nobody else could've seen yet, use kmem_cache_zalloc() instead of explicit memset()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: move handle_io_error() to file.cAl Viro2-46/+41
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: don't reinvent completion.h...Al Viro5-62/+24
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23if ORANGEFS_VFS_OP_FILE_IO request had been given up, don't bother waitingAl Viro1-16/+16
... we are not going to get woken up anyway, so it's just going to time out and whine. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: get rid of MSECS_TO_JIFFIESAl Viro4-17/+6
All timeouts are in _seconds_, so all calls are of form MSECS_TO_JIFFIES(n * 1000), which is a convoluted way to spell n * HZ. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs_clean_up_interrupted_operation: call with op->lock heldAl Viro1-32/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: reduce nesting in wait_for_matching_downcall()Al Viro1-60/+58
reorder if branches... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: remove cargo-culting spin_lock_irqsave() in service_operation()Al Viro1-7/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: hopefully saner op refcounting and lockingAl Viro8-143/+107
* create with refcount 1 * make op_release() decrement and free if zero (i.e. old put_op() has become that). * mark when submitter has given up waiting; from that point nobody else can move between the lists, change state, etc. * have daemon read/write_iter grab a reference when picking op and *always* give it up in the end * don't put into hash until we know it's been successfully passed to daemon * move op->lock _lower_ than htab_in_progress_lock (and make sure to take it in purge_inprogress_ops()) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: make sure that reopening pvfs2-req won't overlap with the end of closeAl Viro1-3/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: nothing should remain in request list and in hashAl Viro1-22/+2
... otherwise some thread is running in .text that is about to be freed. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: move wakeups into set_op_state_{serviced,purged}()Al Viro1-18/+18
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: make wait_for_...downcall() staticAl Viro1-0/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: move wakeups into set_op_state_{serviced,purged}()Al Viro4-13/+14
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: make wait_for_...downcall() staticAl Viro2-4/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23make orangefs_clean_up_interrupted_operation() staticAl Viro2-2/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: kill orangefs_inode_s ->listAl Viro1-3/+0
no users... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: get rid of <censored> macrosAl Viro2-41/+44
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: ->poll() doesn't need spinlockAl Viro1-2/+0
not just for list_empty()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: kill ioctl32 rudimentsAl Viro1-27/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: ->poll() is only called between successful ->open() and ->release()Al Viro1-7/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: generic_file_open() is pointless for character devicesAl Viro1-3/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: use DEFINE_MUTEX (and mutex_init() had been too late)Al Viro1-5/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-19Orangefs: make gossip statement more palatable to xtensaMike Marshall2-4/+4
Thanks to Intel's kbuild test robot Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-15Orangefs: merge with V4.4Mike Marshall1463-12974/+18471
Merge tag 'v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into current Linux 4.4
2016-01-15Orangefs: add verification to decode_direntsMike Marshall1-25/+93
Also add comments to decode_dirents and make it more readable. Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-13Orangefs: add protocol information to Documentation/filesystems/orangefs.txtMike Marshall1-1/+217
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-13Orangefs: make .statfs gossip_debug more complete.Mike Marshall1-3/+7
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-13Orangefs: define a minimum compatible userspace version.Mike Marshall1-0/+1
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-13Orangefs: change ORANGEFS_VERSION from "Unknown" to "upstream"Mike Marshall1-1/+1
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-13Orangefs: rename orangefs_kernel_op_s.aio_ref_count to just ref_count.Mike Marshall2-7/+6
The op structure's ref_count member hasn't got anything to do with asynchronous I/O. Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-13Orangefs: implement .write_iterMike Marshall1-263/+199
Until now, orangefs_devreq_write_iter has just been a wrapper for the old-fashioned orangefs_devreq_writev... linux would call .write_iter with "struct kiocb *iocb" and "struct iov_iter *iter" and .write_iter would just: return pvfs2_devreq_writev(iocb->ki_filp, iter->iov, iter->nr_segs, &iocb->ki_pos); Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-11Linux 4.4v4.4Linus Torvalds1-1/+1
2016-01-10Merge tag 'scsi-fixes' of ↵Linus Torvalds1-3/+6
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fix from James Bottomley: "A single fix for machines with pages > 4k (PPC mostly). There's a bug in our optimal transfer size code where we don't account for pages > 4k and can set the transfer size to be less than the page size causing nasty failures" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: sd: Reject optimal transfer length smaller than page size
2016-01-10Merge tag 'pci-v4.4-fixes-4' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixlet from Bjorn Helgaas: "This marks the TI DRA7xx host bridge driver as broken. Apparently it has never worked without some additional out-of-tree code, so I'm going to mark it broken now and remove it completely next cycle unless it's fixed" * tag 'pci-v4.4-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: dra7xx: Mark driver as broken
2016-01-09vmstat: allocate vmstat_wq before it is usedMichal Hocko1-1/+1
kernel test robot has reported the following crash: BUG: unable to handle kernel NULL pointer dereference at 00000100 IP: [<c1074df6>] __queue_work+0x26/0x390 *pdpt = 0000000000000000 *pde = f000ff53f000ff53 *pde = f000ff53f000ff53 Oops: 0000 [#1] PREEMPT PREEMPT SMP SMP CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.4.0-rc4-00139-g373ccbe #1 Workqueue: events vmstat_shepherd task: cb684600 ti: cb7ba000 task.ti: cb7ba000 EIP: 0060:[<c1074df6>] EFLAGS: 00010046 CPU: 0 EIP is at __queue_work+0x26/0x390 EAX: 00000046 EBX: cbb37800 ECX: cbb37800 EDX: 00000000 ESI: 00000000 EDI: 00000000 EBP: cb7bbe68 ESP: cb7bbe38 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 CR0: 8005003b CR2: 00000100 CR3: 01fd5000 CR4: 000006b0 Stack: Call Trace: __queue_delayed_work+0xa1/0x160 queue_delayed_work_on+0x36/0x60 vmstat_shepherd+0xad/0xf0 process_one_work+0x1aa/0x4c0 worker_thread+0x41/0x440 kthread+0xb0/0xd0 ret_from_kernel_thread+0x21/0x40 The reason is that start_shepherd_timer schedules the shepherd work item which uses vmstat_wq (vmstat_shepherd) before setup_vmstat allocates that workqueue so if the further initialization takes more than HZ we might end up scheduling on a NULL vmstat_wq. This is really unlikely but not impossible. Fixes: 373ccbe59270 ("mm, vmstat: allow WQ concurrency to discover memory reclaim doesn't make any progress") Reported-by: kernel test robot <ying.huang@linux.intel.com> Signed-off-by: Michal Hocko <mhocko@suse.com> Tested-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Cc: stable@vger.kernel.org Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-09Merge tag 'fixes-for-linus' of ↵Linus Torvalds7-12/+49
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Arnd Bergmann: "This is the final small set of ARM SoC bug fixes for linux-4.4, almost all regressions: OMAP: - data corruption on the Nokia N900 flash Allwinner: - Two defconfig change to get USB working again ARM Versatile: - Interrupt numbers gone bad after an older bug fix Nomadik: - Crashes from incorrect L2 cache settings VIA vt8500: - SD/MMC support on WM8650 never worked" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: dts: vt8500: Add SDHC node to DTS file for WM8650 ARM: Fix broken USB support in multi_v7_defconfig for sunxi devices ARM: versatile: fix MMC/SD interrupt assignment ARM: nomadik: set latencies to 8 cycles ARM: OMAP2+: Fix onenand rate detection to avoid filesystem corruption ARM: Fix broken USB support in sunxi_defconfig
2016-01-09Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2-1/+3
Pull KVM fix from Paolo Bonzini: "A simple fix. I'm sending it before the merge window, because it refines a patch found in your master branch but not yet in the kvm/next branch that is destined for 4.5" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: kvm: x86: only channel 0 of the i8254 is linked to the HPET
2016-01-09Merge tag 'pm+acpi-4.4-final' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "Just one obvious fix that adds a missing function argument in ACPI code introduced recently (Kees Cook)" * tag 'pm+acpi-4.4-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / property: avoid leaking format string into kobject name
2016-01-09Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds13-32/+96
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "A handful of x86 fixes: - a syscall ABI fix, fixing an Android breakage - a Xen PV guest fix relating to the RTC device, causing a non-working console - a Xen guest syscall stack frame fix - an MCE hotplug CPU crash fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/numachip: Fix NumaConnect2 MMCFG PCI access x86/entry: Restore traditional SYSENTER calling convention x86/entry: Fix some comments x86/paravirt: Prevent rtc_cmos platform device init on PV guests x86/xen: Avoid fast syscall path for Xen PV guests x86/mce: Ensure offline CPUs don't participate in rendezvous process
2016-01-09Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds3-8/+11
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Misc scheduler fixes" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Reset task's lockless wake-queues on fork() sched/core: Fix unserialized r-m-w scribbling stuff sched/core: Check tgid in is_global_init() sched/fair: Fix multiplication overflow on 32-bit systems
2016-01-09Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds5-32/+21
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Two core subsystem fixes, plus a handful of tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix race in swevent hash perf: Fix race in perf_event_exec() perf list: Robustify event printing routine perf list: Add support for PERF_COUNT_SW_BPF_OUT perf hists browser: Fix segfault if use symbol filter in cmdline perf hists browser: Reset selection when refresh perf hists browser: Add NULL pointer check to prevent crash perf buildid-list: Fix return value of perf buildid-list -k perf buildid-list: Show running kernel build id fix
2016-01-09Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fix from Ingo Molnar: "Fixes a core IRQ subsystem deadlock" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Prevent chip buslock deadlock
2016-01-09Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+1
Pull block revert from Jens Axboe: "The previous pull request had a split fix for NVMe, however there are corner cases where that ends up blowing up. So let's revert it for 4.4. The regression isn't introduced in this cycle, and it's "just" a performance regression, not a stability/integrity issue" * 'for-linus' of git://git.kernel.dk/linux-block: Revert "block: Split bios on chunk boundaries"
2016-01-08Merge tag 'dmaengine-fix-4.4' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds6-17/+16
Pull dmaengine fixes from Vinod Koul: "Late fixes for 4.4 are three fixes for drivers which include a revert of mic-x100 fix which is causing regression, xgene fix for double IRQ and async_tx fix to use GFP_NOWAIT" * tag 'dmaengine-fix-4.4' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: xgene-dma: Fix double IRQ issue by setting IRQ_DISABLE_UNLAZY flag async_tx: use GFP_NOWAIT rather than GFP_IO dmaengine: Revert "dmaengine: mic_x100: add missing spin_unlock"
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