Hello!
This series provides miscellaneous fixes:
1. Removes the CONFIG_RCU_CPU_STALL_VERBOSE, so that RCU CPU stall
warnings are henceforth unconditionally verbose. (Another RCU
Kconfig variable bites the dust!)
2. Allow 1- and 2-byte smp_load_acquire() and smp_store_release().
This has the side effect of removing support for pre-EV56 Alpha
CPUs, and the official Alpha maintainers have thus far been
silent on this issue.
3. Use rcu_dereference() for accessing struct mapped_device,
courtesy of Pranith Kumar.
4. Annotate the dm_table's ->map field with __rcu, courtesy of
Pranith Kumar.
5. Add sparse checking for use of RCU_INIT_POINTER() on a non-__rcu
pointer, courtesy of Pranith Kumar.
6. Prevent cond_resched_rcu_qs() from doing gratuitous call to
rcu_note_voluntary_context_switch().
7. Update the list of rcu_read_unlock() potential deadlocks, courtesy
of Oleg Nesterov.
8. Bind rcu_tasks_kthread() to housekeeping CPUs in CONFIG_NO_HZ_FULL
builds.
9. Provide lockless_dereference() for times when you want
rcu_dereference(), but without the sparse and lockdep-RCU noise.
Thanx, Paul
------------------------------------------------------------------------
b/Documentation/RCU/stallwarn.txt | 6 --
b/drivers/md/dm.c | 10 ++--
b/include/linux/compiler.h | 2
b/include/linux/rcupdate.h | 24 ++++++++--
b/kernel/rcu/tree_plugin.h | 13 -----
b/kernel/rcu/update.c | 3 -
b/lib/Kconfig.debug | 12 -----
b/tools/testing/selftests/rcutorture/configs/rcu/TREE01 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE02 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE03 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE05 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE06 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE07 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE09 | 1
b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt | 3 -
19 files changed, 30 insertions(+), 54 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
