Eric Lee / smarc-fsl-linux-kernel

29 Jul, 2020

1 commit

  • 5c73b9a2b   kvm/eventfd: Use sequence counter with associated spinlock ... Browse Code »

    A sequence counter write side critical section must be protected by some
    form of locking to serialize writers. A plain seqcount_t does not
    contain the information of which lock must be held when entering a write
    side critical section.

    Use the new seqcount_spinlock_t data type, which allows to associate a
    spinlock with the sequence counter. This enables lockdep to verify that
    the spinlock used for writer serialization is held when the write side
    critical section is entered.

    If lockdep is disabled this lock association is compiled out and has
    neither storage size nor runtime overhead.

    Signed-off-by: Ahmed S. Darwish
    Signed-off-by: Peter Zijlstra (Intel)
    Acked-by: Paolo Bonzini
    Link: https://lkml.kernel.org/r/20200720155530.1173732-24-a.darwish@linutronix.de

    Ahmed S. Darwish
     

19 Jun, 2019

1 commit

  • 2504ba9f5   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235 ... Browse Code »

    Based on 1 normalized pattern(s):

    this program is free software you can redistribute it and or modify
    it under the terms of the gnu general public license as published by
    the free software foundation either version 2 of the license this
    program is distributed in the hope that it will be useful but
    without any warranty without even the implied warranty of
    merchantability or fitness for a particular purpose see the gnu
    general public license for more details

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

    has been chosen to replace the boilerplate/reference in 53 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Allison Randal
    Reviewed-by: Alexios Zavras
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190602204653.904365654@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

20 Jun, 2017

1 commit

  • ac6424b98   sched/wait: Rename wait_queue_t => wait_queue_entry_t ... Browse Code »

    Rename:

    wait_queue_t => wait_queue_entry_t

    'wait_queue_t' was always a slight misnomer: its name implies that it's a "queue",
    but in reality it's a queue *entry*. The 'real' queue is the wait queue head,
    which had to carry the name.

    Start sorting this out by renaming it to 'wait_queue_entry_t'.

    This also allows the real structure name 'struct __wait_queue' to
    lose its double underscore and become 'struct wait_queue_entry',
    which is the more canonical nomenclature for such data types.

    Cc: Linus Torvalds
    Cc: Peter Zijlstra
    Cc: Thomas Gleixner
    Cc: linux-kernel@vger.kernel.org
    Signed-off-by: Ingo Molnar

    Ingo Molnar
     

01 Oct, 2015

2 commits

  • 9016cfb57   KVM: eventfd: add irq bypass consumer management ... Browse Code »

    This patch adds the registration/unregistration of an
    irq_bypass_consumer on irqfd assignment/deassignment.

    Signed-off-by: Eric Auger
    Signed-off-by: Feng Wu
    Reviewed-by: Alex Williamson
    Signed-off-by: Paolo Bonzini

    Eric Auger
     
  • 166c9775f   KVM: create kvm_irqfd.h ... Browse Code »

    Move _irqfd_resampler and _irqfd struct declarations in a new
    public header: kvm_irqfd.h. They are respectively renamed into
    kvm_kernel_irqfd_resampler and kvm_kernel_irqfd. Those datatypes
    will be used by architecture specific code, in the context of
    IRQ bypass manager integration.

    Signed-off-by: Eric Auger
    Signed-off-by: Feng Wu
    Reviewed-by: Alex Williamson
    Signed-off-by: Paolo Bonzini

    Eric Auger