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doc: Update whatisRCU.rst

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The kfree_rcu() macro is deprecated.  Rename it to its new
kfree_rcu_mightsleep() name in this documentation.

Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
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Uladzislau Rezki (Sony) 2023-02-01 16:09:53 +01:00 committed by Joel Fernandes (Google)
parent c4af9e0089
commit 81573694a4
1 changed files with 3 additions and 3 deletions
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Documentation/RCU/whatisRCU.rst
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@ -597,10 +597,10 @@ to avoid having to write your own callback::
If the occasional sleep is permitted, the single-argument form may
be used, omitting the rcu_head structure from struct foo.
kfree_rcu(old_fp);
kfree_rcu_mightsleep(old_fp);
This variant of kfree_rcu() almost never blocks, but might do so by
invoking synchronize_rcu() in response to memory-allocation failure.
This variant almost never blocks, but might do so by invoking
synchronize_rcu() in response to memory-allocation failure.
Again, see checklist.rst for additional rules governing the use of RCU.