Changeset 235d31d in mainline

2014-12-22T17:47:40Z (9 years ago)
Jakub Jermar <jakub@…>
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
eae91e0 (diff), 759ea0d (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Merge the CHT pre-integration branch

This branch contains:

  • the merge of lp:~adam-hraska+lp/helenos/rcu, which brings:
  • a new preemptible kernel RCU variant called A-RCU,
  • a preemptible variant of Podzimek's non-preemptible kernel RCU and
  • a new variant of usersace RCU,
  • a new concurrent hash table (CHT) implementation based on RCU,
  • a deployment of CHT in kernel futex handling,
  • a deployment of the userspace RCU in the implementation of upgradable futexes,

all described in Adam Hraska's master thesis named Read-Copy-Update
for HelenOS, defended in 2013 at MFF UK; furthemore, the branch
fixes two synchronization bugs in condvars and waitq, respectively:

  • build fixes required to pass make check
  • overhaul of ia64 and sparc64 trap handling, to allow exc_dispatch() to be used now when the kernel is more picky about CPU state accounting
  • an important fix of the sparc64/sun4v preemptible trap handler
  • various other fixes of issues discovered on non-x86 architectures
44 added
140 edited

Changeset view not shown, since the total size (2.1 MB) exceeds 976.6 KB

Note: See TracChangeset for help on using the changeset viewer.