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| author | Frederic Weisbecker <frederic@kernel.org> | 2023-09-08 22:36:03 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <frederic@kernel.org> | 2023-10-04 22:38:35 +0200 |
| commit | a28ab03b499601c14b8f502d875c2bee23209659 (patch) | |
| tree | d294fbfd3b574808d54348d25ba9f2d49779fd3d /kernel/rcu/tree_exp.h | |
| parent | 448e9f34d91d1a4799fdb06a93c2c24b34b6fd9d (diff) | |
rcu: Comment why callbacks migration can't wait for CPUHP_RCUTREE_PREP
The callbacks migration is performed through an explicit call from
the hotplug control CPU right after the death of the target CPU and
before proceeding with the CPUHP_ teardown functions.
This is unusual but necessary and yet uncommented. Summarize the reason
as explained in the changelog of:
a58163d8ca2c (rcu: Migrate callbacks earlier in the CPU-offline timeline)
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Diffstat (limited to 'kernel/rcu/tree_exp.h')
0 files changed, 0 insertions, 0 deletions