kernel/linux.git/Documentation/RCU, branch v6.6.132

doc: rcu: update printed dynticks counter bits

2024-12-09T09:31:48+00:00

[ Upstream commit 4a09e358922381f9b258e863bcd9c910584203b9 ] The stall warning prints 16 bits since commit 171476775d32 ("context_tracking: Convert state to atomic_t"). Fixes: 171476775d32 ("context_tracking: Convert state to atomic_t") Signed-off-by: Baruch Siach Reviewed-by: "Paul E. McKenney" Signed-off-by: Neeraj Upadhyay Signed-off-by: Frederic Weisbecker Signed-off-by: Sasha Levin

Docs/RCU/rculist_nulls: Fix text about atomic_set_release()

2023-07-14T21:55:57+00:00

The document says we can avoid extra _release() in insert function when hlist_nulls is used, but that's not true[1]. Drop it. [1] https://lore.kernel.org/rcu/46440869-644a-4982-b790-b71b43976c66@paulmck-laptop/ Signed-off-by: SeongJae Park Signed-off-by: Paul E. McKenney

Docs/RCU/rculist_nulls: Fix hlist_[nulls]_head field names of 'obj'

2023-07-14T21:55:56+00:00

The example code snippets on rculist_nulls.rst are assuming 'obj' to have the 'hlist_head' or 'hlist_nulls_head' field named 'obj_node', but a sentence and some code snippets are wrongly calling 'obj->obj_node.next' as 'obj->obj_next', or 'obj->obj_node' as 'member'. Fix it. Signed-off-by: SeongJae Park Signed-off-by: Paul E. McKenney

Docs/RCU/rculist_nulls: Specify type of the object in examples

2023-07-14T21:55:56+00:00

The type of 'obj' in example code of rculist_nulls.rst is implicit. Provide the specific type of it before the example code. Suggested-by: Paul E. McKenney Link: https://lore.kernel.org/rcu/43943609-f80c-4b6a-9844-994eef800757@paulmck-laptop/ Signed-off-by: SeongJae Park Signed-off-by: Paul E. McKenney

Docs/RCU/rculist_nulls: Assign 'obj' before use from the examples

2023-07-14T21:55:56+00:00

Lookup example code snippets in rculist_nulls.rst are using 'obj' without assignment. Fix the code to assign it properly. Signed-off-by: SeongJae Park Reviewed-by: Joel Fernandes (Google) Signed-off-by: Paul E. McKenney

Docs/RCU/rculist_nulls: Fix trivial coding style

2023-07-14T21:55:56+00:00

Lookup example of non-hlist_nulls management is missing a semicolon, and having inconsistent indentation (one line is using single space indentation while others are using two spaces indentation). Fix the trivial issues. Signed-off-by: SeongJae Park Reviewed-by: Joel Fernandes (Google) Signed-off-by: Paul E. McKenney

docs/RCU: Add the missing rcu_read_unlock()

2023-07-14T21:55:56+00:00

We should exit the RCU read-side critical section before re-entering. Signed-off-by: Alan Huang Signed-off-by: Paul E. McKenney

documentation/rcu: Fix typo

2023-07-14T21:55:56+00:00

s/slat/splat/ Signed-off-by: Tycho Andersen Signed-off-by: Paul E. McKenney

rcu: Remove RCU_NONIDLE()

2023-05-11T20:42:04+00:00

Since there are now exactly _zero_ users of RCU_NONIDLE(), make it go away before someone else decides to (ab)use it. [ paulmck: Remove extraneous whitespace. ] Signed-off-by: Peter Zijlstra (Intel) Acked-by: Mark Rutland Acked-by: Frederic Weisbecker Signed-off-by: Paul E. McKenney

doc: Update whatisRCU.rst

2023-04-05T13:47:18+00:00

The kfree_rcu() macro is deprecated. Rename it to its new kfree_rcu_mightsleep() name in this documentation. Acked-by: Joel Fernandes (Google) Signed-off-by: Uladzislau Rezki (Sony) Signed-off-by: Paul E. McKenney Signed-off-by: Joel Fernandes (Google)