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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-11-06 23:05:32 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-12-05 12:34:32 -0800 |
| commit | c64c4b0f9a183e4c73abff848378afa6edf796c5 (patch) | |
| tree | bd0fa2e58b367e35dae47101ebd0de4b28642e9c /Documentation/memory-barriers.txt | |
| parent | 4b689330b1a5858e88831b3752e9a6692a5c7bdb (diff) | |
documentation: Update RCU requirements based on expedited changes
Because RCU-sched expedited grace periods now use IPIs and interact
with rcu_read_unlock(), it is no longer sufficient to disable preemption
across RCU read-side critical sections that acquire and hold scheduler
locks. It is now necessary to instead disable interrupts. This commit
documents this change.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation/memory-barriers.txt')
0 files changed, 0 insertions, 0 deletions