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| author | Paul E. McKenney <[email protected]> | 2009-09-28 07:46:33 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2009-10-05 21:02:04 +0200 |
| commit | a0b6c9a78c41dc36732d6e1e90f0f2f57b29816f (patch) | |
| tree | 4e68c76c95a74e1c8f3360c10e2c3496b7a7df0d /lib/cpu-notifier-error-inject.c | |
| parent | 3d76c082907e8f83c5d5c4572f38d53ad8f00c4b (diff) | |
rcu: Clean up code based on review feedback from Josh Triplett, part 4
These issues identified during an old-fashioned face-to-face code
review extending over many hours. This group improves an existing
abstraction and introduces two new ones. It also fixes an RCU
stall-warning bug found while making the other changes.
o Make RCU_INIT_FLAVOR() declare its own variables, removing
the need to declare them at each call site.
o Create an rcu_for_each_leaf() macro that scans the leaf
nodes of the rcu_node tree.
o Create an rcu_for_each_node_breadth_first() macro that does
a breadth-first traversal of the rcu_node tree, AKA
stepping through the array in index-number order.
o If all CPUs corresponding to a given leaf rcu_node
structure go offline, then any tasks queued on that leaf
will be moved to the root rcu_node structure. Therefore,
the stall-warning code must dump out tasks queued on the
root rcu_node structure as well as those queued on the leaf
rcu_node structures.
Signed-off-by: Paul E. McKenney <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
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Cc: [email protected]
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Cc: [email protected]
LKML-Reference: <12541491934126-git-send-email->
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'lib/cpu-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions