• Linus Torvalds's avatar
    Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux · 02201e3f
    Linus Torvalds authored
    Pull module updates from Rusty Russell:
     "Main excitement here is Peter Zijlstra's lockless rbtree optimization
      to speed module address lookup.  He found some abusers of the module
      lock doing that too.
    
      A little bit of parameter work here too; including Dan Streetman's
      breaking up the big param mutex so writing a parameter can load
      another module (yeah, really).  Unfortunately that broke the usual
      suspects, !CONFIG_MODULES and !CONFIG_SYSFS, so those fixes were
      appended too"
    
    * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (26 commits)
      modules: only use mod->param_lock if CONFIG_MODULES
      param: fix module param locks when !CONFIG_SYSFS.
      rcu: merge fix for Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE()
      module: add per-module param_lock
      module: make perm const
      params: suppress unused variable error, warn once just in case code changes.
      modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'.
      kernel/module.c: avoid ifdefs for sig_enforce declaration
      kernel/workqueue.c: remove ifdefs over wq_power_efficient
      kernel/params.c: export param_ops_bool_enable_only
      kernel/params.c: generalize bool_enable_only
      kernel/module.c: use generic module param operaters for sig_enforce
      kernel/params: constify struct kernel_param_ops uses
      sysfs: tightened sysfs permission checks
      module: Rework module_addr_{min,max}
      module: Use __module_address() for module_address_lookup()
      module: Make the mod_tree stuff conditional on PERF_EVENTS || TRACING
      module: Optimize __module_address() using a latched RB-tree
      rbtree: Implement generic latch_tree
      seqlock: Introduce raw_read_seqcount_latch()
      ...
    02201e3f
seqlock.h 15.9 KB